[{"i":"NcbWH","f":"2r3k1/2P2ppp/8/3p4/8/3qP1P1/1RR2P1P/1K6 b - - 0 38","m":"c8c7 b2b8 c7c8 b8c8","r":511,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Nd86d","f":"k2Rr3/ppQ5/5p1p/4p3/8/P4q2/KPP5/8 b - - 3 37","m":"e8d8 c7d8","r":521,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"Ndii7","f":"5r1k/pp2p2p/3r2p1/2Q3B1/2RP4/8/6PP/4Rq1K w - - 3 30","m":"e1f1 f8f1","r":482,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Ne2KA","f":"6r1/5p1k/2p1p1p1/pp5p/3rqP1P/4P1R1/PPP3R1/1K2Q3 w - - 0 33","m":"e3d4 e4e1","r":552,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"Ne63j","f":"6k1/5ppp/4p3/3p4/5PPP/P4QK1/1q6/8 b - - 2 32","m":"d5d4 f3a8 b2b8 a8b8","r":421,"t":"backRankMate endgame mate mateIn2 queenEndgame short"},{"i":"Ne8Gp","f":"r1b1r1k1/ppp1Qppp/8/2n5/8/5N2/PPP2PPP/2KR1B1R b - - 0 14","m":"e8e7 d1d8 e7e8 d8e8","r":549,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"NeQ6L","f":"6k1/5ppp/p1r5/2P2P2/4n3/2Q3P1/P6P/4R2K b - - 0 32","m":"e4c3 e1e8","r":423,"t":"backRankMate endgame master masterVsMaster mate mateIn1 oneMove"},{"i":"NeS4Q","f":"2q3k1/1QB2ppp/p7/6b1/8/P7/1P3PPP/4R1K1 b - - 0 27","m":"c8b7 e1e8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"NfJcC","f":"1r5k/6pp/1Q3b2/3B4/p7/8/6PP/2R3K1 b - - 0 35","m":"b8b6 c1c8 f6d8 c8d8","r":582,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NfLC5","f":"3r2k1/p4ppp/4p2b/2R5/P2B2bP/1P6/5P2/6K1 b - - 0 28","m":"d8d4 c5c8 d4d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NffOY","f":"3Q1rk1/ppp2ppp/8/2p1Pq2/5P2/5K2/PPP3PP/3RR3 b - - 0 18","m":"f8d8 d1d8","r":523,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"NfxGY","f":"2bkr3/2b3p1/2P3pp/3Pr3/3Q4/8/P4PPP/2R3K1 w - - 5 30","m":"d5d6 e5e1 c1e1 e8e1","r":547,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NfzRq","f":"4r1k1/p1R2ppp/8/1p6/4Q3/P5PP/5PK1/8 b - - 0 33","m":"e8e4 c7c8 e4e8 c8e8","r":497,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Ng8cr","f":"5rk1/ppp3pp/3p4/3Pp3/2P1q2N/3Q3n/PP3rPP/R6K w - - 0 23","m":"d3e4 f2f1 a1f1 f8f1","r":552,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"Nh0wW","f":"3r4/6pk/p3P2p/8/8/8/1P4PP/4R2K w - - 2 35","m":"e1e5 d8d1 e5e1 d1e1","r":519,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Nh4kJ","f":"8/6k1/8/3B4/pp2N3/8/Pr3bPP/5R1K w - - 0 36","m":"f1f2 b2b1 f2f1 b1f1","r":513,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NhJ5S","f":"2k4r/1p6/3R2p1/8/8/2N5/PPP3p1/1K6 w - - 0 33","m":"d6g6 h8h1 c3d1 h1d1","r":591,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NhVPZ","f":"Q4rk1/5ppp/8/8/p7/1q6/2R2PPP/2R3K1 b - - 0 27","m":"f8a8 c2c8 a8c8 c1c8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Nhj6d","f":"5k2/1b1r4/p5Q1/1p6/4Pq2/8/PPPN4/1K4R1 w - - 1 31","m":"g1f1 f4f1 d2f1 d7d1","r":591,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"NiRzW","f":"r1b3k1/p1p2ppp/8/N1b5/8/8/PPPP1qPP/R1BQr2K w - - 0 15","m":"d1e1 f2e1","r":571,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"NiY7M","f":"3r1r2/ppn1k3/2p1pp1p/8/2P5/6Q1/PP2R2P/K2qR3 w - - 2 41","m":"e1d1 d8d1","r":409,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Nidx8","f":"2Qr1k2/5ppB/8/p2r4/1p6/4B3/P4PPP/6K1 w - - 2 33","m":"c8c1 d5d1 c1d1 d8d1","r":555,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"NjASm","f":"6k1/p4ppp/p7/8/2NrP3/4K3/nR3PPP/8 b - - 1 26","m":"d4c4 b2b8 c4c8 b8c8","r":483,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NjHzE","f":"r1b3k1/1pq1nppp/p3p3/4P3/1PB5/P7/3Q1PPP/R3R1K1 b - - 0 18","m":"c7c4 d2d8","r":486,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"NjOf6","f":"3r1rk1/1p3pbp/p4np1/4p3/2P5/4P3/PB2bPPP/RN2R1K1 w - - 0 18","m":"e1e2 d8d1 e2e1 d1e1","r":467,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"NjdUG","f":"3Q2k1/5ppp/8/pq6/4P3/2Pr1B1P/1P3PP1/3R2K1 b - - 0 33","m":"d3d8 d1d8 b5e8 d8e8","r":440,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NjmfF","f":"8/p4kpp/8/8/4n3/P7/3r2PP/4R2K w - - 0 23","m":"e1e4 d2d1 e4e1 d1e1","r":476,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"NjnZ1","f":"4r1k1/r4npp/p2P4/2N1p3/2NR4/1P4PP/P5K1/4R3 b - - 0 31","m":"e5d4 e1e8","r":506,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"NjzgK","f":"3r3k/1p4p1/p1n3Qp/4q3/8/2P5/P1P2PPP/4R1K1 w - - 2 27","m":"e1e5 d8d1 e5e1 d1e1","r":471,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NkDqi","f":"1r4k1/pr2pp1p/6p1/3Pq3/R1PQ4/4P3/5PPP/R5K1 w - - 6 24","m":"d4e5 b7b1 a1b1 b8b1","r":533,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Nkqqd","f":"6k1/pRNr1ppp/2p3b1/8/8/P1Nn3P/5PP1/6K1 b - - 0 28","m":"d3c5 b7b8 d7d8 b8d8","r":513,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NkvWp","f":"6k1/5pbp/2p3p1/P3p3/8/r3P2P/5PPB/2R3K1 w - - 0 26","m":"c1c5 a3a1 c5c1 a1c1","r":552,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NlC9E","f":"2k5/pp3p2/2pRpppb/8/6P1/2Q2P2/PPP5/1K5r w - - 1 27","m":"d6d1 h1d1","r":491,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"NlGFL","f":"8/2R2pk1/p5pp/8/1Pp1B3/8/r4PPP/6K1 w - - 0 27","m":"c7c4 a2a1 e4b1 a1b1 c4c1 b1c1","r":466,"t":"backRankMate endgame long mate mateIn3"},{"i":"NmEui","f":"5rk1/1pq2pp1/1p2b2p/4N3/8/4B1Q1/rP1R1PPP/R5K1 w - - 0 25","m":"a1a2 c7c1 d2d1 c1d1","r":521,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Nma1d","f":"1k6/ppp5/3p3p/P3n1P1/1P2Q1q1/8/6P1/4NRK1 b - - 0 30","m":"g4e4 f1f8","r":479,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"NnkmX","f":"3q2k1/p4ppp/2p1p3/2n5/2P5/QP6/P4PPP/6K1 w - - 0 25","m":"a3c5 d8d1","r":437,"t":"backRankMate endgame mate mateIn1 oneMove queenEndgame"},{"i":"NnmRK","f":"r4rk1/ppp3bp/6p1/1N2p1B1/2Pq4/3P4/PP4PP/R2b1R1K w - - 0 16","m":"b5d4 f8f1","r":538,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"Nnxp2","f":"5r1k/pp4bB/4b1Qp/3p2p1/1P6/P4N2/6PP/4q2K w - - 0 26","m":"f3e1 f8f1","r":513,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"NoCKw","f":"3q4/p5kp/1p3p2/5Pp1/2P1Q3/8/P5PP/2Rr3K w - - 4 36","m":"c1d1 d8d1 e4e1 d1e1","r":445,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NoMDo","f":"6k1/3q1ppp/2p3b1/B2p4/8/r1P3QP/5PP1/2R3K1 b - - 0 24","m":"a3a5 g3b8 d7c8 b8c8","r":584,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Not9o","f":"8/r5pk/5p1p/5N2/3P4/1pP1R3/P4PPP/6K1 w - - 0 35","m":"a2b3 a7a1 e3e1 a1e1","r":448,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Nov3E","f":"5r1k/4r1pp/1p6/8/2QR4/5P2/PP4PP/3Rq2K w - - 3 31","m":"d1e1 e7e1 c4f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Np9OW","f":"4r1k1/5ppp/p2R4/1p6/8/6P1/PPr2P1P/1R4K1 b - - 0 24","m":"e8e2 d6d8 e2e8 d8e8","r":485,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"NpZ2m","f":"6k1/6p1/1q2pr1p/4Rp2/P2P4/2r5/5PPP/1R4K1 w - - 0 26","m":"b1b6 c3c1 e5e1 c1e1","r":535,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Nqmhm","f":"1r3Q1k/3q2pp/3P2p1/p1pB4/3p2PP/1P2b3/P5K1/5R2 b - - 4 31","m":"b8f8 f1f8","r":433,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"NrmKF","f":"4r1k1/pp3p2/5q2/8/7Q/8/P5PP/7K w - - 0 32","m":"h4f6 e8e1 f6f1 e1f1","r":475,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"NrxyO","f":"r5k1/5pp1/4p2p/1p1p1n2/1P1P2Q1/2q2N2/5PPP/2R3K1 w - - 0 26","m":"c1c3 a8a1 c3c1 a1c1 f3e1 c1e1","r":578,"t":"backRankMate endgame long mate mateIn3"},{"i":"Nsf8T","f":"8/4kpp1/4p2p/8/1P1P4/3r4/2r2PPP/3R2K1 w - - 0 28","m":"d1d3 c2c1 d3d1 c1d1","r":404,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Nsinr","f":"3r2k1/1p2qppp/p1n2N2/2P2b2/1P1r4/P6P/4QPP1/R3R1K1 b - - 3 22","m":"e7f6 e2e8 d8e8 e1e8","r":587,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"Nsnjr","f":"4r1k1/1p2Qppp/p6b/8/8/P1N5/1PP3PP/1K1R4 b - - 0 24","m":"e8e7 d1d8 e7e8 d8e8","r":454,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NstUr","f":"3r2k1/p5pp/1pp1rp2/5b2/8/2P3Q1/PRP2PPP/1R1q2K1 w - - 4 29","m":"b1d1 d8d1","r":595,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Nswl1","f":"3r2k1/2p2ppp/ppr5/4R3/3P4/P3P3/1P2RPP1/6K1 b - - 1 28","m":"d8d6 e5e8","r":488,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"NsxJk","f":"1qQ3k1/p1R2ppp/4p1b1/8/3P4/4P1K1/r4PPP/7R b - - 7 24","m":"b8c8 c7c8","r":409,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"NszaG","f":"5r2/1pk2r1p/2pp2p1/R1n5/1PP5/8/6PP/R1Q2q1K w - - 0 33","m":"c1f1 f7f1 a1f1 f8f1","r":494,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NtZIf","f":"2r1rk2/3bq3/p6p/1p1pBpp1/3P4/P1P5/2Q2PPP/R3R1K1 w - - 0 25","m":"e5g3 e7e1 a1e1 e8e1","r":495,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"NtzbX","f":"6k1/pp3ppp/2p1p3/8/2PQ1P2/1K6/PP2q1PP/8 b - - 3 26","m":"e2g2 d4d8","r":503,"t":"backRankMate endgame mate mateIn1 oneMove queenEndgame"},{"i":"Nu0eg","f":"2k4r/pppnRp2/6p1/3p2K1/8/B1PP3P/P1P2P2/8 b - - 3 27","m":"h8h3 e7e8","r":421,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Nu5VZ","f":"3r4/1p3Rbk/p1p3p1/P3p1QN/4P3/8/1P4PP/R2q3K w - - 1 34","m":"a1d1 d8d1 f7f1 d1f1","r":501,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Nu6N6","f":"rn2Q1kr/pp1b1ppp/1bpp2q1/6B1/2PP2n1/2N2NP1/PP3PBP/R3R1K1 b - - 10 14","m":"d7e8 e1e8","r":507,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"NumVK","f":"rn4k1/p2bRppp/2p2p2/1p6/3P4/1BP2N2/PP1K2PP/8 b - - 1 17","m":"d7e6 e7e8","r":533,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Nur6d","f":"r2r2k1/pQ3ppp/4pR2/1p6/4R3/3B4/PPP4P/1K4q1 w - - 1 25","m":"f6f1 g1f1 d3f1 d8d1","r":595,"t":"backRankMate master mate mateIn2 middlegame sacrifice short"},{"i":"NvD3x","f":"5r1k/7p/1p6/4p3/1Pn5/8/Q2B2PP/4Rq1K w - - 3 36","m":"e1f1 f8f1","r":514,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"NvYg0","f":"1Rb2rk1/2n3p1/6N1/3p3p/3Pp3/4P1P1/6PP/Q4q1K w - - 2 30","m":"a1f1 f8f1","r":457,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"NvrvI","f":"rn6/p1r2P2/kp2b3/8/8/5N2/P4PPP/6KR w - - 0 35","m":"f7f8q c7c1 f3e1 c1e1","r":594,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"NvtDM","f":"4r1k1/2p1Qppp/1p6/4P3/8/r4b1P/2P2PP1/3RR1K1 b - - 0 20","m":"e8e7 d1d8 e7e8 d8e8","r":408,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Nw8nl","f":"1k4Q1/ppp1n3/2n5/3p3p/3P4/2Pq4/PP1N4/R4RK1 b - - 0 25","m":"e7g8 f1f8 c6d8 f8d8","r":580,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"NwGPa","f":"1R6/5ppk/1p1Bb2p/p7/r7/8/2PR1PPP/6K1 w - - 0 29","m":"b8b6 a4a1 b6b1 a1b1 d2d1 b1d1","r":414,"t":"backRankMate endgame long mate mateIn3"},{"i":"Nwcnu","f":"2k5/pppn4/5p2/2PP3q/7p/1P3Q1P/PB3Pr1/4RK2 b - - 0 31","m":"h5f3 e1e8","r":487,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Nx7Ds","f":"r5k1/1Q1q1ppp/3p2b1/2r5/p5P1/P1N1RN1P/1P3P2/2K1R3 b - - 0 25","m":"d7b7 e3e8 a8e8 e1e8","r":420,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"NxGSC","f":"5r1k/3p2pp/p7/4p3/1p1b2P1/7P/P7/2R4K b - - 0 37","m":"f8f2 c1c8 f2f8 c8f8","r":433,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Nxnxi","f":"k7/1p5p/p1q3p1/8/3Q4/1P2N3/P4PPP/6K1 w - - 1 32","m":"e3d5 c6c1 d4d1 c1d1","r":486,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NyDPE","f":"1Q4k1/5ppp/2q1p3/4b3/8/6P1/5P1P/1R4K1 b - - 0 32","m":"e5b8 b1b8 c6c8 b8c8","r":542,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NyeGU","f":"r3Q1kr/pp3ppp/n1p2p2/8/3P1q2/5B2/PPP2PP1/R3R2K b - - 3 17","m":"a8e8 e1e8","r":529,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Nyu3m","f":"6k1/2Q2pp1/2N1pn1p/2qp4/8/1P3P2/6PP/1Rr4K w - - 3 35","m":"b1c1 c5c1","r":521,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"NzLDB","f":"2k2b1r/ppp1r1p1/2np1n1p/7B/3P3B/2P2R2/PP4PP/RN5K w - - 0 16","m":"h4f6 e7e1 f3f1 e1f1","r":505,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"NziDF","f":"6k1/p4ppp/8/3P4/qp1N1b2/n3pK1P/6P1/2R5 b - - 1 32","m":"b4b3 c1c8 a4e8 c8e8","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"NzuqU","f":"7k/6pp/8/p4p2/3q4/P2P1b2/K7/1R6 b - - 9 45","m":"d4d3 b1b8 d3d8 b8d8","r":459,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"NzzdN","f":"6k1/pp3ppb/4p2p/1P2P3/2rR4/B7/4nPPP/2R2K2 b - - 2 25","m":"c4d4 c1c8 d4d8 c8d8","r":470,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O000j","f":"6k1/5ppp/4pn2/8/2K5/2p1P3/n1Nb1PPP/R7 b - - 3 31","m":"a2c1 a1a8 f6e8 a8e8","r":531,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O0i2M","f":"r5k1/5pp1/1Q2pn1p/1p1p4/3B4/2P5/2q2PPP/2R3K1 w - - 0 24","m":"c1c2 a8a1 c2c1 a1c1","r":493,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O0mh4","f":"r5k1/5ppp/2r1p3/pp1b4/8/1PPR3P/P1B2PP1/3R2K1 b - - 2 24","m":"d5e4 d3d8 a8d8 d1d8","r":587,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O0pnd","f":"7k/3b2bp/1pN2pp1/pq2p3/2N1P3/3Q4/5PPP/6K1 w - - 0 32","m":"d3d7 b5b1 d7d1 b1d1","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O1Ryi","f":"2R1rbk1/3n2pp/2p2p2/p1Pp4/Q2P4/P1N4P/5PPB/1r4K1 w - - 0 24","m":"c3b1 e8e1","r":420,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"O1kLG","f":"4r1k1/R4p1p/1p4p1/2p5/8/2n5/P4PPP/2R3K1 w - - 1 28","m":"c1c3 e8e1","r":544,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"O1p7k","f":"6k1/5ppp/1p2r3/R1p5/2b5/2P1B1P1/1R2PP1P/6K1 b - - 0 25","m":"b6a5 b2b8 e6e8 b8e8","r":592,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O22iZ","f":"5qk1/1Q5p/4r1p1/1p3p2/p6R/2P1N3/PP4PP/3r3K w - - 1 32","m":"e3d1 e6e1","r":457,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"O2OWw","f":"2r4k/6pp/5p2/2R1p3/R3P3/5P2/6PP/7K b - - 0 32","m":"c8c5 a4a8 c5c8 a8c8","r":539,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"O30ih","f":"2q3k1/5pp1/3Pp2p/3n4/P2b4/1P1Q3P/5PPB/6K1 w - - 0 39","m":"d3d4 c8c1 d4d1 c1d1","r":477,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O33iq","f":"2r4k/6pp/p1B2p2/4r3/8/P3N1P1/7P/2BR2K1 b - - 0 30","m":"c8c6 d1d8 e5e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O35Kz","f":"8/ppQ1rpkp/6p1/1N6/4r3/7P/PPP2PP1/3R2K1 w - - 1 24","m":"c7h2 e4e1 d1e1 e7e1","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O3CfO","f":"5r1k/1p4p1/p3p2p/3p4/3P4/P2Q2P1/6PP/5q1K w - - 4 36","m":"d3f1 f8f1","r":474,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"O3DDw","f":"r5n1/5p1k/p2p3p/1p1N1PpQ/8/1PR5/P1P2qPP/R3r2K w - - 13 28","m":"a1e1 f2e1","r":537,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"O3JA5","f":"r1b1r2k/pp3pp1/3p1b2/1Pp2B2/2Pp4/P7/1BQP1PPP/R3q1KR w - - 9 18","m":"a1e1 e8e1","r":420,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"O3LP2","f":"6k1/1pp1rppp/p7/8/2P5/1P1b3P/P4PPN/3R2K1 b - - 1 25","m":"d3g6 d1d8 e7e8 d8e8","r":486,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O3dGX","f":"2b1r2k/5p1p/1p4n1/p1p5/3b4/1BNP2R1/PPP3PP/5R1K w - - 2 26","m":"f1f7 e8e1 f7f1 e1f1","r":434,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"O3lAg","f":"3r2k1/1pp1Qppp/p1n1b3/4r3/8/1P2B1P1/P4PBP/3RR1K1 b - - 0 22","m":"c6e7 d1d8","r":429,"t":"backRankMate hangingPiece master mate mateIn1 middlegame oneMove"},{"i":"O3sMN","f":"6k1/1R3ppp/1p6/p7/8/P6P/1P3PPK/3r4 b - - 1 24","m":"d1d6 b7b8 d6d8 b8d8","r":550,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"O4RdW","f":"3rQ2k/q5pp/8/2R1R3/5P2/1n5P/6P1/6K1 b - - 6 39","m":"d8e8 e5e8","r":407,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"O4dxy","f":"2rQ3k/p4Bpp/1p2P3/8/4bP2/2P5/PP4qP/2KR4 b - - 2 26","m":"c8d8 d1d8","r":439,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"O4eA3","f":"1r1rR2k/p1q3pp/8/8/3P4/B3QP1n/P2K1P2/4R3 b - - 6 31","m":"d8e8 e3e8 b8e8 e1e8","r":514,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"O4s81","f":"3r1r2/2p1b1pp/2B5/2kPp3/4n3/R7/PPP4P/1K2R3 w - - 4 26","m":"e1e4 f8f1 e4e1 f1e1","r":555,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O52O2","f":"6k1/5p1p/3rp1p1/p7/4P3/2r5/P4PPP/3R2K1 w - - 0 29","m":"d1d6 c3c1 d6d1 c1d1","r":457,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"O53Vk","f":"r2R3k/1p2Q1pp/p3B3/8/1P6/q7/6PP/7K b - - 1 26","m":"a8d8 e7d8","r":511,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"O5fTn","f":"2q4k/5ppp/p1Qp4/5P2/2P2P1b/8/6PK/1R6 b - - 0 30","m":"c8c6 b1b8 h4d8 b8d8 c6e8 d8e8","r":586,"t":"backRankMate endgame long mate mateIn3"},{"i":"O5i2Y","f":"7k/4pp1p/2Bn2p1/2B1b3/8/8/2r2PPP/4R1K1 w - - 4 25","m":"e1e5 c2c1 e5e1 c1e1","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O7Ly3","f":"3r4/4R1pp/p1pB1k2/1p6/1P6/8/2P2PPP/6K1 w - - 3 34","m":"d6c5 d8d1 e7e1 d1e1","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O7Wta","f":"3rk3/ppp1p3/2n1N3/8/8/3q4/PP3PPQ/1K5R w - - 1 29","m":"b1a1 d3d1 h1d1 d8d1","r":562,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"O7si9","f":"2kr4/p1p2p1p/6p1/2P5/1P6/P3q3/6PP/4R2K w - - 0 29","m":"e1e3 d8d1 e3e1 d1e1","r":426,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"O7tVz","f":"3r2k1/pp3p1p/3rp1p1/2p5/3B4/1PP1RQ2/P4PPP/1b4K1 w - - 0 22","m":"d4c5 d6d1 f3d1 d8d1 e3e1 d1e1","r":474,"t":"backRankMate endgame long mate mateIn3"},{"i":"O87fu","f":"3r3k/6pp/4Q3/4q3/5p2/8/5PPP/6K1 w - - 0 36","m":"e6e5 d8d1 e5e1 d1e1","r":415,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"O8NLU","f":"3r2k1/p4ppp/1p1Q4/8/3PpN2/P3PqP1/5P1P/2R3K1 b - - 0 25","m":"d8d6 c1c8 d6d8 c8d8","r":483,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O8NlJ","f":"4r1k1/pQ4pp/2p5/3p4/8/2P2P2/4r1PP/q4R1K w - - 0 28","m":"f1a1 e2e1 a1e1 e8e1","r":514,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"O91Ys","f":"1Nr1Q1k1/p4ppp/8/P7/4R3/1p2P2P/2q2PP1/4R1K1 b - - 3 33","m":"c8e8 e4e8","r":441,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"O97kN","f":"2r1r2k/p5pp/8/1p6/1Pn2B2/PQ4P1/5qPP/5R1K w - - 0 27","m":"f1f2 e8e1 f2f1 e1f1","r":463,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O9V3b","f":"r5k1/p1R2ppp/1p2b3/8/5B2/P3P3/1P1r1PPP/2R3K1 w - - 2 21","m":"c1c2 d2d1","r":447,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"O9Ylq","f":"3r3k/3Q2pp/5p2/4b3/1p2N3/8/PP4PP/2R3K1 b - - 0 30","m":"d8d7 c1c8 d7d8 c8d8","r":522,"t":"backRankMate endgame mate mateIn2 short"},{"i":"O9wyP","f":"3r2k1/2R2ppp/1p6/1N2p3/4P3/P4P2/1P2n1PP/3q1Q1K w - - 9 34","m":"f1d1 d8d1","r":415,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"O9y6T","f":"7k/3n1rpp/p7/5r2/8/2N5/PPP3PP/3RRq1K w - - 2 26","m":"e1f1 f5f1 d1f1 f7f1","r":402,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OA2xh","f":"1q4k1/Q1p2ppp/1r6/4p3/1P3Pn1/2P3P1/P4PBP/3RR1K1 b - - 0 22","m":"b8a7 d1d8","r":419,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OAEh9","f":"r7/3k1pp1/8/1pB4p/3PN3/8/5PPP/1R4K1 w - - 0 32","m":"b1b5 a8a1 b5b1 a1b1","r":405,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OAemY","f":"1r4k1/5ppp/2R5/1p2p3/8/1Q1rP1P1/3P1PKP/2R5 b - - 0 26","m":"d3b3 c6c8 b8c8 c1c8","r":499,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OAhoq","f":"r5k1/pp4pp/4Q3/4R3/8/8/Pq3PPK/8 b - - 0 25","m":"g8h8 e6e8 a8e8 e5e8","r":465,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"OB0R1","f":"r5k1/pp1b1ppp/2p3q1/3p4/3P4/1BP1Q2P/PP3PP1/4R1K1 b - - 0 20","m":"a8e8 e3e8 d7e8 e1e8","r":512,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OBVE4","f":"2kr1b1r/ppp3p1/4b3/4q3/B6p/2P5/P1P2PPP/R1B1R1K1 w - - 0 17","m":"e1e5 d8d1 e5e1 d1e1","r":433,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OCHlI","f":"8/1p2kpp1/4N3/p3P3/8/2Pr4/PP3qPP/5R1K w - - 0 28","m":"f1f2 d3d1 f2f1 d1f1","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OCIx9","f":"1Q3qk1/3r1r1p/8/pp5R/6P1/3P4/PPP5/1K5R w - - 3 35","m":"b8b5 f7f1 h1f1 f8f1","r":592,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OCQTu","f":"3r2k1/p7/1n2p1pp/1pp5/6PP/1Q2qP2/PP6/K7 w - - 0 31","m":"b3e3 d8d1 e3c1 d1c1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OCV8Q","f":"8/pk1rn3/1p3p2/2p3p1/3P3p/P1Pr3P/P1R2PPB/1R4K1 w - - 0 23","m":"d4c5 d3d1 b1d1 d7d1","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OD5T2","f":"8/3r3p/1kp3b1/8/4PQp1/2Nq4/PP3PPP/4R1K1 w - - 4 36","m":"e1d1 d3d1 c3d1 d7d1","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ODApd","f":"4r1k1/p1p2pbp/2p3p1/3n1b2/8/1B6/PPPN1PPP/R1B3K1 w - - 0 15","m":"d2c4 e8e1","r":477,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ODDqs","f":"r5k1/ppb1rpp1/7p/3B1R2/3P4/6P1/P5PP/1R5K w - - 1 27","m":"b1b7 e7e1 f5f1 e1f1","r":425,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ODFb2","f":"q4rk1/8/2pR1p2/5p1p/2NP4/2P5/1P3PPP/3Q2K1 w - - 0 23","m":"d1h5 a8a1 h5d1 a1d1","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ODdiz","f":"3r2k1/5ppp/5bb1/Q7/3P2P1/P6P/1q3P2/2R2RK1 b - - 2 25","m":"f6d4 a5d8","r":580,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"ODzyb","f":"3r2k1/1q3ppp/p1n2n2/1pB5/8/4QN1P/PP3PP1/4R1K1 b - - 2 25","m":"f6d5 e3e8 d8e8 e1e8","r":540,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"OEHKJ","f":"Q2B1rk1/5p1p/3Qb1p1/8/4p3/8/5PPP/2q3K1 w - - 0 31","m":"d6d1 c1d1","r":433,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"OEhIm","f":"kB6/P5b1/1q1P3p/6p1/4r3/8/5PPP/1R4K1 w - - 0 47","m":"b1b6 e4e1","r":408,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OEqFr","f":"3r3k/3R2pp/1q3p2/2p1p3/8/2NPP1P1/1Q3P1P/6K1 b - - 0 35","m":"b6b2 d7d8","r":468,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"OFL8E","f":"1r4k1/4qppp/4p3/2Rp4/P2Pb3/4P2P/5PP1/2R2BK1 b - - 6 32","m":"e7a7 c5c8 b8c8 c1c8","r":572,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OFhxF","f":"r1Q3k1/5ppp/8/3q4/8/7P/PP2RPP1/4R1K1 b - - 0 30","m":"a8c8 e2e8 c8e8 e1e8","r":421,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"OFk4X","f":"4r3/p1pr2kp/1p4p1/1Pb5/P4R2/5P2/6PP/4R2K w - - 1 32","m":"e1e8 d7d1 e8e1 d1e1","r":515,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OFxCl","f":"2rR2k1/5ppp/RQ6/2r5/P7/8/KPP5/6q1 b - - 7 30","m":"c8d8 b6d8","r":493,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OG3ty","f":"2k1r3/7p/q1n1r1p1/1p1Q4/2p2B2/8/5PPP/RR4K1 w - - 1 36","m":"a1a6 e6e1 b1e1 e8e1","r":481,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OGRPu","f":"3r2kr/pp4pp/4R3/5Q2/8/6B1/P4PPP/6K1 w - - 1 27","m":"e6e7 d8d1 e7e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OGjgK","f":"5rk1/4Rppp/1qp5/1n1p1b2/1P1P4/r1P1RN1P/NK4P1/3Q4 b - - 2 24","m":"f8a8 e7e8 a8e8 e3e8","r":413,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OGyJP","f":"5k2/5ppp/8/p3Pp2/3P4/1r6/2p2PPP/2R3K1 w - - 0 36","m":"c1c2 b3b1 c2c1 b1c1","r":437,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OHAUB","f":"2r3k1/5ppp/2Q1p3/4P3/8/7P/5PP1/1R4K1 b - - 0 38","m":"c8c6 b1b8 c6c8 b8c8","r":426,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OHBO2","f":"rn4k1/ppp2ppp/8/7b/4R3/2P2N1P/PPP2PPK/R1Br4 b - - 2 14","m":"h5f3 e4e8","r":558,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"OHEJf","f":"r5k1/pr3ppp/2R1b3/3p4/8/1P1P4/P5PP/4RK2 b - - 0 22","m":"a8c8 c6c8 e6c8 e1e8","r":575,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OHPQv","f":"1R6/6bk/p2N2pp/3PP3/3r4/6B1/6PP/7K w - - 1 34","m":"e5e6 d4d1 g3e1 d1e1","r":405,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OHUms","f":"r2r2k1/1p3p1p/p3b1p1/8/P7/2b5/1P2RPPP/R1B3K1 w - - 0 20","m":"b2c3 d8d1 e2e1 d1e1","r":401,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OHfqT","f":"1k1r4/6p1/1p3n1p/p1p1n3/7Q/2R1P3/1P3PPP/R2q2K1 w - - 4 37","m":"a1d1 d8d1","r":489,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"OHofE","f":"8/R3N1pk/4bp1p/8/4P3/1r1r4/5PPP/3R2K1 w - - 0 27","m":"d1d3 b3b1 d3d1 b1d1","r":596,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OIHs2","f":"3r2k1/rp3ppp/8/3R4/8/5P2/PP4PP/2R3K1 b - - 0 22","m":"d8d5 c1c8 d5d8 c8d8","r":451,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OJ2oU","f":"8/3p1pkp/4p1p1/4P3/3p1P2/4rB2/6PP/3R3K w - - 0 34","m":"d1d4 e3e1","r":437,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OJKQQ","f":"r2n3k/1pQ1q1pp/1p6/3B4/3P4/2P5/PP4PP/5RK1 b - - 3 23","m":"e7c7 f1f8","r":521,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OK30b","f":"1r5k/p5pp/4P3/3P1pq1/4np2/PB6/2R3PP/3R3K b - - 2 38","m":"b8b3 c2c8 g5d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OKSPZ","f":"5bk1/3N1p1p/4p1p1/4P3/p3q3/6B1/P1r2PPP/4R1K1 w - - 0 32","m":"e1e4 c2c1 e4e1 c1e1","r":437,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OKqRN","f":"r1b3k1/1p2rppp/pn3n2/8/4P1P1/8/PPP2P1P/2KR1B1R b - - 0 16","m":"f6e4 d1d8 e7e8 d8e8","r":443,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OL1bM","f":"r4rk1/pp3npp/2p3q1/3p4/1P5B/P2bQP1P/B5P1/2R1R2K b - - 4 28","m":"f8e8 e3e8 a8e8 e1e8","r":599,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OL92j","f":"2rQ2k1/p4ppp/1p6/P7/8/P4qP1/5P1P/3R2K1 b - - 1 26","m":"c8d8 d1d8","r":414,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"OLAqy","f":"r5k1/4pp2/3p2pp/3P4/1p2P3/P3RP2/2P3PP/7K w - - 0 31","m":"a3b4 a8a1 e3e1 a1e1","r":571,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OLDhQ","f":"3rr1k1/p4pp1/1p5p/8/5P2/8/PP1P1qPP/R1B2R1K w - - 0 28","m":"f1f2 e8e1 f2f1 e1f1","r":478,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OLKJZ","f":"r4n1k/2N2ppp/1p3n2/p4q2/5P2/6R1/PB2Q1PP/1R5K w - - 2 27","m":"c7a8 f5b1 b2c1 b1c1 e2d1 c1d1","r":543,"t":"backRankMate hangingPiece long mate mateIn3 middlegame"},{"i":"OLQn8","f":"6k1/3qBpbp/6p1/8/8/1P6/r4PPP/3R2K1 w - - 0 25","m":"d1d7 a2a1 d7d1 a1d1","r":515,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OLSoZ","f":"4rQ1k/ppp3pp/2nqr3/8/5R2/2N5/PPP3PP/5R1K b - - 10 24","m":"d6f8 f4f8 e8f8 f1f8","r":438,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OLT4A","f":"1kn1r3/8/qP1p3p/3Pr1p1/3Q1p2/8/5PPP/RR4K1 w - - 0 32","m":"a1a6 e5e1 b1e1 e8e1","r":493,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OLT6H","f":"7k/p2n2pp/1p6/8/4b3/8/PP1K1PPP/2R5 b - - 0 26","m":"e4g2 c1c8 d7f8 c8f8","r":447,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OLZQk","f":"8/3k1ppp/p1r5/3p4/1P6/P7/2R2PPP/6K1 w - - 1 34","m":"c2b2 c6c1","r":506,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"OLamd","f":"5r2/5pkp/1p2r1p1/p7/2P5/1P5R/P5PP/5R1K w - - 0 33","m":"f1f3 e6e1 f3f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OMZNc","f":"8/p4pkp/6p1/8/2P5/P3P3/r4PPP/2R3K1 w - - 2 35","m":"c1c3 a2a1 c3c1 a1c1","r":434,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OMpS4","f":"4r2k/3R2pp/8/p1p5/1p6/4Q2P/P1P3P1/6K1 b - - 0 44","m":"e8e3 d7d8 e3e8 d8e8","r":509,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ONCQt","f":"3r2k1/p4ppp/1p2p3/8/8/1P4P1/P3PP1P/2R2K2 b - - 0 24","m":"d8d7 c1c8 d7d8 c8d8","r":424,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ONY25","f":"4Q1k1/p1p2ppp/1n4q1/8/b4P1P/1PP3P1/P2r1P2/R1K1R3 b - - 1 26","m":"a4e8 e1e8","r":482,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ONrmH","f":"3r1k2/5pbp/p2N2p1/1b6/1N6/1P2R3/P4PPP/6K1 w - - 1 33","m":"d6b5 d8d1 e3e1 d1e1","r":469,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OO2cU","f":"3r4/1k1r4/1p4R1/p1p1Q3/8/2P5/PP6/K3R3 w - - 9 47","m":"g6e6 d7d1 e1d1 d8d1","r":493,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"OP0nk","f":"3r2k1/Q4pp1/2p4p/6n1/8/P3P3/2P2PPP/1R1q2K1 w - - 1 26","m":"b1d1 d8d1","r":430,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OPHzD","f":"rn1q3k/pbpp2pp/1p6/4P1N1/3P1Rn1/2P5/P1P3PP/R2Q2K1 b - - 0 13","m":"d8g5 f4f8","r":498,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"OPPOK","f":"8/pp6/1kp2p1R/5p2/8/5B2/PPr2PPP/6K1 w - - 0 27","m":"h6f6 c2c1 f3d1 c1d1","r":546,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OPefM","f":"5r1n/1p5R/p2p4/3Pk1p1/8/2N5/PPP5/1K6 w - - 6 29","m":"h7b7 f8f1 c3d1 f1d1","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OPfSS","f":"r2Q2k1/p1p2ppp/p7/4P3/1P4q1/2P3n1/P4P2/3RR1K1 b - - 1 28","m":"a8d8 d1d8","r":458,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OQXqZ","f":"r2Q1k1r/1p2ppbp/p1n5/3QP2n/1q3p2/2N1BP2/PPP4P/2KR1B1R b - - 0 16","m":"a8d8 d5d8 c6d8 d1d8","r":547,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OQadN","f":"3r3k/2p2p2/ppPr1N1p/8/8/6R1/PP3PPP/R5K1 w - - 0 24","m":"f6g4 d6d1 a1d1 d8d1","r":492,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OQfEV","f":"6k1/3q1pp1/4b2p/4Pn2/1Qp5/2Pr1B1P/5PPB/R5K1 w - - 4 33","m":"f3e4 d3d1 a1d1 d7d1","r":529,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OR56p","f":"4R3/6k1/p6p/1p4p1/2pr4/P7/B1P2PPP/6K1 w - - 1 31","m":"e8e6 d4d1 e6e1 d1e1","r":461,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ORCiS","f":"r5k1/pp3ppp/2p5/3pRP2/3P3r/2P5/PP3P1P/4R1K1 b - - 1 22","m":"h4f4 e5e8 a8e8 e1e8","r":446,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ORG3s","f":"1r6/p2bRp1p/k1q5/N1Pp4/5Q2/8/P1P2PPP/6K1 w - - 5 26","m":"a5c6 b8b1 f4c1 b1c1 e7e1 c1e1","r":550,"t":"backRankMate endgame long mate mateIn3"},{"i":"ORiVP","f":"3rk3/p1pr1pp1/2p4p/7P/2N1Pb2/5P2/PPP3P1/2KR3R w - - 1 23","m":"c1b1 d7d1 h1d1 d8d1","r":436,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OS9Iu","f":"Q4rk1/3R1ppp/4p3/pp3q2/8/2P5/PP3PPP/3R2K1 b - - 0 24","m":"f8a8 d7d8 a8d8 d1d8","r":425,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"OSGCR","f":"5r1k/6pp/p2Q4/8/5r2/2Pn4/PP4PP/R4q1K w - - 1 27","m":"a1f1 f4f1","r":463,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OSR60","f":"8/p3r1b1/1k1n4/2q5/5Q2/8/P4PPP/2R3K1 w - - 2 33","m":"c1c5 e7e1","r":579,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OSZq3","f":"2r2rk1/p1q2ppp/8/7R/3p3Q/5P2/PP3PPP/R5K1 w - - 0 24","m":"h5h7 c7c1 a1c1 c8c1","r":556,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"OSvTo","f":"2r3k1/3n1ppp/p3p3/1p1p4/1P1P4/P4Q2/5PPP/R1q3K1 w - - 0 24","m":"a1c1 c8c1 f3d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OSxma","f":"2r2k2/p1r2ppp/1p2p1n1/7P/4P3/P4NP1/1P1R1P2/3R2K1 b - - 0 31","m":"g6e7 d2d8 c8d8 d1d8","r":529,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"OSyCv","f":"4r1k1/1p3ppp/8/8/8/3PQ3/7P/R6K b - - 0 34","m":"e8e3 a1a8 e3e8 a8e8","r":532,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OT4X3","f":"3R1rk1/1p3ppp/2p5/p7/8/2P3P1/qP2QP1P/4R1K1 b - - 0 21","m":"f8d8 e2e8 d8e8 e1e8","r":521,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"OTaGs","f":"4r2k/ppp5/7p/5p2/8/3P4/PP3bPP/5R1K w - - 0 27","m":"f1f2 e8e1 f2f1 e1f1","r":538,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OTkpi","f":"5rk1/1p4pp/p1ppn3/8/P1N1P3/R7/1PP3PP/3Q1q1K w - - 8 24","m":"d1f1 f8f1","r":537,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OU0Ab","f":"r1R3k1/5ppp/p3p3/1p1p1b2/1P6/Pq1P2P1/4PPBP/2Q3K1 b - - 8 25","m":"a8c8 c1c8","r":440,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OUSKB","f":"r3r1k1/p1p1qp1p/1p4p1/3P4/2nB4/2P3RQ/P4PPP/R5K1 w - - 2 20","m":"h3h6 e7e1 a1e1 e8e1","r":575,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"OUXPF","f":"1R6/5Qpk/5n1p/8/3P4/q3PB2/P4PPP/6K1 w - - 4 25","m":"b8b7 a3c1 f3d1 c1d1","r":513,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OVaWG","f":"3rQ1k1/2p2ppp/7r/5P2/3P2Pb/p4R1P/qP2R3/2B3K1 b - - 3 28","m":"d8e8 e2e8","r":514,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"OVfkr","f":"8/2r1ppkp/3p2p1/3P4/5P1P/1B2q3/PP6/K3R3 w - - 0 33","m":"e1e3 c7c1","r":567,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OVjaB","f":"4r2k/p5Np/1p4p1/2BQ1n2/8/2q5/5PPP/2R3K1 w - - 0 26","m":"g7e8 c3c1 d5d1 c1d1","r":579,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"OVl2s","f":"5r2/4p2k/p1ppp1pp/4N3/Pr2P3/1PQ3R1/6PP/3R1q1K w - - 2 28","m":"d1f1 f8f1","r":501,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"OWgoW","f":"4r2k/p5pp/1p6/8/8/6N1/3R2PP/3Rq2K w - - 5 42","m":"d1e1 e8e1 g3f1 e1f1","r":454,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OXHlC","f":"r1b4k/pp4pp/3p3r/2p5/4P3/P2P2P1/BPP1qRK1/3R4 b - - 1 26","m":"e2d1 f2f8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OXUp3","f":"3Q2k1/5ppp/pp2pb2/1qp5/2N5/1PP2N2/P4PPP/3R2K1 b - - 0 23","m":"f6d8 d1d8 b5e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OXi10","f":"4r2k/pp1b2pp/2p1p3/3pP1Bq/1P2p3/2P1P2B/P4QPP/5RK1 b - - 0 29","m":"h5g5 f2f8 e8f8 f1f8","r":476,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"OXjec","f":"5rk1/5r1p/p5pQ/4q3/5P2/8/6PP/1R3R1K w - - 0 38","m":"f4e5 f7f1 b1f1 f8f1","r":480,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"OXshZ","f":"2kr4/Qpp2ppp/8/8/2P3b1/8/P3qPPP/4R1K1 w - - 0 21","m":"e1e2 d8d1 e2e1 d1e1","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OY7se","f":"r1r3k1/2Q2ppp/2p2b2/2Pp4/1P1B2b1/2P5/4RPPP/4R1K1 b - - 0 25","m":"c8c7 e2e8 a8e8 e1e8","r":443,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"OYCoL","f":"3r1rk1/p1R2p1p/2RN1Qpn/1p2P3/3P4/1q6/1P3PPP/6K1 w - - 8 26","m":"f6f4 b3d1","r":414,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"OYLgs","f":"4r1k1/1p4p1/p7/7p/1P2r1p1/P1PR3N/6PP/3R2K1 w - - 0 30","m":"h3f2 e4e1 d1e1 e8e1","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OYQfS","f":"6k1/5ppp/p4n2/1p6/6P1/KP1RbP2/2r1B3/8 b - - 7 31","m":"c2e2 d3d8 f6e8 d8e8","r":480,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OYatd","f":"r2r2k1/p4ppp/1p6/3b4/8/5N2/P2R1PPP/3R2K1 b - - 1 22","m":"d5f3 d2d8 a8d8 d1d8","r":598,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OYnOn","f":"1Qrb2k1/5ppp/4R3/3p4/8/P6P/6P1/7K b - - 0 28","m":"c8b8 e6e8","r":533,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OYtdv","f":"2rQ2kr/pb3ppp/2p2n2/8/4P3/2P1qP2/P3N1PP/3RK2R b K - 8 21","m":"c8d8 d1d8 f6e8 d8e8","r":436,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OZMEu","f":"1k5r/ppp3b1/3p1rqp/8/1PnP4/3Q2BP/P3RPP1/4R1K1 b - - 1 26","m":"g6d3 e2e8 h8e8 e1e8","r":563,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OZnqP","f":"4r1k1/pp3pp1/8/1b6/3pq3/3N4/PPQ2PPP/3R2K1 w - - 4 30","m":"d1e1 e4e1 d3e1 e8e1","r":573,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Oa5om","f":"r5k1/1b2q2p/2p1R1p1/1p1p2N1/1P1P4/8/5PPQ/6K1 w - - 14 34","m":"e6e7 a8a1 e7e1 a1e1","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OaHY5","f":"5rk1/p2r1p1p/1pQ1pqp1/2p5/2P5/1P6/P5PP/5R1K w - - 0 25","m":"f1f6 d7d1 f6f1 d1f1","r":443,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Oaj9E","f":"4k3/6R1/3p4/1P1r3p/2p5/2P1B3/5PPP/6K1 w - - 0 33","m":"b5b6 d5d1","r":471,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Oarfy","f":"6k1/pQr2ppp/1p3b2/4p3/2R1n3/BP2P2P/P4PP1/6K1 b - - 0 26","m":"c7b7 c4c8 f6d8 c8d8","r":414,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OaxMr","f":"6k1/3R1p2/7p/rp4p1/8/4PN2/5PPP/6K1 w - - 0 31","m":"f3e5 a5a1 d7d1 a1d1","r":454,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ObH6o","f":"1r4k1/p1p2pp1/3p3p/8/q1P5/2N1R1Q1/2P2PPP/6K1 w - - 0 26","m":"c3a4 b8b1 e3e1 b1e1","r":447,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ObHWC","f":"1k5r/ppp2ppp/5n2/2b5/8/P3P1P1/1P1Q3P/2KR1B1q b - - 2 19","m":"h1f3 d2d8 h8d8 d1d8","r":571,"t":"backRankMate master mate mateIn2 middlegame sacrifice short"},{"i":"Oc72s","f":"Q2q3k/6pp/8/4p3/4p3/4P1P1/5P1P/R5K1 b - - 0 37","m":"d8a8 a1a8","r":448,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Od7yW","f":"r4r1k/1p4pB/p1p5/8/N5Q1/PP2b3/2P3PP/3R1q1K w - - 0 26","m":"d1f1 f8f1","r":522,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"OdBzE","f":"r5k1/1p4pp/1p5r/3B1R2/3p4/4b2P/P1p3PK/5R2 b - - 1 35","m":"g8h8 f5f8 a8f8 f1f8","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OdFdW","f":"3r3k/p5p1/1p1p3p/3QB3/8/P3P3/1Pq2PPP/3R2K1 w - - 1 25","m":"d5f7 c2d1","r":516,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"Oda1G","f":"r5k1/6pp/4p3/3pPpQ1/prnP4/4R3/R1P2PPP/6K1 w - - 0 28","m":"e3g3 b4b1 g5c1 b1c1","r":425,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Of74S","f":"1r3Q1k/6pp/1q2p3/p7/4P3/1PN5/P1P5/1K3R2 b - - 2 30","m":"b8f8 f1f8","r":556,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Of9BY","f":"2Q4k/pp1b2pp/3r4/7P/3n2P1/P3P3/B7/5RK1 b - - 0 24","m":"d7c8 f1f8","r":447,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OfTAW","f":"1k1Q1rr1/ppp4p/1b4q1/3R3p/8/2P2PN1/PP3PPP/3R2K1 b - - 1 22","m":"f8d8 d5d8 g8d8 d1d8","r":590,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OhZY8","f":"3r2k1/Q4p1p/3q2p1/P4p2/8/8/5PPP/r3R1K1 w - - 0 31","m":"e1a1 d6d1 a1d1 d8d1","r":539,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"OhpXx","f":"4Rnk1/5ppp/8/2NP4/2P5/8/r4PPP/6K1 w - - 2 32","m":"c5d7 a2a1 e8e1 a1e1","r":490,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Ohr2O","f":"5rk1/1N2n2p/6p1/3p4/3b4/3P4/PP4PP/R1B3K1 w - - 3 22","m":"g1h1 f8f1","r":599,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Oi0sy","f":"r2R2k1/5ppp/2p1pq2/2P5/1P5P/3Q2PB/r4P2/3R2K1 b - - 11 35","m":"a8d8 d3d8 f6d8 d1d8","r":467,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Oi6i7","f":"3nr3/1p1q2kp/1R1pr3/6p1/3P1p2/PQ4BP/1P3PP1/3R2K1 w - - 0 30","m":"g3h2 e6e1 d1e1 e8e1","r":561,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OiQqw","f":"3q2k1/5ppp/3p4/p2Pp3/8/P4P2/P2B1P1P/2R3K1 b - - 0 30","m":"d8f6 c1c8 f6d8 c8d8","r":595,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OjI7z","f":"r2r2k1/2nq1ppp/4pb2/p1p5/PpPPB3/1P2B1Q1/5PPP/R2R2K1 w - - 0 25","m":"d4c5 d7d1 a1d1 d8d1","r":553,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OjY8x","f":"2rQ3k/1q3ppp/p7/1pB1b3/8/P7/1PP2PPP/2KR3R b - - 1 21","m":"c8d8 d1d8","r":494,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OjeiX","f":"6k1/3rPppp/1b6/8/4P3/R5P1/6KP/8 b - - 2 36","m":"d7e7 a3a8 b6d8 a8d8 e7e8 d8e8","r":530,"t":"backRankMate endgame long mate mateIn3"},{"i":"Ok6sz","f":"6k1/4rpp1/2P4p/1PbB1Q2/q1Pp4/8/5PPP/3R2K1 w - - 3 43","m":"d5e4 a4d1","r":579,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"OkI4L","f":"r7/p1p2k1p/2p1bb2/4Br2/8/2N3Q1/PPP3PP/3R1q1K w - - 0 21","m":"d1f1 f5f1","r":435,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"OkMtH","f":"r3rk2/1pN2pbQ/p2p2p1/8/6P1/2P5/PP1p1R2/K3qR2 w - - 2 29","m":"f1e1 e8e1","r":572,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"OkpFR","f":"rn5k/ppQ1q1pp/8/4P3/3P4/2P4P/P5P1/5RK1 b - - 0 21","m":"e7c7 f1f8","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Ol7z5","f":"6k1/1R3ppp/4p3/p2pP3/2r2PP1/b1P5/7P/2B1K3 b - - 1 28","m":"a3c1 b7b8 c4c8 b8c8","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OlgVi","f":"5rk1/5pp1/p6p/1p1r4/6R1/2P4Q/PP3qPP/5R1K w - - 4 29","m":"f1f2 d5d1 f2f1 d1f1","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"OlwNX","f":"r4Q1k/p5pp/2p3q1/8/P3p3/4B1P1/1b2P1KP/4RR2 b - - 0 26","m":"a8f8 f1f8","r":459,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OmgjK","f":"4B1k1/1pr2pb1/3p2pp/p2P4/4p3/8/PP3PPP/4R1K1 w - - 0 23","m":"e1e4 c7c1 e4e1 c1e1","r":595,"t":"backRankMate endgame mate mateIn2 short"},{"i":"On7ad","f":"Q4rk1/p1p2ppp/7n/8/2P5/3R2PB/PP3q1P/2KR4 b - - 0 18","m":"f8a8 d3d8 a8d8 d1d8","r":417,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OnGzQ","f":"5k2/5ppp/4p1n1/5r2/1P1R4/2N1K3/5P1P/8 b - - 0 35","m":"g6e7 d4d8","r":419,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OnLZg","f":"2r3k1/p4p2/r5pp/3pB1b1/1pP5/1P4R1/1P3PPP/3R2K1 w - - 0 28","m":"d1d5 a6a1 d5d1 a1d1","r":553,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OnMg9","f":"3r3k/2q2rpp/p3Qp2/8/1P6/P7/5PPP/2R3K1 w - - 0 28","m":"c1c7 d8d1 e6e1 d1e1","r":493,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"OnoAR","f":"N1k5/pp1b1r1p/6pQ/4n1B1/4P3/3P4/PP4PP/2q4K w - - 0 25","m":"g5c1 f7f1","r":472,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OnriM","f":"2rb2k1/p4p2/1p4pp/4P3/8/P4R2/1P3PPP/1B4K1 w - - 0 28","m":"f3d3 c8c1 d3d1 c1d1","r":446,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"Onyja","f":"3r1b1r/pkp1p1p1/1pn4p/8/4Np2/2P1RQ2/PP3PPP/R1Bq2K1 w - - 2 18","m":"f3d1 d8d1 e3e1 d1e1","r":590,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Oo5Ul","f":"6k1/5ppp/4b3/4p3/1P1b2PP/4R3/r7/3RKBr1 b - - 10 35","m":"d4e3 d1d8","r":474,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OoqDj","f":"8/1rk5/R2pb3/7p/2PB4/8/P4PPP/4R1K1 w - - 0 35","m":"e1e6 b7b1 e6e1 b1e1","r":460,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OorT1","f":"r1b3k1/1pb2ppp/p3pn2/P7/5B2/1N4P1/1PP2PBP/3R2K1 b - - 2 19","m":"c7f4 d1d8 f6e8 d8e8","r":574,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OozEp","f":"1Q6/P4p1p/4pkp1/8/2r5/8/R2R1PPP/6K1 w - - 1 44","m":"a7a8q c4c1 d2d1 c1d1","r":403,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OpJXh","f":"6k1/5ppp/1rP5/1Pr1p3/8/7P/R2K1PP1/8 b - - 4 38","m":"b6b5 a2a8 b5b8 a8b8","r":441,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OpKRY","f":"6k1/4rppp/R1p5/1p1p4/3P4/2P5/2P2PPP/5K2 b - - 1 22","m":"e7c7 a6a8 c7c8 a8c8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OpmBt","f":"4r1k1/p1p3pp/2p2p2/7b/P7/BPPPqP2/6PP/R2Q3K w - - 3 23","m":"d1e1 e3e1 a1e1 e8e1","r":433,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Opr5r","f":"2r3k1/1p4pp/p3p3/2BpP3/8/1P6/3R1PPP/6K1 w - - 1 26","m":"c5d6 c8c1 d2d1 c1d1","r":477,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Oq2VJ","f":"3r4/5pkp/5Np1/p1n3P1/1p5P/5P2/PPP1r3/1K1R4 w - - 0 29","m":"d1d8 e2e1 d8d1 e1d1","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OqECK","f":"1rb3k1/2q2ppp/p1P1pn2/8/5Q2/2N2N2/PP3PPP/3R2K1 b - - 5 21","m":"c7f4 d1d8 f6e8 d8e8","r":464,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Oqef2","f":"3R4/Q4pkp/6p1/8/Pb6/1P6/2P2PPP/q5K1 w - - 1 23","m":"d8d1 a1d1","r":524,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"Or1HS","f":"1Q6/1br2kpp/p2b1n2/5P2/1p2p3/6N1/PP4PP/3R3K w - - 4 34","m":"d1d6 c7c1 d6d1 c1d1 g3f1 d1f1","r":553,"t":"backRankMate endgame long mate mateIn3"},{"i":"Or7QD","f":"rr5k/pp3Qpp/8/8/7q/8/P4RP1/6K1 b - - 0 30","m":"b8f8 f7f8 a8f8 f2f8","r":472,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OrfaJ","f":"5r1k/pp4pp/1qp5/3p1Q2/8/2P5/PPP2PPP/4RRK1 b - - 0 19","m":"f8f5 e1e8 f5f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"OrvdQ","f":"8/pp3k2/4N2B/2p2r2/3p4/6R1/6PP/4Rq1K w - - 7 49","m":"e1f1 f5f1","r":414,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OsOMi","f":"1k1r4/1p3p2/p1p4p/3NR1p1/2P5/8/P4PPP/6K1 w - - 0 25","m":"d5f6 d8d1 e5e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OsVr2","f":"5N1k/5p1p/pp4p1/2p5/P1Pr4/1P6/4bPPP/4R1K1 w - - 0 31","m":"e1e2 d4d1 e2e1 d1e1","r":536,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Osvpy","f":"6k1/pb3ppp/5q2/8/1p1PB3/1P2P1P1/P1Q2P1P/2B1b1K1 b - - 0 25","m":"b7e4 c2c8 f6d8 c8d8","r":448,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OtKTj","f":"8/1p2r1p1/5k1p/8/3R1r2/7Q/B5PP/3R1q1K w - - 2 37","m":"d1f1 f4f1","r":520,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OtZap","f":"1k3b1r/ppp3pp/8/8/5q2/6P1/1PP2P1P/1K1R4 b - - 0 18","m":"f4f2 d1d8","r":431,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Otoji","f":"4r1k1/pp2qppp/2p2p2/8/2P2B2/1P3n2/P4PPP/R2Q2K1 w - - 0 19","m":"d1f3 e7e1 a1e1 e8e1","r":503,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Ouig1","f":"k3Q3/pp4pp/3B1n2/3p4/P2P4/1P5P/3q1PP1/2R3K1 b - - 0 31","m":"f6e8 c1c8","r":533,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OuoUH","f":"2r3k1/pb5p/1p3R1Q/8/3p2P1/8/PP5P/K1q5 w - - 11 34","m":"h6c1 c8c1","r":548,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Ow7R5","f":"3r3k/p2Q2pp/5p2/4p3/P3P3/7P/6P1/2R4K b - - 0 36","m":"d8d7 c1c8 d7d8 c8d8","r":416,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"OwUdI","f":"4r1k1/1p4pp/8/3p4/1P6/3q4/6PP/5Q1K w - - 0 28","m":"f1d3 e8e1 d3f1 e1f1","r":534,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"OwwIE","f":"6k1/5ppp/4b3/8/8/1P1r1P2/PPK3PP/4R3 b - - 1 26","m":"e6f5 e1e8","r":528,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OxWDx","f":"6k1/p2n1ppp/8/1p6/7P/1N6/P1r2PP1/K2R4 b - - 3 27","m":"d7f6 d1d8 f6e8 d8e8","r":457,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Oxl8u","f":"3r4/p5pp/8/2n2p1k/8/6Q1/PP3PPP/4R1K1 w - - 2 31","m":"e1e5 d8d1 e5e1 d1e1","r":460,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Oxl9D","f":"4r1k1/pp3ppp/4q3/8/3R4/8/PPQn1PPP/6K1 w - - 0 23","m":"c2d2 e6e1 d2e1 e8e1","r":541,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Oy5bc","f":"3r3k/p5np/3Q4/6p1/2P5/1P4PP/P4RK1/8 b - - 0 31","m":"d8d6 f2f8","r":455,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"OyIis","f":"r7/1k3ppp/3Rb3/1Nn5/1P6/8/5PPP/6K1 w - - 0 32","m":"b4c5 a8a1 d6d1 a1d1","r":539,"t":"backRankMate endgame mate mateIn2 short"},{"i":"OyLLI","f":"5rk1/pppb3p/2np2pQ/4p1P1/3P4/2PB4/PPN2qPP/R6K w - - 0 20","m":"a1f1 f2f1 d3f1 f8f1","r":591,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"OzdIr","f":"5r1k/ppp3pp/1nnp4/5QB1/3P4/4R3/PP3P2/3R2K1 b - - 0 24","m":"f8f5 e3e8 f5f8 e8f8","r":563,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"P0so4","f":"4r3/6kp/Q2p1p2/1p1R1p2/8/2n5/P3r1PP/2R4K w - - 1 33","m":"d5d6 e2e1 c1e1 e8e1","r":516,"t":"backRankMate endgame mate mateIn2 short"},{"i":"P1Acw","f":"2r3k1/1b3ppp/8/1P6/p2R4/1r5P/5PP1/3R2K1 b - - 3 30","m":"a4a3 d4d8 c8d8 d1d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"P1NCR","f":"6k1/5ppp/4p3/p1N5/3P4/2q5/1r3PPP/2R3K1 w - - 0 41","m":"c1c3 b2b1 c3c1 b1c1","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"P33PA","f":"3r3k/6pp/8/1p2p3/p2RPp2/P4P2/1P4PP/2R3K1 b - - 0 30","m":"d8d4 c1c8 d4d8 c8d8","r":526,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"P35FF","f":"8/p5k1/4rp2/4r1p1/3p4/8/P4PPP/2RR2K1 w - - 0 41","m":"d1d4 e5e1 c1e1 e6e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"P3Tvj","f":"3r3r/pbp2ppp/2p2k2/4N3/4n3/8/PPP2PPP/RN2R1K1 w - - 2 13","m":"e1e4 d8d1 e4e1 d1e1","r":453,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"P3jof","f":"4r2k/p1p1P1pp/8/8/8/P7/8/1R4K1 b - - 0 39","m":"e8e7 b1b8 e7e8 b8e8","r":482,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"P4abH","f":"4r3/kp6/p7/8/3q4/8/PPP5/1K1R4 w - - 0 43","m":"d1d4 e8e1 d4d1 e1d1","r":502,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"P4p8s","f":"2r5/P7/7p/3ppkp1/1B6/4P3/R4PPP/6K1 w - - 0 40","m":"a7a8q c8c1 b4e1 c1e1","r":597,"t":"backRankMate endgame mate mateIn2 short"},{"i":"P4pQX","f":"4k3/7R/2rp3p/p5p1/Pp6/1B3N2/1P3PPP/6K1 w - - 0 33","m":"h7h6 c6c1 b3d1 c1d1 f3e1 d1e1","r":427,"t":"backRankMate endgame long mate mateIn3"},{"i":"P59TQ","f":"3r2k1/2pR1ppp/4p3/4P3/R7/2n5/PP3PPP/5K2 b - - 0 29","m":"d8d7 a4a8 d7d8 a8d8","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"P5N4S","f":"3rr1k1/1Bp2ppp/p4q2/1p2n3/5P2/8/PPP1Q1PP/R3R1K1 b - - 0 18","m":"e5c4 e2e8 d8e8 e1e8","r":560,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"P5xcB","f":"4r2k/1p4b1/2p3pp/p2p1p2/5P2/2P4Q/PP3qPP/5R1K w - - 1 29","m":"f1f2 e8e1 f2f1 e1f1","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"P67Hm","f":"3r2k1/5ppp/8/1R6/1P1N4/7P/6PK/8 b - - 0 38","m":"d8d4 b5b8 d4d8 b8d8","r":496,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"P6SGg","f":"6k1/p2b1p1p/3Q2p1/q1p5/2P5/1B3P2/P5PP/1R2r2K w - - 1 27","m":"b1e1 a5e1","r":439,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"P6U9M","f":"3r3k/6pp/6n1/3Q4/P7/6PP/4RPK1/8 b - - 0 40","m":"d8d5 e2e8 g6f8 e8f8","r":557,"t":"backRankMate endgame mate mateIn2 short"},{"i":"P6Xsf","f":"4Q1k1/1p3ppp/pq6/1b1P4/8/1P4P1/5PBP/4R1K1 b - - 0 33","m":"b5e8 e1e8","r":417,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"P6i0S","f":"7k/6pp/5p2/2rB3n/6P1/R3P3/5P1P/5K2 b - - 0 36","m":"c5d5 a3a8 d5d8 a8d8","r":539,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"P6xH1","f":"2r3k1/5ppp/1R2p3/1p6/1P3P2/2R4P/6P1/6K1 b - - 0 25","m":"c8c3 b6b8 c3c8 b8c8","r":402,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"P6zEe","f":"3r4/p6p/8/4R3/8/2P2R2/Pr1k1PPP/6K1 w - - 2 37","m":"e5a5 b2b1","r":575,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"P7ffD","f":"r5k1/pbp1nppp/1p6/4pP2/4P1PP/2P1qB2/PP1Q4/1K1R3R b - - 0 19","m":"e3f3 d2d8 a8d8 d1d8","r":400,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"P8geM","f":"k7/pp3p2/1n3K2/5N1R/4r3/6r1/8/8 b - - 7 44","m":"g3f3 h5h8 e4e8 h8e8 b6c8 e8c8","r":474,"t":"backRankMate endgame long mate mateIn3"},{"i":"P8uNt","f":"3Q3k/p1q1r1pp/1p3p2/8/1P6/P5P1/5P1P/3R2K1 b - - 0 36","m":"c7d8 d1d8 e7e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"P9QeI","f":"r3r1k1/1pp2ppp/p2p4/3PqQ2/2B5/4R3/PP3PPP/4R1K1 b - - 0 17","m":"e5f5 e3e8 a8e8 e1e8","r":409,"t":"backRankMate endgame mate mateIn2 short"},{"i":"P9eD6","f":"6k1/8/6p1/1R3p1p/q3p3/8/3p1PPP/R5K1 w - - 0 35","m":"a1a4 d2d1r","r":537,"t":"advancedPawn backRankMate endgame mate mateIn1 oneMove promotion rookEndgame"},{"i":"PAliq","f":"2r2rk1/5Rpp/pq2p3/1p1pP3/1P6/2P2Q2/6PP/5R1K b - - 2 24","m":"f8f7 f3f7 g8h8 f7f8 c8f8 f1f8","r":579,"t":"backRankMate endgame long mate mateIn3"},{"i":"PB8iI","f":"4r1k1/ppp3b1/2n1q1Np/3p1n2/8/8/PPP2PPP/RNBQ2K1 w - - 3 18","m":"g6f4 e6e1 d1e1 e8e1","r":579,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PBHUF","f":"3r2k1/p4ppp/8/8/3Rb3/4rP2/P5PP/1R4K1 b - - 0 23","m":"e4b1 d4d8 e3e8 d8e8","r":502,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"PBSn1","f":"8/p1N3pk/1p1p3p/2p5/8/2r5/P3RPPP/6K1 w - - 0 31","m":"c7b5 c3c1 e2e1 c1e1","r":580,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PBYrr","f":"7k/6pp/3p4/2p2r2/1pN1R3/pP6/PbP1K2P/8 b - - 1 38","m":"d6d5 e4e8 f5f8 e8f8","r":406,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PBtfT","f":"r4rk1/2qn1pp1/b2Np2p/pp2P3/3pN3/P4RQ1/1P3PPP/3R2K1 w - - 0 30","m":"d1d4 c7c1 d4d1 c1d1","r":431,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PCdob","f":"2k4r/1bpn2q1/p2rp2p/1p1p1B2/1P1P1RN1/P1P3P1/4QP2/2K1R3 b - - 7 27","m":"e6f5 e2e8 h8e8 e1e8","r":548,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"PCuxb","f":"5rk1/p2b1pp1/4p1qp/3pP2N/2p2P1Q/6R1/P5PP/Rr5K w - - 6 24","m":"a1b1 g6b1","r":557,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PDQS6","f":"8/7p/5kp1/3R1p2/8/B1N5/PPr2PPP/6K1 w - - 7 33","m":"d5c5 c2c1 c3d1 c1d1","r":449,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PDbEx","f":"4r1k1/5pp1/4qbp1/pR6/8/1P5P/P4PPB/1Q1r2K1 w - - 0 34","m":"b1d1 e6e1 d1e1 e8e1","r":456,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PDd3I","f":"6k1/1p3ppp/2n5/4p3/3bP1P1/2N2PK1/Rr5P/8 b - - 0 34","m":"d4c3 a2a8 c6b8 a8b8","r":464,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PDeoS","f":"r5k1/1p3pp1/2p1p1p1/4B3/p1P2b2/3r4/P1R1RPPP/6K1 w - - 0 24","m":"e5f4 d3d1 e2e1 d1e1","r":426,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"PDfzC","f":"5rk1/1p2Q1p1/p3pr2/3p3B/8/P7/1P4PP/3qR2K w - - 0 37","m":"e1d1 f6f1 d1f1 f8f1","r":423,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PDixO","f":"4r1k1/2p2ppp/4q3/8/2P2B2/5Q2/Pb3PPP/3r1RK1 w - - 0 24","m":"f1d1 e6e1 d1e1 e8e1","r":592,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"PDiy8","f":"4Q2k/p1p3pp/1pb5/8/8/6N1/PPqr2PP/3R1R1K b - - 0 23","m":"c6e8 f1f8","r":401,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PEjiW","f":"6k1/B4pp1/4p1n1/1r1rP3/R6p/5N2/5PPP/1R4K1 w - - 0 31","m":"b1b5 d5d1 f3e1 d1e1","r":573,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PEoO3","f":"3rkb1r/ppp2p2/7p/4p3/4b3/8/PPP2PPP/RN2R1K1 w k - 0 13","m":"e1e4 d8d1 e4e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PF6q2","f":"2kr2nr/ppp4p/6p1/4q3/3P4/8/PPN3PP/1K1R1B1R w - - 0 17","m":"d4e5 d8d1","r":400,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"PFBv7","f":"k7/pr4pp/2Q5/2b3B1/8/8/P1P2PPP/6K1 w - - 2 22","m":"c6c5 b7b1 g5c1 b1c1","r":549,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PFRrK","f":"5rk1/ppq2ppp/2pp1n2/5b2/2PP1Nn1/P1P3P1/4QPBP/2B1R1K1 b - - 0 17","m":"f8e8 e2e8 f6e8 e1e8","r":408,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PFfK6","f":"6k1/1p4pp/p5p1/3p4/1Q1R4/P7/1P3qPP/4r2K w - - 0 27","m":"b4e1 f2e1","r":495,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"PG6ej","f":"3Q4/1p3rkp/p2p1rp1/8/4P3/P7/1PP3PP/R3q2K w - - 0 23","m":"a1e1 f6f1 e1f1 f7f1","r":459,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"PG6wY","f":"3r1k2/ppp2prp/8/4R3/3q4/Q7/P4PPP/4R1K1 b - - 3 20","m":"f8g8 e5e8 d8e8 e1e8","r":556,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PG8CR","f":"4r1k1/Qp2rp1p/1np3pP/3p4/3P4/8/PPP5/1K2qR1R w - - 1 28","m":"f1e1 e7e1 h1e1 e8e1","r":409,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PGOEV","f":"3rkb1r/pp3ppp/5n2/2p1p3/2P5/1Q5P/PP2NPP1/R1Bq1K1R w k - 4 17","m":"b3d1 d8d1","r":429,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PGZ51","f":"5r2/pQp2qkp/6p1/8/8/8/PP4PP/1R5K w - - 1 25","m":"a2a3 f7f1 b1f1 f8f1","r":490,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"PH3ER","f":"8/r4rpk/pQ1p2Rp/1pp5/3pP3/3P4/PPP5/1K3qR1 w - - 2 28","m":"g1f1 f7f1","r":518,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"PHPgU","f":"1k1r4/ppp1qp2/6p1/3p3p/3RN3/P3PP1P/1PP2P2/2KR4 b - - 0 23","m":"d5e4 d4d8 e7d8 d1d8","r":536,"t":"backRankMate endgame master mate mateIn2 queenRookEndgame short"},{"i":"PHsOk","f":"r5k1/pb1q1ppp/1pp5/3pQ3/1P1P3P/P1P3P1/5PB1/4R1K1 b - - 0 25","m":"a8e8 e5e8 d7e8 e1e8","r":489,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PI14Y","f":"4r1k1/1p3ppp/8/p3B3/8/6P1/PPPR3K/8 b - - 0 30","m":"e8e5 d2d8 e5e8 d8e8","r":547,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"PIjnD","f":"2kr4/pp3ppp/4p2n/1b2P3/4B3/2b2N2/PPP2PPP/R1B3K1 w - - 0 15","m":"b2c3 d8d1 f3e1 d1e1","r":461,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PIrIf","f":"2r5/1br2pk1/p5p1/1p1pq3/7Q/P7/1P3PPP/1B2R1K1 w - - 2 27","m":"e1e5 c7c1 e5e1 c1e1","r":526,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"PJVWe","f":"r4rk1/pp3qp1/1np1p2p/2b1P2N/4Q1P1/5N2/PP4PP/3R1R1K w - - 9 24","m":"f3h4 f7f1 d1f1 f8f1","r":532,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PJdRm","f":"r4Q1k/6pp/p1q5/2p1r3/2B1b1P1/1PppB2P/P7/R4RK1 b - - 2 26","m":"a8f8 f1f8","r":465,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PJtzR","f":"r3r1k1/p1p2p1p/6p1/4q3/8/1P3Q2/P4PPP/R2R2K1 w - - 0 23","m":"d1e1 e5e1 a1e1 e8e1","r":586,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PJyci","f":"r3r1k1/2pNqp1p/p1B3p1/1p6/8/2Q2n2/PP3PPP/R3R1K1 w - - 0 22","m":"c3f3 e7e1 a1e1 e8e1","r":449,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PK3lz","f":"3r2k1/1p4p1/p5p1/2P4p/2p5/P1b1B3/1P2RPPP/6K1 w - - 0 26","m":"b2c3 d8d1 e2e1 d1e1","r":472,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PKA4U","f":"3kr3/Q5p1/Pp6/2p4p/2Pp3p/3Pq3/1P4PP/R5K1 w - - 1 33","m":"g1h1 e3e1 a1e1 e8e1","r":486,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"PKDrf","f":"1k6/ppp2Rpp/2n3r1/8/6P1/8/P1P5/R6K b - - 0 24","m":"g6g4 f7f8 c6d8 f8d8","r":546,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PKShZ","f":"4r3/4rpk1/p5n1/7Q/1p5P/3B1P2/PPP3P1/1K4qR w - - 0 29","m":"h1g1 e7e1 g1e1 e8e1","r":556,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PKZDh","f":"6k1/R4pp1/1P3n1p/1r2p3/8/4P3/1B3PPP/6K1 w - - 1 30","m":"b2c3 b5b1 c3e1 b1e1","r":573,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PKbPB","f":"3r2k1/pp3pp1/2p4p/4N3/1P2P1b1/2q5/2P2PPP/4Q1K1 w - - 0 24","m":"e1c3 d8d1 c3e1 d1e1","r":559,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PKfYJ","f":"7k/6pp/1B3p2/8/5Pn1/r4QPq/3R4/4rBK1 b - - 4 38","m":"a3f3 d2d8 e1e8 d8e8","r":487,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PKgoK","f":"4r1k1/1p4p1/2n4p/p2P1p2/Q4P2/P2B4/1B1n2PP/3Rq2K w - - 3 27","m":"d1e1 e8e1 d3f1 e1f1","r":508,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PLQ50","f":"8/p1q1pk1p/4Npp1/1p6/2pr4/2P1Q3/PP3PPP/6K1 w - - 1 23","m":"e6c7 d4d1 e3e1 d1e1","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PMBlb","f":"2r3k1/5ppp/pp2p3/8/P3P3/1P5P/2rR1PP1/3R2K1 b - - 1 27","m":"c2c7 d2d8 c8d8 d1d8","r":431,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"PMKw6","f":"rB4k1/5ppp/2p2p2/bpPq4/pQ1P3P/P2R2P1/1P3P2/1K2R3 b - - 0 27","m":"a5b4 e1e8","r":477,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"PNGQL","f":"r5k1/8/2R5/3P1N2/1n6/2P5/5PPP/6K1 w - - 3 47","m":"c3b4 a8a1 c6c1 a1c1","r":412,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PNTc0","f":"2r3k1/p4rpp/4n3/1p6/3P2Q1/P1P5/6PP/3R1q1K w - - 2 29","m":"d1f1 f7f1","r":451,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PO3tk","f":"k2Qr3/ppR5/8/4B2p/7P/1q6/1P3PP1/2R3K1 b - - 0 34","m":"e8d8 c7c8 d8c8 c1c8","r":582,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PO7bo","f":"1k2r3/1pp1rppp/1p5n/1P1P4/P7/5Q2/3q1PPP/R2R2K1 w - - 0 28","m":"d1d2 e7e1 a1e1 e8e1","r":585,"t":"backRankMate endgame mate mateIn2 short"},{"i":"POzdi","f":"1k5r/ppp2p2/8/8/1b2n3/1P2P3/PQK5/R5q1 b - - 1 30","m":"g1e3 b2h8 b4f8 h8f8","r":583,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"PPIWW","f":"r5k1/5ppp/5n2/Q3p3/8/8/PrP2PPP/3R1RK1 b - - 0 18","m":"a8a5 d1d8 f6e8 d8e8","r":468,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PPLLj","f":"4r2k/6pp/8/B7/Q7/4qP2/6PP/R6K w - - 1 43","m":"a1e1 e3e1 a5e1 e8e1","r":540,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PPT8G","f":"6k1/5pp1/4p2p/3pP3/p1rP4/P7/5PPP/3R2K1 w - - 0 30","m":"d1d3 c4c1 d3d1 c1d1","r":475,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"PPTej","f":"6k1/5ppp/p7/1P6/8/2r5/5PPP/R5K1 b - - 0 24","m":"a6b5 a1a8 c3c8 a8c8","r":437,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"PPVbd","f":"2r1b2k/2Q3pp/p1n2p2/1p1B4/3P4/2P2N1P/Pq4P1/4R1K1 b - - 0 28","m":"c8c7 e1e8","r":553,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"PPWXv","f":"r1b4k/ppb3pp/5r2/4B3/1PB1Pn2/P4P2/6PP/3R1R1K b - - 0 22","m":"c7e5 d1d8 f6f8 d8f8","r":574,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PPwEq","f":"r5k1/5ppp/p4b2/1p1RN3/1P6/P3P3/2r2PPP/3R2K1 b - - 4 23","m":"f6e5 d5d8 a8d8 d1d8","r":491,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PQ9Rf","f":"4r1k1/1pp2ppp/2p1b3/2n5/p1PR4/N7/PP2BPPP/5K2 b - - 0 19","m":"e8e7 d4d8 e7e8 d8e8","r":571,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PQPYJ","f":"2r5/5p1p/p2kp1p1/3p4/PN6/1P3Q2/5PPP/6K1 w - - 0 34","m":"b4a6 c8c1 f3d1 c1d1","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PQhGv","f":"r6Q/4kp1p/p1p3q1/1pPp4/3P4/6R1/PP3PPP/1B4K1 w - - 1 28","m":"h8a8 g6b1","r":583,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"PQkOV","f":"5r1k/p5pp/1p2Q3/2p1P3/P7/8/5rPP/q4R1K w - - 0 30","m":"f1a1 f2f1 a1f1 f8f1","r":437,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"PR0zF","f":"r1Q4k/4q1pp/5p2/4p3/8/3P2P1/4PP1P/2R3K1 b - - 1 28","m":"a8c8 c1c8 e7d8 c8d8","r":583,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"PRHdP","f":"2kr3r/pb3R1p/1pn1p3/1n6/8/2N5/PP4PP/R1B4K w - - 0 19","m":"c3b5 d8d1 f7f1 d1f1","r":513,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PRPWE","f":"r2qrk1Q/pb2bpp1/1pn3n1/2ppPBP1/3P4/P1P1B3/1P4P1/RN2K2R b KQ - 4 18","m":"g6h8 h1h8","r":547,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PRuOL","f":"r1b2r1k/pp3Bpp/1n6/6q1/3P4/P5B1/5PPP/R2QR1K1 b - - 0 22","m":"f8f7 e1e8 f7f8 e8f8","r":540,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PSEs4","f":"r1b2rk1/pp2n2p/4p1pQ/3p2N1/2B5/8/PP4PP/R1B2q1K w - - 2 21","m":"c4f1 f8f1","r":471,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PTZa4","f":"r4bk1/p4p1p/6p1/4p3/2rp4/1B3Q2/PP3PPP/6K1 w - - 0 31","m":"f3a8 c4c1 b3d1 c1d1","r":492,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PTc4O","f":"4r1k1/1p4p1/p4nQ1/8/1Pp5/2P5/5PPP/3Rq1KR w - - 6 31","m":"d1e1 e8e1","r":503,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PTjcb","f":"6k1/5ppp/2n1p3/p2rP3/2p1R3/5N2/PP3PPP/6K1 w - - 0 29","m":"e4c4 d5d1 f3e1 d1e1","r":403,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PU9Vg","f":"2r1rk2/3n2p1/3Pq3/3N3Q/8/1P3N2/P4PPP/3R2K1 w - - 5 33","m":"f3g5 e6e1 d1e1 e8e1","r":553,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"PUnru","f":"4r1k1/p5pp/4r3/2p5/8/P1p4P/2R2PPB/2R3K1 w - - 2 29","m":"c2c3 e6e1 c1e1 e8e1","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PUsN4","f":"5r2/5rkp/pp1Rp1p1/2p5/P3b3/1P3B2/2P3PP/3R3K w - - 0 30","m":"f3e4 f7f1 d1f1 f8f1","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PUuPS","f":"5rk1/1pp1q1p1/1p3n2/3p2Q1/1P6/3P2R1/2P3PP/R3r2K w - - 6 32","m":"a1e1 e7e1","r":407,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PVbhh","f":"1r4k1/3r1ppb/7p/pN1p4/PpP3P1/4R2P/1PP2PK1/4R3 b - - 0 30","m":"d5c4 e3e8 b8e8 e1e8","r":485,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PVj9k","f":"4rnk1/5ppp/p2q4/1p2P3/2p5/8/PPQ2PPP/4R1K1 w - - 0 24","m":"e5d6 e8e1","r":406,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"PVkrt","f":"1r4k1/4pp1p/3p2p1/2pP3n/8/2Q1P2P/R2N1PPB/1q4K1 w - - 1 24","m":"d2b1 b8b1 c3c1 b1c1","r":432,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PVxsL","f":"2r5/1p2kp2/p7/3QP1p1/1b6/5Bp1/PP6/K1q4R w - - 3 33","m":"h1c1 c8c1","r":400,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"PWQal","f":"6k1/p1p1rppp/8/2R5/8/P1P5/1r3PPP/3R3K b - - 2 25","m":"b2a2 d1d8 e7e8 d8e8","r":566,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"PWvIr","f":"3R4/2r2k1p/p3p1p1/1p2Pp2/1P3P2/P7/6PP/7K w - - 1 35","m":"d8d6 c7c1 d6d1 c1d1","r":406,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"PXRhe","f":"3r1rk1/4qp2/2p3bQ/8/1p6/N1P5/P4PPP/4R1K1 w - - 0 23","m":"e1e7 d8d1 e7e1 d1e1","r":407,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PXaBO","f":"2rR3k/5ppp/p3p3/1p2q3/8/1P1Q3P/P1P2PP1/3R2K1 b - - 1 27","m":"c8d8 d3d8","r":503,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PY38J","f":"r3Q1k1/5ppp/p2p4/8/1p6/8/Pq1B1PPP/4R1K1 b - - 2 25","m":"a8e8 e1e8","r":426,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PYQD5","f":"4r1k1/2p2pp1/2np3p/1p6/3P4/1n6/1P1N1PPP/R1B3K1 w - - 0 21","m":"d2b3 e8e1","r":453,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"PYQgJ","f":"2r2rk1/ppq2ppp/3p4/1P1P4/P7/5B1P/4QPP1/4R1K1 b - - 0 26","m":"f8e8 e2e8 c8e8 e1e8","r":494,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PYW3D","f":"4rb1k/2r4p/5p2/3N4/5p2/8/P4PPP/4R1K1 w - - 0 31","m":"e1e8 c7c1 e8e1 c1e1","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PZ0ny","f":"1r4k1/1r3ppp/4pq2/3pRP2/p1pP4/P1P4P/1P1QR1P1/6K1 b - - 0 23","m":"e6f5 e5e8 b8e8 e2e8","r":554,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PZU8B","f":"rn4k1/pB1q1ppp/8/2p5/3N2b1/2P3P1/P1PK1P1P/R3R3 b - - 0 17","m":"d7b7 e1e8","r":560,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PZVbT","f":"r7/3QNp1k/p2p1Ppp/8/1pP1r3/8/1PP3PP/3Rq2K w - - 5 29","m":"d1e1 e4e1","r":464,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PZnG1","f":"5r1k/pb4pp/8/3P2q1/2B5/2P2Q2/P5PP/R3R1K1 b - - 0 25","m":"f8f3 e1e8 f3f8 e8f8","r":460,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PZqVa","f":"3R1r1k/p5pp/5q2/2p5/8/P6P/3R1PP1/3Q2K1 b - - 0 29","m":"f8d8 d2d8 f6d8 d1d8","r":470,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PZyqY","f":"5r1k/pQ4pp/8/8/4p3/3N4/PP4PP/R4q1K w - - 1 27","m":"a1f1 f8f1","r":495,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Pa9gd","f":"2r3k1/1R3ppp/pB1p4/P2P4/2P5/2n5/5PPP/6K1 b - - 0 23","m":"c8c4 b7b8 c4c8 b8c8","r":501,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PaNC7","f":"r2R2kn/p4ppp/1q2p3/1pp4P/5P2/1P4P1/P1PQ3K/3R4 b - - 1 31","m":"a8d8 d2d8 b6d8 d1d8","r":456,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PaVds","f":"r1b3k1/1p3ppp/pq6/8/2P5/1P2QB2/Pb4PP/3R1R1K b - - 3 22","m":"b6e3 d1d8 e3e8 d8e8","r":560,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PacfQ","f":"2rQ2k1/q4ppp/p3p3/1p2P3/5n2/r4B2/5PPP/3R1RK1 b - - 1 31","m":"c8d8 d1d8","r":550,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Pahwm","f":"4r1k1/ppp1rppp/8/8/1P6/P4N2/1Q1P1PPP/2R1q1K1 w - - 3 23","m":"f3e1 e7e1 c1e1 e8e1","r":477,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"Pb1pU","f":"r1b4k/ppp2rp1/2n1N2p/3N4/1bp3Q1/8/PP4PP/R1B1Rq1K w - - 2 17","m":"e1f1 f7f1","r":592,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PbiBA","f":"k4r2/pp5R/2p4p/3p2p1/8/3P2PP/PKP5/5R2 b - - 0 31","m":"f8f1 h7h8 f1f8 h8f8","r":514,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Pc6b5","f":"4rrk1/1p3p1R/p5p1/2b5/8/7Q/PPP1B1PP/3q3K w - - 0 24","m":"e2d1 e8e1","r":521,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PcAPN","f":"4r1k1/B1p2ppp/1p3r2/8/4B3/6P1/Pb3P1P/3R1RK1 b - - 0 27","m":"e8e4 d1d8 e4e8 d8e8","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PcQ4D","f":"8/2r1kp1p/1P2p1p1/r7/1R6/8/5PPP/6K1 w - - 0 36","m":"b6c7 a5a1 b4b1 a1b1","r":418,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"PcjID","f":"7k/pp3Npp/2pr2n1/4n3/5p2/PB6/5PPP/4R1K1 b - - 1 31","m":"e5f7 e1e8 g6f8 e8f8","r":546,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Pd9MU","f":"4r1kr/pQ3ppp/5n2/4q3/1P6/2P1B3/P4PPP/R3R1K1 w - - 3 21","m":"e3d4 e5e1 a1e1 e8e1","r":549,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PdJqP","f":"1k3b2/ppp2q2/3p1Q2/7p/8/1P5P/P1P2PP1/4R1K1 b - - 0 25","m":"f7f6 e1e8 f6d8 e8d8","r":500,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PeDcG","f":"6k1/p4ppp/1q2p3/8/1p1Q2n1/6P1/PP3PBP/2R3K1 b - - 0 28","m":"b6d4 c1c8 d4d8 c8d8","r":474,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"PeStC","f":"1k1Q2r1/ppp2p1p/5B2/8/7N/5Pb1/PP2q2P/3R1R1K b - - 0 27","m":"g8d8 d1d8","r":431,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"Pev7O","f":"6k1/pp6/2b1p2p/3pnr2/1P1q4/2p3B1/P1Q3PP/1B1R3K w - - 0 36","m":"d1d4 f5f1","r":538,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PfZob","f":"8/4rR2/1p1kP3/p1q5/3p4/1P6/P3Q1PP/7K w - - 2 38","m":"f7e7 c5c1 e2d1 c1d1","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PgHwV","f":"1k4r1/pp5p/3Q2p1/1q3p2/4p3/6P1/5P1P/3R2K1 b - - 1 31","m":"b8a8 d6d8 g8d8 d1d8","r":460,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"PgMLL","f":"k3r3/pp4p1/2b5/4P3/1B1R1Prp/3Q2Pq/P3R2P/6K1 b - - 2 36","m":"h4g3 d4d8 e8d8 d3d8","r":564,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PgnBu","f":"4r3/pkp1qppp/1p6/8/QPP5/5P2/P5PP/3qR2K w - - 0 27","m":"a4d1 e7e1 d1e1 e8e1","r":421,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PgrZj","f":"2r3k1/5ppp/8/pp2R3/3r4/1P3P2/6PP/3R3K w - - 0 32","m":"d1d4 c8c1 d4d1 c1d1 e5e1 d1e1","r":467,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"PgzBL","f":"r5k1/3q1ppp/2pp4/4n3/Q4N2/8/2P2PPP/1R1R2K1 b - - 0 26","m":"a8a4 b1b8 d7c8 b8c8","r":563,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PhDVR","f":"2kr3r/ppp1n1pp/3q1p2/8/3BR1P1/1BQ4P/PPP5/1K3R2 w - - 1 23","m":"d4a7 d6d1 f1d1 d8d1","r":428,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"PhH3h","f":"3r2k1/pb2bppp/1p2pn2/8/1nN5/1N2PB2/PP3PPP/R1B3K1 w - - 3 17","m":"f3b7 d8d1","r":572,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PhPc9","f":"4R3/pp4pk/2p3pp/5r2/5r2/P1q4Q/6PP/4R2K w - - 2 32","m":"h3c3 f4f1 e1f1 f5f1","r":546,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"PhoEg","f":"2r3k1/5ppp/1p6/1P1p4/R1n1p2P/2P1P1P1/4K1B1/8 b - - 0 33","m":"c8c5 a4a8 c5c8 a8c8","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Pi3wN","f":"4r1k1/pp2Qppp/2p5/8/4P3/PbN2P2/1P4PP/3R2K1 b - - 0 22","m":"e8e7 d1d8 e7e8 d8e8","r":552,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Pi7go","f":"1k2r3/ppp3p1/8/4r2p/P2R4/2P1N1P1/1q3P2/3R2K1 b - - 12 34","m":"g7g5 d4d8 e8d8 d1d8","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PiQEo","f":"2r4k/2qR2pp/p7/P4p2/8/5P2/6PP/3R3K b - - 1 33","m":"c7c2 d7d8 c8d8 d1d8","r":508,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"PjhQ4","f":"2R5/r3Nppk/4pn1p/8/3P4/1r6/5PPP/R5K1 w - - 0 29","m":"a1a7 b3b1 c8c1 b1c1","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PjljP","f":"6k1/1R3ppp/p7/5b2/P1N5/7P/4qPPK/3r4 b - - 1 26","m":"e2f2 b7b8 f5c8 b8c8 d1d8 c8d8","r":473,"t":"backRankMate endgame long mate mateIn3"},{"i":"PkMsk","f":"6k1/pQ3ppp/8/8/8/P7/1Pq2PPP/R2r2K1 w - - 1 23","m":"a1d1 c2d1","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PkSGk","f":"Q3r1k1/p1p2ppp/6q1/4b3/8/2N1B2P/PP1R1PP1/3R2K1 b - - 0 22","m":"e8a8 d2d8 a8d8 d1d8","r":470,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Pkr3J","f":"1r4k1/r4ppp/BR3b2/8/b4NP1/7P/5P2/2R3K1 b - - 0 28","m":"b8b6 c1c8 f6d8 c8d8 a4e8 d8e8","r":443,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"PmGTD","f":"1rR3k1/p2Rnppp/4p3/3pn3/8/5B1P/P4PP1/6K1 b - - 0 23","m":"e7c8 d7d8","r":458,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PmeMb","f":"4r2k/pp1b1p1p/2p1rqpQ/1P2P3/P7/2P5/5PPP/R3R1K1 w - - 0 24","m":"e5f6 e6e1 a1e1 e8e1","r":531,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Pmn2Z","f":"3r2k1/pp3ppp/n7/3R4/1P6/P4N1P/5PP1/2R3K1 b - - 0 24","m":"d8d5 c1c8 d5d8 c8d8","r":534,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PmrPp","f":"Q1r3k1/5ppp/p5q1/1p6/8/5P2/PPPR2PP/1K1R4 b - - 0 27","m":"c8a8 d2d8 a8d8 d1d8","r":413,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Pn3II","f":"r7/4bpk1/4p1p1/2p1P3/2P2PQp/1P1q4/6PP/r2R1N1K w - - 0 38","m":"d1d3 a1f1","r":533,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"PnFn4","f":"3r2k1/pR3pp1/2p1p2p/4B3/r7/8/P5PP/5R1K w - - 4 25","m":"f1f7 d8d1 f7f1 d1f1","r":550,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PnTJU","f":"2r3k1/1p3pp1/p6p/3q4/8/P3P3/1P1Q1PPP/6K1 w - - 0 24","m":"d2d5 c8c1 d5d1 c1d1","r":457,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Pnkot","f":"3r4/2R2pkp/p3pbp1/8/4B3/5N2/P2BbPPP/6K1 w - - 1 29","m":"d2e3 d8d1 f3e1 d1e1","r":575,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Pnyc8","f":"r4Q1k/1p4pp/p1npp3/2p3qn/4P3/P1NP2P1/1PP3BP/5RK1 b - - 5 20","m":"a8f8 f1f8","r":535,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PoIE8","f":"r3Q2k/pp4pp/2p5/3p1Pr1/3P1Bnq/7P/PP6/2R1R1K1 b - - 1 27","m":"a8e8 e1e8","r":443,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PotA2","f":"4r1k1/2p2ppp/p7/1p6/3P4/8/PP3PPP/R1Bb2K1 w - - 0 18","m":"c1f4 e8e1","r":514,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Ppu8u","f":"k5r1/pp6/2p5/4Q3/8/5P2/PP2R2K/5q2 b - - 2 37","m":"f1f3 e5e8 g8e8 e2e8","r":590,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Pq567","f":"5rk1/pbp3pp/1p2p3/4P3/2P1p3/1P2R3/PB4PP/R4q1K w - - 0 25","m":"a1f1 f8f1","r":580,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"PqS1G","f":"r4bk1/p1p1rp2/2ppq2p/3nP1p1/8/2N2QB1/PPP2PPP/R3R1K1 w - - 1 19","m":"e5d6 e6e1 a1e1 e7e1","r":599,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PqW43","f":"5k2/5p2/1p1r2pp/1r6/8/8/P3RPPP/3R2K1 w - - 0 34","m":"d1d6 b5b1 d6d1 b1d1 e2e1 d1e1","r":456,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"PqW8c","f":"4r1rk/2R3p1/Nn4Qp/1p2q3/5p2/8/1P3PPP/2R3K1 w - - 0 31","m":"g6b6 e5e1 c1e1 e8e1","r":448,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"Pr8QI","f":"8/6k1/5bpp/r2B4/8/8/5PPP/3R2K1 w - - 0 36","m":"d1d2 a5a1 d2d1 a1d1","r":492,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Pr8Zi","f":"r3r1k1/p1p1qppp/1pn5/8/8/1B2Qb2/PPP2PPP/R3R1K1 w - - 0 17","m":"e3f3 e7e1 a1e1 e8e1","r":599,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Prhbr","f":"r2R2k1/1p3ppp/p7/2p5/P3Pn2/1PP5/6PP/3R1K2 b - - 1 27","m":"a8d8 d1d8","r":416,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Psdof","f":"3R1r1k/1p2bppp/p7/2p1p3/4P3/1q6/1P1QBPPP/3R2K1 b - - 0 22","m":"f8d8 d2d8 e7d8 d1d8","r":407,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Pslc0","f":"r5k1/1b3ppp/p3pq2/1p6/8/3Q4/PPB2PPP/3R2K1 b - - 3 20","m":"f6g6 d3d8 a8d8 d1d8","r":576,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"PsrWQ","f":"3r1k2/p1p2ppp/1p6/8/8/P1q5/2P2PPP/4Q1K1 w - - 0 27","m":"e1c3 d8d1 c3e1 d1e1","r":497,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Pt08A","f":"5rk1/p4ppp/b2B4/2p5/3pQ3/5P2/qP4PP/4R1K1 b - - 1 23","m":"f8c8 e4e8 c8e8 e1e8","r":596,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Pt7xq","f":"4r1k1/2p2pp1/p1p5/P2p2p1/2P5/1B6/1P3PPP/1R2r1K1 w - - 1 25","m":"b1e1 e8e1","r":441,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Pu2Xx","f":"1rR3kr/5ppp/4p3/pq1n4/8/P7/1P2NPPP/2R3K1 b - - 1 25","m":"b8c8 c1c8 b5e8 c8e8","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Pu5pQ","f":"2q1kr2/1R6/p4p2/3ppbp1/3P4/6Q1/5PPR/6K1 w - - 1 37","m":"g3b3 c8c1 b3d1 c1d1","r":461,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PuAeT","f":"8/1b3k2/p1p1R1p1/1p6/2pr1PB1/N4P2/PP5P/1K6 w - - 5 31","m":"a3c2 d4d1","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PuM6q","f":"r2r3k/1p2N1pp/pQ3p2/4p3/P1b5/4P3/1B3PPP/2Rq2KR w - - 4 26","m":"c1d1 d8d1","r":482,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PulzK","f":"4r1k1/5p2/p4R1p/1p6/8/r7/6PP/R6K w - - 0 28","m":"a1a3 e8e1 f6f1 e1f1","r":491,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Puptq","f":"3rr1k1/5ppp/p3p3/8/2Q1R3/P4N2/1P2nPPP/R2q3K w - - 3 28","m":"a1d1 d8d1 f3e1 d1e1","r":443,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PuqK3","f":"4r2k/pp4pp/2p5/4Q3/8/8/PPP3PP/3R2K1 b - - 0 23","m":"e8e5 d1d8 e5e8 d8e8","r":414,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"PvLYM","f":"2r3k1/5ppp/4p3/RPR5/1n6/5N2/5PPP/6K1 b - - 0 28","m":"c8c5 a5a8 c5c8 a8c8","r":512,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PwN2l","f":"r2r2k1/5ppp/p7/3R4/8/5KP1/PP5P/3R4 b - - 2 23","m":"a8c8 d5d8 c8d8 d1d8","r":499,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"PwY18","f":"3r3k/p5pp/8/8/P2N4/6P1/2P4P/4nR1K b - - 2 38","m":"d8d4 f1f8","r":529,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"Pwg3W","f":"6k1/6p1/P3bp1p/P1rpp3/8/4PN2/1q3PPP/1R4K1 w - - 0 29","m":"b1b2 c5c1 f3e1 c1e1","r":402,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PwmVn","f":"6k1/1R4p1/2b1pn1p/r2pN3/2p5/2P1P3/5PPP/6K1 w - - 2 26","m":"e5c6 a5a1 b7b1 a1b1","r":424,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PwrNu","f":"2r2rk1/p2p1p2/1p2p1p1/4P1Np/1R6/8/4QPPP/1Rq4K w - - 1 31","m":"b1c1 c8c1 e2d1 c1d1","r":536,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PwtKz","f":"r3Q1k1/p1p2ppp/1p6/q2r4/3n4/5N2/PRP2PPP/4R1K1 b - - 3 18","m":"a8e8 e1e8","r":464,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PxNHL","f":"4kr2/pppb3R/4pqp1/2Q5/3P4/8/PPP5/1K3rR1 w - - 4 27","m":"g1f1 f6f1","r":411,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"PxPPr","f":"r3r1k1/pp2qppp/2pn4/8/8/1QN5/PPP2PPP/3R1RK1 w - - 2 16","m":"f1e1 e7e1 d1e1 e8e1","r":537,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PxZC0","f":"2r3k1/5pp1/1P5p/1p2PQ2/1n6/5N2/5PPP/R1q3K1 w - - 1 26","m":"a1c1 c8c1 f3e1 c1e1","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Pxlf9","f":"r3rQ1k/pp4pp/8/8/8/P2bPR2/2q3PP/5RK1 b - - 6 25","m":"e8f8 f3f8 a8f8 f1f8","r":403,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Pxu0N","f":"2kr3r/ppp4p/4bR2/2b5/8/2P5/PP4PP/RN5K w - - 0 18","m":"f6e6 d8d1 e6e1 d1e1","r":406,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PyHv8","f":"2r3k1/5pp1/1pr4p/3R4/8/7P/5PPB/1R4K1 w - - 3 36","m":"d5b5 c6c1 b1c1 c8c1","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"PyV71","f":"3r2k1/p1R2ppp/1p6/b2Q4/8/4B2P/5PP1/6K1 b - - 0 32","m":"d8d5 c7c8 d5d8 c8d8","r":525,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Pyrgp","f":"k6r/pp2bp1p/1n3p2/3q1p2/5B1P/2Q2N2/PP3PP1/1KR5 b - - 7 23","m":"h8c8 c3c8 b6c8 c1c8","r":491,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"PyzMR","f":"4Q1kr/ppp2ppp/2qr4/8/2Pb4/8/PP3PPP/R1B1R1K1 b - - 8 17","m":"c6e8 e1e8","r":547,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"PzC3U","f":"k4r2/pp6/2p5/8/2P1K3/3P2R1/PP4p1/8 b - - 3 48","m":"f8f2 g3g8 f2f8 g8f8","r":423,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"PzOZP","f":"2k2b1r/ppp2p1p/2n2p2/4p3/2P1b3/4P2P/3Q2P1/3R2K1 b - - 4 23","m":"c8b8 d2d8 c6d8 d1d8","r":503,"t":"backRankMate endgame master mate mateIn2 sacrifice short"},{"i":"PzPFQ","f":"6k1/6pp/4p3/R2p4/3r4/8/P4PPP/6K1 w - - 0 31","m":"a5a6 d4d1","r":501,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"PzcBv","f":"4B2k/6p1/r6p/7R/8/1p3N2/5PPP/6K1 w - - 0 35","m":"h5b5 a6a1 f3e1 a1e1","r":484,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q0u8X","f":"4r3/p5pp/bk6/2n3B1/2n5/2P2B2/PP3PPP/RN4K1 w - - 4 25","m":"b2b3 e8e1","r":501,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Q0uRX","f":"r1b2r1k/ppp3np/3p1q2/8/2BQ4/2N2R2/PPP2PPP/5RK1 b - - 0 18","m":"f6d4 f3f8","r":404,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"Q1Mth","f":"3r2k1/5ppp/8/2pQ4/3b4/8/P1P2PPP/1R4K1 b - - 0 28","m":"d8d5 b1b8 d5d8 b8d8","r":448,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q1e7K","f":"2kr3r/ppp1q1pp/8/1n6/8/8/PP3PPP/R1B1R1K1 w - - 0 17","m":"e1e7 d8d1 e7e1 d1e1","r":415,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q2MGl","f":"1k1R3r/ppp2p2/2n4r/4P2p/4NP2/3Q2P1/qPP4P/2KR4 b - - 1 27","m":"c6d8 d3d8 h8d8 d1d8","r":407,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Q2xi1","f":"1Br3k1/1r3ppp/1p6/3P1p2/8/P5P1/2R2P1P/2R3K1 b - - 0 31","m":"c8b8 c2c8 b8c8 c1c8","r":479,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Q396R","f":"6k1/3R1ppp/3rp3/pp6/1P1PbP2/4P3/P5PP/2R3K1 b - - 0 28","m":"d6d7 c1c8 d7d8 c8d8","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q39iO","f":"3r2k1/7p/p1B1b1p1/5p2/5Q2/4P3/P2r1PPP/q1R3K1 w - - 0 28","m":"c1a1 d2d1 a1d1 d8d1","r":464,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q3Ek9","f":"2r4r/Qp3kpp/8/3p4/8/1N1p2R1/P3bPPP/q5K1 w - - 0 23","m":"b3a1 c8c1","r":431,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Q3HpM","f":"2r2r1k/6p1/4Q2p/p4p2/3p4/1P1q4/P4PPP/3R2K1 w - - 2 29","m":"d1d3 c8c1 d3d1 c1d1 e6e1 d1e1","r":593,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"Q3mvh","f":"3r2k1/7p/5qp1/1p6/8/8/PP4PP/5R1K w - - 0 34","m":"f1f6 d8d1 f6f1 d1f1","r":404,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Q42Ni","f":"r1b2rk1/1p1p1ppp/4p3/1N6/4P3/1Q6/5PPP/q4RK1 w - - 0 24","m":"f1a1 a8a1 b3b1 a1b1","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q4dqW","f":"3r2k1/p4ppp/1p2p3/8/8/1P4P1/PP3P1P/2R3K1 b - - 0 22","m":"d8d2 c1c8 d2d8 c8d8","r":500,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Q4iBY","f":"6k1/5ppp/p7/1p6/1P6/P4p2/5rrP/2RBK3 b - - 1 35","m":"f2a2 c1c8","r":421,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Q4xCb","f":"2r1r1k1/Q4R1p/6p1/3p4/8/1N6/P1n2PPP/2q3K1 w - - 0 28","m":"b3c1 e8e1","r":500,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Q4zsQ","f":"5r1k/6pp/1p6/p6q/5P2/P6r/1P2R2P/3NR2K b - - 0 35","m":"f8f4 e2e8 h5e8 e1e8 f4f8 e8f8","r":531,"t":"backRankMate endgame long mate mateIn3"},{"i":"Q6Jeg","f":"3r2k1/p4ppp/5p2/3Q4/8/8/P6K/2R5 b - - 0 35","m":"d8d5 c1c8 d5d8 c8d8","r":444,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Q6ZXu","f":"6k1/q4ppp/bB2p3/1B2Pn2/P4r2/2R3P1/P4P1P/2R3K1 b - - 1 36","m":"a7b6 c3c8 a6c8 c1c8 b6d8 c8d8","r":519,"t":"backRankMate long mate mateIn3 middlegame sacrifice"},{"i":"Q7KmR","f":"r1bk1Q1r/ppppn3/2q3pp/4P3/8/1PN5/P1P3PP/R1B2RK1 b - - 2 15","m":"h8f8 f1f8","r":421,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Q7pfg","f":"r1bRRrk1/1p3ppp/1B6/Pp6/8/2P4P/6BK/8 b - - 0 27","m":"f8e8 d8e8","r":572,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Q8AOZ","f":"2r5/6R1/8/4Bppk/p7/8/5PPP/3R2K1 w - - 3 39","m":"d1d6 c8c1 d6d1 c1d1","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q8JMv","f":"4r2k/pp3ppp/8/4Qp2/4n3/7P/PP3PPK/2RN4 b - - 0 27","m":"e8e5 c1c8 e5e8 c8e8","r":593,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q8k1m","f":"2r3k1/5ppp/Rp2p3/3p4/1P3P2/5nPK/5P1P/8 b - - 1 31","m":"c8c2 a6a8 c2c8 a8c8","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q8w80","f":"1k5r/1pp2pp1/8/8/6B1/1P2P3/q1PR2P1/3R2K1 b - - 0 23","m":"a2a7 d2d8 h8d8 d1d8","r":433,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q8wqr","f":"1r4k1/pp3ppp/2p2p2/8/2P1q3/P4QP1/3R1P1P/3R2K1 b - - 0 26","m":"e4f3 d2d8 b8d8 d1d8","r":598,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Q91Jc","f":"nk2r3/pppnr2p/6p1/PP6/8/1BR1B3/5PPP/2R3K1 w - - 3 28","m":"e3f4 e7e1 c1e1 e8e1","r":403,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Q99NG","f":"4r1k1/1b2Bppp/p1r1p3/1p6/4P3/1B6/PPP3PP/1K1R3R b - - 0 19","m":"e8e7 d1d8 e7e8 d8e8","r":567,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q9VMU","f":"8/1pk5/1b6/2r5/p7/P4N2/1P1R2PP/7K w - - 5 34","m":"f3d4 c5c1 d2d1 c1d1","r":571,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q9ZuA","f":"r1b1r2k/2pqb1pp/ppn2B2/3p4/3P4/1BP2N2/PP2QPPP/R3R1K1 b - - 0 17","m":"e7f6 e2e8 d7e8 e1e8","r":513,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Q9g1x","f":"5rk1/5pp1/p1RNpn1p/8/3R4/8/Pr3PPP/6K1 w - - 0 22","m":"c6a6 b2b1 d4d1 b1d1","r":564,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q9mJM","f":"4r1k1/p6p/2P2pp1/3pB3/4rP2/8/P1R3PP/R6K w - - 0 27","m":"e5f6 e4e1 a1e1 e8e1","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Q9sFx","f":"2b2rk1/6p1/2p4p/8/2P1Q3/1P6/P5PP/4Rq1K w - - 3 35","m":"e1f1 f8f1","r":426,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Q9vBT","f":"2r4k/1b3ppp/4p3/8/2Q5/q4N1P/5PP1/3R1RK1 b - - 0 25","m":"c8c4 d1d8 a3f8 d8f8","r":535,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QAUEt","f":"r1b1Q1k1/5ppp/p1p2n2/8/2Pp4/3P4/PP3PPP/R3R1K1 b - - 0 18","m":"f6e8 e1e8","r":439,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QAtO5","f":"2R5/5ppk/4p2p/p2rP3/8/P4N2/1P3PPP/6K1 w - - 1 28","m":"c8b8 d5d1 f3e1 d1e1","r":437,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QBKYV","f":"8/2PQ2pp/rp2pk2/5p2/4p3/8/5PPP/6K1 w - - 2 34","m":"c7c8q a6a1 c8c1 a1c1 d7d1 c1d1","r":465,"t":"backRankMate endgame long mate mateIn3"},{"i":"QBVN4","f":"1r3rk1/p3Qppp/1p6/3P4/8/8/q4PPP/3RR1K1 b - - 1 21","m":"f8e8 e7e8 b8e8 e1e8","r":548,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QBqJo","f":"5rk1/1p3r1p/p3R1p1/8/P7/3Q4/3q2PP/R6K w - - 0 25","m":"d3d2 f7f1 a1f1 f8f1","r":416,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"QChXn","f":"6k1/pp1q1ppp/n7/1Q1p4/3PnN2/P3PN2/5PPP/2R3K1 b - - 0 30","m":"d7b5 c1c8 b5e8 c8e8","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QCwwx","f":"2r1R2k/3Q2pp/8/1p6/p2P4/P1q3P1/5PKP/8 b - - 1 33","m":"c8e8 d7e8","r":524,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QDDEh","f":"3r2k1/p1p2ppp/1np5/4R3/8/1PPQ3P/P2B1PP1/6K1 b - - 0 21","m":"d8d3 e5e8","r":503,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QE4R6","f":"4R3/1pp1NRpk/pb5p/8/3P4/2P5/rP4PP/7K w - - 0 29","m":"e7f5 a2a1 e8e1 a1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QE9FR","f":"2r3k1/p2n1ppp/4p3/8/1P1PQ3/P3PN2/5PPP/R1q3K1 w - - 1 21","m":"a1c1 c8c1 f3e1 c1e1","r":496,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QEPvn","f":"5rk1/4b2p/r3P3/1p3pp1/1P1Nb3/1BP1R3/1P1N1PPP/6K1 w - - 3 31","m":"d2e4 a6a1 b3d1 a1d1 e3e1 d1e1","r":563,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"QEXaq","f":"2k1r3/ppp3Q1/4rn2/8/8/2N5/PPP3PP/3R3K w - - 1 22","m":"c3b5 e6e1 d1e1 e8e1","r":517,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QEdL6","f":"rnbr2k1/pp3ppp/4pn2/8/2N5/2b3P1/PP2PPBP/R1B2K1R w - - 0 12","m":"b2c3 d8d1","r":514,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QEmti","f":"3Q1rk1/pp3ppp/8/8/8/4R3/Pq3PPP/4R1K1 b - - 0 20","m":"f8d8 e3e8 d8e8 e1e8","r":449,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"QExVf","f":"7k/5rp1/7p/p2R4/8/8/5rPP/2R4K w - - 0 36","m":"d5a5 f2f1 c1f1 f7f1","r":523,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QFMpD","f":"2Q2r1k/pp2R1pp/8/8/5p2/7P/PqP2PP1/4R1K1 b - - 0 23","m":"f8c8 e7e8 c8e8 e1e8","r":491,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"QFYw3","f":"3r4/6pk/R1P1p2p/PP3p2/8/8/5PPP/6K1 w - - 1 39","m":"b5b6 d8d1","r":439,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"QGDGK","f":"4r1k1/1p3ppp/p5q1/4Q3/8/2N5/PP1R1PPP/R5K1 b - - 0 23","m":"e8e5 d2d8 e5e8 d8e8","r":462,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QGOVy","f":"r2q3r/ppp2k2/4Rn1p/4bQp1/3P4/2P5/P4PPP/R1B3K1 w - - 0 16","m":"d4e5 d8d1","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QGVQf","f":"r5k1/1p4pp/p3p3/3p2Q1/1b1qr3/5N2/P4PPP/RN4K1 w - - 4 23","m":"f3d4 e4e1","r":458,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QGVQo","f":"r1B5/6k1/pR4p1/q1p3Pp/3p4/7Q/P1P3PP/1R2r2K w - - 1 28","m":"b1e1 a5e1","r":498,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QH0Gx","f":"1r1R3k/2p1Q1pp/p3p3/4q3/8/8/2P3PP/2K5 b - - 1 32","m":"b8d8 e7d8","r":565,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QH3iS","f":"7k/pp2r1pp/4P1p1/8/7P/6P1/2P1PP2/3R2K1 b - - 1 29","m":"e7e6 d1d8 e6e8 d8e8","r":465,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QHHwL","f":"6k1/1q3pp1/p3p2p/P3P3/8/8/2r2PPP/1R4K1 w - - 0 33","m":"b1b7 c2c1","r":459,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"QItTp","f":"2k2r2/1bpp4/pp5p/4p3/4P2K/2NP3P/PPr5/6R1 b - - 1 28","m":"f8f2 g1g8 f2f8 g8f8","r":485,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QJWch","f":"2rr2k1/1p3ppp/pb3q2/2nQ2B1/3N4/2P3P1/PP2RP1P/4R1K1 b - - 2 22","m":"d8d5 e2e8 c8e8 e1e8","r":531,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"QK0hM","f":"r2Q1k2/ppp1ppp1/4q3/4n1p1/8/2N1P3/PPP1B3/2KR4 b - - 1 16","m":"a8d8 d1d8","r":437,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QKXUr","f":"3r2k1/pp3ppb/2p1p2p/2PR4/1q1P2P1/1Pn2NQ1/P4P1P/R5K1 b - - 0 29","m":"d8d5 g3b8 d5d8 b8d8","r":438,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"QL1sU","f":"5rk1/5ppp/4p3/8/2RP4/4PK2/1r4PP/2R5 b - - 3 30","m":"f8b8 c4c8 b8c8 c1c8","r":476,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QLAuk","f":"8/5k2/p7/1p2rP2/2p5/5R2/PPPN4/2K5 w - - 4 41","m":"f5f6 e5e1","r":415,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QLG9L","f":"r5k1/5ppp/4p3/3pP1P1/p3PP2/Pp1Q4/1Pr1N2q/3RK3 b - - 2 32","m":"d5e4 d3d8 a8d8 d1d8","r":541,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"QLJqL","f":"4r1k1/B2bqppp/5n2/2p5/8/5B2/PQP3PP/RN5K w - - 0 19","m":"b1c3 e7e1 a1e1 e8e1","r":570,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"QLfOE","f":"8/5pkp/6p1/P3q3/r7/8/5PPP/4R1K1 w - - 0 33","m":"e1e5 a4a1 e5e1 a1e1","r":573,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QLot4","f":"r3r1k1/pp3ppp/5b2/2pqn2b/2N2P2/1PP1R3/PB4PP/4RBK1 b - - 0 21","m":"e5c4 e3e8 a8e8 e1e8","r":413,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"QMM9r","f":"R4rk1/5ppp/1qp5/3p4/3P4/4Q2P/P4PP1/4R1K1 b - - 0 25","m":"f8a8 e3e8 a8e8 e1e8","r":485,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"QMPv6","f":"5r1k/p4Qpp/3p3b/3P4/2P5/p6P/P4PP1/4R1K1 b - - 0 30","m":"f8f7 e1e8 f7f8 e8f8","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QMdL3","f":"6k1/p4pp1/1p2p1p1/3n4/P2q2P1/7Q/1P4PP/2Rr3K w - - 1 32","m":"c1d1 d4d1","r":429,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QMmTh","f":"1r2R2k/p1r2Qpp/2p2p2/2P5/3P1q2/P1n2N2/5PPP/R5K1 b - - 4 32","m":"b8e8 f7e8","r":458,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QNo98","f":"r5k1/5ppp/1q1p1b2/1N2p3/1P1P1P2/8/4QP1P/4R1K1 b - - 0 23","m":"e5d4 e2e8 a8e8 e1e8","r":474,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"QNpvd","f":"5Q1k/r1p3pp/1p2p1n1/p2q4/3P4/2P3B1/PP4PP/5RK1 b - - 6 23","m":"g6f8 f1f8","r":467,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QOb2x","f":"Bnr2Q1k/p5pp/1n2p3/4q3/8/BP5P/P1P3P1/5RK1 b - - 2 19","m":"c8f8 f1f8","r":466,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QOtpE","f":"rn1r1Q1k/6pp/p3P3/1ppqb3/8/3PB3/PPP3PP/R4RK1 b - - 2 18","m":"d8f8 f1f8","r":527,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QPFmx","f":"r5k1/1p1r1ppp/2pP4/1p1n1P2/8/P2B3P/1PP1R1P1/4R1K1 b - - 1 22","m":"d7d6 e2e8 a8e8 e1e8","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QPKR3","f":"6k1/p2n1ppp/8/3Qp1b1/Np2P3/1P3P2/PB3rPP/4Rq1K w - - 2 24","m":"e1f1 f2f1","r":518,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"QPk8V","f":"1k1r1b1r/ppp3pp/5p2/3bp3/8/2B5/PP2PPPP/2KR1BR1 b - - 1 16","m":"d5a2 d1d8","r":401,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"QQNGv","f":"r3Q1k1/1p3ppp/p2P2q1/8/8/P1N4P/1P3PPn/R1B1R1K1 b - - 0 21","m":"a8e8 e1e8","r":529,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QQqTm","f":"r3r1k1/5ppp/p7/4Q3/2b2B2/8/Pq3PPP/RN4K1 w - - 0 22","m":"e5b2 e8e1","r":564,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QR2lU","f":"3r1k2/4b2Q/1ppq1p2/p4Bp1/P7/2P1B3/1P3PPP/R5K1 w - - 1 30","m":"f5g6 d6d1 a1d1 d8d1","r":564,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"QRcAk","f":"1rQ3k1/5ppp/1P2p3/4P3/8/1q3PBP/2R2PK1/8 b - - 2 36","m":"b8c8 c2c8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QRo8T","f":"5r2/1Np5/p5pk/7p/7P/8/PPP5/1K3r1R w - - 1 42","m":"h1f1 f8f1","r":440,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QRqg8","f":"3r3k/pp3Rpp/2p5/3q2Q1/2r4P/P5P1/KP6/5R2 b - - 0 33","m":"d5g5 f7f8 d8f8 f1f8","r":571,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"QSPOc","f":"1Rn2bk1/2r2p1p/4n1p1/Q3p3/P7/8/5PPP/1Rq3K1 w - - 3 30","m":"b1c1 c7c1 a5e1 c1e1","r":540,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"QSiFF","f":"2r3k1/p4ppp/4p3/3p4/1P6/Pqr5/R1PQ1PPP/6K1 w - - 0 22","m":"c2b3 c3c1 d2c1 c8c1","r":484,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"QTArw","f":"4r1k1/p5p1/1ppRNb1p/8/4r3/P1P5/1P3PPP/3R2K1 w - - 3 24","m":"e6c7 e4e1 d1e1 e8e1","r":487,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QTYG0","f":"3r2k1/ppp2pp1/7p/4Q3/8/3q4/PP3PPP/R5K1 w - - 0 19","m":"e5c7 d3d1 a1d1 d8d1","r":534,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"QTjMe","f":"3rbrk1/pp4pp/4p3/4Rp2/5B2/6Q1/P4PPP/1R1q2K1 w - - 2 23","m":"b1d1 d8d1 e5e1 d1e1","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"QUC79","f":"Q3r1k1/2p2ppp/2p3q1/5b2/1P1Rp3/2P1P1P1/P3BPP1/3R2K1 b - - 0 21","m":"e8a8 d4d8 a8d8 d1d8","r":426,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QUFQL","f":"5rk1/5ppp/4p3/1p6/1PrR4/8/1P3PPP/3R2K1 b - - 1 25","m":"f8c8 d4d8 c8d8 d1d8","r":525,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QUzwb","f":"r5k1/3N2p1/2p2p1p/1bb5/5P2/8/2PR2PP/7K w - - 2 33","m":"d7c5 a8a1 d2d1 a1d1","r":443,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QVPRo","f":"6k1/2r2ppp/5b2/3pN3/1R1P4/6P1/4PP1P/6K1 b - - 0 28","m":"f6e5 b4b8 c7c8 b8c8","r":463,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QVcA1","f":"3R1B2/1p3p1p/4bkp1/8/8/8/1rP2PPP/6K1 w - - 4 33","m":"d8d2 b2b1 d2d1 b1d1","r":546,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QVmDS","f":"5r1k/bp4p1/p1p2qnp/P2p4/1P1P2Q1/2P3N1/3B2PP/4R2K w - - 2 32","m":"e1f1 f6f1 g3f1 f8f1","r":432,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"QVyS7","f":"4rr1k/pp3pbp/3p1np1/3b4/3BP1P1/5P2/PPPR3P/1K3B1R w - - 0 17","m":"e4d5 e8e1 d2d1 e1d1","r":462,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"QWarP","f":"2rQ3k/6pp/b7/8/p7/P1b1P3/1P4PP/2KR4 b - - 1 34","m":"c8d8 d1d8","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QWphj","f":"4Q1k1/1p1q1ppp/p1r2b2/P1pp4/B7/3P3P/1PP2PP1/R3R1K1 b - - 0 21","m":"d7e8 e1e8","r":562,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QXjJR","f":"3q1Q1k/6pp/p1b5/1p6/1Pp1n3/P7/4B1PP/5RK1 b - - 1 33","m":"d8f8 f1f8","r":447,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"QXoos","f":"6k1/2p2ppp/pr6/3R1b2/3Pp3/4P1P1/5PBP/6K1 b - - 0 28","m":"f5g6 d5d8","r":425,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QXy1a","f":"6k1/5ppp/4p3/rp6/1p1P4/4P3/5PPP/1R4K1 w - - 0 32","m":"b1b4 a5a1 b4b1 a1b1","r":406,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QY60o","f":"5r1k/1pp1Q1pp/1p1p4/4n3/3NP3/2P5/PP4PP/R4q1K w - - 10 22","m":"a1f1 f8f1","r":415,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QYIGY","f":"4r3/1bp1rp1k/p4p1p/1p1P4/1P3Q2/2N2N2/1P3PPP/3q2K1 w - - 0 28","m":"c3d1 e7e1 f3e1 e8e1","r":485,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"QYRAd","f":"2r3k1/5ppp/1R2p3/1p2P3/p3pP2/4P3/PK5P/8 b - - 1 26","m":"c8c5 b6b8 c5c8 b8c8","r":411,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QZR5y","f":"1r1k1r2/3bb1Q1/pP2P3/P7/8/2N5/1P4PP/3R1q1K w - - 1 32","m":"d1f1 f8f1","r":497,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QZRvx","f":"k7/pp3p1R/8/3r4/8/8/5PPK/8 b - - 0 41","m":"d5d7 h7h8 d7d8 h8d8","r":544,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QZY3c","f":"2r3k1/2Q2ppp/4bn2/8/8/1Pp3P1/P3PPBP/3R2K1 b - - 0 19","m":"c8c7 d1d8 f6e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QZhVr","f":"3r2k1/1p3pbp/p1p3p1/R2Pp3/1P6/2P1B3/1P3PPP/6K1 w - - 1 23","m":"d5c6 d8d1","r":400,"t":"backRankMate endgame master masterVsMaster mate mateIn1 oneMove"},{"i":"Qa4Ws","f":"R5k1/5ppp/2r5/5PP1/2pr4/P1R5/8/6K1 b - - 3 39","m":"d4d8 a8d8","r":478,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove rookEndgame"},{"i":"QaSPd","f":"2r5/4k3/pp2p2p/5p2/5Pp1/P2R4/1P3PPP/6K1 w - - 3 30","m":"d3d2 c8c1 d2d1 c1d1","r":428,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Qb406","f":"1k6/ppp1p1R1/6n1/2Nr1p2/6p1/2P1P1P1/5PK1/8 b - - 1 33","m":"d5c5 g7g8 g6f8 g8f8","r":594,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"QbNIc","f":"6k1/pp3ppp/2p3q1/3nP3/3QPP2/2B4P/PP4P1/6K1 b - - 0 25","m":"d5c3 d4d8","r":455,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QcJuE","f":"2rQ2k1/1b3ppp/4p3/4P3/8/6Pq/1PP2P1P/3RR1K1 b - - 2 27","m":"c8d8 d1d8","r":401,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QcdHZ","f":"6k1/5ppp/p7/2p3r1/8/P2R1rbP/1P6/3R3K b - - 5 47","m":"g3c7 d3d8 c7d8 d1d8","r":591,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"QchQM","f":"6k1/1p2Rpbp/pB4p1/3p4/3P4/1P6/P4PPP/2r3K1 w - - 4 26","m":"e7e1 c1e1","r":440,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"QdLjY","f":"r5k1/4rppp/4p3/pP1pP3/8/8/2R2PPP/2R3K1 b - - 0 31","m":"e7b7 c2c8 a8c8 c1c8","r":433,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QdOqA","f":"4r2k/6p1/1Q4pp/5Pn1/2pp4/P6P/5PPB/6K1 w - - 0 36","m":"b6d4 e8e1","r":481,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QdfD7","f":"4r1k1/2p2pp1/2p4p/p3r3/P7/7Q/1PP2qPP/5R1K w - - 0 25","m":"f1f2 e5e1 f2f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"QeOsp","f":"5r2/2p1Rpk1/6pp/2q5/3pP2Q/3r1N2/5PPP/2R3K1 w - - 1 29","m":"c1c5 d3d1 f3e1 d1e1","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QeVm2","f":"6Qk/pp3ppp/4b3/1P2p3/P1p1P3/2P2P2/4q1PP/3R3K b - - 0 32","m":"h8g8 d1d8","r":505,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QfZD4","f":"r1br3k/p3b1pp/2p5/5p2/8/2p5/PPP2PPP/R1B1R1K1 w - - 0 18","m":"e1e7 d8d1 e7e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QfwNm","f":"1k3r2/ppp2BB1/3p4/1P4p1/P3ppn1/4P3/K1PP1r2/7R b - - 3 30","m":"f8f7 h1h8 f7f8 h8f8","r":507,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QgLDw","f":"r1b1r1k1/pp1p1p1p/2p3pQ/4q3/2n5/1NN5/PPB2PPP/R4RK1 w - - 0 19","m":"f1e1 e5e1 a1e1 e8e1","r":512,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"QgVA9","f":"4Q2k/ppp3pp/5b1r/3r3q/5Pb1/5NP1/PP1N1R1P/4R1K1 b - - 1 24","m":"h5e8 e1e8","r":463,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QgiDk","f":"1r2r1k1/1p3ppp/p1p1q3/4N3/3P2b1/1Q6/PP3PPP/2R1R1K1 w - - 1 22","m":"e5g4 e6e1 c1e1 e8e1","r":569,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Qgq05","f":"r6k/1p4pp/p1p5/8/1P1P4/PBP2rb1/5RK1/5R2 b - - 1 33","m":"f3c3 f2f8 a8f8 f1f8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Qhud4","f":"3r2k1/6p1/4p2p/PN2Pp2/8/P7/4qPPP/4R1K1 w - - 0 29","m":"e1e2 d8d1 e2e1 d1e1","r":433,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Qi3pn","f":"r1b1r1k1/pp2Nppp/1b4q1/8/4P3/5P2/PP1Q2PP/2KR1B1R b - - 2 16","m":"e8e7 d2d8 b6d8 d1d8 e7e8 d8e8","r":512,"t":"backRankMate long master mate mateIn3 middlegame sacrifice"},{"i":"Qi78v","f":"5kN1/1b3p2/p1p1p3/1p2r3/P5p1/1R6/2r2PPP/4R1K1 w - - 2 31","m":"e1e5 c2c1 e5e1 c1e1","r":427,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QiI5N","f":"rn1Q3k/ppp1b1pp/8/8/6bq/3P4/PP1P2PP/RNB2R1K b - - 1 18","m":"e7d8 f1f8","r":416,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QiZp8","f":"2r3k1/p4Qpp/2p4b/8/4p2P/8/PPq3P1/5R1K b - - 0 26","m":"g8h8 f7f8 c8f8 f1f8","r":562,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"QinWi","f":"8/6k1/p5p1/3Q1r2/8/8/PP4PP/7K w - - 2 44","m":"d5e6 f5f1","r":430,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"Qiyyy","f":"1r4k1/1R3ppp/4pn2/8/4n3/4PN2/2R2PPP/5BK1 b - - 0 24","m":"b8b7 c2c8 f6e8 c8e8","r":542,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QjBv0","f":"2r3k1/p4pp1/8/8/6n1/2r5/P2NPP1P/R3K1R1 w Q - 0 24","m":"g1g4 c3c1 a1c1 c8c1","r":518,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QjKSq","f":"6k1/5ppp/1R6/3P1p2/5P2/1P2K3/6PP/3r4 b - - 4 27","m":"d1d5 b6b8 d5d8 b8d8","r":439,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QjShB","f":"2r4k/2r3pp/p7/4R2P/8/2Q5/P7/K3R3 b - - 0 36","m":"c7c3 e5e8 c8e8 e1e8","r":558,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QjsOT","f":"5r1k/1pp2rp1/7p/pP2P3/P5Q1/2P5/6PP/RN2Rq1K w - - 2 24","m":"e1f1 f7f1","r":430,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QjsRr","f":"R6k/1r4pp/4p3/1p1p2B1/8/8/2q2rPP/2N2RK1 b - - 1 28","m":"f2f8 f1f8","r":400,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"QjuPj","f":"6k1/p1p1r1pp/4R2B/3n1r2/1bN3Q1/8/PP4PP/R4q1K w - - 2 29","m":"a1f1 f5f1","r":471,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Qjzbm","f":"3r3k/1p4p1/p6p/P7/8/2P5/1P2qPPP/4R1K1 w - - 0 30","m":"e1e2 d8d1 e2e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Qk6vv","f":"6k1/1p3pp1/4p1bp/1P1p3P/6P1/3P1B2/1r2PP2/R5K1 b - - 0 29","m":"g6h7 a1a8","r":485,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"QkS5G","f":"r1bQ2k1/1p2nppp/p1n1q3/4p3/4P3/2N1B3/PPP2PPP/2KR1B1R b - - 0 13","m":"c6d8 d1d8","r":492,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Qkg8C","f":"6k1/5p1p/1p4p1/p4b2/P1P1p3/1B6/2Pr1PPP/4R1K1 w - - 0 30","m":"e1e3 d2d1 e3e1 d1e1","r":451,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QlJN5","f":"4r1k1/p4p1p/n2p2p1/2pP1pN1/2P2P2/1qb5/6PP/2BQ3K w - - 0 22","m":"d1b3 e8e1","r":471,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"QlcaV","f":"2B3k1/5ppp/p1r5/1p6/3P4/4P3/PP2QPPP/6K1 w - - 1 30","m":"e2g4 c6c1 g4d1 c1d1","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QmSNI","f":"r1b1k2r/pp2nppp/4p3/1BP1P3/1n3B2/2N5/2P2PPP/3RK2R b K - 1 14","m":"e8f8 d1d8","r":535,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QmcWh","f":"1q5k/1r4pp/1p1QBp2/8/8/4P1P1/5P1P/2R3K1 b - - 0 31","m":"b8d6 c1c8 d6d8 c8d8","r":544,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QmtP1","f":"5r2/1p1k2pQ/p3pr2/2bp4/8/P2P4/1P4PP/R3Rq1K w - - 5 26","m":"e1f1 f6f1 a1f1 f8f1","r":445,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Qmxd8","f":"6k1/2r2pp1/4pn1p/1R1p4/P2P4/5P2/1P2NPPP/6K1 w - - 3 29","m":"e2f4 c7c1","r":516,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Qn9wg","f":"6k1/1pp4p/1p6/8/4P3/3P1R2/rP4PP/7K w - - 0 26","m":"f3f2 a2a1 f2f1 a1f1","r":416,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QnavV","f":"r1b2rk1/1p4pp/4p1p1/p2pn3/P7/2P2N2/1PQ3PP/RN2q2K w - - 0 16","m":"f3e1 f8f1","r":590,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QoAo2","f":"rQ4k1/5ppp/2b3q1/3pn3/P1p5/4P3/4BPPP/1RR3K1 b - - 1 28","m":"a8b8 b1b8 c6e8 b8e8","r":493,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"QoMts","f":"7k/4q1pp/6p1/3p4/3P4/7P/Q4PP1/6K1 b - - 0 38","m":"e7e4 a2a8 e4e8 a8e8","r":540,"t":"backRankMate endgame mate mateIn2 queenEndgame short"},{"i":"QoZZz","f":"2kr3r/1pp3pp/p4p2/4B3/P3R3/b7/2P2PPP/R5K1 w - - 0 19","m":"a1a3 d8d1 e4e1 d1e1","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QonEC","f":"2r1k3/4ppb1/6p1/7p/1q2P3/1PpQ1P1P/6P1/3RB1K1 b - - 3 33","m":"e8f8 d3d8 c8d8 d1d8","r":583,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"QoyFs","f":"1k1r3r/ppp2Rp1/4n3/2b1P2p/2P3B1/2P5/P5PP/R1B4K w - - 0 18","m":"g4e6 d8d1 f7f1 d1f1","r":495,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Qp6fK","f":"6k1/p4ppp/1p2p3/8/1P1P4/P7/r4PPP/4R1K1 w - - 1 24","m":"e1e3 a2a1 e3e1 a1e1","r":474,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QpWfi","f":"r3n1k1/p1pr1ppp/1pN5/1P6/2R5/4P3/Pb3PPP/1R4K1 w - - 0 21","m":"b1b2 d7d1","r":453,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QpgX6","f":"3r2k1/p2q1ppp/8/7Q/2P1p3/1P6/P4PPP/3r1RK1 w - - 0 21","m":"f1d1 d7d1 h5d1 d8d1","r":468,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Qphzl","f":"4r2k/2R3pp/4Qp2/1p6/p2p1P2/3P4/PP4PP/3n2K1 b - - 0 31","m":"e8e6 c7c8 e6e8 c8e8","r":478,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Qqwb4","f":"4r1k1/5ppb/2R4p/1p1pQ3/6P1/7P/2P2P2/6K1 b - - 0 35","m":"e8e5 c6c8 e5e8 c8e8","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Qr1Ef","f":"1r4k1/2Q2ppp/p3p3/3pP3/P7/2R5/6PP/1rRq3K w - - 8 27","m":"c1d1 b1d1","r":412,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"QrSwr","f":"3r2k1/pp1Q1ppp/1r3p2/2RP4/1P6/P5P1/3R1P2/6K1 b - - 0 30","m":"d8d7 c5c8 d7d8 c8d8","r":425,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QrvZ5","f":"5b1r/2R2pp1/3Pk2p/4P3/q7/8/PQ3PPP/6K1 w - - 3 28","m":"c7c8 a4d1","r":513,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QsCaQ","f":"3qR2k/6pp/b3Q3/1p6/p7/P1P3PP/1P4K1/8 b - - 3 35","m":"d8e8 e6e8","r":599,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"QsCr7","f":"q4Q1k/6pp/8/8/8/4P1P1/r6P/5RK1 b - - 8 44","m":"a8f8 f1f8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QsIw6","f":"8/2r3pk/7p/8/4q3/8/5PPP/4R1K1 w - - 0 37","m":"e1e4 c7c1 e4e1 c1e1","r":447,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QtHFf","f":"3r3k/3N2pp/5p2/Q3p3/P3P3/5PPK/1q5P/8 b - - 0 43","m":"b2d4 a5d8","r":577,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"Qu55a","f":"4r3/pp5k/7b/Q7/3pr3/P7/1P4PP/3Rq2K w - - 8 44","m":"d1e1 e4e1 a5e1 e8e1","r":421,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QuPsY","f":"6k1/2b2pp1/p6p/8/8/P2P4/1r3PPP/2R3K1 w - - 0 25","m":"c1c7 b2b1 c7c1 b1c1","r":401,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"QuTCi","f":"5k1r/ppN1npp1/2n1p1p1/4N3/6P1/8/PPP2PK1/3R4 b - - 2 18","m":"c6e5 d1d8","r":483,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Quago","f":"b1r3k1/4Rppp/pB6/3p4/1pr5/7P/PPP2PP1/4R1K1 b - - 6 24","m":"c4c2 e7e8 c8e8 e1e8","r":567,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Quy2H","f":"1r4k1/2R5/3nNp1R/3P4/B7/8/P4PPP/6K1 w - - 3 44","m":"h6h7 b8b1 c7c1 b1c1 a4d1 c1d1","r":440,"t":"backRankMate endgame long mate mateIn3"},{"i":"QvAVq","f":"7k/7p/6pB/p1N2p2/5P2/3b4/Pr4PP/3R3K w - - 0 30","m":"d1d3 b2b1 d3d1 b1d1","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QvVtp","f":"4rR1k/1p4pp/1b5q/p2B4/P2N4/4r1P1/1P1Q3P/5RK1 b - - 2 26","m":"e8f8 f1f8","r":589,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Qvy3e","f":"r5k1/pppR1ppp/3b2r1/8/8/1P3PN1/P4P2/3R1K2 b - - 7 27","m":"d6g3 d7d8 a8d8 d1d8","r":589,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Qw6UA","f":"2r3k1/p4ppp/1p6/3q4/3P2n1/P4P2/2Q2BPP/1R2R1K1 b - - 0 23","m":"c8c2 e1e8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Qw944","f":"5rk1/Q1p4p/1p2p1p1/3pPr2/3P4/P7/6PP/2qR3K w - - 0 31","m":"d1c1 f5f1 c1f1 f8f1","r":566,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"QwXYY","f":"r1b2rk1/ppp3p1/7p/2p5/3PR3/2P5/PP4PP/RN1Q1q1K w - - 2 18","m":"d1f1 f8f1","r":413,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Qwd6J","f":"r4n2/pp2r3/2p1qpkp/3p1Np1/3P2Q1/8/PPP2PPP/R4RK1 w - - 2 24","m":"f1e1 e6e1 a1e1 e7e1","r":485,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"QwdgS","f":"r5k1/3R1pp1/p6p/1pp5/3b4/P2P1N2/R1P1rPPP/6K1 w - - 3 21","m":"f3d4 e2e1","r":519,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"QwoZO","f":"1Q4k1/5ppp/2r1p3/3pb3/8/4P2P/6P1/1R4K1 b - - 0 32","m":"e5b8 b1b8 c6c8 b8c8","r":434,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QxJqP","f":"2k1r3/3n4/4r1pp/p7/1p1R4/1P1n4/PBP2PPP/3R2K1 w - - 2 27","m":"d4d3 e6e1 d1e1 e8e1","r":578,"t":"backRankMate endgame mate mateIn2 short"},{"i":"QxPrx","f":"2k4r/ppp3p1/2b1B3/5p2/7p/2PQPPq1/PP4P1/3R2K1 b - - 0 26","m":"c8b8 d3d8 h8d8 d1d8","r":563,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"QxnoA","f":"r2Q2kr/p4ppp/p1p4n/2B2P1q/4P3/2N5/PPP3PP/2KR4 b - - 3 17","m":"a8d8 d1d8","r":406,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"QyTy0","f":"4r1k1/2q2pp1/7p/pR1PpN2/4P3/1Q6/P4PPP/6K1 w - - 1 29","m":"b5b7 c7c1 b3d1 c1d1","r":410,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Qz2Mr","f":"5rk1/pp4bp/2n1n1p1/2pQp3/2Np4/1P1P4/P1PB2PP/R4q1K w - - 6 22","m":"a1f1 f8f1","r":496,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Qzqzs","f":"4r1k1/1p3ppp/p5b1/3r4/5R2/8/PP4PP/3R3K w - - 0 23","m":"d1d5 e8e1 f4f1 e1f1","r":562,"t":"backRankMate endgame mate mateIn2 short"},{"i":"R0J4M","f":"2kr1r2/pp4p1/3ppq1p/2b2P2/2Np2Q1/3P4/PPPB2PP/R4R1K w - - 0 18","m":"f5e6 f6f1 a1f1 f8f1","r":568,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"R0N9Q","f":"rn1r3k/ppp3pp/5b2/3Q4/3P4/5N2/PPP2PPP/4RRK1 b - - 0 16","m":"d8d5 e1e8","r":483,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"R0d48","f":"7k/5Rpp/4B1n1/p3B3/n7/8/6KP/1r6 b - - 3 34","m":"g6e5 f7f8","r":518,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"R0gNp","f":"1r4k1/5ppp/p3pb2/8/3P4/2Q5/1B3PPP/q5K1 w - - 0 25","m":"b2a1 b8b1 c3c1 b1c1","r":401,"t":"backRankMate endgame mate mateIn2 short"},{"i":"R0y35","f":"r3r1k1/ppB2ppp/2p1bb2/3q4/3P4/2PN3P/P1P1QPP1/R3R1K1 b - - 0 18","m":"e6h3 e2e8 a8e8 e1e8","r":445,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"R13OM","f":"2r5/1p3ppp/p3k3/3R2B1/8/8/PP3PPP/6K1 w - - 1 27","m":"d5d2 c8c1 d2d1 c1d1","r":561,"t":"backRankMate endgame mate mateIn2 short"},{"i":"R1Di5","f":"k4n1r/pp1b2pp/8/3pr2P/1P3bP1/PN3P2/2R1BK2/7R b - - 3 27","m":"d7a4 c2c8","r":578,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"R1HVU","f":"r4r1k/p6p/6p1/3QN3/8/2P5/P5PP/1R3q1K w - - 2 24","m":"b1f1 f8f1","r":509,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"R1LX8","f":"r4rk1/2p3p1/b1Pq3p/p7/Q3pp2/3P4/PPP2PPP/R1BR2K1 w - - 0 17","m":"d3e4 d6d1","r":482,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"R1k8k","f":"5rk1/pp2n1p1/1b2p2p/3pP3/PP4QN/8/3B2PP/2R2q1K w - - 2 25","m":"c1f1 f8f1","r":512,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"R1vUw","f":"2k1r2r/pppbqppp/2n5/1B1R4/2P1Qb2/2N5/PP3PPP/3R2K1 w - - 0 16","m":"e4f4 e7e1 d1e1 e8e1","r":555,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"R20le","f":"4r1k1/1qp2pp1/6np/8/Pp6/5Q2/1P3PPP/6K1 w - - 0 27","m":"f3b7 e8e1","r":462,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"R21Qc","f":"rQ4k1/5ppp/4p3/q2pPP2/8/2n3P1/6BP/1R5K b - - 4 30","m":"a8b8 b1b8 a5d8 b8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"R22We","f":"8/p1q4p/4kp2/4p2Q/p7/P7/1P3PPP/R1r3K1 w - - 1 33","m":"a1c1 c7c1 h5d1 c1d1","r":420,"t":"backRankMate endgame mate mateIn2 short"},{"i":"R2Bem","f":"r5kr/1bqn1ppp/p2p1b2/3P4/1p3P2/1BP1Q3/PP4PP/R3R2K b - - 2 19","m":"d7c5 e3e8 a8e8 e1e8","r":543,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"R2ehp","f":"8/pk3pp1/8/2pNp1b1/4P3/5PPQ/PPP1q3/1K5B w - - 1 25","m":"h3f1 e2f1","r":512,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"R2hzh","f":"4r3/2pk1pp1/1n1p3p/NP6/p1P5/8/2R2PPP/2R1r1K1 w - - 9 31","m":"c1e1 e8e1","r":430,"t":"backRankMate endgame master masterVsMaster mate mateIn1 oneMove"},{"i":"R2kEP","f":"4rbk1/1B3pp1/5n1p/3p1P2/5P2/4BQ2/6PP/2q4K w - - 0 25","m":"e3c1 e8e1 f3f1 e1f1","r":401,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"R2ope","f":"q5kr/p1p2ppp/8/4P3/4p3/B1P5/P5PP/1R3K1R b - - 3 18","m":"a8d5 b1b8 d5d8 b8d8","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"R2ycW","f":"2k3nr/ppp3p1/2n5/6pP/6B1/2P5/PP1N1qPK/R3R3 b - - 1 19","m":"c8b8 e1e8 c6d8 e8d8","r":422,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"R4Axb","f":"2r3k1/1p3ppp/p3b3/8/1PB5/P6P/1K3PP1/3R4 b - - 0 24","m":"c8c4 d1d8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"R4FxD","f":"2kr1r2/ppp1nR1Q/8/8/4P3/4b3/PPP3PP/1K1q1R2 w - - 0 20","m":"f1d1 d8d1","r":559,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"R4S3W","f":"3r3r/2R3pp/1k1q1pn1/8/8/1P2P1Q1/P4PPP/5RK1 w - - 3 23","m":"f1c1 d6d1 c1d1 d8d1","r":549,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"R4a9H","f":"2kr3r/1pp2ppp/p1B5/4P3/Pb2b3/8/1PP2PPP/RNB3K1 w - - 0 15","m":"c6e4 d8d1","r":475,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"R4uwT","f":"2kr4/pp2pp1p/2n3p1/8/8/P7/1R2NPPP/1R1r2K1 w - - 4 22","m":"b1d1 d8d1","r":499,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"R54BM","f":"2r5/R5pp/3Pk3/5p2/1B6/P3P3/1P3PPP/6K1 w - - 3 46","m":"a7g7 c8c1 b4e1 c1e1","r":485,"t":"backRankMate endgame mate mateIn2 short"},{"i":"R5byD","f":"6k1/5ppp/4p3/4P3/2b2P2/1pP1K1B1/rP4PP/3R4 b - - 0 33","m":"a2b2 d1d8","r":418,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"R5wHk","f":"2r2rk1/1p4pp/p4n2/8/3Np3/2R3Q1/P4PPP/2q3K1 w - - 0 27","m":"c3c1 c8c1","r":438,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"R6Ywy","f":"1r1rR1k1/5ppp/p5q1/1p2Q3/8/6P1/PP3PBP/4R1K1 b - - 7 25","m":"d8e8 e5e8 b8e8 e1e8","r":582,"t":"backRankMate endgame mate mateIn2 short"},{"i":"R6g7M","f":"2k1r3/ppp2ppp/6n1/5b2/1bP2p2/5Q2/PP2B1PP/R1Bq3K w - - 0 20","m":"e2d1 e8e1 f3f1 e1f1","r":556,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"R73bM","f":"3r4/p1p2pkp/6p1/4P3/2P2P2/2P5/P3q1PP/4R2K w - - 0 30","m":"e1e2 d8d1 e2e1 d1e1","r":485,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"R74Jc","f":"4r1k1/pp3pbp/4q1p1/3N4/8/1P3Q2/P4PPP/3R2K1 w - - 1 25","m":"d5c7 e6e1 d1e1 e8e1","r":590,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"R751Y","f":"5r1k/p3R1p1/1p5p/2pr4/2QN4/P1P5/1P3qPP/R6K w - - 2 31","m":"c4d5 f2f1 a1f1 f8f1","r":579,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"R75Hf","f":"4rr1k/p5pp/2p5/8/3b4/1P1Q1N1R/P1P1p1PP/4q2K w - - 0 36","m":"f3e1 f8f1","r":596,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"R8Kux","f":"6k1/2r2ppp/p3p3/1nP5/3P4/6P1/P3BP1P/1R4K1 b - - 4 26","m":"b5d4 b1b8 c7c8 b8c8","r":576,"t":"backRankMate endgame mate mateIn2 short"},{"i":"R8LNk","f":"5r1k/pp2q1pp/4pn2/8/2NP1Q2/1P5P/P4RP1/6K1 b - - 3 27","m":"f6d5 f4f8 e7f8 f2f8","r":576,"t":"backRankMate endgame mate mateIn2 short"},{"i":"R8Sc4","f":"r4r1k/ppp1b1pp/2n5/4p3/4P3/3B3Q/PPP3PP/R1B2q1K w - - 2 17","m":"d3f1 f8f1","r":445,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"R8ebs","f":"3r3k/p5pp/3B4/Pp6/5p2/6P1/4PP1P/b1R3K1 b - - 2 30","m":"d8d6 c1c8 d6d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"R9Fmk","f":"rn1q1rk1/pp3ppp/2p2b2/3p3b/3P4/5NP1/PPPNQPBP/R3R1K1 b - - 2 13","m":"f8e8 e2e8 d8e8 e1e8","r":434,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"R9Nf1","f":"2b1rr1k/1pp1q3/p2p3p/n2P1pp1/3b4/1B2P2P/PPQ2PPB/R3R1K1 w - - 0 20","m":"e3d4 e7e1 a1e1 e8e1","r":506,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"R9kRH","f":"6k1/pp3ppp/2p5/3p4/3Pr3/P6P/1PP2PP1/4RK2 b - - 1 23","m":"e4d4 e1e8","r":409,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"R9s5b","f":"8/5rkp/p5p1/1p2q3/2p5/P7/BPP5/1K2R3 w - - 0 39","m":"e1e5 f7f1 e5e1 f1e1","r":497,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RAHsL","f":"4r1k1/p4pp1/4r3/3p3p/2b3N1/P4P2/P1PR2PP/R5K1 w - - 0 23","m":"g4f2 e6e1 a1e1 e8e1","r":456,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RAIAW","f":"2n3k1/1p1n1ppp/4p3/3p4/P1rP4/Nq2PN2/5PPP/1R4K1 w - - 0 22","m":"b1b3 c4c1 f3e1 c1e1","r":424,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RAXBD","f":"2kqr3/pR3RQp/2p5/3n4/8/3P4/PPP2PPP/6K1 w - - 5 34","m":"b7a7 e8e1","r":578,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RB432","f":"r3r1k1/ppp2ppp/8/7q/2P1R3/1P4P1/P1Q2P2/4R1K1 b - - 2 31","m":"h5g6 e4e8 a8e8 e1e8","r":505,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RBWpp","f":"4r1k1/p2br1pp/2p2p2/3n4/2NP4/5B2/PP3PPP/2R1R1K1 w - - 6 23","m":"c4d6 e7e1 c1e1 e8e1","r":565,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RBloV","f":"3r3k/p4qpp/8/1pb1P3/2p5/2P5/PP4PP/R1B2R1K w - - 0 24","m":"f1f7 d8d1 f7f1 d1f1","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RCIsE","f":"r1b3k1/pp2Rppp/5n2/3B4/2Pn4/6P1/P1P2PP1/R5K1 b - - 4 23","m":"f6d5 e7e8","r":576,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RCM7U","f":"rn4k1/ppp2ppp/8/3P1b2/1bB5/2NN4/PP4PP/2K1R3 b - - 2 18","m":"b4c3 e1e8","r":451,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"RCmBM","f":"1rb5/p4pkp/3N2p1/3n4/3N4/8/P4PPP/4R1K1 w - - 0 26","m":"e1e5 b8b1 e5e1 b1e1","r":469,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RCnF5","f":"6rk/p5pp/2p5/8/8/6PP/P1qnQP2/4R1K1 b - - 4 32","m":"g8d8 e2e8 d8e8 e1e8","r":529,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"RCvG6","f":"r1bQr1k1/2p2ppp/p1p5/2n1P3/1p3B2/5N2/PPP2PPP/2KR3R b - - 0 14","m":"e8d8 d1d8","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"RCymi","f":"2r3k1/5ppp/pr6/8/2N5/2P1bP2/1PK3PP/3R3R b - - 0 25","m":"c8c4 d1d8","r":414,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RDESf","f":"5Q2/pp6/1kp1rp2/3p2p1/4r2P/1B6/PPP5/1K1R2q1 w - - 0 34","m":"d1g1 e4e1 g1e1 e6e1","r":423,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RDSJK","f":"2kr3r/pp1qb1Rp/2n5/7Q/8/N1p5/PP3PPP/R1B3K1 w - - 0 21","m":"b2c3 d7d1 h5d1 d8d1","r":545,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"REASr","f":"6k1/5ppp/8/1p1R4/1PpP4/2r1P3/7P/6K1 b - - 0 29","m":"c3e3 d5d8 e3e8 d8e8","r":494,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"REFVG","f":"4b3/4k2p/2p1p1p1/2PpQ1N1/2rP4/8/5PPP/6K1 w - - 8 38","m":"g5e6 c4c1 e5e1 c1e1","r":565,"t":"backRankMate endgame mate mateIn2 short"},{"i":"REbd1","f":"r5k1/2p3p1/1p3p1p/3Pp3/1PP1P3/8/2R3PP/7K w - - 1 33","m":"c2b2 a8a1 b2b1 a1b1","r":438,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RF3Ff","f":"4r1k1/pp3pp1/2n4p/1N1p4/8/2P5/PP3PPP/3R2K1 w - - 0 24","m":"d1d5 e8e1","r":477,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RFKnb","f":"r6k/4q1pp/6b1/p1p1p1Q1/1pBrP3/1P6/P1P2RPP/5RK1 b - - 3 26","m":"e7g5 f2f8 a8f8 f1f8","r":566,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RFMtT","f":"r1b3k1/pp3ppp/8/3R4/3P3B/1Q6/q3rPPP/5RK1 b - - 0 18","m":"a2b3 d5d8 e2e8 d8e8","r":541,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RGOBU","f":"4r1k1/p1r2ppp/Bp6/7P/2P1P1P1/8/PP3b2/1K1R3R b - - 0 26","m":"e8e4 d1d8 e4e8 d8e8","r":408,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RGQxi","f":"1Q3rk1/1p1R1ppp/8/5P2/8/p6P/1q3PP1/3R2K1 b - - 0 26","m":"f8b8 d7d8 b8d8 d1d8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"RHbzE","f":"4rbk1/1p1b1p2/pNp2Bpp/3p4/3P4/2PB2Q1/5PPP/1q4K1 w - - 0 25","m":"d3b1 e8e1","r":450,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"RHjq7","f":"2r3k1/5ppp/Q1P1n3/1B6/P2pn3/4r1P1/7P/5K2 b - - 3 38","m":"e6g5 a6c8","r":418,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"RHzGI","f":"r4rk1/pp3ppb/2n2b1p/2pq4/3p4/PP1P1NN1/2P1QPPP/1RB1R1K1 b - - 0 18","m":"f8e8 e2e8 a8e8 e1e8","r":506,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RI4jX","f":"5rk1/6pp/p2p2p1/3r4/1P1q4/1Q6/PP4PP/K2R4 w - - 2 37","m":"d1d4 f8f1 d4d1 f1d1 b3d1 d5d1","r":446,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"RI8B2","f":"3r4/kp5R/p1n1r1p1/8/8/8/PP3PPP/4R1K1 w - - 0 27","m":"e1e6 d8d1 e6e1 d1e1","r":576,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RIHJX","f":"6k1/pb5p/6p1/3p4/2pq4/2N2B2/PPP2rPP/3R3K w - - 0 29","m":"d1d4 f2f1","r":468,"t":"backRankMate endgame master masterVsMaster mate mateIn1 oneMove"},{"i":"RIYRv","f":"7k/p4rp1/1p5p/8/8/BP4QR/P1rp2PP/3R1q1K w - - 1 36","m":"d1f1 f7f1","r":575,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RIZ5P","f":"r3Q2k/pp4pp/8/q1b3Bn/3p4/1B4P1/PPP2P1P/4R1K1 b - - 4 21","m":"a8e8 e1e8 c5f8 e8f8","r":441,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RIglc","f":"6k1/2r2ppp/2p5/R7/Pp2P3/5P2/1P4PK/8 b - - 0 34","m":"c6c5 a5a8 c7c8 a8c8","r":432,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RIkUO","f":"6k1/p1p2ppp/6n1/1R6/2P1n3/8/3r4/rNK5 b - - 3 34","m":"g6f4 b5b8 d2d8 b8d8","r":464,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RIl8n","f":"1Qr3k1/3R1ppp/b3p3/8/8/2q2P2/B5PP/3R2K1 b - - 0 26","m":"c8b8 d7d8 b8d8 d1d8","r":500,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RJvv6","f":"6k1/p2r2p1/4p2p/8/2N1p3/1P6/PBP2PPP/4R1K1 w - - 4 32","m":"e1e4 d7d1 e4e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RK1kU","f":"1k1Qr1r1/ppp5/1q6/6pp/1P6/3R1P1P/P5P1/3R3K b - - 3 34","m":"e8d8 d3d8 g8d8 d1d8","r":434,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"RK6bd","f":"4r1k1/5ppp/8/2P5/3bR2N/R5P1/P4PKP/3r4 b - - 0 31","m":"e8e4 a3a8 e4e8 a8e8","r":434,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RKVW4","f":"2r5/6bk/1B2p3/1R1n4/P2Ppp2/8/6PP/4R2K w - - 0 38","m":"e1e4 c8c1 e4e1 c1e1","r":426,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RKde2","f":"4r1k1/ppp2ppp/5n2/6B1/P2p4/3P4/1Pq2PPP/RN1Q2K1 w - - 1 18","m":"d1c2 e8e1","r":532,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RLaxQ","f":"5r1k/2p1RQpp/p1q3r1/1p6/8/3P2P1/PPP2P1P/4R1K1 b - - 8 25","m":"f8f7 e7e8 c6e8 e1e8 f7f8 e8f8","r":591,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"RMLtU","f":"Q1r3k1/5ppp/8/1p6/8/4P3/5PPP/R5K1 b - - 0 29","m":"c8a8 a1a8","r":464,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"RMcfB","f":"1k1r1b1r/ppp2pp1/5n1p/8/1PP1pQ2/6B1/P4PPP/R2q2KR w - - 4 18","m":"a1d1 d8d1","r":451,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"RMn5n","f":"3q1Q1k/6pp/p3n3/1p6/2p2R1P/4r3/PPP3P1/5RK1 b - - 2 30","m":"e6f8 f4f8 d8f8 f1f8","r":519,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"RMy43","f":"1k3r2/pp1P2R1/7p/2N3bP/8/8/PPP5/1K6 w - - 6 40","m":"c5e6 f8f1","r":496,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"RN6kn","f":"2k5/pppr3p/1b3n2/8/8/N1P5/PP4PP/5R1K w - - 0 21","m":"f1f6 d7d1 f6f1 d1f1","r":429,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RNdvq","f":"1k3Q1r/ppp5/2p5/6q1/4P3/2P4B/PP4P1/5R1K b - - 0 31","m":"h8f8 f1f8 g5d8 f8d8","r":484,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RNgL4","f":"3r3Q/3kqp2/p7/1p1P4/2p1r2p/8/1PP3PP/3RR2K w - - 4 36","m":"h8h7 e4e1 d1e1 e7e1","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ROCcV","f":"6k1/pb6/2p3pQ/2bpqpB1/8/2P5/P5PP/R3r2K w - - 8 31","m":"a1e1 e5e1","r":435,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ROMke","f":"3r2k1/pp1r1p1p/4p1p1/2p1q3/3P2Q1/P5R1/1P3PPP/3R2K1 w - - 0 22","m":"d4e5 d7d1 g4d1 d8d1","r":547,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ROOg5","f":"r3r1k1/4qppp/p7/1p6/2pn4/1P1b4/P2QNPPP/R2BR1K1 w - - 0 21","m":"e2d4 e7e1 d2e1 e8e1","r":418,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"RORxo","f":"2r1r1k1/p4p1p/1p4p1/8/2Rq4/P3P3/Q4PPP/6K1 w - - 0 31","m":"c4d4 c8c1 d4d1 c1d1","r":463,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ROdf9","f":"r4rk1/1bq2ppp/pp1p1b2/3P4/2P2P2/4Q3/PP3PBP/2R1R1K1 b - - 4 18","m":"f8e8 e3e8 a8e8 e1e8","r":524,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ROqfo","f":"k1Qr4/pp4p1/1q4p1/3pPn1p/3P3P/P4N2/1P3PP1/2R2RK1 b - - 1 24","m":"d8c8 c1c8","r":409,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ROwMr","f":"1k1r4/ppp3p1/5p1p/3Q4/6P1/2P4P/PP3P2/1K2R3 b - - 0 27","m":"d8d5 e1e8 d5d8 e8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ROwYq","f":"6k1/5ppp/p6q/Pp2pP1n/1P1pP3/B1Q1b1PP/2P1R1K1/3R4 b - - 0 27","m":"d4c3 d1d8","r":513,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RP6gg","f":"r2qr1k1/pp3ppp/3p1N2/5b2/2P5/8/PP2QPPP/R1B1R1K1 b - - 0 15","m":"d8f6 e2e8 a8e8 e1e8","r":525,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RP7VZ","f":"6k1/R4ppp/4b3/p2p4/3P4/P3P2P/1r1N1PP1/6K1 b - - 2 23","m":"b2d2 a7a8 e6c8 a8c8","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RPDXw","f":"r4Q1k/pb4pp/1p2p3/8/3P4/1P5P/P1P3PK/5R2 b - - 0 30","m":"a8f8 f1f8","r":415,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RPXoX","f":"1r4k1/p4p1p/2Q3p1/2p1Pp2/3p4/5R2/Pr4PP/R6K w - - 1 25","m":"f3g3 b2b1 a1b1 b8b1","r":407,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"RPfX6","f":"6k1/5ppp/4p3/1p1pP3/1r3P2/R7/6PP/5NK1 b - - 0 28","m":"b4f4 a3a8","r":496,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RQ4IY","f":"5rk1/ppp3pp/6n1/2P2q2/3R4/1N6/PP4PP/3Q3K w - - 9 32","m":"d4d2 f5f1 d1f1 f8f1","r":593,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RQBTV","f":"Q2r2k1/5ppp/4p1q1/p1R5/5nN1/P6P/1PR2PPK/8 b - - 0 30","m":"d8a8 c5c8 a8c8 c2c8","r":543,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RQglr","f":"2kr4/pppbrBpp/8/2b5/5n2/2NP4/PPP3PP/R1B2R1K w - - 1 15","m":"f1f4 e7e1 f4f1 e1f1","r":482,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RQsc3","f":"1br3k1/pp3ppp/2Q5/8/8/1P2R1P1/P4PKP/2r1R3 b - - 0 24","m":"c1c6 e3e8 c8e8 e1e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RQsdq","f":"3r2k1/5ppp/2N1pn2/1p6/8/1P3Q2/5PPP/3q2K1 w - - 0 23","m":"f3d1 d8d1","r":453,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RSKpJ","f":"3r2k1/p2N1ppp/4p3/1R1n4/3P2P1/8/2r2P1P/4R1K1 b - - 0 33","m":"d8d7 b5b8 c2c8 b8c8 d7d8 c8d8","r":535,"t":"backRankMate endgame long mate mateIn3"},{"i":"RSeBg","f":"4rQ1k/p5pp/1p6/3Pb3/8/1P2P1qP/P5P1/1R3RK1 b - - 2 26","m":"e8f8 f1f8","r":568,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RSiGD","f":"2kr3r/1pp1Rppp/p1n1b3/3Q4/8/5N2/PPP2PPP/R1B3K1 w - - 1 14","m":"d5c5 d8d1 f3e1 d1e1","r":513,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RSz9u","f":"r3Q1k1/p1B2ppp/1p3b2/2pq4/8/5PP1/PP4KP/4R3 b - - 0 28","m":"a8e8 e1e8","r":477,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RU2D0","f":"1r4k1/5ppp/1R6/3Pp3/4P3/3b1P1P/6P1/R6K b - - 0 33","m":"b8b6 a1a8 b6b8 a8b8","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RUA9F","f":"7k/r5pp/1R4n1/3b2B1/3PP3/6P1/1P3P2/6K1 b - - 0 31","m":"d5e4 b6b8 g6f8 b8f8","r":566,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RUbvX","f":"2krr3/pp1b1ppp/2p1q3/8/8/1P6/PBP1QPPP/3RR1K1 w - - 0 21","m":"e2h5 e6e1 d1e1 e8e1","r":448,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RUihY","f":"6kn/5ppp/2r5/1p3PP1/p7/3q4/PP5P/K1RR4 w - - 0 34","m":"d1d3 c6c1","r":415,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"RUl7y","f":"1n1q3k/r3Q1pp/1pbp4/p5P1/3P4/7P/PPP2R2/1K3R2 b - - 0 29","m":"d8e7 f2f8 e7f8 f1f8","r":531,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"RUqS2","f":"3rQ1k1/pp3ppp/2n5/8/5Pb1/2P2NP1/Pq1N2BP/4R2K b - - 1 23","m":"d8e8 e1e8","r":487,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"RVF4d","f":"r5k1/1p3ppp/p1nr4/6P1/8/1N3PKB/PPP5/4R3 b - - 2 24","m":"a8e8 e1e8","r":593,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"RXBmV","f":"2r3k1/5ppp/1p2p3/8/1b2P3/P7/R4PPP/6K1 w - - 0 25","m":"a3b4 c8c1","r":545,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"RXWWy","f":"3r2k1/5ppp/4p3/Pp2P3/8/P7/5PPP/Q2q2K1 w - - 0 32","m":"a1d1 d8d1","r":578,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RYFSM","f":"1r4k1/5ppp/4p3/1p6/2RP4/1R6/5PPP/6K1 b - - 0 28","m":"b5c4 b3b8","r":575,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove rookEndgame"},{"i":"RYLLm","f":"3r2k1/2p1r1pp/1p5q/p2B3P/3P3P/2PK1Q2/PP6/5R2 b - - 3 31","m":"g8h8 f3f8 d8f8 f1f8","r":484,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"RYTTW","f":"4r1k1/1p3Rpp/p3qb2/2p2p2/8/5Q2/PP3PPP/2R3K1 w - - 0 25","m":"f7b7 e6e1 c1e1 e8e1","r":425,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"RYYVV","f":"2rr2k1/5pbp/ppB3p1/4p3/8/2P5/PP2bPPP/R1B1R1K1 w - - 0 23","m":"e1e2 d8d1 e2e1 d1e1","r":531,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RZARY","f":"5k2/p3ppb1/6pp/2pRPP2/2P3P1/1r3NKP/r7/3R4 b - - 3 36","m":"b3b8 d5d8 b8d8 d1d8","r":445,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RZK3L","f":"3r4/p1p2p2/2p1PQpk/3r4/8/2P5/P1P2PPP/R5K1 w - - 1 24","m":"e6e7 d5d1 a1d1 d8d1","r":588,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"RZUOx","f":"2r3k1/p4ppp/8/8/3p4/3q4/PP3PPP/3R2K1 w - - 0 25","m":"d1d3 c8c1 d3d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RZWyd","f":"7k/pp2r2p/3p4/5r2/3p4/3P4/PP4PP/5R1K w - - 0 30","m":"f1f5 e7e1 f5f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RZmZN","f":"r3r1k1/ppp2pp1/3p4/3P2qP/8/5P1Q/PPPR3P/1K4R1 w - - 1 20","m":"g1g5 e8e1 d2d1 e1d1","r":446,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"RZxQD","f":"r4r1k/1p4pp/p1n5/3Q4/P2p4/2P5/BP1N2PP/R1B2q1K w - - 5 21","m":"d2f1 f8f1","r":442,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Ra4nP","f":"r1b1r1k1/ppp2ppp/3p4/8/2Bq1R2/P1N5/1PP3PP/R1B4K w - - 0 16","m":"f4d4 e8e1 c4f1 e1f1","r":412,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RaL36","f":"4r1k1/p5pp/2B2n2/1p2p3/q1p4Q/P3P3/1P3PPP/2Rr2K1 w - - 0 27","m":"c1d1 a4d1","r":562,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Ram9a","f":"2r3k1/B4ppp/8/1N1p4/nb6/8/5PPP/1R4K1 w - - 0 27","m":"b1b4 c8c1","r":441,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Rb6jQ","f":"8/4k1pp/r4p2/2p1p3/1r6/2Q5/5PPP/R5K1 w - - 2 35","m":"a1a6 b4b1 c3c1 b1c1","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"RbCCa","f":"2k5/pp6/2pp1N1r/8/5r2/8/PPP5/1K3R2 w - - 8 34","m":"f1f4 h6h1 f4f1 h1f1","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RbUXl","f":"r4Q1k/6pp/8/p7/2P5/1P6/q5PP/5R1K b - - 2 25","m":"a8f8 f1f8","r":475,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"RbxtC","f":"k6r/pp3p2/4nP2/4r3/2K3R1/1P5R/P7/8 b - - 0 38","m":"h8h3 g4g8 e6f8 g8f8 e5e8 f8e8","r":579,"t":"backRankMate endgame long mate mateIn3"},{"i":"Rc05B","f":"3Q1rk1/p3Rppp/1p5q/2p5/8/6P1/PPP2PBP/4R1K1 b - - 0 21","m":"f8d8 e7e8 d8e8 e1e8","r":435,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RcI7m","f":"r3r1k1/1p3pbp/p1p2Pp1/2p5/8/2N2R2/PPPP1qPP/R1B4K w - - 0 17","m":"f3f2 e8e1 f2f1 e1f1","r":444,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RdLqL","f":"r2q2k1/ppp2p1p/6p1/2P5/2N1r3/2b5/P1PN1PPP/2BQ2K1 w - - 0 17","m":"d2e4 d8d1","r":444,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"RdNhP","f":"6k1/6p1/p2Rp2p/8/1p2BrPb/8/PPP4P/1K6 w - - 0 25","m":"d6d4 f4f1 d4d1 f1d1","r":482,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RdTkr","f":"3r3k/p1q3pp/2p2b2/2P5/5P2/3RQ1P1/PP3B1P/6K1 b - - 0 29","m":"d8d3 e3e8","r":536,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RdfGK","f":"4r3/5p1k/3q3p/p4pp1/1pp1r3/2P4R/PP1Q1PPP/3R2K1 w - - 0 34","m":"d2d6 e4e1 d1e1 e8e1","r":548,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Rdk7O","f":"r6k/4b1pp/p1R2r2/1p2p3/4P3/1Q6/PP4PP/R4q1K w - - 2 25","m":"a1f1 f6f1","r":469,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Re1cy","f":"3r1k2/4ppb1/R5pp/4P3/8/5NP1/5PKP/8 b - - 2 29","m":"d8d5 a6a8 d5d8 a8d8","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ReeDL","f":"2r3k1/1b3ppp/8/1N6/8/4P2P/1pB2PP1/3R2K1 b - - 0 29","m":"c8c2 d1d8","r":451,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Reih5","f":"1r4k1/p4ppp/R4p2/3p1b2/8/8/3q1PPP/2Q3K1 w - - 0 28","m":"c1d2 b8b1 d2c1 b1c1","r":451,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ReyiT","f":"4rk2/p3rpp1/7p/1PpB4/2P5/P2b4/5PPP/3RRK2 w - - 3 28","m":"f1g1 e7e1 d1e1 e8e1","r":503,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Rf1L0","f":"3rk2r/p3bppp/2p5/8/8/4R3/PP3PPP/R1B3K1 w k - 1 17","m":"b2b3 d8d1 e3e1 d1e1","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RfgkJ","f":"4r1k1/3b2bp/1p3pp1/6n1/1BpP4/P1P2N2/5PPP/R2B2K1 w - - 0 25","m":"f3g5 e8e1","r":458,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Rfmho","f":"4r1k1/1p3ppp/1p6/4Pp2/8/1PP5/1P3PPP/R5K1 b - - 0 20","m":"e8e5 a1a8 e5e8 a8e8","r":422,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Rfyiu","f":"6k1/p4ppp/1p6/8/5P2/6P1/PP1r2rP/2R2K2 b - - 6 35","m":"g2h2 c1c8 d2d8 c8d8","r":437,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RgCH2","f":"r2r2k1/pp3ppp/1np2bq1/8/2P1Q3/6P1/PB1P1P1P/1R2RBK1 b - - 0 20","m":"d8d2 e4e8 a8e8 e1e8","r":564,"t":"backRankMate master mate mateIn2 middlegame sacrifice short"},{"i":"RgTRu","f":"4R3/3k1p1p/p1pp3Q/8/P7/8/2P3PP/1r5K w - - 1 37","m":"e8e1 b1e1","r":427,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove queenRookEndgame"},{"i":"Rgmyn","f":"b5k1/5ppp/8/4P3/4pP2/R1p5/P4KPP/2Br4 b - - 2 29","m":"d1c1 a3a8","r":466,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"RgzsJ","f":"k2Q1r2/pp4b1/6p1/4P1P1/1B2K3/P6q/1PP2r2/3R4 b - - 11 40","m":"f8d8 d1d8 h3c8 d8c8","r":443,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Rh8Y7","f":"r5k1/5ppp/8/pq2p3/2Rp4/1P5P/6P1/2R4K b - - 1 33","m":"b5b3 c4c8 a8c8 c1c8","r":537,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"RhGI3","f":"6k1/5ppp/r1P1p3/8/1R3P2/6P1/P5KP/8 b - - 0 38","m":"a6c6 b4b8 c6c8 b8c8","r":450,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RhPcY","f":"8/2r2kp1/5p1p/8/pB6/3Q4/R5PP/7K w - - 2 38","m":"b4d6 c7c1 d3d1 c1d1","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RhVFr","f":"6k1/5ppp/p7/r3p3/P7/6PP/2R2PK1/8 b - - 1 36","m":"a5a4 c2c8","r":400,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"Ridgx","f":"4r1k1/5ppp/8/8/4Q3/2p3PP/R1P2PK1/8 b - - 0 36","m":"e8e4 a2a8 e4e8 a8e8","r":434,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Rim46","f":"r3B2k/ppp3pp/8/2p3B1/3q2P1/3P4/PPP2nKP/R2Q1R2 b - - 2 17","m":"f2d1 f1f8","r":599,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Rin1N","f":"4R3/5pkp/6p1/p1p5/8/qPPp4/P2R1PPP/6K1 w - - 1 34","m":"e8d8 a3c1 d2d1 c1d1","r":551,"t":"backRankMate endgame fork mate mateIn2 queenRookEndgame short"},{"i":"RipEE","f":"2r3k1/p4ppp/8/2P5/5P2/P1N1KQP1/7q/8 b - - 1 36","m":"c8c5 f3a8 c5c8 a8c8","r":407,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RipMC","f":"Q4r1k/6pp/1p6/p3PR2/q2P4/2P5/1P5P/5RK1 b - - 0 27","m":"f8a8 f5f8 a8f8 f1f8","r":445,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"RiySf","f":"2r3k1/1p3ppp/1P6/4p3/8/6P1/5KPP/R7 b - - 0 27","m":"c8c6 a1a8 c6c8 a8c8","r":512,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Rj6xw","f":"4r1k1/pp3p1p/2p1rnpB/3n4/2q3R1/1P6/PQ3PPP/R5K1 w - - 0 24","m":"g4c4 e6e1 a1e1 e8e1","r":597,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RjWCF","f":"r1b1rbk1/1pp1qpp1/p2p3p/3BP3/3Q4/6B1/PPP2PPP/3RR1K1 w - - 0 16","m":"e5d6 e7e1 d1e1 e8e1","r":521,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RjjvX","f":"3r1r1k/p3bPp1/1pn4p/8/8/P7/B1P2PPP/1RB1R1K1 w - - 1 22","m":"e1e6 d8d1 e6e1 d1e1","r":582,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Rjroj","f":"5k2/p3ppbp/bp4p1/8/8/2P5/PP1q1PPP/R2R2K1 b - - 1 18","m":"d2b2 d1d8","r":453,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Rjwtk","f":"2r1Q2k/1p4pp/4Q3/5p2/4p3/P3P2P/5PPK/3q4 b - - 0 34","m":"c8e8 e6e8","r":473,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Rk3wA","f":"4rQ1k/p1p3pp/3p4/5R2/2N4q/1PP4P/P5P1/4rRK1 b - - 2 27","m":"e8f8 f5f8","r":429,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Rk6wG","f":"r5k1/p1r2ppp/1p6/3R4/8/2P3P1/P4P1P/3R2K1 b - - 4 23","m":"a8c8 d5d8 c8d8 d1d8","r":453,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RkZLE","f":"1r4k1/5ppp/8/5P2/P7/1PbR3P/6P1/7K b - - 4 34","m":"b8b3 d3d8","r":490,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Rkg9c","f":"2r3k1/2P2ppp/1R2p3/3p4/3P4/8/1P1r1PPP/2R3K1 b - - 0 29","m":"c8c7 b6b8 c7c8 c1c8","r":531,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Rkjmn","f":"r1b3k1/ppp2ppp/1n6/8/1P2P3/PB1rpN2/6PP/3RR1K1 b - - 3 18","m":"d3b3 d1d8","r":433,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"RkmRO","f":"6k1/p4pp1/4p2p/3p4/3P1P2/PQ2PN2/6PP/2r1q2K w - - 0 33","m":"f3e1 c1e1","r":441,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Rl1If","f":"6k1/pR3ppp/1n6/3pPn2/1P1P4/r7/5K2/8 b - - 0 30","m":"f5d4 b7b8 b6c8 b8c8","r":594,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RlBc3","f":"6k1/R4ppp/8/5p2/2b5/3p3P/P2B2PK/1r6 b - - 2 28","m":"b1b2 a7a8 b2b8 a8b8","r":464,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RlJYw","f":"6k1/5ppp/p7/1p6/2n5/PPR4P/3r1PPK/8 b - - 2 31","m":"c4e5 c3c8 d2d8 c8d8","r":432,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RlMP0","f":"3rr1k1/p1p1qppp/2Q2n2/8/1P1b4/P3P3/5PPP/RN1R2K1 w - - 0 18","m":"e3d4 e7e1 d1e1 e8e1","r":533,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"RldFd","f":"3q1r2/p4pk1/4pnp1/1p1r2Bp/7Q/P1P4R/2P2PPP/1R4K1 w - - 0 23","m":"h3f3 d5d1 b1d1 d8d1","r":516,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RlgZg","f":"6r1/3kpr1p/p2pR1p1/B1pP4/R2b4/1P6/P1PP2PP/6K1 w - - 8 24","m":"g1h1 f7f1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RmFb6","f":"4k2r/pbqpp3/6Q1/2p1P3/8/5p2/PPP2P2/2K3R1 b - - 2 24","m":"e8d8 g6g8 h8g8 g1g8","r":584,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"RmLS5","f":"6k1/5pp1/p6p/2N5/2Pp4/2rP4/n4PPP/R5K1 w - - 2 29","m":"a1a2 c3c1","r":447,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RmSNG","f":"b2r2k1/5ppp/8/1R2p3/2p5/2P2P2/2NQ2PP/6K1 b - - 0 25","m":"d8d2 b5b8 d2d8 b8d8","r":509,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"RmUwn","f":"3rr1k1/pp3p2/2p1pp2/8/8/P6Q/1PP3PP/5R1K w - - 2 25","m":"f1f6 d8d1 f6f1 d1f1","r":405,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"RmWPq","f":"5r1k/1p3Qpp/1p1p4/4p1P1/r3P2P/8/PP3P2/2R2RK1 b - - 0 26","m":"f8f7 c1c8 f7f8 c8f8","r":484,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RmvD3","f":"3q1Q1k/6pp/8/ppp5/3p4/3P2Pb/PPP3N1/5RK1 b - - 3 28","m":"d8f8 f1f8","r":566,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Rnh1i","f":"2kr1b1r/ppp2p2/7p/4p3/4PpB1/1PP5/P4PPP/R2R2K1 b - - 1 17","m":"c8b8 d1d8","r":456,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"RnpDk","f":"r3r2k/5Rpp/p1p1B3/1p6/8/8/PPP3PP/5RK1 b - - 0 23","m":"e8e6 f7f8 a8f8 f1f8","r":460,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RoG6V","f":"2k2Q1r/pbpp3q/1p6/3PR1pn/2P5/1P4P1/P5BP/4RNK1 b - - 0 21","m":"h8f8 e5e8 f8e8 e1e8","r":533,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RoMGQ","f":"3r2k1/5rp1/p4RQP/3p4/4p3/1P6/PP1B4/K4q2 w - - 3 36","m":"f6f1 f7f1 d2c1 f1c1","r":566,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RoSDC","f":"2r3k1/5rpp/3Bp3/p1Pb4/B3p3/2Q5/P5PP/3q3K w - - 0 41","m":"a4d1 f7f1","r":479,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RoWtA","f":"8/8/3r4/P7/5nQ1/2k5/5PPP/6K1 w - - 3 39","m":"g4f4 d6d1","r":405,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"RolbQ","f":"1k1rr3/pp3pp1/2p1p1p1/Q7/3qN3/R4B2/PPP2PnP/1K5R w - - 0 21","m":"f3g2 d4d1 h1d1 d8d1","r":569,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"RowuL","f":"8/8/R5pk/1p3p2/8/2P2B2/Pr3PPP/6K1 w - - 0 31","m":"a6b6 b2b1 f3d1 b1d1","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RpfvS","f":"3r2k1/pp3ppp/2p1p3/7Q/3r4/8/PPP2PPP/R2q2K1 w - - 0 21","m":"a1d1 d4d1 h5d1 d8d1","r":431,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"RpxgF","f":"4rrk1/pp3qpp/8/3pp1n1/8/2PQ1N2/PP2R1PP/4R2K w - - 4 25","m":"f3g5 f7f1 e1f1 f8f1","r":559,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"Rq30O","f":"5rk1/1Q3p1p/1p1P2p1/p7/P2R4/4P3/2qn1PPP/5RK1 w - - 0 32","m":"f1d1 c2d1","r":441,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"RrLKg","f":"1r2qr1k/2p2B2/p2p3b/1p6/3pP3/3P2R1/PPP3PP/5R1K w - - 0 27","m":"f7e8 f8f1","r":434,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"RsCP8","f":"2R1Qqk1/p4ppp/4p3/3pP3/3Pb3/5N1P/PP3PP1/6K1 b - - 2 22","m":"f8e8 c8e8","r":513,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RsCSI","f":"4k2r/p1N1ppbp/6p1/N7/P7/4n3/1r3PPP/R2R2K1 b - - 1 20","m":"e8f8 d1d8","r":585,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"RsJ7w","f":"r4rk1/1p3bb1/p2p1q2/2pP1B2/2P3Q1/1P2R3/P1R2PPB/6K1 w - - 3 31","m":"e3h3 f6a1 c2c1 a1c1 g4d1 c1d1","r":587,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"RsJbU","f":"6k1/5p2/pp4p1/6p1/2r5/3RP3/P4PPP/6K1 w - - 0 32","m":"d3d6 c4c1 d6d1 c1d1","r":471,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RsYDk","f":"6k1/5pp1/7p/8/8/2Rb2NP/5PPK/4r3 b - - 6 32","m":"d3h7 c3c8 e1e8 c8e8","r":478,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RsZ0B","f":"3r4/8/b3p3/8/P4P2/8/k5PP/3qQ2K w - - 1 40","m":"e1d1 d8d1","r":417,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RsbFf","f":"4r2k/1p4pp/3p4/1p6/8/6P1/PPR3KP/8 b - - 1 28","m":"e8e5 c2c8 e5e8 c8e8","r":474,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RtLxH","f":"3r2k1/p3nppp/4p3/2N1P3/1P3P2/P7/4r1PP/4R2K w - - 0 28","m":"e1e2 d8d1 e2e1 d1e1","r":502,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RtR8A","f":"2Q3k1/5ppp/8/1r1prb2/p7/2R1PP1P/3K2P1/R7 b - - 0 32","m":"f5c8 c3c8 e5e8 c8e8","r":525,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RtgyH","f":"rn4k1/ppp2ppp/8/4r3/6b1/2N5/PPP1B1PP/2KR3R b - - 3 14","m":"g4e2 d1d8 e5e8 d8e8","r":549,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RtiwJ","f":"3rr3/p4pk1/1p6/8/2pn1R2/8/PPP3PP/R2B3K w - - 3 27","m":"c2c3 e8e1 f4f1 e1f1","r":491,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RtrO6","f":"4Q2k/1p4pp/p7/2P1q3/1P1p1R2/P2P2KP/5RP1/4r3 b - - 0 35","m":"e5e8 f4f8 e8f8 f2f8","r":500,"t":"backRankMate endgame fork mate mateIn2 queenRookEndgame short"},{"i":"Rtrd0","f":"6k1/5ppp/p7/8/2bP4/6P1/1r3P1P/2R1N1K1 b - - 3 23","m":"c4b5 c1c8 b5e8 c8e8","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Ru5Kr","f":"2r3k1/p1r2ppp/4p3/4Pn2/3p1P2/1N3Q2/PP3BPP/K1qR4 w - - 5 27","m":"b3c1 c7c1 d1c1 c8c1","r":417,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RuHBz","f":"6k1/7p/pRr1p1p1/r4pB1/2pP4/4P3/2R2PPP/6K1 w - - 0 30","m":"b6c6 a5a1 c2c1 a1c1","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RuLyw","f":"r5k1/3R2p1/7p/2p5/8/1p6/P1P2PPP/6K1 w - - 0 27","m":"a2b3 a8a1 d7d1 a1d1","r":441,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RuTWl","f":"1r1r2k1/1pQ2ppp/p3p1n1/P7/3qP3/1R3B2/1P3PPP/5RK1 w - - 1 24","m":"f1d1 d4d1 f3d1 d8d1","r":465,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RuUC4","f":"6k1/1R3ppp/p3p3/4P3/8/7P/P5PK/2r5 b - - 2 31","m":"c1c5 b7b8 c5c8 b8c8","r":509,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RuoyS","f":"8/pkp5/1p5R/3r4/4pBp1/8/PPP2PPP/6K1 w - - 5 32","m":"f4e3 d5d1","r":417,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Rviie","f":"6k1/5ppb/8/3R3P/3P4/4PP2/1prBBK2/q4N2 b - - 0 37","m":"b2b1q d5d8","r":563,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"RwAeS","f":"3r4/pp3r1Q/2p1k3/P3P3/8/4b3/1P4PP/5R1K w - - 0 32","m":"f1f7 d8d1 f7f1 d1f1","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RwXXo","f":"rnb4k/1p2b1pp/p5q1/2p5/4N3/4PQ1P/PPP3P1/R4RK1 b - - 2 21","m":"b8c6 f3f8 e7f8 f1f8","r":444,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"RwdVs","f":"r5k1/p1prB1pp/1p6/P3Pp2/2n2P2/1R6/6PP/2R4K w - - 0 24","m":"c1c4 d7d1","r":532,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RwyfD","f":"3r4/pkp3p1/1pn4p/8/8/P5Q1/2Pr1PPP/q4RK1 w - - 0 23","m":"f1a1 d2d1 a1d1 d8d1","r":484,"t":"backRankMate endgame mate mateIn2 short"},{"i":"RxdjT","f":"4r1k1/2Q2pp1/2p4p/2Pp4/4r3/P7/5PPP/q4RK1 w - - 0 23","m":"f1a1 e4e1 a1e1 e8e1","r":528,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Rxf7w","f":"r6k/1p3B2/p7/3pq3/6b1/8/P1Q3PP/1R5K w - - 0 26","m":"b1b7 e5e1","r":545,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"RxpVw","f":"4rrk1/ppp2ppp/5b2/n2n3Q/8/P2P1N2/1PP2PPP/RNB1q1KR w - - 3 16","m":"f3e1 e8e1","r":577,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Ry6R2","f":"2krr3/ppp2pbp/8/8/2b5/N1Pp4/P2P1PPP/R1B1R1K1 w - - 0 17","m":"a3c4 e8e1","r":484,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"RyzUz","f":"3r2k1/p4ppp/8/3R4/7P/P7/5P1P/2R3K1 b - - 0 25","m":"d8d5 c1c8 d5d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RzCUk","f":"8/5ppk/4p2p/1pR1P3/8/1P6/r5PP/7K w - - 0 35","m":"c5b5 a2a1","r":535,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"RzKAR","f":"r1r5/B2k1pp1/1Q5p/1P1q4/1b6/4NN2/5PPP/6K1 w - - 0 32","m":"e3d5 c8c1 f3e1 c1e1","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"RzNG2","f":"r5k1/pR1R1pp1/6p1/r7/2p5/4P3/5PPP/6K1 w - - 0 28","m":"d7f7 a5a1 b7b1 a1b1","r":430,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"RzPH4","f":"4r1k1/5ppp/8/pR6/P4P2/2NnRbP1/7P/6K1 b - - 0 28","m":"e8e3 b5b8 e3e8 b8e8","r":509,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S05GQ","f":"4r3/6pk/p1R4p/1p1Q2q1/3p4/P7/1P3PPP/6K1 w - - 2 32","m":"d5g5 e8e1","r":418,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"S0Bn3","f":"1k3q2/ppp2Q2/3p4/8/4P3/2NK4/PPP3P1/7R b - - 0 27","m":"f8f7 h1h8 f7e8 h8e8","r":502,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S0MXQ","f":"2r3k1/5ppp/2r5/p2Qp3/1p1nP3/3P2PP/PP4B1/K1qR1R2 w - - 6 30","m":"d1c1 c6c1 f1c1 c8c1","r":590,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"S114m","f":"5rk1/1rp1n1pp/N4p2/P3p3/4P3/2P1R3/q4PPP/R5K1 w - - 0 26","m":"a1a2 b7b1 e3e1 b1e1","r":585,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S1A3L","f":"7k/p1N3pp/1p3r2/7r/6K1/8/P4P2/4R3 b - - 4 43","m":"h5c5 e1e8 f6f8 e8f8","r":528,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S1sUZ","f":"5r1k/p4p1p/8/1b3PQ1/6R1/8/P3q1PP/2Rr3K w - - 5 32","m":"c1d1 e2d1","r":553,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"S1tL1","f":"4rQ1k/1p4pp/p1n3n1/5R2/8/P1N3P1/1q4BP/5RK1 b - - 3 26","m":"g6f8 f5f8 e8f8 f1f8","r":487,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"S2Mr1","f":"8/p5k1/2p1r1p1/5p2/1rP5/8/P4PPP/4R1K1 w - - 0 28","m":"e1e6 b4b1 e6e1 b1e1","r":595,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"S2g2m","f":"1k6/ppp2p2/3p1p1r/4p3/4P3/2P2P2/PP4Rp/2KB4 b - - 0 25","m":"h2h1q g2g8","r":404,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"S36AZ","f":"8/6pk/2p2p1p/2P1p3/3rP3/5R2/5PPP/6K1 w - - 0 32","m":"f3e3 d4d1 e3e1 d1e1","r":405,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"S3Hfw","f":"3r2k1/1pR2ppp/p2Qp3/8/5P2/P7/1P4PP/7K b - - 0 30","m":"d8d6 c7c8 d6d8 c8d8","r":516,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"S3RQ1","f":"2k3rr/1ppn4/p1q5/P7/8/3PQ2P/1P2R1P1/4R2K b - - 3 32","m":"c6d5 e3e8 g8e8 e2e8 h8e8 e1e8","r":556,"t":"backRankMate long mate mateIn3 middlegame sacrifice"},{"i":"S3Wya","f":"1r1Q2k1/5ppp/8/2p5/P2R4/1P1P3P/3q1PP1/1R4K1 b - - 2 34","m":"b8d8 d4d8","r":472,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"S3c32","f":"4r1k1/5ppp/2p2b2/1pNp1P2/1P3P2/2P1R3/r5PP/4R1K1 b - - 0 28","m":"e8d8 e3e8 d8e8 e1e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S3j7R","f":"4r1k1/1p3ppp/p7/3p4/3P3b/5PqP/P5P1/2R3RK b - - 5 28","m":"e8e2 c1c8 h4d8 c8d8 e2e8 d8e8","r":556,"t":"backRankMate endgame long mate mateIn3"},{"i":"S3paJ","f":"5rk1/6p1/3p2np/pp1Pp3/2p1P1Q1/2P5/PP4NP/3R1q1K w - - 2 27","m":"d1f1 f8f1","r":473,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"S3xxx","f":"5r1k/4p2p/2p3p1/3p4/Q7/P1P5/1P4PP/R4q1K w - - 2 28","m":"a1f1 f8f1","r":462,"t":"backRankMate endgame master mate mateIn1 oneMove queenRookEndgame"},{"i":"S471W","f":"6k1/pp3p1p/6p1/5p2/2rN4/8/P2b1PPP/3R2K1 w - - 2 31","m":"d1d2 c4c1 d2d1 c1d1","r":422,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S4EQS","f":"2krr3/pbpq2pp/1pp2p2/4p3/3PP3/2Q2NP1/PPP2P1P/1K1RR3 w - - 0 16","m":"d4e5 d7d1 e1d1 d8d1","r":465,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"S4MAv","f":"4r2k/pp2N1pp/2p5/4p3/4b3/7P/PP2r3/4RRK1 b - - 7 28","m":"e8e7 f1f8","r":554,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"S4bQT","f":"3r2k1/p3pp2/1p5p/4P1p1/8/1P2P3/P2r1PPP/R4RK1 w - - 1 20","m":"f1d1 d2d1 a1d1 d8d1","r":415,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"S4dNz","f":"6k1/4qpp1/2p1r2p/2Pp4/P2n4/1P6/3Q1PPP/3R3K w - - 3 33","m":"d2d4 e6e1 d1e1 e7e1","r":568,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S4eOC","f":"2r5/p3n2p/1p2pk2/8/5P2/7P/PP3PB1/K2R4 w - - 0 23","m":"d1d7 c8c1","r":498,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"S5TL7","f":"r3r2k/ppp2ppp/1b3q2/4nP2/2B1Q3/1NP5/PP3PPP/4RRK1 b - - 0 17","m":"e5c4 e4e8 a8e8 e1e8","r":473,"t":"backRankMate master masterVsMaster mate mateIn2 middlegame short"},{"i":"S5Wtv","f":"r1b1nk1Q/ppq1rpp1/4p1n1/6P1/2PP4/7R/PB1N3P/R5K1 b - - 5 22","m":"g6h8 h3h8","r":426,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"S5aOt","f":"2r1R2k/pp3Qpp/1b1P4/8/6qP/5N2/P5P1/7K b - - 8 37","m":"c8e8 f7e8","r":556,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"S5mig","f":"1k6/pppr4/4p3/1P2P3/5Pp1/PK1p2P1/4q3/R6R b - - 3 37","m":"d3d2 h1h8 d7d8 h8d8","r":588,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"S5xul","f":"4Q3/1p4bk/3p2pp/r2Ppp2/4P3/1q3P2/6PP/1R5K w - - 0 30","m":"b1b3 a5a1 b3b1 a1b1","r":541,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S66W6","f":"6k1/p4p2/np2p3/3pP3/3R4/P1r4Q/5PPP/6qK w - - 0 26","m":"h1g1 c3c1 d4d1 c1d1","r":515,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S6DSI","f":"r3N3/7p/1Pk2p2/8/8/1R2P3/5PPP/6K1 w - - 3 32","m":"e8f6 a8a1 b3b1 a1b1","r":437,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S6Jby","f":"3r2k1/pp3ppp/2P2n2/3r4/1P6/P4R2/5PPP/R1Qq2K1 w - - 1 24","m":"c1d1 d5d1 a1d1 d8d1","r":413,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S6kck","f":"4r1k1/1p2bp1p/4b1pB/p1p1P3/2Pr1Q2/5R2/PP3PPP/4R1K1 w - - 3 25","m":"e1e4 d4d1 e4e1 d1e1","r":496,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"S71AF","f":"r5k1/5np1/5bNp/3R1N2/4P3/2P2P2/1P4PP/7K w - - 5 37","m":"d5d7 a8a1 d7d1 a1d1","r":474,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S7DEy","f":"3r2k1/5ppp/4p3/7q/1PP2Pn1/3Q2P1/R6P/6K1 b - - 0 30","m":"d8d3 a2a8 d3d8 a8d8","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S7FlX","f":"4r3/8/7k/3p4/P1bP1PQp/2P1q3/P5PP/R5K1 w - - 1 34","m":"g1h1 e3e1 a1e1 e8e1","r":588,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"S7icS","f":"2r1n1k1/1br5/p2p3Q/1p1PpNp1/1b2P1q1/1P4R1/1P3PPP/R5K1 w - - 0 30","m":"g3g4 c7c1 a1c1 c8c1","r":539,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"S8AV5","f":"3r2k1/5ppp/6nq/1B2p3/4P2P/1bP1N3/1P1R1PP1/2K5 b - - 0 26","m":"g6f4 d2d8","r":552,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"S8Isd","f":"r5k1/pp1n2p1/1qn1prp1/3p4/3P3Q/2P2N2/PP4PP/R1B2R1K w - - 0 18","m":"f3g5 f6f1","r":569,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"S8d9g","f":"3r1r2/4np2/2p2k2/pp2pPR1/4P3/P6R/BPP5/1K6 w - - 1 30","m":"g5h5 d8d1","r":550,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"S8hp5","f":"R7/p1p2kp1/2pp3p/8/3r4/8/PP3PPP/6K1 w - - 0 22","m":"a8a7 d4d1","r":401,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"S90dc","f":"1k6/ppp5/8/4PP2/5r1p/3R3P/1P6/7K b - - 0 37","m":"f4f5 d3d8","r":478,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"S9BVG","f":"3rk2r/4b1pp/p7/1p2Q3/4q3/1P6/1P3PPP/R1B3K1 w k - 0 23","m":"e5e4 d8d1 e4e1 d1e1","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"S9U4g","f":"2r3k1/1R3ppp/1p2p3/b2p4/3P3P/3PBP2/5P2/3K4 b - - 5 27","m":"c8c3 b7b8 c3c8 b8c8","r":486,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SAIUv","f":"4r3/1p1k2p1/p1n1r2p/P1B2p2/2Pp4/8/1P1R1PPP/3R2K1 w - - 0 34","m":"c5d4 e6e1 d1e1 e8e1","r":538,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SAQyE","f":"4r1k1/2pq1ppp/p2p4/1p1Pr3/3Q4/2P5/PP3PPP/R3R1K1 w - - 3 21","m":"a1d1 e5e1 d1e1 e8e1","r":526,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SB3e7","f":"4r1k1/ppB3bp/5pp1/3N4/8/3q4/5PPP/3R2K1 w - - 0 27","m":"d1d3 e8e1","r":417,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SBXbS","f":"r5k1/q4ppp/1p3n2/nB1Q4/8/2P1R3/PP3PPP/4R1K1 b - - 0 20","m":"f6d5 e3e8 a8e8 e1e8","r":468,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SBa2w","f":"3r2k1/5p1p/p5p1/1p1q4/1P6/8/P1r1QPPP/3R2K1 w - - 0 25","m":"e2c2 d5d1 c2d1 d8d1","r":589,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SCCoI","f":"rn1Q2k1/p1q2ppp/bpp5/4p3/N3P3/1P2BPP1/P1P4P/3R2K1 b - - 0 23","m":"c7d8 d1d8","r":437,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SCD2Q","f":"8/p3p1kp/4p1p1/2qpP3/6Q1/5P1R/b5PP/R1r4K w - - 3 28","m":"a1c1 c5c1","r":472,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"SCJdp","f":"4r1k1/5ppp/1ppR4/4p3/P3Pn2/2P2P1P/2B2P1K/8 b - - 2 29","m":"e8e6 d6d8 e6e8 d8e8","r":497,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SChGQ","f":"rn1qr1k1/1pp2ppp/p2p4/3P2b1/3N4/8/PPP1QPPP/1K1RR3 b - - 1 13","m":"b7b5 e2e8 d8e8 e1e8","r":519,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SCr7R","f":"4r1k1/pp3p1p/8/5bp1/8/1BP5/PP3PPP/3R2K1 w - - 0 26","m":"d1d5 e8e1","r":529,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SDOvn","f":"r1b2rk1/ppp3p1/3b3p/4N3/4Q3/8/PPP3PP/R1B1Rq1K w - - 2 17","m":"e1f1 f8f1","r":458,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SE106","f":"4r1k1/pRp2ppp/1b6/8/8/6KP/P5P1/8 b - - 0 27","m":"e8e2 b7b8 e2e8 b8e8","r":425,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SEbZb","f":"6k1/5ppp/1p2p3/pP6/Pp1P4/r3P1P1/2R2P1P/6K1 b - - 3 27","m":"a3a4 c2c8","r":424,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"SEphR","f":"1r4k1/1q3ppp/3R4/4p3/4P3/1r5P/1P1Q1PP1/1R4K1 b - - 0 26","m":"b7e4 d6d8 b8d8 d2d8","r":571,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SFBWJ","f":"3R4/1p4kn/p3r1B1/2p5/8/8/PPP2P2/1K6 w - - 2 34","m":"g6h7 e6e1 d8d1 e1d1","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SFNha","f":"4r3/p4R2/kp5n/8/8/6B1/PPP3PP/7K w - - 3 31","m":"f7f2 e8e1 f2f1 e1f1","r":425,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SFYxi","f":"3q2k1/pp3ppp/8/3Qp3/3P4/8/1B3PPP/2R3K1 b - - 0 27","m":"d8d5 c1c8 d5d8 c8d8","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SFwVh","f":"rn4k1/p4ppp/2p1r3/1N1p4/8/2R3P1/P4P1P/3R2K1 b - - 5 26","m":"c6b5 c3c8 e6e8 c8e8","r":534,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SFzQE","f":"6k1/p4ppp/1p6/3R4/8/1P5P/P4PPK/2r5 b - - 2 27","m":"c1c7 d5d8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"SG0Ya","f":"r3r1k1/ppp2ppp/2n5/2Q3q1/8/2N2N2/PP3PPP/R2b2K1 w - - 0 16","m":"f3g5 e8e1","r":516,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SG8mI","f":"r5k1/3R1ppp/p2R3n/8/8/4PbP1/r2P3P/6K1 b - - 1 25","m":"f3h5 d7d8 a8d8 d6d8","r":404,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SGG2r","f":"r1b2Q1k/pp4pp/3b4/8/8/P5P1/1P1qB2P/R4RK1 b - - 2 28","m":"d6f8 f1f8","r":424,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SGKMd","f":"6k1/5ppp/2r5/p2bPP2/6P1/P2pB1KP/2r2R2/1R6 b - - 5 32","m":"c2f2 b1b8 c6c8 b8c8","r":591,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SGN5h","f":"6k1/p3Rr2/1p5R/1N1B4/2P2p2/8/Pr4PP/7K w - - 2 31","m":"e7f7 b2b1","r":523,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SGVnN","f":"r1b2r1k/ppp2Bpp/1b6/8/5B2/2N5/PP3PPP/R2R2K1 b - - 0 16","m":"f8f7 d1d8 f7f8 d8f8","r":586,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SGXgg","f":"6k1/5ppp/4p3/pp1r4/5B2/2R4P/PPn2PP1/6K1 b - - 1 30","m":"c2b4 c3c8 d5d8 c8d8","r":532,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SGw7C","f":"2r3k1/1p2nppp/p1n1q3/4p3/1P6/P2QP1PP/1B3PB1/3R2K1 b - - 5 29","m":"c8d8 d3d8 c6d8 d1d8","r":581,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"SIEB0","f":"2r1Q2k/2q3pp/p7/1p6/3N4/8/PKP3PP/4R3 b - - 2 29","m":"c8e8 e1e8","r":444,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SIalB","f":"2rr2k1/5ppp/bppRp1n1/8/2P2P2/1B2K2N/PP4PP/3R4 b - - 2 19","m":"g6e7 d6d8 c8d8 d1d8","r":596,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SIkAV","f":"5bk1/1p3ppp/p2p4/P2Pr3/1P6/5NQ1/5PPP/2B1q1K1 w - - 1 34","m":"f3e1 e5e1","r":440,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SItyr","f":"r1Q4k/6pp/P7/2p5/1q1p1R2/6P1/6PP/5R1K b - - 0 31","m":"a8c8 f4f8 c8f8 f1f8","r":434,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"SJlVQ","f":"1k1r4/pp2b1Rp/4Bp2/4p3/7P/5N2/PPP1nP2/2K5 w - - 1 23","m":"c1b1 d8d1","r":565,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SJwSu","f":"2r3k1/1R3ppp/p3p3/4PbP1/4pP1P/2P1B3/P1P2K2/8 b - - 0 22","m":"c8c3 b7b8 c3c8 b8c8","r":411,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SK4R0","f":"7k/8/3Pr3/1p6/8/8/PPb5/K1R5 w - - 0 48","m":"c1c2 e6e1 c2c1 e1c1","r":438,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SK72r","f":"5r2/pp4k1/4Q3/2pp4/3p4/4b3/PPP3PP/6K1 w - - 2 35","m":"g1h1 f8f1","r":504,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"SK9sh","f":"2r1r2k/5pp1/5n1p/p3Q3/2P2P2/P2B2R1/1qP3PP/4R2K w - - 2 33","m":"e5b2 e8e1 d3f1 e1f1","r":567,"t":"backRankMate hangingPiece mate mateIn2 middlegame short"},{"i":"SKSxJ","f":"6k1/R5pp/p7/1r1pr3/8/P7/5PPP/1R4K1 w - - 6 37","m":"b1b5 e5e1","r":452,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"SKnhu","f":"r1b1r1k1/1p3ppp/pb1B1n2/3N4/1P6/6P1/P4PBP/R3R1K1 b - - 2 21","m":"f6d5 e1e8","r":532,"t":"backRankMate hangingPiece master mate mateIn1 middlegame oneMove"},{"i":"SL0H3","f":"k7/pp3R2/5p2/8/2P3P1/P3r3/6K1/5r2 b - - 4 39","m":"f1f3 f7f8 e3e8 f8e8","r":593,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SLOZm","f":"4r1k1/p3qpp1/2p5/8/7R/2P2NQ1/PP3PP1/1b4K1 w - - 3 25","m":"g3h2 e7e1 f3e1 e8e1","r":464,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"SMGcE","f":"2r3k1/5ppp/p3b3/1p1pN3/3P4/1P6/1P3PPP/4R1K1 w - - 0 23","m":"e1e2 c8c1 e2e1 c1e1","r":414,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SMpK2","f":"3rr1k1/p3bp1p/4p1pB/1P2P3/2p2Q2/2P2N2/1P3PPP/R2q2K1 w - - 3 26","m":"a1d1 d8d1 f3e1 d1e1","r":542,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SN4DE","f":"br4k1/5ppp/4p3/8/BP6/P2r4/3R1PPP/3R2K1 b - - 0 29","m":"d3a3 d2d8 b8d8 d1d8","r":436,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SNQ5V","f":"2r3k1/p4ppp/4p3/2r5/2R3Q1/1N6/P4PPP/2q3K1 w - - 0 24","m":"c4c1 c5c1 b3c1 c8c1 g4d1 c1d1","r":498,"t":"backRankMate endgame long mate mateIn3"},{"i":"SNfA6","f":"4r2k/p1pQ1pp1/5b1p/2p4P/2Ppr3/1R3N2/PPb2PB1/K3q1R1 w - - 1 28","m":"g1e1 e4e1 f3e1 e8e1","r":550,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SOm9h","f":"8/kp5p/p2p2p1/QP1r4/2P5/8/5PPP/R2q2K1 w - - 5 35","m":"a1d1 d5d1 a5e1 d1e1","r":519,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"SPYim","f":"4rk2/pb2q3/1p5p/1N1p4/2pP4/Q7/PP3PPP/2R3K1 w - - 2 27","m":"b5d6 e7e1 c1e1 e8e1","r":472,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"SPfog","f":"3r2k1/p4npp/4R3/8/2P4P/3N4/PP3PP1/6K1 b - - 0 34","m":"d8d3 e6e8","r":466,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SPg3W","f":"5rk1/1p3rpp/p1p5/3pP3/3Pp1b1/6R1/PP4PP/2Q1Rq1K w - - 0 26","m":"e1f1 f7f1 c1f1 f8f1","r":582,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"SPlYW","f":"1n4k1/p4ppp/8/8/3P4/P7/3KRP2/2r3R1 b - - 0 40","m":"c1g1 e2e8","r":428,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SPmWB","f":"4r2k/p5p1/1p1q3p/2p5/8/2P5/PP3PPP/3R2K1 w - - 0 27","m":"d1d6 e8e1","r":583,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"SPuY0","f":"7k/pR3ppp/2pb4/2P5/8/P5PP/4KP2/4n1r1 b - - 8 35","m":"d6c5 b7b8 c5f8 b8f8","r":468,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SQSRU","f":"2kr3r/pp4pp/2nQ4/4pb2/8/2P1R3/PPP2PPP/6K1 w - - 1 21","m":"d6c5 d8d1 e3e1 d1e1","r":493,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SQVBv","f":"6k1/5pp1/p5p1/2PQ4/1r6/4RP2/P5PP/7K w - - 0 30","m":"e3e4 b4b1 d5d1 b1d1 e4e1 d1e1","r":553,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"SQdnT","f":"1n1q1rk1/Q4pp1/2p2n1p/8/4P3/2b5/PPP2PPP/R1B3K1 w - - 0 14","m":"b2c3 d8d1","r":565,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SQewc","f":"5rk1/pp1n1r1p/2p3p1/2b5/2P1RB2/1B6/PP4PP/4R2K w - - 3 25","m":"f4h6 f7f1 e1f1 f8f1","r":585,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SRWL4","f":"3R4/1p3ppk/1N5p/pP2n2B/2P1P3/P7/2r2PPP/6K1 w - - 1 27","m":"d8b8 c2c1 h5d1 c1d1","r":595,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SRe0E","f":"4n3/N5kp/p5p1/1p3pq1/8/1B5Q/PP3PPP/R1r3K1 w - - 3 30","m":"a1c1 g5c1 b3d1 c1d1","r":598,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SRl9D","f":"6k1/3b1p1p/p5p1/3p4/3Nr3/P1P5/5PPP/1R4K1 w - - 0 28","m":"b1b7 e4e1","r":472,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SSMsa","f":"4r2k/p5pp/1p6/2p5/2P1Q3/qP4PK/P2R1P1P/8 b - - 0 32","m":"e8e4 d2d8 e4e8 d8e8","r":405,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"SSRdW","f":"r3R1k1/5ppp/2n5/5qPP/1p1p1B2/rPn2P2/P2Q4/K1N1R3 b - - 8 29","m":"a8e8 e1e8","r":529,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SSoza","f":"5r1k/1p4pp/p5n1/6b1/2QNR3/2P5/PP4PP/5q1K w - - 8 26","m":"c4f1 f8f1","r":441,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SSwr1","f":"5rk1/pp1r1pp1/2p1pn1p/8/1PP5/P4Q2/4RPPP/3qR1K1 w - - 0 23","m":"e1d1 d7d1 e2e1 d1e1","r":525,"t":"backRankMate endgame mate mateIn2 short"},{"i":"STWVV","f":"4r1k1/p5p1/b1p2p2/Pp1p1N2/1P2rP2/7R/3B1bPP/5R1K w - - 3 28","m":"f1f2 e4e1 d2e1 e8e1 f2f1 e1f1","r":575,"t":"backRankMate long mate mateIn3 middlegame sacrifice"},{"i":"STXvM","f":"4r3/6kp/p1p3p1/4r3/8/3p4/Q4PPP/3R2K1 w - - 6 38","m":"a2a6 e5e1 d1e1 e8e1","r":505,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"STjbt","f":"5rk1/R4ppp/8/2p1Q3/4P3/1q6/1P3PPP/2Rr2K1 w - - 1 25","m":"c1d1 b3d1","r":476,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SUA6q","f":"r2r2k1/6p1/p3p3/1p3p2/4R1Q1/8/PP3PPP/6K1 w - - 0 22","m":"g4h3 d8d1 e4e1 d1e1","r":438,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"SUCfc","f":"6k1/q4p2/6pp/4Q3/4P3/8/5PPP/q5K1 w - - 0 35","m":"e5a1 a7a1","r":441,"t":"backRankMate endgame mate mateIn1 oneMove queenEndgame"},{"i":"SUZdb","f":"4Q2k/6pp/5p2/7q/P7/5PP1/5P2/4R1K1 b - - 0 36","m":"h5e8 e1e8","r":535,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SUcRE","f":"6k1/5ppp/4p3/1P6/3r4/2r5/5PPP/3R2K1 w - - 0 30","m":"d1d4 c3c1 d4d1 c1d1","r":458,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SUkEg","f":"8/5pp1/1R2pk1p/r3r3/8/8/5PPP/R5K1 w - - 0 34","m":"a1a5 e5e1","r":433,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"SUqgH","f":"6k1/2q2ppp/1pQ1b3/8/8/5N2/PP3PPP/3R2K1 b - - 0 22","m":"c7c6 d1d8 c6e8 d8e8","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SUrof","f":"3r2k1/p1q2pbp/1p4p1/8/8/P4N2/5PPP/2Q3K1 w - - 0 26","m":"c1c7 d8d1 f3e1 d1e1","r":484,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SUtVj","f":"2r3k1/4r1pp/5p2/1P6/3p4/5B2/5PPP/4R1K1 w - - 0 28","m":"e1e7 c8c1 f3d1 c1d1 e7e1 d1e1","r":572,"t":"backRankMate endgame long mate mateIn3"},{"i":"SUw0b","f":"4r1k1/5pp1/2p2n1p/1p1p4/3q1P2/pP4B1/P4NPP/3R2K1 w - - 0 31","m":"d1d4 e8e1","r":411,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SUybH","f":"3rr1k1/ppp2pp1/5n1p/8/2B5/1Q2N3/PPP2PPR/1K1q4 w - - 2 21","m":"e3d1 d8d1","r":500,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SV3uX","f":"4r1k1/p3Qppp/8/8/8/1P4bP/P4P2/3R2K1 b - - 0 25","m":"e8e7 d1d8 e7e8 d8e8","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SVFi2","f":"r1b3k1/q4ppp/2p1p3/ppB1P3/N3n1PP/4KN1R/PPP5/3R4 b - - 1 25","m":"e4c5 d1d8","r":507,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SVJ4R","f":"1r4k1/2qrbppp/3p1B2/2p5/8/1P3NP1/P3QPKP/R3R3 b - - 0 21","m":"e7f6 e2e8 b8e8 e1e8","r":574,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"SVKnw","f":"1r3rk1/2R4p/1p2p1pQ/p2pP3/8/P7/6PP/3R1q1K w - - 2 28","m":"d1f1 f8f1","r":503,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"SVxCa","f":"r4rk1/2p2ppp/2p5/p2p1q2/8/2P1QbP1/PP3P1P/R3R1K1 b - - 2 19","m":"f8e8 e3e8 a8e8 e1e8","r":508,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SWDhd","f":"8/5pkp/6p1/3r4/2n5/4P3/5PPP/2R3K1 w - - 0 28","m":"c1c4 d5d1","r":411,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"SWyGr","f":"4r1k1/ppp2ppp/8/8/4q3/P7/1PQ2PPP/R5K1 w - - 0 20","m":"c2c7 e4e1 a1e1 e8e1","r":555,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"SXIIs","f":"5rk1/pp5p/2p3p1/2bp4/4p3/1PN5/PB1PQ1PP/5q1K w - - 7 27","m":"e2f1 f8f1","r":445,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SXVDo","f":"3r2k1/5ppp/pp2p3/8/3Q4/1P5P/P4PP1/2R3K1 b - - 0 27","m":"d8d4 c1c8 d4d8 c8d8","r":424,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SXb7W","f":"R5k1/5ppp/8/1b1p4/3P4/p7/5PPP/2r2BK1 b - - 1 37","m":"b5e8 a8e8","r":456,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"SXsvF","f":"7k/1bp3pp/1p6/2q1Pr2/1n6/1P6/r1P1N1PP/1KQR3R b - - 3 24","m":"c5a5 d1d8 f5f8 d8f8","r":521,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SY1BI","f":"1r4k1/5ppp/2p5/2b5/2P5/5Q2/4q1PP/7K w - - 0 34","m":"f3e2 b8b1 e2d1 b1d1","r":596,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SYa11","f":"2Q2r1k/1pp3pp/8/1P6/p1Pq4/P2P3P/4RPP1/4R1K1 b - - 0 30","m":"f8c8 e2e8 c8e8 e1e8","r":486,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"SYpzH","f":"r1br4/p1k5/1p2p3/4Pp2/8/6Q1/PPB2PPP/3q2K1 w - - 0 27","m":"c2d1 d8d1","r":502,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Sa8on","f":"3n1r1k/ppq4p/4Q3/3RPpNp/8/1P6/P4PPP/6K1 w - - 1 32","m":"e6h6 c7c1 d5d1 c1d1","r":487,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SahbF","f":"2r3k1/p4ppp/8/3p1P2/2r1n3/8/PP1NR2P/4R1K1 b - - 2 27","m":"e4d2 e2e8 c8e8 e1e8","r":546,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Sb6i1","f":"4r1k1/1p3pp1/p3N2p/7B/6Q1/P7/5PPP/2rRq1K1 w - - 3 28","m":"d1e1 c1e1","r":501,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SbDHX","f":"2r3k1/Q4ppp/4p3/1p2P3/8/8/P1r2PPP/Rq4K1 w - - 0 25","m":"a1b1 c2c1 b1c1 c8c1","r":537,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"SbFx9","f":"rnbR2k1/pp3ppp/8/2p5/4r3/5N2/PPP3PP/2K2B1R b - - 1 18","m":"e4e8 d8e8","r":574,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"SbVvl","f":"5r1k/p5pp/6p1/4r3/p4Q2/2P5/PP3P1P/2KR4 b - - 0 34","m":"f8f4 d1d8 e5e8 d8e8 f4f8 e8f8","r":400,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"SbYi3","f":"4r1k1/1p6/p3ppq1/3p2p1/3P4/1P4R1/P4PPP/2Q3K1 w - - 0 36","m":"c1c7 g6b1 c7c1 b1c1","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SbpHV","f":"4r3/1b4kp/p3q1p1/1p1p1p2/3P4/1PN5/P2Q1PPP/2R3K1 w - - 2 25","m":"c3d1 e6e1 d2e1 e8e1","r":536,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SbpPQ","f":"6k1/2r2p1p/1R1R2p1/r1p5/1p6/P7/1P3PPP/6K1 w - - 0 26","m":"a3b4 a5a1 d6d1 a1d1","r":507,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ScRFN","f":"r1b4k/p1ppq1pp/1p6/4P1Q1/1nB1P3/2N5/PPP3PP/5RK1 b - - 1 16","m":"e7g5 f1f8","r":520,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ScRyb","f":"r1b1r1k1/ppp2ppp/8/2b5/3p1q2/1B4Q1/PPP3PP/RN5K w - - 0 16","m":"g3f4 e8e1 f4f1 e1f1","r":470,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SczXs","f":"2rQ1k1r/1p2npp1/p2R3p/2p4q/4PB2/5NP1/PPP2P1P/2K4R b - - 2 17","m":"c8d8 d6d8","r":404,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SdArt","f":"3r1R1k/p5pp/8/r2p4/3P4/PQ2p2P/1P2P1q1/3K1R2 b - - 1 30","m":"d8f8 f1f8","r":576,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SdDGO","f":"6k1/5ppp/3rQ3/1p2p3/2p1P3/2P5/rP3PPP/1R1R2K1 b - - 0 27","m":"d6e6 d1d8 e6e8 d8e8","r":431,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SdUQP","f":"2q3k1/5ppp/Q3p3/2PpP1PP/p7/2B1K3/r4P2/1R6 b - - 3 34","m":"c8a6 b1b8 a6c8 b8c8","r":408,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Sdb5W","f":"4r3/4rp2/2P2kp1/p1R5/P7/5B2/5PPP/2R3K1 w - - 4 38","m":"c6c7 e7e1 c1e1 e8e1","r":462,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Se9Tb","f":"4r1k1/5p2/p3r2p/1p1Q2p1/8/5P2/P5PP/2qR3K w - - 0 35","m":"d1c1 e6e1 c1e1 e8e1","r":461,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"SeDqf","f":"3R4/r1p2pkp/5p2/PR2p3/P7/2P5/2r2PPP/6K1 w - - 4 28","m":"b5b8 c2c1 d8d1 c1d1","r":479,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SexYg","f":"2kr3r/ppp3pp/4p3/2b1P3/2p1nP2/P1N2R2/1P4PP/R1B4K w - - 1 20","m":"c3e4 d8d1 f3f1 d1f1","r":543,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SfEi2","f":"r3r1k1/p1p2ppp/1bp2q2/8/4p3/1P1P4/P2PQPPP/RN2R1K1 b - - 0 15","m":"e4d3 e2e8 a8e8 e1e8","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SfTf8","f":"7k/6pp/pp6/2p5/1P3P2/3rP1P1/5K1P/2R5 b - - 0 38","m":"c5b4 c1c8 d3d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SfiDj","f":"6k1/3q1p2/p1pp3p/1p4p1/3P2QN/P3r3/1P3PPP/1b4K1 w - - 0 32","m":"g4d7 e3e1","r":401,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Sg3Qd","f":"3r2k1/2p3pp/1pn5/p7/4q3/Q7/PP3PPP/4R1K1 w - - 0 24","m":"e1e4 d8d1 e4e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SgI3K","f":"k2r4/pp6/8/2pQ2p1/2P2p2/8/PPKB2qr/3RR3 b - - 6 36","m":"d8d5 e1e8 d5d8 e8d8","r":587,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SgKSu","f":"r3r3/1p3ppQ/p2kqn2/3p2B1/3P4/2N5/PP3PPP/R5K1 w - - 1 18","m":"h7g7 e6e1 a1e1 e8e1","r":495,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"SgM1l","f":"3r2k1/8/P4p1p/4p3/8/2Pr3P/4NPP1/1R3nK1 w - - 0 27","m":"g1f1 d3d1 b1d1 d8d1","r":462,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SgSGK","f":"2r2r1k/2q3pp/4Qp2/p7/Pp1P4/1P5P/1P1RR3/4K3 b - - 4 40","m":"f8e8 e6e8 c8e8 e2e8","r":557,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Sggnh","f":"rr4k1/1Q3ppp/R3p3/1p2P3/3P4/4P3/1P2KP1P/8 b - - 0 33","m":"b8b7 a6a8 b7b8 a8b8","r":400,"t":"backRankMate endgame hangingPiece mate mateIn2 rookEndgame short"},{"i":"SgxWi","f":"r5k1/5ppp/1R2p3/1b1pP3/1n1P4/5N1P/5PP1/6K1 b - - 0 25","m":"a8a5 b6b8 b5e8 b8e8","r":409,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Shhe1","f":"5q1k/6pp/p2Q4/1p3p1r/8/PP2P1P1/5P1P/2R3K1 b - - 1 33","m":"f8d6 c1c8 d6d8 c8d8","r":438,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"SiHNh","f":"7k/6pp/8/p1R1p3/P7/2P2r1P/1r4PK/2R5 b - - 0 39","m":"f3f2 c5c8 f2f8 c8f8","r":487,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SiOrf","f":"8/5k2/6R1/1pp1p1pP/4B2r/5P2/PPP5/1K6 w - - 3 37","m":"g6g5 h4h1 g5g1 h1g1","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SiUOU","f":"3Q1k1r/pp2nppp/2n1pb2/8/2B2q2/5N2/PP3PPP/R2R2K1 b - - 2 18","m":"c6d8 d1d8","r":466,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SignF","f":"r2B2k1/p4ppp/2p5/5b2/8/5N2/Pb3PPP/R3R1K1 b - - 0 18","m":"b2a1 e1e8","r":503,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SihkJ","f":"2r3k1/5ppp/p3p3/4P3/3r4/P7/1P3PPP/3R2K1 w - - 0 25","m":"d1d4 c8c1 d4d1 c1d1","r":444,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SjaCq","f":"2r3k1/5ppp/p3p3/1p6/4P3/P2qQ3/6PP/7K w - - 0 27","m":"e3d3 c8c1 d3d1 c1d1","r":461,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"SkEEA","f":"7k/2r3pp/p3Bn2/1rN5/4PP2/P5P1/3R1K1P/8 b - - 2 34","m":"b5c5 d2d8 f6e8 d8e8","r":457,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Slxey","f":"1r6/2R3Rp/k4p2/8/8/8/5PPP/6K1 w - - 2 48","m":"g7h7 b8b1 c7c1 b1c1","r":425,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SlyTE","f":"6k1/5ppp/p7/8/PPPR1PKP/B3r1P1/2b1r3/8 b - - 4 35","m":"e3a3 d4d8 e2e8 d8e8","r":537,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SmYBB","f":"2Q5/8/p4qpk/1p1p1p1p/7R/1P6/P5P1/7K w - - 2 43","m":"h4h2 f6a1 c8c1 a1c1","r":536,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SmtyK","f":"6k1/p4ppp/4b3/3p1P2/P2P2Pq/4Q2P/1r6/4R1K1 b - - 0 29","m":"e6d7 e3e8 d7e8 e1e8","r":431,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Smxd9","f":"6k1/5ppp/4p1b1/1p6/1B4P1/P1R2PKP/3r4/8 b - - 2 33","m":"d2d3 c3c8 d3d8 c8d8","r":578,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SnQxI","f":"r3q2k/2p3pp/p1Bp4/1p2p3/4P1P1/2P2Q2/PP4P1/5RK1 b - - 0 25","m":"e8c6 f3f8 a8f8 f1f8","r":431,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Sne00","f":"r4rk1/6p1/1pN4p/p2P4/4b3/1N6/PP4PP/4R2K w - - 2 25","m":"e1e4 f8f1","r":509,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SnfeS","f":"8/5pkp/p5p1/P2R4/8/2q5/1r4PP/2R4K w - - 0 37","m":"c1c3 b2b1 c3c1 b1c1 d5d1 c1d1","r":449,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"SoFHY","f":"4r1k1/p1p2bp1/2pp3p/2n2r2/4q3/2Q3B1/P1P1BPPP/R1RN2K1 w - - 8 23","m":"e2f3 e4e1 c3e1 e8e1","r":459,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"SoODa","f":"2r1r1k1/5ppp/p1n3q1/1p3b2/4n3/BN2RB1P/PP3PPN/4R1K1 b - - 9 24","m":"e4g5 e3e8 c8e8 e1e8","r":574,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Sotuz","f":"r4rk1/p1p3p1/2p4p/4p3/4p3/2NPR3/PPP3RP/1K6 w - - 0 19","m":"c3e4 f8f1 e3e1 f1e1","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SpAhj","f":"1k1r4/ppp5/6Qp/3r1p2/8/2b3B1/P4PPP/2q2RK1 w - - 0 24","m":"f1c1 d5d1 c1d1 d8d1","r":546,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SpCbg","f":"2r1Q1k1/1p1N1ppp/p7/8/8/P1P5/1P1q1PPP/3bR1K1 b - - 10 27","m":"c8e8 e1e8","r":531,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SpPxK","f":"6k1/1p3ppp/1q2p3/4P3/1PpQ4/8/5PPP/R5K1 b - - 0 24","m":"b6d4 a1a8 d4d8 a8d8","r":548,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"SpTnu","f":"r3r1k1/pp1bqp1p/2p3p1/3P1p2/P1P2b2/1B4Q1/2P2PPP/3RR1K1 w - - 0 25","m":"g3f4 e7e1 d1e1 e8e1","r":527,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Sq5ei","f":"5r1k/6p1/p2p2QB/2p5/7b/2P5/PP4PP/3R1q1K w - - 0 30","m":"d1f1 f8f1","r":438,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SqNbe","f":"4r1k1/p4ppp/1p6/8/3r1P2/1P5P/P3R1P1/2R3K1 b - - 0 28","m":"e8e2 c1c8 d4d8 c8d8 e2e8 d8e8","r":400,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"SqXGd","f":"r1b4k/pppp1Bpp/1bn5/6q1/3P1R2/2P5/PP2Q1PP/R5K1 b - - 1 14","m":"g5f4 e2e8","r":458,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SrAsZ","f":"3r2k1/5pb1/1p2p1pp/2p1P3/2q2P2/PNB5/1P4PP/5Q1K w - - 0 32","m":"f1c4 d8d1 c3e1 d1e1 c4f1 e1f1","r":497,"t":"backRankMate endgame long mate mateIn3"},{"i":"SrZ4E","f":"4R3/7k/5P2/1p5B/8/8/1r4PP/7K w - - 4 37","m":"f6f7 b2b1 h5d1 b1d1 e8e1 d1e1","r":433,"t":"backRankMate endgame long mate mateIn3"},{"i":"SrmyI","f":"3r3k/6pp/5b2/8/5Pr1/4R2P/P7/4R2K b - - 2 33","m":"g4h4 e3e8 d8e8 e1e8","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Srzn1","f":"8/p3r1pk/5p1p/1PpR4/P1B5/8/5PPP/7K w - - 2 32","m":"f2f4 e7e1 c4f1 e1f1","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Ss1xJ","f":"6k1/5ppp/4p3/p2rP3/1r5P/R3P1P1/2R1KP2/8 b - - 1 34","m":"b4b5 c2c8 d5d8 c8d8","r":406,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SsBvM","f":"4R3/1q1r1pbk/1p4pp/p7/P1P5/1P3Q1P/5PPB/6K1 w - - 1 44","m":"f3b7 d7d1 e8e1 d1e1","r":491,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Ssyb7","f":"3r2k1/pp3pp1/3q2p1/8/8/PP5Q/5PPP/2R3K1 w - - 1 36","m":"a3a4 d6d1 c1d1 d8d1","r":577,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"StCAm","f":"1k1r4/1p4pp/2p5/Q6q/4rR2/3P4/PPP4P/1K2R3 w - - 4 29","m":"a5h5 e4e1 h5d1 e1d1","r":597,"t":"backRankMate endgame hangingPiece mate mateIn2 queenRookEndgame short"},{"i":"StSF7","f":"5rk1/p4p1p/1p3rp1/2b4q/8/1Q5R/PPP4P/1K3R2 w - - 0 26","m":"h3h5 f6f1","r":408,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"StaWE","f":"4r1k1/pp3p1p/3Q2p1/8/2B2P2/8/PPP5/1K6 w - - 1 25","m":"d6d5 e8e1 d5d1 e1d1","r":467,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Sti1f","f":"r6k/ppp3pp/7r/3P1b2/4pq2/P1PB1P2/1PP1Q2P/3RR2K b - - 0 24","m":"e4d3 e2e8 a8e8 e1e8","r":431,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"Stxeb","f":"6k1/6pp/3rPp2/P7/1P2R3/2P5/6PP/7K w - - 0 27","m":"e6e7 d6d1 e4e1 d1e1","r":437,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SuUuc","f":"6k1/4Rp2/1p6/1npR3p/6p1/8/r4PPP/6K1 w - - 0 30","m":"d5h5 a2a1 e7e1 a1e1","r":545,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Suamf","f":"6k1/2R4p/5p2/3p4/1N1b3p/8/5RPP/4r2K w - - 1 34","m":"f2f1 e1f1","r":427,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"Sud14","f":"r1bQ2k1/1p3ppp/p7/4r3/8/2q5/P1P2PPP/R3R1K1 b - - 1 18","m":"e5e8 e1e8","r":470,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"Sv4RS","f":"7k/2r3pp/R4p2/p2p4/3np3/8/5PPP/3R2K1 w - - 0 32","m":"d1d4 c7c1 d4d1 c1d1","r":458,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Sv6PF","f":"r2r2k1/pp1R1ppp/2n1p3/8/8/P4B2/1P3PPP/3R2K1 b - - 0 19","m":"c6e5 d7d8 a8d8 d1d8","r":535,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Sv7Vm","f":"r5k1/1b3Qpp/pq2p3/1p1p4/8/6N1/PP5P/5R1K b - - 4 28","m":"g8h8 f7f8 a8f8 f1f8","r":578,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"SvD0r","f":"3R4/p1k2p2/2p2Q2/7N/4r3/P7/1PP3PP/7K w - - 0 36","m":"d8f8 e4e1 f6f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SvHPH","f":"3r2k1/pb3ppp/2p2q2/1p1p4/8/P1P1QB2/1P3PPP/4R1K1 b - - 3 20","m":"a7a5 e3e8 d8e8 e1e8","r":503,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"SvMt3","f":"3r2k1/6p1/p3pr1p/1p2qp2/2pP4/2Q5/PP3PPP/3R2K1 w - - 0 24","m":"d4e5 d8d1 c3e1 d1e1","r":567,"t":"backRankMate endgame hangingPiece mate mateIn2 queenRookEndgame short"},{"i":"SvjLk","f":"1k1r4/ppp1R2p/6p1/2n5/2P5/P1P4P/2B3P1/2K5 b - - 1 25","m":"d8d7 e7e8 d7d8 e8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SvvsT","f":"6k1/p4p1p/4p1p1/4Q3/8/1P6/PNr2PPP/6K1 w - - 3 32","m":"a2a4 c2c1 b2d1 c1d1 e5e1 d1e1","r":400,"t":"backRankMate endgame long mate mateIn3"},{"i":"Svzr9","f":"r7/1p3k2/5p2/1pPp4/8/4P3/5PPP/1R4K1 w - - 2 32","m":"b1b5 a8a1 b5b1 a1b1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Sw0u8","f":"2rk4/1R1n2pp/B3pp2/1P1pPn2/3P4/P4N2/5PPP/6K1 w - - 5 26","m":"a3a4 c8c1 f3e1 c1e1","r":533,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SwaeH","f":"r1b3k1/pp3ppp/8/3p3q/4B3/2P2N1P/PP3PP1/R2Q2K1 b - - 0 17","m":"d5e4 d1d8","r":524,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"SwbAs","f":"r3nQ1k/p5pp/3bp3/1ppqP3/3p4/1P1P2P1/PNPB3P/5RK1 b - - 5 24","m":"d6f8 f1f8","r":459,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"SweCv","f":"2r1r1k1/Qp3pp1/4q2p/4N3/6b1/8/PP3PPP/R3R1K1 w - - 1 21","m":"e5g4 e6e1 a1e1 e8e1","r":570,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Sx2lk","f":"8/p2pBppk/1p2p2p/1P2P3/8/P7/r4PPP/3R2K1 w - - 1 31","m":"d1d7 a2a1 d7d1 a1d1","r":533,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SxG9e","f":"2r3k1/5ppp/R3p3/4P3/8/2Q5/5PPP/6K1 b - - 0 27","m":"c8c3 a6a8 c3c8 a8c8","r":433,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"SxRct","f":"k5r1/pp3p2/8/5p1p/1P2pPq1/P7/3R2P1/3Q2K1 b - - 1 35","m":"g4g3 d2d8 g8d8 d1d8","r":516,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SxZcL","f":"6k1/pp3ppp/5q2/8/3Q4/1P3P2/P4P1P/2R3K1 b - - 0 27","m":"f6d4 c1c8 d4d8 c8d8","r":407,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"SxgIV","f":"r3r1k1/1p3pbp/p3q1p1/8/3B1Q2/1P1R1P2/6PP/3R3K w - - 12 30","m":"d4g7 e6e1 d1e1 e8e1","r":446,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"Sy5BK","f":"3r2k1/p4ppp/2p1p3/2R5/8/P2rB3/1P3PPP/R5K1 w - - 2 23","m":"c5c6 d3d1 a1d1 d8d1","r":443,"t":"backRankMate endgame mate mateIn2 short"},{"i":"SydMq","f":"3r2k1/5ppp/2R5/1p2p3/1P2P3/r2P4/3KBPPP/8 b - - 3 23","m":"d8d4 c6c8 d4d8 c8d8","r":406,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T0LQ5","f":"4Q2k/b5pp/p2P2b1/P7/1P1Pp1Pq/4P3/1B4K1/R4R2 b - - 0 30","m":"g6e8 f1f8","r":408,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"T0oz1","f":"r6k/ppp3pp/8/4P3/3PQ3/2P1pr2/PP4PP/R4q1K w - - 2 25","m":"a1f1 f3f1","r":422,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"T1VIl","f":"Rnr3k1/5ppp/4p3/3n4/2N5/1P2PN2/5PPP/6K1 w - - 2 30","m":"c4d6 c8c1 f3e1 c1e1","r":515,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T1VrK","f":"5r1k/R4pp1/2p1p3/3nP3/2rP4/5N2/5PPP/1R4K1 w - - 3 27","m":"b1b7 c4c1 f3e1 c1e1","r":442,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T22P4","f":"8/1kp5/p7/1p1r4/8/2P5/1P4PP/4R2K w - - 0 43","m":"e1e2 d5d1 e2e1 d1e1","r":526,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"T2HBQ","f":"4r1k1/1R4pp/1p3p2/1PrN4/3R4/n3P3/5PPP/6K1 w - - 2 26","m":"b7b6 c5c1 d4d1 c1d1","r":515,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T2LQ3","f":"3r3k/2R4p/5p2/pp2p1p1/8/P4BB1/1b3PPP/6K1 w - - 0 34","m":"f3e4 d8d1","r":547,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"T2MBa","f":"3rr1k1/2p2ppp/p3qn2/1p2P3/3p4/1P3N2/PBQ2PPP/4R1K1 w - - 1 18","m":"e5f6 e6e1 f3e1 e8e1","r":456,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"T2gWc","f":"4rr2/pp3pkp/4q1p1/3R4/1P6/P4Q2/5PPP/1R4K1 w - - 1 27","m":"b1d1 e6e1 d1e1 e8e1","r":534,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"T2yWN","f":"6k1/p4pp1/1p2pbbp/8/2R4P/r5P1/5P1K/8 b - - 1 37","m":"g6h7 c4c8 f6d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T37uC","f":"5rk1/Q4ppp/p3p3/3p4/3R4/Prq5/5PPP/2R3K1 w - - 0 29","m":"c1c3 b3b1 c3c1 b1c1 d4d1 c1d1","r":545,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"T39WD","f":"3br1k1/5ppp/p7/1p2N3/2p1P3/8/PPP2PPP/3R2K1 b - - 0 21","m":"e8e5 d1d8 e5e8 d8e8","r":400,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"T3J4x","f":"r4rk1/p1p3pp/2p1p3/7Q/8/2b5/P1P3PP/1RBR1q1K w - - 2 18","m":"d1f1 f8f1","r":491,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"T3tIM","f":"r1bk1Q1r/ppppn1pp/1b6/8/4P2q/3B4/PP4PP/RNB2R1K b - - 2 12","m":"h8f8 f1f8","r":458,"t":"backRankMate mate mateIn1 oneMove opening"},{"i":"T3uD8","f":"2k5/p1p1rp1p/5p2/NR6/P2p4/8/1PP2PPP/6K1 w - - 1 27","m":"a5c6 e7e1","r":410,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"T409T","f":"3r2k1/5pbp/2nrb1p1/2N1p3/4B3/4P1B1/1R3PPP/5RK1 w - - 4 26","m":"f1c1 d6d1 c1d1 d8d1","r":455,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"T4Euu","f":"r5k1/5ppp/8/R7/2Pp2P1/7P/2K5/2b1R3 b - - 0 33","m":"a8a5 e1e8","r":551,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"T4NWc","f":"5r1k/1p3Qpp/2p2p2/p4P2/P3P3/1P4B1/1qP3PP/3R3K b - - 0 32","m":"f8f7 d1d8 f7f8 d8f8","r":434,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T4TXE","f":"r2nBr1k/1ppq2pp/1p6/8/3P1Q2/2P4P/PP4P1/R4RK1 b - - 2 18","m":"f8e8 f4f8 e8f8 f1f8","r":462,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"T4ZxS","f":"6k1/4bppp/pp2p3/4P3/1PPr4/8/P2BRPPP/6K1 w - - 0 26","m":"d2e3 d4d1 e2e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T4eHP","f":"1k6/1pr5/3Q4/3p3p/8/8/5PPP/6K1 w - - 8 40","m":"d6d5 c7c1 d5d1 c1d1","r":494,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"T4lO7","f":"4rk1r/p1pb1p2/2p5/3pqp1p/8/2N2Q2/PPP1NPPP/R3R1K1 w - - 0 18","m":"e2f4 e5e1 a1e1 e8e1","r":541,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"T4rkC","f":"1Q3k1r/4npqp/ppn1p3/4P3/2P5/2N2P2/PP3P1P/2KR1B1R b - - 0 16","m":"c6b8 d1d8","r":531,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"T55d8","f":"2r1rQ1k/1p4pp/p7/3pn3/8/4q3/PP3RPP/5R1K b - - 1 30","m":"e8f8 f2f8 c8f8 f1f8","r":416,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T58Cs","f":"6k1/3n1pp1/2rB3p/8/3p4/1P6/r4PPP/2R3K1 w - - 0 27","m":"c1c6 a2a1 c6c1 a1c1","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T58Un","f":"2r3k1/4Bp1p/6p1/2N1R3/b7/8/1P3PPP/6K1 w - - 2 25","m":"c5a4 c8c1 e5e1 c1e1","r":577,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T5Bwp","f":"r2Q2k1/1q3ppp/p3pn2/8/8/4N1P1/4PP1P/3R2K1 b - - 0 27","m":"a8d8 d1d8 f6e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T5fFf","f":"1r4k1/5ppp/4p3/8/5N2/1Q4PP/PPR2P1K/3q4 b - - 6 36","m":"b8b3 c2c8 d1d8 c8d8","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T5k0H","f":"2r3k1/pp3ppp/4p3/4P3/8/8/PP1r1PPP/3R2K1 w - - 0 21","m":"d1d2 c8c1 d2d1 c1d1","r":425,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"T66L4","f":"6k1/1pp3pp/p1pr2n1/8/8/2N5/PPP1RPPP/6K1 w - - 3 20","m":"c3e4 d6d1 e2e1 d1e1","r":512,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T6DI6","f":"1k3Q1r/ppp5/2np4/4p2p/4P3/1P3R2/P1P1PP1q/2KR4 b - - 3 25","m":"h8f8 f3f8 c6d8 f8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T6mn4","f":"6k1/p1q2pp1/3p3p/3Q4/P2P4/2r5/5PPP/4R1K1 w - - 1 24","m":"e1b1 c3c1 b1c1 c7c1","r":578,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T6tHJ","f":"8/5pk1/4p1pp/4P3/8/3p4/2r2PPP/3R2K1 w - - 0 33","m":"d1d3 c2c1 d3d1 c1d1","r":421,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"T6ynB","f":"3r2k1/p4ppp/2q2b2/3QR3/3P1P2/2P4P/PP3PP1/4R1K1 b - - 0 24","m":"d8d5 e5e8 c6e8 e1e8","r":570,"t":"backRankMate endgame mate mateIn2 short"},{"i":"T70vs","f":"r1b2r1k/pppp2pp/8/6B1/2Bn4/8/P1P3PP/R4RK1 b - - 1 16","m":"b7b6 f1f8","r":423,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"T7F8C","f":"8/5ppk/1rp1p2p/3P4/2P5/1P1qB3/5PPP/Qn4K1 w - - 0 30","m":"e3b6 d3d1","r":550,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"T7IPd","f":"4r1k1/5ppp/p7/1p1q4/6N1/8/P4PPP/3R2K1 w - - 0 27","m":"d1d5 e8e1","r":426,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"T7J30","f":"3r2k1/ppR2ppp/4p3/8/8/8/PP3PPP/2Rr2K1 w - - 4 24","m":"c1d1 d8d1","r":447,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"T7n1y","f":"2r5/6pk/R2P3p/8/p3p3/2r1P3/5PPP/1R4K1 w - - 0 35","m":"a6a4 c3c1 b1c1 c8c1","r":497,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"T89b2","f":"1rbQ1k1r/2q1npb1/p1p1p1p1/7p/2N1P3/1PP1B3/P4PPP/3RKB1R b K - 1 15","m":"c7d8 d1d8","r":458,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"T8GT7","f":"1k1Q1b1r/ppp2ppp/2n5/8/2q3n1/6PB/PPP1PP1P/2KR3R b - - 7 15","m":"c6d8 d1d8","r":439,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"T98C4","f":"3r3k/p5pp/8/2R1p3/7P/1PPQ2P1/5rPK/8 b - - 0 38","m":"d8d3 c5c8 d3d8 c8d8 f2f8 d8f8","r":556,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"TA1TI","f":"3b4/1r1P2pk/8/p6p/P7/2RRP3/5PPP/6K1 w - - 1 37","m":"c3c8 b7b1 c8c1 b1c1 d3d1 c1d1","r":546,"t":"backRankMate endgame long mate mateIn3"},{"i":"TA2db","f":"r1b2r1k/pp3Bpp/2pR4/8/8/8/PP3PPP/R1B4K b - - 0 18","m":"f8f7 d6d8 f7f8 d8f8","r":467,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TAwat","f":"rr4k1/Q3Rppp/8/8/8/3q1P2/6PP/4R1K1 b - - 0 34","m":"a8a7 e7e8 b8e8 e1e8","r":559,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"TB0hG","f":"1Q4k1/5ppp/2n5/p4b2/8/2P1p3/PP2PqPP/2KR1B1R b - - 0 18","m":"c6b8 d1d8","r":508,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"TB6Jv","f":"r5k1/pp3ppp/2p1b3/3B4/3P1q2/5N1P/PP2QPP1/4R1K1 b - - 0 20","m":"e6d5 e2e8 a8e8 e1e8","r":560,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"TBFZ1","f":"4r2k/1p1q2pp/p7/8/P1P5/4pQ1P/2P3P1/5RK1 b - - 1 32","m":"e3e2 f3f8 e8f8 f1f8","r":530,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"TBHzH","f":"2br4/7p/pR4p1/5k2/4R3/1P6/P1P2PPP/6K1 w - - 8 36","m":"b6b4 d8d1 e4e1 d1e1","r":436,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TBOXS","f":"1k1q4/ppp5/5Npn/7p/1PB5/P7/5PPP/4R1K1 b - - 0 26","m":"d8f6 e1e8 f6d8 e8d8","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TBfha","f":"6k1/1p1r1ppp/8/8/p7/7P/5PP1/2R3K1 b - - 1 34","m":"b7b5 c1c8 d7d8 c8d8","r":426,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TCBmZ","f":"6k1/5pp1/1p5p/1r2P3/8/3r4/1R3PPP/6K1 w - - 0 34","m":"b2b5 d3d1","r":496,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"TCLdZ","f":"6k1/3p1ppp/p7/8/1P2q3/8/PP2QPPP/2R3K1 b - - 0 23","m":"e4e2 c1c8 e2e8 c8e8","r":493,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"TCPwo","f":"1r3rk1/1p4p1/p3P1pp/P1R5/3P4/1Q6/5qPP/R5K1 w - - 0 25","m":"g1h1 f2f1 a1f1 f8f1","r":592,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"TCX26","f":"2kr4/1p3R2/p1p2pp1/3r4/N7/4bP2/PPP3P1/2K2R2 w - - 1 30","m":"c1b1 d5d1 f1d1 d8d1","r":566,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TCYC9","f":"r4k2/2R1ppbp/p2p2p1/1pn5/1P1N4/4P1P1/5PKP/2R5 b - - 0 26","m":"c5d3 c7c8 a8c8 c1c8","r":577,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TCdpa","f":"k4b1r/pp3pp1/3r3p/3P4/4n3/2P5/P4PPP/R3R1K1 b - - 1 21","m":"e4c3 e1e8 d6d8 e8d8","r":529,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TD7DP","f":"Q7/2r1kppp/1q2p3/3nN3/3P4/8/5PPP/1R4K1 w - - 7 31","m":"b1b6 c7c1","r":449,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TDEmA","f":"4r2k/pp4pp/8/8/1P1p1R2/P4P2/3R1PKP/4r3 b - - 2 36","m":"e8e6 f4f8","r":411,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"TDSE2","f":"2r4k/p1q3pp/1pb1Qp2/3P4/5P2/P1P4P/1P6/2K1R3 b - - 0 29","m":"c8e8 e6e8 c6e8 e1e8","r":597,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TDUcU","f":"4r1k1/5ppp/8/R7/1p1P1P2/1Pr4P/6PK/4Q3 b - - 2 32","m":"e8e1 a5a8 c3c8 a8c8 e1e8 c8e8","r":481,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"TE71G","f":"rn2r1k1/pp3ppp/2p5/8/1P2P3/P3PN2/4K1PP/R2R4 b - - 0 18","m":"e8e4 d1d8 e4e8 d8e8","r":487,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TF6ku","f":"6k1/1p3pp1/p2bp2p/4B2n/4q3/1Q6/PPPr1PPP/4R1K1 w - - 0 24","m":"e1e4 d2d1 e4e1 d1e1","r":588,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"TFOvA","f":"6k1/5ppp/2P1b3/4P3/6PK/7P/1nr5/1R6 b - - 0 46","m":"b2d3 b1b8 e6c8 b8c8","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TFPam","f":"2r2rk1/5pp1/p3p2p/1p2P3/4R2Q/PP4R1/1P4PP/2q4K w - - 3 31","m":"e4e1 c1e1","r":400,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"TFZEm","f":"6k1/1p1q3p/p2p1r2/2pP4/4R1b1/1P3rB1/1Q4NP/6RK w - - 2 35","m":"g1e1 f3f1 e1f1 f6f1","r":577,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TFbxX","f":"2r3k1/5pp1/7p/3N4/3PqPn1/R5P1/PP4P1/K3R3 w - - 5 29","m":"e1e4 c8c1","r":464,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"TFfr0","f":"2k2b1r/p3n1p1/Pp6/4R2p/8/1P6/1BrP2PP/RN5K w - - 0 22","m":"b2c3 c2c1 e5e1 c1e1","r":481,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TFner","f":"4q3/5Qpk/5r1p/1p6/8/3p4/P5PP/7K w - - 0 38","m":"f7e8 f6f1","r":439,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"TGA2V","f":"5rk1/6pp/1R1Rp3/2p5/2Q1p3/2n1P3/P5PP/5q1K w - - 2 28","m":"c4f1 f8f1","r":527,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TGJsl","f":"6k1/2Rn3p/p3p1p1/1r2p1B1/8/8/P4PPP/6K1 w - - 0 33","m":"c7d7 b5b1 g5c1 b1c1 d7d1 c1d1","r":475,"t":"backRankMate endgame long mate mateIn3"},{"i":"TGQr3","f":"4r1k1/p4ppp/1p6/5b2/2PR1K2/5PB1/r5PP/4R3 b - - 6 27","m":"e8e1 d4d8 e1e8 d8e8","r":497,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TGe9S","f":"r3r1k1/pp3ppp/4q3/2n5/8/4Q3/PP3PPP/R3R1K1 w - - 0 19","m":"e3c5 e6e1 a1e1 e8e1","r":437,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TGiBY","f":"1k1Q1r2/ppp2qp1/7p/b7/7P/4P2R/PP3PP1/3RBK2 b - - 4 28","m":"f8d8 d1d8","r":443,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TGph9","f":"4k2r/1r2B1Qp/p3p1p1/q4p2/2pP4/2P5/2P2PPP/1R4K1 w k - 0 24","m":"b1b7 a5a1 b7b1 a1b1","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TGzwX","f":"r3r3/1Qp3k1/2pbqp1p/p3N1pn/3P4/2P3B1/PP3PPP/3RR1K1 w - - 0 24","m":"e5c6 e6e1 d1e1 e8e1","r":501,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"THEKv","f":"r5k1/2pnQppp/6b1/p7/3p2P1/2qP4/2P4P/1rBKRB1R b - - 2 24","m":"d7c5 e7e8 a8e8 e1e8","r":549,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"THHnj","f":"8/p1r1k1pp/4P3/8/1P6/P7/3b2PP/3R3K w - - 0 35","m":"d1d2 c7c1 d2d1 c1d1","r":475,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TIAKV","f":"4r3/pp1n3k/2p2p1N/3p1N1p/3P4/8/PqP2PPP/1R4K1 w - - 0 25","m":"b1b2 e8e1","r":418,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TIAf2","f":"4r1k1/1b3p1p/1q4p1/2np4/p1P5/Q7/P4PPP/1R4K1 w - - 0 32","m":"b1b6 e8e1","r":522,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TIQGC","f":"r1bqr1k1/pp3ppp/8/4R3/8/2pQ2P1/PP1N1PBP/R5K1 b - - 0 16","m":"d8d3 e5e8","r":440,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"TIZPv","f":"6k1/pp3rp1/4p2p/3pP3/5r2/2P1R3/PP2Q1PP/4Rq1K w - - 5 30","m":"e1f1 f4f1 e2f1 f7f1","r":455,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"TIcCH","f":"2rr2k1/5ppp/p4n2/8/8/2P3R1/P1P3PP/5R1K w - - 17 31","m":"f1f6 d8d1 f6f1 d1f1","r":452,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TIq4H","f":"r1r4k/2Q2Rpp/1p1p2q1/4p3/PpP5/3P2PP/6PK/5R2 b - - 0 38","m":"c8c7 f7f8 a8f8 f1f8","r":584,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"TIvKF","f":"5rk1/8/4p3/rn1pN2Q/p1pP4/2P5/6PP/R4q1K w - - 2 32","m":"a1f1 f8f1","r":564,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TIxwm","f":"6k1/pp1r1ppp/8/8/2R2n2/P1P2P1P/1B4P1/7K b - - 0 31","m":"f4e2 c4c8 d7d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TIzle","f":"Q2q3k/6pp/p2p2r1/5R2/1p6/8/PPP3PP/5RK1 b - - 0 25","m":"d8a8 f5f8 a8f8 f1f8","r":482,"t":"backRankMate endgame fork mate mateIn2 queenRookEndgame short"},{"i":"TJErB","f":"1r4k1/6p1/4P1pp/3P4/8/P2r4/6PP/3R3K w - - 0 37","m":"d1d3 b8b1 d3d1 b1d1","r":431,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TJH7j","f":"4r1kr/p5pp/2pB4/1p1p1B2/5Q2/8/P4PPP/3Rq1K1 w - - 1 28","m":"d1e1 e8e1","r":437,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TJM0P","f":"5rk1/1p4b1/3p4/3P3p/1PP3p1/p5B1/P5PP/2Q2r1K w - - 1 30","m":"c1f1 f8f1","r":467,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"TJgI2","f":"2rr2k1/6p1/6p1/P4p2/8/8/1Q3PPP/R2q2K1 w - - 1 37","m":"a1d1 d8d1","r":405,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"TJnnE","f":"r3r1k1/pp3ppn/n1p5/8/2Pq4/2N2R2/PPQ3PP/3R3K w - - 0 18","m":"d1d4 e8e1 f3f1 e1f1","r":501,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TJuVX","f":"4rrk1/p5pp/bpN1p3/8/3PQ3/1P6/6PP/1N2Rq1K w - - 2 32","m":"e1f1 f8f1","r":530,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"TK7o3","f":"6k1/pp3p2/2p4p/6p1/4P3/P1Prb3/1P3PPP/4R1K1 w - - 0 24","m":"e1e3 d3d1 e3e1 d1e1","r":447,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TKRyZ","f":"1k1r4/ppp5/5np1/2b5/P1P1B1Pp/3R1P2/2K4P/1N6 b - - 2 33","m":"f6e4 d3d8","r":506,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"TL2zK","f":"2rR3k/6pp/p7/4p3/8/1P3rP1/P6P/3R2K1 b - - 1 29","m":"c8d8 d1d8 f3f8 d8f8","r":445,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TLQRR","f":"3r1rk1/5pp1/2p2B2/p3p3/4p2P/2N3Q1/PPP2P2/1K2qB1R w - - 3 22","m":"c3d1 d8d1","r":400,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"TLWTQ","f":"4r2k/ppp3pp/8/3n4/1P2N3/2PP4/P4qPP/R1B4K w - - 0 21","m":"e4f2 e8e1","r":568,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TLruB","f":"r1b3k1/1p3ppp/p1p5/8/P3r3/2P1P1B1/3n1PPP/1R1R2K1 b - - 3 20","m":"d2b1 d1d8 e4e8 d8e8","r":443,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TM91S","f":"3R3k/p5pp/5p2/1p2p3/1q6/2P5/PP2nPPP/5K2 b - - 1 26","m":"b4f8 d8f8","r":446,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"TMCbD","f":"4r1k1/p4ppp/1p3n2/2p5/3p4/1QP5/PP1q1PPP/3R2K1 w - - 0 28","m":"d1d2 e8e1","r":540,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TMG5j","f":"1k2Qr2/ppp3p1/3q4/8/2p5/8/PPP4P/4R2K b - - 2 33","m":"f8e8 e1e8 d6d8 e8d8","r":529,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"TN40E","f":"2kr3r/ppp2p1p/n7/6p1/1P3p2/P1Q5/2PR2PP/R1Bq3K w - - 1 20","m":"d2d1 d8d1 c3e1 d1e1","r":408,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TNLGC","f":"2r4k/7p/4Q2B/3pN2p/p2P4/n7/5PPP/2q3K1 w - - 0 40","m":"h6c1 c8c1","r":403,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TNMYu","f":"6k1/1pp3pp/p3P3/8/8/1PP5/1P2r1PP/5R1K w - - 1 32","m":"f1f7 e2e1 f7f1 e1f1","r":524,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TNP1X","f":"3r2k1/2pr1pp1/1p2p2p/p1b5/2q1PP2/P4B2/1P1N2PP/R1BR3K w - - 0 24","m":"d2c4 d7d1 f3d1 d8d1","r":594,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TNVMd","f":"3r1k1r/2p1b2p/P1Q2pp1/8/8/2N1P1P1/PP2NPP1/n2q1K1R w - - 3 24","m":"c3d1 d8d1","r":468,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"TOO2w","f":"7k/5q2/p1r4p/4p3/4P3/3P4/6PP/5R1K w - - 0 39","m":"f1f7 c6c1 f7f1 c1f1","r":447,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TOZ3m","f":"2R5/2P2pbk/r2Bp1p1/4P2p/Bp3P2/1b6/5PPP/6K1 w - - 0 32","m":"a4b3 a6a1 b3d1 a1d1","r":448,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TOh00","f":"8/6Bp/2k5/8/1p6/r1p5/2b2PPP/2R3K1 w - - 0 35","m":"c1c2 a3a1 c2c1 a1c1","r":461,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TOjs1","f":"6k1/1r1N1ppp/1R6/p7/4p3/4P1P1/5P1P/6K1 b - - 0 26","m":"b7d7 b6b8 d7d8 b8d8","r":580,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TP0hK","f":"6k1/R4ppb/2p1p2p/2Pp4/8/1r2PP1P/6P1/5BK1 b - - 0 25","m":"b3b1 a7a8 b1b8 a8b8","r":422,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TPDnD","f":"4r1k1/1p4p1/p6p/R7/1Pp5/P3r1B1/6PP/3R3K w - - 0 29","m":"g3f4 e3e1 d1e1 e8e1","r":578,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TPrzK","f":"5r1k/1p3qp1/p3p2p/2bpP3/3p2Q1/3B4/P1PB2PP/3R3K w - - 6 24","m":"d3g6 f7f1 d1f1 f8f1","r":577,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"TR2Y6","f":"1r6/7k/pN2R3/5p1p/6p1/8/P4PPP/6K1 w - - 1 38","m":"b6d7 b8b1 e6e1 b1e1","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TRC71","f":"r2r2k1/ppp2p1p/2n1p1pB/8/8/5R2/PP4QP/K2q2R1 w - - 8 24","m":"g1d1 d8d1 h6c1 d1c1","r":556,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TRXrd","f":"rn4k1/pp3ppp/2p5/8/2B1r1n1/2P3B1/P1P2PPP/3R1RK1 b - - 1 15","m":"e4c4 d1d8","r":446,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"TT1dn","f":"r5k1/ppp2Qpp/8/3r4/3q4/6P1/PP3RKP/R7 b - - 0 22","m":"g8h8 f7f8 a8f8 f2f8","r":570,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"TTJGH","f":"8/6kp/5pp1/p1rP4/R7/4P3/3b1PPP/3R2K1 w - - 0 31","m":"d1d2 c5c1 d2d1 c1d1","r":431,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TUBsx","f":"r5k1/2q2ppp/1n3bb1/4p3/3N2P1/1PNPQ2P/1PP2P2/4R1K1 b - - 0 24","m":"e5d4 e3e8 a8e8 e1e8","r":483,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"TUjuL","f":"3r2k1/6p1/7p/pR6/P7/2b5/5PPP/4B1K1 w - - 2 31","m":"e1c3 d8d1 c3e1 d1e1","r":459,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TUomD","f":"r4r1k/P5pp/8/8/4pb2/2N4q/PP3Q1P/1R2KR2 b - - 1 28","m":"f4h2 f2f8 a8f8 f1f8","r":581,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TVDEK","f":"r3r1k1/p1p4p/3pN1p1/8/8/8/PPP2PPP/RN4K1 w - - 1 18","m":"e6c7 e8e1","r":485,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TW38p","f":"5rk1/1p2b1pp/p1n1p3/3pP3/3P4/2N5/PP4PP/R1BQ1q1K w - - 5 21","m":"d1f1 f8f1","r":422,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"TWUAZ","f":"r1br2k1/pp1n1ppp/1qp5/4p3/4P3/2NQPN1P/PPP3P1/R2R2K1 b - - 4 13","m":"d7c5 d3d8 b6d8 d1d8","r":426,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TWXNz","f":"5rk1/5ppp/2R1p3/8/3b4/6B1/r4PPP/2R3K1 b - - 2 24","m":"f8a8 c6c8 a8c8 c1c8","r":552,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TWuNO","f":"2r5/5kpp/3r4/2P1p3/4R3/2R5/5PPP/6K1 w - - 0 40","m":"e4e5 d6d1 e5e1 d1e1","r":426,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TWwIU","f":"4r2k/pp3rpp/2pR4/3p4/1P1P1nP1/4N1K1/P1P2P2/8 b - - 2 34","m":"e8e6 d6d8 e6e8 d8e8 f7f8 e8f8","r":516,"t":"backRankMate endgame long mate mateIn3"},{"i":"TWztW","f":"6k1/5ppp/4p3/8/p5PP/Nr3BK1/2R5/8 b - - 0 40","m":"b3a3 c2c8","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TXEvP","f":"3r3k/p1q1n1bp/5pp1/4p3/4N3/5N2/PP3PPP/2R3K1 w - - 0 25","m":"c1c7 d8d1 f3e1 d1e1","r":440,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TXgJq","f":"4r1k1/7p/R1p2pp1/1p6/3BrP2/1P5R/1PP3PP/7K w - - 2 27","m":"d4c3 e4e1 c3e1 e8e1","r":495,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"TXp9J","f":"1Q6/6pk/3p3p/8/8/1P1Pr3/5qPP/5R1K w - - 2 33","m":"f1f2 e3e1 f2f1 e1f1","r":568,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"TXtGK","f":"5k2/p5p1/2pr3p/7n/8/2P1B3/1P2bPPP/4R1K1 w - - 0 26","m":"e1e2 d6d1 e2e1 d1e1","r":421,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TYuC5","f":"1R3nk1/2q2p2/pp2p2p/4N1p1/N2Pp3/1P2P1B1/P4PPP/6K1 w - - 2 26","m":"e5g6 c7c1","r":461,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TZBZ2","f":"r2q1k2/b1p2ppB/p1npr3/1p6/3P2n1/8/PP3PPP/RNBQR1K1 w - - 0 16","m":"d1g4 e6e1","r":555,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"TZCe6","f":"3r2k1/1p3ppp/p7/3Q4/1P1b4/P5P1/5P1P/2R3K1 b - - 0 23","m":"d8d5 c1c8 d5d8 c8d8","r":568,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TZXr5","f":"4r1k1/1p3ppp/r1p5/p3QP2/8/2n5/PPP3PP/3R1RK1 b - - 0 23","m":"e8e5 d1d8 e5e8 d8e8","r":597,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TZegU","f":"2k5/ppp3p1/7p/2N5/4r3/1PP5/r4PPP/4R1K1 w - - 0 22","m":"e1e4 a2a1 e4e1 a1e1","r":500,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TZhce","f":"8/pk3r2/qppb4/8/P1P1Q3/8/5rPP/R2R3K w - - 0 30","m":"d1d6 f2f1 a1f1 f7f1","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TZsuc","f":"4rr1k/pp1Q2p1/5b1p/3R1p2/3p2b1/8/PP1B1PPP/RBq4K w - - 7 22","m":"d2c1 e8e1","r":594,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Ta1D9","f":"6k1/p3R3/1r6/8/5Q2/7R/P4PPP/6K1 w - - 3 41","m":"h3h7 b6b1 f4c1 b1c1 e7e1 c1e1","r":518,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"Ta3xu","f":"2k4r/7p/p1p2p2/5b2/5N2/2b5/PP1rRPPP/2R3K1 w - - 0 23","m":"c1c3 d2d1 e2e1 d1e1","r":517,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TaJuX","f":"4q3/8/5pk1/7p/8/8/3r1PPP/4R1K1 w - - 0 39","m":"e1e8 d2d1 e8e1 d1e1","r":417,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TaTWK","f":"2rr2k1/5ppp/p5q1/1p1b4/1P6/P3QN2/5PPP/1R2R1K1 b - - 3 24","m":"d8e8 e3e8 c8e8 e1e8","r":537,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TaW65","f":"rn1qr1k1/1bp1bppp/p2p1B2/3P4/2B5/5N2/PP2QPPP/RN2R1K1 b - - 0 12","m":"e7f6 e2e8 d8e8 e1e8","r":527,"t":"backRankMate mate mateIn2 opening short"},{"i":"TbFou","f":"4r3/p5pp/1k2rn2/1b1p4/PQ1R4/1B6/1P4PP/2R1q2K w - - 3 31","m":"c1e1 e6e1 b4e1 e8e1","r":467,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TbXMh","f":"3r1rk1/p4ppp/8/2b5/4b3/3P1R2/PP4PP/R1B4K w - - 0 21","m":"d3e4 d8d1 f3f1 d1f1","r":596,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TbaX9","f":"8/p1p1kppp/4p3/4P3/P7/5R2/2r1rPPP/2R3K1 w - - 3 24","m":"c1c2 e2e1","r":592,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"TbeOj","f":"1Q4k1/5ppp/4p3/1qP5/3rp3/8/5PPP/1R4K1 b - - 1 28","m":"b5b8 b1b8 d4d8 b8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TbeYN","f":"r5k1/5ppp/N7/p3r3/2P5/1P6/5PPP/3R2K1 b - - 0 33","m":"a8a6 d1d8 e5e8 d8e8","r":416,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Tbkkk","f":"3r4/1p3pkp/p5p1/P3P3/1P6/2b2RP1/6PP/1B5K w - - 0 32","m":"b1a2 d8d1 f3f1 d1f1","r":534,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Tbo1x","f":"3r2k1/1p4p1/p1p4p/4p3/1qPpP3/1P3P2/1PQ3PP/3R3K w - - 0 27","m":"d1d3 b4e1","r":422,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TbvmE","f":"r4Q1k/1p2r1pp/1qn5/p7/P7/2P5/1P1N2PP/R4R1K b - - 1 26","m":"a8f8 f1f8","r":434,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Tc294","f":"r7/4ppkp/2pp1np1/8/p3P3/3B4/Q1PqNPPP/R5K1 w - - 4 23","m":"a1d1 d2d1","r":578,"t":"backRankMate hangingPiece master mate mateIn1 middlegame oneMove"},{"i":"Tc9Gm","f":"4r3/ppk4p/2p5/5P2/8/1P6/P4NPP/3Rr1K1 w - - 1 31","m":"d1e1 e8e1","r":520,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TcUPO","f":"5rk1/6pp/p7/1p1Rp3/2p3P1/7P/PPP5/1K6 w - - 0 31","m":"d5e5 f8f1 e5e1 f1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"TcYh6","f":"4R3/1p4bk/p6p/2pP1r2/7p/3Q4/PP4PP/5q1K w - - 6 37","m":"d3f1 f5f1","r":421,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Tcn1W","f":"4RQ1k/p5pp/2p5/2N5/PqB3b1/5rP1/1PP2P2/R6K b - - 0 31","m":"f3f8 e8f8","r":493,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"TdEfG","f":"2r5/1p3k1p/p3p1p1/4Bp2/5P2/P2q4/6PP/3R3K w - - 0 33","m":"d1d3 c8c1 d3d1 c1d1","r":463,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TeM5I","f":"3r1rk1/6b1/p7/2p1p1pQ/1pP5/1P1P3R/P5PP/2R2q1K w - - 2 28","m":"c1f1 f8f1","r":576,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TecEN","f":"1r1Q1k1r/1b2nppp/p3p3/8/1q2P3/5P2/1PP3PP/1NKR1B1R b - - 1 18","m":"b8d8 d1d8","r":544,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"TenDg","f":"1r4k1/5ppp/8/2q1P3/8/P3QN2/5PPP/6K1 w - - 0 28","m":"e3c5 b8b1 c5c1 b1c1 f3e1 c1e1","r":529,"t":"backRankMate endgame long mate mateIn3"},{"i":"TerLZ","f":"r3r1k1/ppp1qppp/5N2/8/8/2P5/PP2QPPP/3RR1K1 b - - 0 17","m":"e7f6 e2e8 a8e8 e1e8","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TfOqj","f":"r1r3k1/1p3p1p/p4Bp1/3pPn2/3P4/q2Q1N2/1R1R1PPP/6K1 w - - 1 25","m":"d3a3 c8c1 d2d1 c1d1 f3e1 d1e1","r":504,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"TfZrm","f":"4r1k1/1pp2ppb/7p/4P3/7N/1P5P/3R1PPK/r7 b - - 1 24","m":"e8e5 d2d8 e5e8 d8e8","r":447,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Tfdio","f":"r1bkr3/1pp1qpQ1/p2p4/7p/8/8/PPP1BPPP/R3R1K1 w - - 1 19","m":"e2h5 e7e1 a1e1 e8e1","r":432,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TffSM","f":"R7/5ppk/4p2p/8/8/1P6/1r3PPP/6K1 w - - 3 35","m":"a8b8 b2b1","r":430,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"TfjUt","f":"r4rk1/1q3ppp/p3p3/1p2p3/6P1/P6P/1PPQ1P2/2KR3R b - - 0 20","m":"f8d8 d2d8 a8d8 d1d8","r":425,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TfnGk","f":"3q1r1k/pQ2Npbp/5np1/4p3/4P3/4B3/PP3PPP/2R3K1 w - - 3 18","m":"c1c8 d8d1","r":535,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"TfxgM","f":"2r3r1/1p1k2b1/p3p3/3pP3/3P3Q/5P1P/PP6/K1q1R3 w - - 2 30","m":"e1c1 c8c1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Tfyd4","f":"6n1/2p1k1r1/pp6/8/4N3/5p2/PPP5/1K3R2 w - - 0 34","m":"f1f3 g7g1 f3f1 g1f1","r":531,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TgHaA","f":"6k1/5pbp/2R3p1/4P3/1r6/4P3/1B3PPP/6K1 w - - 0 29","m":"b2d4 b4b1 c6c1 b1c1","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TggLD","f":"r1bkr3/ppp3pp/2p5/5p2/4NP2/3B4/PPP2bPP/R1B4K w - - 0 14","m":"e4f2 e8e1 d3f1 e1f1","r":531,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Tghcb","f":"3rr1k1/2pnqpbp/pp1p1np1/2P5/1P1P4/2N2b1P/P1Q1BPPB/1R2R1K1 w - - 0 17","m":"e2f3 e7e1 b1e1 e8e1","r":560,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"ThTPC","f":"7k/6pp/5p2/1P6/1pq5/8/P4P1P/1K1R4 b - - 1 35","m":"c4b5 d1d8 b5e8 d8e8","r":425,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Thu2p","f":"3r4/p5kp/1p2B1n1/8/5rP1/3R3P/PP6/K7 w - - 0 30","m":"d3d8 f4f1 d8d1 f1d1","r":529,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TiA31","f":"r2r2k1/1p1N1ppp/5q2/3p4/p4P2/P5P1/1P2Q2P/3RR2K b - - 0 27","m":"d8d7 e2e8 a8e8 e1e8","r":511,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"TiEEh","f":"1r5k/1pr3pp/8/b1p1p3/2B1P3/2PP1R2/2K5/5R2 b - - 2 39","m":"b7b5 f3f8 b8f8 f1f8","r":550,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TiYwS","f":"1rb3k1/p4ppp/1p2pb2/P3B3/3R4/P1N2B2/5PPP/6K1 b - - 0 24","m":"f6e5 d4d8","r":496,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"Tj3eQ","f":"r1r5/6k1/p3ppp1/1p2Q2R/8/P4N2/1P3PP1/6K1 w - - 0 30","m":"e5h2 c8c1 f3e1 c1e1","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TjKuO","f":"r5k1/2R2ppp/4p3/p2p4/2n5/P6P/5PP1/2R3K1 b - - 2 32","m":"c4a3 c7c8 a8c8 c1c8","r":514,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TjSfu","f":"7k/6pp/8/1p3p2/8/1P1R2bP/P4rP1/6K1 b - - 9 39","m":"f2e2 d3d8 e2e8 d8e8","r":437,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Tjtzb","f":"r5k1/4qpp1/2R4p/p2p4/P7/1rP5/5PPP/4R1K1 w - - 0 35","m":"e1e7 b3b1 e7e1 b1e1","r":509,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Tk1GV","f":"1k3Q2/ppp5/3b3p/8/1q1pR3/1N1P3P/PPP2PP1/6K1 b - - 0 26","m":"d6f8 e4e8","r":428,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TkZn6","f":"r3r1k1/1p2qpp1/3p2p1/p3P3/n1PQ4/3R1N2/2P2PPP/4R1K1 w - - 0 22","m":"e5d6 e7e1 f3e1 e8e1","r":562,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Tkf7x","f":"1r4k1/6pp/5p2/2n5/P2B4/2P5/4RPPP/6K1 w - - 0 28","m":"d4c5 b8b1 e2e1 b1e1","r":482,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TkhzL","f":"r4rk1/p4ppp/2p5/6b1/2pP4/2P4P/1q1NQPP1/2R1R1K1 b - - 5 19","m":"f8e8 e2e8 a8e8 e1e8","r":533,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TlThx","f":"2b2b1k/5p1n/p7/1p1P3Q/5q2/P2Rr3/1PP1N1PP/7K w - - 0 31","m":"e2f4 e3e1","r":432,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"TmCb6","f":"5rk1/2r3pp/p2qB3/1pp1p3/3p1Q2/1P1P4/P1P3PP/5RK1 b - - 1 26","m":"g8h8 f4f8 d6f8 f1f8","r":464,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TmCdm","f":"1r6/5p1p/3kpp2/p7/R2N4/8/Pr2bPPP/R5K1 w - - 0 28","m":"a4a5 b2b1 a1b1 b8b1","r":565,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TmZvb","f":"r2Q1k1r/p3npp1/2p1p2p/1p2qb1P/4p3/2N2P2/PPP3P1/1K1R1B1R b - - 3 16","m":"a8d8 d1d8","r":433,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Tmc68","f":"2r1k3/5p2/p3PQ2/3R1pP1/1p6/8/PP1B4/K1q5 w - - 3 35","m":"d2c1 c8c1","r":429,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Tn3jV","f":"1Q2r1k1/3R1ppp/p7/P7/1Pq5/7P/5PP1/3R2K1 b - - 0 35","m":"e8b8 d7d8 b8d8 d1d8","r":500,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Tn5Dk","f":"r6k/pb4pp/1p1p4/3Pp3/2P1Pnq1/P1PB2P1/5Q1P/R4RK1 b - - 0 22","m":"f4d3 f2f8 a8f8 f1f8","r":560,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"TnveC","f":"k2r4/pn3p1p/4p3/3Q1p2/3N4/P5P1/5P1P/2R3K1 b - - 0 36","m":"d8d5 c1c8","r":563,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"Tox34","f":"1k2Q1r1/ppp2p2/3p1r2/8/2P5/7P/PP3P1K/R3R3 b - - 1 25","m":"g8e8 e1e8","r":415,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"TpAot","f":"2Q2rk1/p4ppp/1p1p4/6q1/1P1P4/P6P/4R1P1/4R1K1 b - - 0 28","m":"f8c8 e2e8 c8e8 e1e8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"TpOJS","f":"3rr1k1/1p2bpp1/p1n4p/2P5/1P6/2P1PQP1/4NPBP/2Rq1K1R w - - 7 21","m":"c1d1 d8d1","r":542,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Tpgj1","f":"1Q6/2R5/8/p7/3R1P2/k1P5/1r4PP/7K w - - 0 42","m":"b8a8 b2b1 d4d1 b1d1","r":564,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"TqGFc","f":"5Q1k/1p4pp/pqb3n1/8/3p2P1/8/PBP4P/5RK1 b - - 1 29","m":"g6f8 f1f8","r":507,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TqkKV","f":"8/2r3p1/4p3/8/6k1/5NP1/PP2pQ2/K1q1R3 w - - 2 46","m":"e1c1 c7c1","r":402,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"Tqpyo","f":"4r1k1/5p2/2P1p1p1/q3N3/1rbQ1B2/8/5PPP/R5K1 w - - 0 29","m":"a1a5 b4b1 f4c1 b1c1 d4d1 c1d1","r":402,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"TqqJM","f":"1k6/ppp2p2/8/2PP1p2/1P2pP2/P5R1/7r/5K2 b - - 1 31","m":"h2a2 g3g8","r":465,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"TqqzC","f":"2rQ2k1/p4ppp/1p2p3/2r5/5bN1/P4BqP/1P4P1/3RRK2 b - - 20 34","m":"c8d8 d1d8","r":574,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"TrJ6W","f":"6k1/5ppp/2r1n3/3RP3/p7/P4N1P/5PPB/6K1 w - - 0 31","m":"f3g5 c6c1 d5d1 c1d1","r":554,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TrMS8","f":"2Q1r1k1/pp1R1ppp/6q1/8/8/6P1/PP2PP1P/3R2K1 b - - 0 21","m":"e8c8 d7d8 c8d8 d1d8","r":465,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Trnoy","f":"5r1k/ppp3bP/3p1q2/4p3/6R1/3P4/PPP3Q1/1K3rR1 w - - 6 29","m":"g1f1 f6f1 g2f1 f8f1","r":494,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Ts3Uz","f":"5r1k/6pp/p1rp4/1p6/2p2R2/P2P4/1PP3PP/4R1K1 b - - 0 21","m":"f8f4 e1e8 f4f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Ts5Jp","f":"rk3b2/ppp2NpQ/5n2/q2p4/3n4/2N5/PPb2PPP/R1B1R1K1 b - - 0 17","m":"f6h7 e1e8","r":451,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"TsgZt","f":"2r2Q1k/6pp/p1p5/3p4/1P1P4/P2qPR1P/6PK/8 b - - 13 33","m":"c8f8 f3f8","r":552,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"TuY8b","f":"2kr1b1r/pp2pppp/2n5/8/8/4P3/PP2NPPP/R1Bq1RK1 w - - 0 12","m":"f1d1 d8d1","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"TuaYs","f":"4r1k1/p5p1/2Q2p2/3pr2p/8/1P6/P5PP/q4R1K w - - 0 29","m":"f1a1 e5e1 a1e1 e8e1","r":475,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"TuhmV","f":"7k/r3q1pp/p4p2/1p2pRQ1/3rP1P1/1B6/PP4P1/5RK1 b - - 0 27","m":"f6g5 f5f8 e7f8 f1f8","r":522,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TvGSP","f":"6k1/1q3ppp/4p3/pPR2n2/P2PQ3/6P1/5PP1/6K1 b - - 0 29","m":"b7e4 c5c8","r":443,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TvYxm","f":"1k1r4/1p6/p7/1PP3b1/P3p2p/7R/4q1PP/4R2K w - - 0 38","m":"e1e2 d8d1 e2e1 d1e1","r":526,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TvhnK","f":"6k1/2R2ppp/4pb2/B7/2p1P3/2P5/1r5P/6K1 b - - 1 26","m":"b2a2 c7c8 f6d8 c8d8","r":565,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TvwP1","f":"1R6/6p1/4p1k1/8/4p2R/8/r1P2PPP/6K1 w - - 1 34","m":"h4e4 a2a1 b8b1 a1b1 e4e1 b1e1","r":565,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"Tw0MH","f":"r4rk1/pp3ppp/2pB1bq1/3n4/3P4/2P3PB/PP2QP1K/R3R3 b - - 8 22","m":"f8e8 e2e8 a8e8 e1e8","r":529,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Tw2kp","f":"1r4k1/3N1ppp/4pb2/3b4/3P4/N3P3/1B1n1PPP/2R3K1 b - - 2 27","m":"b8b2 c1c8 f6d8 c8d8","r":480,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TwEZq","f":"4r1k1/pR3ppp/2p5/3bQ3/8/P4P1P/6PK/8 b - - 0 33","m":"e8e5 b7b8 e5e8 b8e8","r":569,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TwnDr","f":"4r1k1/2p4b/p2p1qpb/1p1P4/1PP3Q1/P7/6PP/1B3R1K w - - 0 36","m":"f1f6 e8e1 f6f1 e1f1","r":568,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"Twwmb","f":"2r4r/4ppk1/7p/6p1/pp1N1P2/4P1PQ/PP4P1/K1q4R w - - 2 33","m":"h1c1 c8c1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TxQM1","f":"3r4/p3ppkp/3q1np1/1p2Nb2/8/1P2PB2/PQ3PPP/2R3K1 w - - 2 21","m":"c1d1 d6d1 f3d1 d8d1","r":452,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"TxTAy","f":"2r2Q1k/p5pp/1p6/3p2q1/3P4/1nP3B1/P1P3PP/5RK1 b - - 2 26","m":"c8f8 f1f8","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TxoJi","f":"r5k1/5ppp/8/8/p4P2/P3K3/2R3PP/8 b - - 0 39","m":"a8a5 c2c8","r":426,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"Tyayo","f":"8/1pkr2p1/1pp1p3/6P1/7P/8/PPP5/1K1q1Q1b w - - 5 34","m":"f1d1 d7d1","r":454,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Tynty","f":"2rk3r/p2b1Bpp/3Q4/8/5B2/4P3/PP3PPP/6K1 w - - 1 24","m":"f7e6 c8c1 d6d1 c1d1","r":591,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TzANa","f":"2rr2k1/5pp1/1n2p2p/N7/1B6/QP6/P4PPP/R2q2K1 w - - 1 26","m":"a1d1 d8d1 b4e1 d1e1","r":532,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"TzLRy","f":"r1b1r1k1/pp3ppp/8/4Q3/8/8/PP2BPPP/3R1RK1 b - - 0 18","m":"e8e5 d1d8 e5e8 d8e8","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TzOdw","f":"1k6/p1p2r2/Qp2b3/4p3/4P1p1/2R5/P5PP/5q1K w - - 2 34","m":"a6f1 f7f1","r":404,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"TzT8n","f":"3R2r1/1p2kn1p/p1r1p3/8/4N3/5Q2/Pb3PPP/6K1 w - - 2 30","m":"d8g8 c6c1 f3d1 c1d1","r":412,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TzZ1m","f":"2r3k1/rp1R1ppp/2R1p3/8/4P2P/1P6/1P3PKP/8 b - - 0 25","m":"c8c6 d7d8","r":478,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"Tzev8","f":"6k1/1br2ppp/4p3/8/1Rpr2B1/7P/1P3PP1/2R3K1 b - - 0 34","m":"b7d5 b4b8 c7c8 b8c8","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TzoLQ","f":"4r2k/ppp4p/8/7b/4B1N1/7P/PPPR1PP1/1K6 w - - 3 23","m":"e4b7 e8e1 d2d1 e1d1","r":525,"t":"backRankMate endgame mate mateIn2 short"},{"i":"TzpEr","f":"3r3k/1p3rpp/p1p5/2P5/3Q1PP1/P6P/8/4RRK1 b - - 0 29","m":"d8d4 e1e8 f7f8 e8f8","r":430,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"U03Be","f":"3nr3/pp4kq/4p3/3p3Q/3P4/2P2R1N/PP3PPP/6K1 w - - 0 29","m":"h5e8 h7b1","r":475,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"U0Jm1","f":"4r1k1/p1p2p2/2p2Pp1/7p/8/1P1P3Q/P3r1PP/2q2R1K w - - 0 23","m":"f1c1 e2e1 c1e1 e8e1","r":531,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"U27Uc","f":"rR4k1/2Q2ppp/3p1q2/p1bP4/8/5N2/P1r2PPP/5RK1 b - - 1 18","m":"a8b8 c7b8 f6d8 b8d8","r":433,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"U2AJF","f":"1Q4k1/5ppp/n5b1/P7/3r4/B6P/1R4PK/8 b - - 0 36","m":"a6b8 b2b8 d4d8 b8d8","r":520,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U2tlQ","f":"3r2k1/p3bppp/R3p3/1P1q4/8/4BQ2/5PPP/6K1 w - - 2 27","m":"a6a7 d5d1 f3d1 d8d1","r":504,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U30l9","f":"2r3k1/p6p/1p2pq1Q/8/8/P7/1P4PP/7K w - - 0 32","m":"h6f6 c8c1 f6f1 c1f1","r":546,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"U3CNc","f":"1k2r3/1p3ppp/1np1q3/2p5/2P3N1/5B2/PPQ2PPP/3R2K1 w - - 1 25","m":"b2b3 e6e1 d1e1 e8e1","r":532,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"U3w5n","f":"5r1k/6pp/8/6r1/p4B2/2P2n2/P4PP1/2R1RK2 b - - 3 32","m":"f8f4 e1e8 f4f8 e8f8","r":590,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U4ruz","f":"3r4/pp5k/2n2b2/5p1p/8/8/PP3PPP/1RB1R1K1 w - - 2 22","m":"e1e6 d8d1 e6e1 d1e1","r":463,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U4ux2","f":"4B3/6kp/5qp1/5p2/8/PQ6/4r1PP/4R2K w - - 0 40","m":"e1e2 f6a1 b3b1 a1b1 e2e1 b1e1","r":519,"t":"backRankMate endgame long mate mateIn3"},{"i":"U5Jmu","f":"8/5ppk/p1p3n1/2Bp4/PP5p/1P6/r4PPP/3R2K1 w - - 4 26","m":"d1d3 a2a1 d3d1 a1d1","r":418,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U65SA","f":"5rk1/1p3q1p/3p2pb/p2Pp3/2P1Q3/1P4N1/P5PP/R6K w - - 3 26","m":"a1f1 f7f1 g3f1 f8f1","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U6IQY","f":"r4rk1/pp4pp/4pq2/4N3/P1p5/2P5/1P4PP/R1B1Q2K w - - 0 18","m":"e5d7 f6f1 e1f1 f8f1","r":525,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"U7Hc4","f":"r4Q1k/6pp/8/p7/8/1P6/P2q2PP/2R2R1K b - - 10 41","m":"a8f8 f1f8","r":571,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"U7iWr","f":"3r2k1/5ppp/R1p1p3/1p2Pn2/4KP2/2P5/PP5P/8 b - - 2 21","m":"d8d2 a6a8 d2d8 a8d8","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U7l0Y","f":"1kb5/2p1r3/p1Bp3p/1p1P2pP/8/3Q4/PPP5/1K3R2 w - - 7 31","m":"f1f8 e7e1 d3d1 e1d1","r":450,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U88Mu","f":"rN2q1k1/2p2ppp/p3p3/6n1/QP6/P3RPP1/5PK1/3R4 b - - 0 27","m":"e8a4 d1d8 a4e8 d8e8","r":490,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U8AOZ","f":"6k1/5ppp/1np2q2/3p1n2/3PpP2/r1P1P3/3N2PP/1Q3RK1 b - - 1 22","m":"b6a4 b1b8 f6d8 b8d8","r":480,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"U8BfY","f":"3r3k/1p4p1/4pbBp/2P2p2/bP6/P3B1R1/q2Q1PPP/6K1 w - - 1 33","m":"d2a2 d8d1","r":485,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"U8Pz1","f":"6k1/p5pp/5p2/r1PN4/2r5/4P3/5PPP/2R3K1 w - - 2 29","m":"c1c4 a5a1 c4c1 a1c1","r":422,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U8RZG","f":"r3Q1k1/ppq2ppp/8/2Pn2B1/8/5N2/PPP2PP1/R3R1K1 b - - 0 17","m":"a8e8 e1e8","r":444,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"U8W4j","f":"4rQ1k/6np/2pp4/1p2q1pP/p3P1P1/P2B4/1PP5/1K3R2 b - - 8 31","m":"e8f8 f1f8","r":413,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"U8oeO","f":"3r2k1/pp3ppp/4p3/P3P3/8/5N2/2q2PPP/2R3K1 w - - 0 27","m":"c1c2 d8d1 f3e1 d1e1","r":494,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U8syC","f":"2r3k1/1p2Bppp/p3p3/4Pn2/2r5/1N1R1P2/P5PP/3R2K1 b - - 0 24","m":"f5e7 d3d8 c8d8 d1d8","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U8y5E","f":"2r3k1/2Q2ppp/4p3/p4b2/3Pp3/2P3P1/P4PP1/1R4K1 b - - 0 23","m":"c8c7 b1b8 c7c8 b8c8","r":448,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U90UW","f":"1k2rb1r/p3q1p1/2p2p1p/8/3PQ3/2P5/PP3PPP/R3R1K1 w - - 0 20","m":"e4c6 e7e1 a1e1 e8e1","r":511,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"U9mlL","f":"r4rk1/5pp1/1R1Bp2p/1pP5/1p6/P4N2/5PPP/6K1 w - - 0 30","m":"a3b4 a8a1 f3e1 a1e1","r":521,"t":"backRankMate endgame mate mateIn2 short"},{"i":"U9yqM","f":"r1b3k1/p3bppp/8/1ppr4/8/5P2/PPP2P1P/4RRK1 b - - 0 18","m":"e7f6 e1e8","r":429,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UA2x2","f":"3r2k1/p2Q1ppp/4p3/4b3/8/1P2P1PP/P1R2PK1/8 b - - 0 31","m":"d8d7 c2c8 d7d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UAJnj","f":"4r3/pp4kp/5pp1/5n2/3p4/3N3Q/PP3PPP/2q3K1 w - - 0 24","m":"d3c1 e8e1","r":525,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"UAbCC","f":"r3r3/1pp1qp1k/3p3p/p1nP1Pp1/P1Pb2N1/2N3R1/1PQ3PP/3R2K1 w - - 2 29","m":"g1h1 e7e1 d1e1 e8e1","r":560,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"UAdL8","f":"3r2k1/5pp1/6p1/8/4P3/1P6/P3q1PP/4R2K w - - 0 42","m":"e1e2 d8d1 e2e1 d1e1","r":439,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UBF6A","f":"5R2/2pr2pp/6k1/R4p2/8/1n3PB1/6PP/7K w - - 0 41","m":"a5f5 d7d1 g3e1 d1e1","r":465,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UC6UB","f":"7k/pp2r1pp/2B3p1/8/n7/3P2P1/P1P2PKP/1R6 b - - 0 28","m":"b7c6 b1b8 e7e8 b8e8","r":472,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UCMgt","f":"r2r2k1/ppp3pp/2P1b3/8/4q3/2P5/PPQ3PP/R1B4K w - - 0 20","m":"c2e4 d8d1 e4e1 d1e1","r":561,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UCZkX","f":"r1br3k/6pp/p1p2p2/2p1Q3/P1B2R2/7P/2P3P1/5R1K b - - 0 23","m":"f6e5 f4f8 d8f8 f1f8","r":532,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UCr4Q","f":"r2rQ1k1/2p2ppp/5q2/p2bR3/pP6/P7/5PPP/4R1K1 b - - 1 24","m":"d8e8 e5e8 a8e8 e1e8","r":422,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UE8zA","f":"8/3Q2pk/2P2p1p/8/p7/r4P2/1p4PP/1R5K w - - 0 45","m":"b1b2 a3a1 b2b1 a1b1 d7d1 b1d1","r":536,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"UF3aH","f":"r5k1/5ppp/4p3/8/2RPn3/4BN1P/P4PP1/b5K1 b - - 0 24","m":"a8a2 c4c8","r":464,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UFCNX","f":"3r1k2/1p2pp1p/p1n4b/5p2/2p2N2/5PQ1/PPP3PP/1K1r3R w - - 4 21","m":"h1d1 d8d1","r":427,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UFrYy","f":"r1b2Q1k/p2p2pp/2pq4/1p6/4P3/3P2p1/PPP4P/R4RK1 b - - 2 18","m":"d6f8 f1f8","r":423,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UG7xD","f":"2kr3r/pppq1p1p/5N2/7Q/2B2b2/5P2/PPP3PP/2KR3R w - - 1 17","m":"c1b1 d7d1 h1d1 d8d1","r":495,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"UG9K3","f":"6k1/3n1ppp/1p2p3/4N3/R7/p1r1P3/3NKPPP/8 b - - 3 31","m":"d7e5 a4a8 c3c8 a8c8","r":515,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UGDkB","f":"3Q2k1/p4ppp/q1n5/5b2/8/8/PPP2PPP/R2KR3 b - - 0 22","m":"c6d8 e1e8","r":480,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UGPea","f":"2r5/5pkp/pp4p1/4Pp2/3P4/4Q3/5PPP/2q3K1 w - - 0 29","m":"e3c1 c8c1","r":408,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UGRrE","f":"5r1k/6bp/4R1p1/6p1/1nP5/1Q6/6PP/3R1q1K w - - 2 32","m":"d1f1 f8f1","r":536,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UGWW4","f":"2br4/6pk/p1p1p2p/4Qp2/8/2N5/P1P2PPP/1r4K1 w - - 1 21","m":"c3b1 d8d1 e5e1 d1e1","r":568,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"UH5Me","f":"3r4/1R5p/2p2kp1/p7/2P5/1n1r4/P4PPP/R5K1 w - - 0 25","m":"a2b3 d3d1 a1d1 d8d1","r":505,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UHY1j","f":"4r2k/2Qn3p/p3q1p1/8/2p1B3/8/P1PB2PP/4R2K w - - 4 30","m":"e4g6 e6e1 d2e1 e8e1","r":525,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"UHp8A","f":"1r2k3/5p2/4p2p/n3P1p1/R2P4/1N6/5PPP/6K1 w - - 2 35","m":"b3a5 b8b1","r":416,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UHpZB","f":"2r3k1/4Bppp/R7/1p1p4/nP2p3/P6P/5PP1/4K3 b - - 0 34","m":"c8c3 a6a8 c3c8 a8c8","r":540,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UI0u2","f":"r3r1k1/p4ppp/2Q5/2p2P2/8/2P5/P1P2PPP/R3q1KR w - - 3 18","m":"a1e1 e8e1","r":435,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"UIz9s","f":"r4Q1k/p5pp/1q6/1p2r3/3PP3/2P5/1P4PP/R4RK1 b - - 2 23","m":"a8f8 f1f8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"UJ0wA","f":"R5nk/5ppp/1pB1p3/1P5b/3rP3/8/1P1B1PPP/6K1 w - - 2 26","m":"d2c3 d4d1 c3e1 d1e1","r":480,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UK3MR","f":"2r3kr/3q3p/p3p3/5nP1/1P6/5P1Q/PP5P/K1BR4 w - - 0 35","m":"d1d7 c8c1","r":416,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"ULuVf","f":"r1b1r1k1/ppp3pp/8/5p2/3q1B2/8/PPP2PPP/RN1Q2K1 w - - 0 14","m":"d1d4 e8e1","r":567,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"UMtFR","f":"4r1k1/5ppp/p7/3p4/P2P4/4R3/6PP/2R3K1 b - - 0 26","m":"e8e3 c1c8 e3e8 c8e8","r":438,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UN0qf","f":"2r2rk1/pp1n1ppp/4p3/4P3/3p4/2P1R3/PP3PPP/RN4K1 w - - 0 17","m":"c3d4 c8c1 e3e1 c1e1","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UN8h5","f":"4r3/5pkp/5np1/1p6/n2Q4/P6P/5PPB/2R1q1K1 w - - 7 37","m":"c1e1 e8e1","r":521,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UNizg","f":"1r4k1/p1p2pp1/7p/N2p4/8/2b5/PP2RPPP/6K1 w - - 0 21","m":"b2c3 b8b1 e2e1 b1e1","r":468,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UP20z","f":"6k1/5ppp/p7/qp1Pp3/4Pbb1/1B3N1P/PPQ3P1/6K1 b - - 0 25","m":"g4f3 c2c8 a5d8 c8d8","r":522,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UPc3k","f":"2rQ3k/pp4pp/8/5R2/P7/1P2P3/2P1q1PP/5RK1 b - - 0 31","m":"c8d8 f5f8 d8f8 f1f8","r":490,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"UPs4G","f":"3r2k1/p1q1ppbp/1p4p1/8/1Q6/1P2B3/P4PPP/2R3K1 w - - 1 24","m":"c1c7 d8d1 b4e1 d1e1","r":558,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UPyvJ","f":"5k2/p4p1p/p4p2/3Pp3/4P3/3Q4/P5PP/2rRq2K w - - 7 28","m":"d1e1 c1e1 d3f1 e1f1","r":538,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"UQ3MJ","f":"6k1/1b2Pppp/p4n2/8/2r5/2N2N2/5PPP/3R2K1 b - - 0 24","m":"c4c3 d1d8 f6e8 d8e8","r":583,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UQ4XS","f":"1k1r3r/pppb1q2/4p2p/2P2pp1/8/P1NQ3P/1PP2PP1/1K1RR3 b - - 0 19","m":"d7c6 d3d8 h8d8 d1d8","r":457,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"UQFLi","f":"1r6/p2r1kp1/2p4p/4P3/2P2P2/4bR2/P5PP/1R5K w - - 3 27","m":"b1b8 d7d1 f3f1 d1f1","r":445,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UQQqp","f":"1k2Q1r1/ppp5/5p2/8/8/2P2N1P/PP2RKP1/2q5 b - - 0 38","m":"g8e8 e2e8","r":495,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UQpLc","f":"2r2rk1/R4pp1/7p/8/3P4/8/4nPPP/4R1K1 w - - 0 26","m":"e1e2 c8c1 e2e1 c1e1","r":572,"t":"backRankMate endgame master mate mateIn2 rookEndgame short"},{"i":"UQzb7","f":"4r2k/p1p2p2/8/1r2pn1p/4R3/P2P3P/R1P2PPB/6K1 w - - 0 26","m":"c2c4 b5b1 e4e1 b1e1","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"URCzp","f":"4rQ1k/1p4pp/p7/2p1b3/8/7P/Pq4P1/5R1K b - - 2 34","m":"e8f8 f1f8","r":494,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"URPXk","f":"3r3k/1p5p/2p1N3/1p4p1/1P6/P7/5qPP/5R1K w - - 0 30","m":"f1f2 d8d1 f2f1 d1f1","r":484,"t":"backRankMate endgame mate mateIn2 short"},{"i":"URWG6","f":"8/5p1k/1p4pp/8/1Pr2P2/P3q3/6PP/4R2K w - - 0 33","m":"e1e3 c4c1 e3e1 c1e1","r":434,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"URhxM","f":"r1b2r1k/1pp2Qpp/p1np4/6B1/8/2N5/PPP2PPP/4RRK1 b - - 0 17","m":"f8f7 e1e8 f7f8 e8f8","r":556,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"URkP5","f":"8/p5pp/6k1/P1Rn4/r7/8/5PPP/6K1 w - - 0 29","m":"c5d5 a4a1 d5d1 a1d1","r":535,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"URwVS","f":"r4Q1k/p5pp/1p2B3/2p5/2pp3q/P6P/1P6/R1B2RK1 b - - 0 24","m":"a8f8 f1f8","r":468,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"US1T3","f":"r3Q1kr/1b3ppp/pq1p4/nppP4/8/1B1P1N2/PPP2PPP/R3R1K1 b - - 3 16","m":"a8e8 e1e8","r":494,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"USHEy","f":"1B1r3k/6pp/r1n5/pp1Q4/2pP2q1/2P3P1/5P1P/4RRK1 b - - 0 27","m":"c6b8 d5d8","r":568,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"USKTS","f":"4N1k1/3r2pp/8/p7/1n6/8/5PPP/1R4K1 w - - 1 40","m":"b1d1 d7d1","r":442,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"USine","f":"3r2k1/1p3ppp/p1p1n3/4RP2/2P5/P7/1P1r1P1P/1K2R3 b - - 0 25","m":"e6f4 e5e8 d8e8 e1e8","r":485,"t":"backRankMate endgame mate mateIn2 short"},{"i":"USkWD","f":"5rk1/p5p1/P1b4p/1p6/2pQp3/2P1P3/2B3PP/R4q1K w - - 6 33","m":"a1f1 f8f1","r":413,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UTEWt","f":"8/8/3R4/1kp5/1p6/6r1/PPP5/1K2R3 w - - 0 39","m":"e1e6 g3g1 e6e1 g1e1 d6d1 e1d1","r":462,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"UTx5T","f":"4r1k1/p5p1/1p5p/6n1/8/3q1PN1/1P4PP/3R3K w - - 0 36","m":"d1d3 e8e1 g3f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UUAu9","f":"4r1k1/p1p2ppp/8/1b1p4/3Br3/1P6/P1P2PPP/3RR1K1 w - - 3 22","m":"c2c3 e4e1 d1e1 e8e1","r":469,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UUHLr","f":"2r3k1/4bpp1/1p5p/3n4/3Np3/P3P1B1/3R1PPP/6K1 w - - 0 26","m":"d4f5 c8c1 d2d1 c1d1","r":524,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UUORP","f":"8/3r2k1/r6p/4R1p1/8/2P5/5PPP/R5K1 w - - 0 42","m":"a1a6 d7d1 e5e1 d1e1","r":425,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UUjbB","f":"2r3k1/1r3ppp/2pRp3/1Pp1q3/8/PQ4PP/1P3P2/3R2K1 b - - 0 27","m":"c6b5 d6d8 c8d8 d1d8","r":589,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UVH0X","f":"4r1k1/ppr1qppp/1n6/4Q3/2P5/1P3B2/P4PPP/R3R1K1 w - - 1 22","m":"e5c7 e7e1 a1e1 e8e1","r":521,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"UVRZW","f":"8/3pppkp/rp4p1/3P4/4P3/1P3N2/2r2PPP/R5K1 w - - 0 23","m":"a1a6 c2c1 f3e1 c1e1","r":451,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UVvFg","f":"2kr4/pp2r3/2p4p/2n3p1/8/2P4P/PP3PPB/4R1K1 w - - 0 27","m":"e1e7 d8d1 e7e1 d1e1","r":591,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UWOpE","f":"3r2k1/5ppp/4p3/1pq5/1b2Q3/P7/P4PPP/2R3K1 w - - 0 24","m":"c1c5 d8d1 e4e1 d1e1","r":487,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UXDcY","f":"2k5/2P2ppp/3Bp3/3p1b2/1p1P4/rP6/5PPP/2R3K1 w - - 3 30","m":"c1c5 a3a1 c5c1 a1c1","r":489,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UYAxu","f":"2r2rk1/5pbp/4p1p1/1N6/1P6/P2n4/R4PPP/3R2K1 w - - 3 27","m":"d1d3 c8c1 d3d1 c1d1","r":421,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UYYLt","f":"2kn1Q2/pppr2pp/5n2/8/8/P5B1/3r1PPP/2q1R1K1 w - - 0 24","m":"e1c1 d2d1 c1d1 d7d1","r":568,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"UYfrK","f":"2rR2k1/p4ppp/8/4pb2/8/1N6/P1r1BPPP/1K1R4 b - - 5 27","m":"c8d8 d1d8","r":416,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UZURs","f":"4r1k1/pp2q1n1/2p3Q1/3P3N/5b1P/1B6/PPP3P1/2K3R1 w - - 1 28","m":"c1b1 e7e1 g1e1 e8e1","r":551,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"UZhtw","f":"3r2k1/p6p/1p2ppp1/8/7Q/4R3/P5PP/3rRq1K w - - 4 34","m":"e1f1 d1f1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"Ua9OM","f":"6k1/2p2ppp/p1p1b3/5P2/2P1Q3/1P5P/q2r2P1/4R1K1 b - - 0 24","m":"e6d7 e4e8 d7e8 e1e8","r":586,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"UaCs7","f":"r5k1/ppp2ppp/2q5/8/3P4/2P4P/P1P1QPP1/4R1K1 b - - 1 19","m":"c6c3 e2e8 a8e8 e1e8","r":447,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"UaGqT","f":"2kr4/p3R2p/1pp2Bp1/5p2/5P2/1Q6/PP4PP/3q3K w - - 1 27","m":"b3d1 d8d1 e7e1 d1e1","r":448,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UaOkw","f":"5r1k/ppp2Qpp/8/8/PP1P4/2P2N2/2q2PPP/4R1K1 b - - 0 23","m":"f8f7 e1e8 f7f8 e8f8","r":580,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UajNe","f":"3r2k1/1p3pp1/2p4p/4q3/1P6/P7/5PPP/4R1K1 w - - 0 32","m":"e1e5 d8d1 e5e1 d1e1","r":519,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Uaovr","f":"3r2k1/pR5p/5ppB/8/8/2n5/P1P2PPP/4R1K1 w - - 1 23","m":"e1e7 d8d1 e7e1 d1e1","r":542,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UazGU","f":"3r2k1/5ppp/1R6/8/8/2n2P2/3R2PP/6K1 b - - 0 36","m":"d8d2 b6b8 d2d8 b8d8","r":525,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UbAty","f":"6k1/b4ppp/4p3/8/R7/4BPPK/1r5P/8 b - - 1 34","m":"a7e3 a4a8 b2b8 a8b8","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UbCRh","f":"2kr3r/2p1nppp/p1p5/4p3/8/2P5/PP3PPP/RN2R1K1 w - - 0 18","m":"e1e5 d8d1 e5e1 d1e1","r":577,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UbisS","f":"3r2k1/p1p1qppp/Qpp5/8/2b2B2/2P5/P1P2PPP/4R1K1 w - - 3 20","m":"e1e7 d8d1 e7e1 d1e1","r":518,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Ubmot","f":"r1b1r1k1/p4ppp/2pR4/4B3/5N2/4P1PP/P4P2/5RK1 b - - 0 24","m":"e8e5 d6d8 e5e8 d8e8","r":550,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UboSa","f":"r2r2k1/1Q3ppp/4pq2/p7/P7/2P5/6PP/3R1R1K w - - 0 25","m":"f1f6 d8d1 f6f1 d1f1","r":510,"t":"backRankMate endgame hangingPiece mate mateIn2 queenRookEndgame short"},{"i":"UbtyA","f":"1k2r3/ppp2p1p/8/8/q1Q5/B1Pn4/1P3PPP/1K1RR3 b - - 0 25","m":"a4c4 e1e8","r":548,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"UcIPi","f":"8/1R6/3b2p1/5k2/8/rp6/5PPP/3R2K1 w - - 0 43","m":"d1d6 a3a1 d6d1 a1d1","r":500,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UcWg2","f":"5rk1/2R2pp1/p2p3p/2bP4/8/2P5/P4rPP/R3N1K1 w - - 0 22","m":"g1h1 f2f1","r":538,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UcZPs","f":"1k1r3r/pp2bppp/2p5/4RB2/8/P1P5/5PPP/R1B3K1 w - - 3 18","m":"e5e7 d8d1 e7e1 d1e1","r":580,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UcvqK","f":"r2kr3/pbpp1p2/1p3Bpp/n2P4/8/3B2P1/P1P2P1P/R3R1K1 b - - 2 20","m":"d8c8 e1e8","r":533,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"UdKGU","f":"8/2R4p/3Pk1p1/r3pp2/1P6/4P3/5PPP/6K1 w - - 5 34","m":"d6d7 a5a1 c7c1 a1c1","r":498,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UdcKA","f":"8/6k1/p2Nn1p1/7p/1r6/8/5PPP/4R1K1 w - - 2 34","m":"e1e6 b4b1 e6e1 b1e1","r":408,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Udr2w","f":"r4rk1/8/pp4pn/2bPN3/2P5/2Q5/PP4PP/4Rq1K w - - 4 26","m":"e1f1 f8f1","r":569,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Udsmp","f":"1r3r1k/6pp/3R4/p7/P7/2Pp4/QP4PP/3R1q1K w - - 2 29","m":"d1f1 f8f1","r":401,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"UeEqk","f":"5rk1/5ppp/p2r4/1p6/1P6/R7/P4PPP/4R1K1 w - - 1 27","m":"e1e7 d6d1 e7e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UeILx","f":"3r2k1/p5pp/8/1pp1r3/8/2P5/PP2RPPP/6K1 w - - 0 25","m":"e2e5 d8d1 e5e1 d1e1","r":456,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UfA2D","f":"5b1k/1pr4p/p5p1/3qP3/8/P7/1P3PPP/1B1R2K1 w - - 0 28","m":"d1d5 c7c1 d5d1 c1d1","r":559,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"UfZmF","f":"1k1Qr3/ppp4p/6p1/8/4Pb2/2N1q2B/PP6/1K1R3R b - - 0 27","m":"e8d8 d1d8","r":587,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Ufp2E","f":"5rk1/2qR2p1/pp3p1p/4pQ2/1P6/P3B3/5PPP/2r3K1 w - - 8 38","m":"e3c1 c7c1 d7d1 c1d1","r":598,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UfvXz","f":"1k2r3/p4p1p/2R3p1/4r3/1P6/8/1P4PP/2R4K w - - 1 30","m":"c6c7 e5e1 c1e1 e8e1","r":579,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UgL2g","f":"1r1r3k/p2P2pp/4R3/8/3b4/1B3KP1/P6P/4R3 b - - 0 34","m":"d8d7 e6e8 b8e8 e1e8","r":440,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UgORC","f":"2k4r/3rb2p/pQp3p1/4P3/8/5N2/1P3PPP/R5K1 w - - 1 28","m":"a1a6 d7d1 f3e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UgSo6","f":"6k1/r2R1ppp/4p3/4P3/p4P2/2R4P/6P1/7K b - - 0 31","m":"a7d7 c3c8 d7d8 c8d8","r":437,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UglmS","f":"3r4/1p1NR3/4p1k1/8/1p1rP3/8/P4PPP/R5K1 w - - 4 26","m":"d7c5 d4d1 a1d1 d8d1","r":485,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UhXAC","f":"6k1/1p3pp1/p4n1p/8/P4Q2/2P2P2/5qPP/3Rr2K w - - 1 27","m":"d1e1 f2e1","r":572,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Uhni7","f":"r1r3k1/5ppp/p1R1pn2/1p6/3P4/N4P2/PP1K1P1P/2R5 b - - 5 19","m":"f6d5 c6c8 a8c8 c1c8","r":555,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Ui2dV","f":"3r2k1/1p2Rppp/p7/8/1r6/8/1P3PP1/1R4K1 b - - 3 24","m":"d8d2 e7e8","r":494,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"Ui6GN","f":"6k1/p3Pppp/1p2b3/1B2q3/8/PQ6/5PPP/3R2K1 b - - 0 26","m":"e6b3 d1d8","r":496,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Uj8cI","f":"4r1k1/pp2qppp/8/8/8/5Q2/PPP2PPP/3r1RK1 w - - 0 22","m":"f1d1 e7e1 d1e1 e8e1","r":463,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"UjJPP","f":"6k1/pp3p2/3Q3p/8/7p/P2P1P2/5qPP/1R2r2K w - - 5 33","m":"b1e1 f2e1","r":500,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UjXeE","f":"3rr3/1p1k1bbp/p1p3p1/8/1P1NR3/2P5/5PPP/R1B3K1 w - - 1 23","m":"e4f4 e8e1","r":454,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"UkCDo","f":"4r1k1/pp3ppp/2p5/8/1PP3Pn/P7/4QP2/1K1R4 b - - 0 33","m":"e8e2 d1d8 e2e8 d8e8","r":532,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UkE4N","f":"4rrk1/1pp1qppp/1pn5/3B2n1/8/P4Q2/1P3PPP/R1B1R1K1 w - - 5 18","m":"c1g5 e7e1 a1e1 e8e1","r":594,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"UkFV0","f":"2rr3k/1p2R1pp/p4p2/1pn5/5P2/P1P3P1/1PN4P/4R1K1 b - - 1 26","m":"d8d2 e7e8 c8e8 e1e8","r":577,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UkKXx","f":"1q1kr3/1p3p2/1PpprP2/5Q2/P5Bp/8/2P2PPP/R5K1 w - - 1 35","m":"a4a5 e6e1 a1e1 e8e1","r":561,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UkfhK","f":"8/2R3p1/p2pQ1p1/1kp5/3r4/P7/5PPP/6K1 w - - 7 39","m":"e6e3 d4d1 e3e1 d1e1","r":406,"t":"backRankMate endgame master mate mateIn2 queenRookEndgame short"},{"i":"UkhOu","f":"3Rnk2/5ppp/1pN5/8/5P2/1P6/1r4PP/7K w - - 6 29","m":"c6d4 b2b1","r":523,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Ul6tg","f":"2r3k1/1R3ppp/1b6/1p6/1P6/2r5/P4PPP/R5K1 w - - 0 25","m":"b7b6 c3c1 a1c1 c8c1","r":426,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Ul8x5","f":"5rk1/5ppp/pR2p3/4r3/8/8/P1P2RPP/7K w - - 0 25","m":"b6a6 e5e1 f2f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UlIlD","f":"3r4/2r2ppk/4b2p/1p6/3R4/1P1P1Q2/5PPP/6K1 w - - 0 29","m":"d4d8 c7c1 f3d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UlLhG","f":"3r1rk1/p2q3p/1pp2p2/4p1p1/n1P1P2Q/P1N3R1/1P3PPP/R5K1 w - - 2 24","m":"c3a4 d7d1 a1d1 d8d1","r":560,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"UlUIx","f":"2kr3r/1pp1ppNQ/p4p1p/3q4/8/4B3/PPP2PPP/R4RK1 w - - 1 17","m":"f1d1 d5d1 a1d1 d8d1","r":549,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"UlXL6","f":"3r2k1/2Q1bpp1/4pn1p/1p6/7B/1P3N2/1P3PPP/R2q2K1 w - - 1 23","m":"a1d1 d8d1 f3e1 d1e1","r":512,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"UlqND","f":"6k1/5ppp/4pn2/1p6/1P2p1P1/4n2P/3r2B1/2R1K3 b - - 1 26","m":"d2g2 c1c8 f6e8 c8e8","r":486,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UlwB0","f":"4r1k1/p4pbp/1p2qnp1/8/2P5/1P3B2/PBQ2PPP/3r1RK1 w - - 0 22","m":"f1d1 e6e1 d1e1 e8e1","r":519,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"Ulz3t","f":"r1k1Q3/pbpn2p1/1p3n1p/8/8/2PP4/P1P2PPP/R3R1K1 b - - 5 18","m":"f6e8 e1e8","r":411,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Umdkl","f":"r5k1/pp3pb1/2p3pp/1n2p3/4P3/qPN1B1Q1/P1PR1PPP/6K1 w - - 3 22","m":"c3b5 a3c1 d2d1 c1d1","r":476,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Un3lv","f":"r1br2k1/1p3ppp/pn6/4R3/8/P1PBB3/P4PPP/R5K1 b - - 2 18","m":"d8d3 e5e8","r":577,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"UnMeL","f":"2r5/5k1p/5p2/p4pp1/P2N4/8/1r3PPP/2R3K1 w - - 1 34","m":"c1c8 b2b1 c8c1 b1c1","r":511,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UnVBy","f":"2rr2k1/1p2nppp/8/1P1qN3/8/4B3/3Q1PPP/R2R2K1 b - - 0 23","m":"d5e5 d2d8 c8d8 d1d8","r":504,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"UnYg8","f":"1q1Q3k/6pp/8/p5r1/3Q4/3P1pPP/P4P1K/8 b - - 0 37","m":"b8d8 d4d8","r":425,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UnbKR","f":"r2r2k1/1b3ppn/1Pn1p2p/p7/Nbp5/4P3/PPQ1NPPP/R1B3K1 w - - 1 15","m":"c2c4 d8d1","r":407,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"UnhH1","f":"3rQ2k/p1pN2pp/8/8/2P5/1r5P/1q3PP1/4R1K1 b - - 2 30","m":"d8e8 e1e8","r":576,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UoAwq","f":"2b1r1k1/5ppp/1Pp5/1rNp4/3P4/5R2/6PP/1R5K w - - 2 29","m":"b1b5 e8e1 f3f1 e1f1","r":480,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UoSJM","f":"r2Q1k1r/1pp1nppp/p1p2q2/4b3/4P3/8/PPP2PPP/RNBR2K1 b - - 7 12","m":"a8d8 d1d8","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"UqCx8","f":"1Q4k1/pp3ppp/4p3/3p1nP1/1P5P/3P4/q1rN1PK1/7R b - - 4 32","m":"c2c8 b8c8","r":400,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"Uqdhu","f":"3r2k1/1pp1qp1p/p3p1p1/3rN3/P7/1P2P3/1Q3PPP/1R1R2K1 w - - 2 23","m":"e5c4 d5d1 b1d1 d8d1","r":503,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Ur4Sp","f":"6k1/p4ppp/2p5/5p2/2P5/P4K2/2r3PP/1R6 b - - 5 32","m":"c2c4 b1b8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"UrAmd","f":"4rbk1/ppp1qppp/2p5/8/2br1B2/2N2NQ1/PP3PPP/3R2K1 w - - 0 21","m":"f3d4 e7e1 d1e1 e8e1","r":514,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"UrGm1","f":"4r1k1/pp2qppp/2p5/1P6/P2P4/8/1Q3PPP/R5K1 w - - 1 22","m":"b5c6 e7e1 a1e1 e8e1","r":466,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"UrOdL","f":"4r1k1/p3Qppp/8/2p2q2/5B2/P4BP1/1Pb1PP1P/3R2K1 b - - 0 21","m":"e8e7 d1d8 e7e8 d8e8","r":579,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UrocC","f":"2r5/4bpk1/6p1/1p1p4/4N3/1P3P2/6PP/3R3K w - - 0 33","m":"d1d5 c8c1 d5d1 c1d1","r":462,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UsEcu","f":"2N2r1k/5rp1/7p/p7/2P5/8/P3q1PP/R3R2K w - - 0 33","m":"e1e2 f7f1 a1f1 f8f1","r":501,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UtcOA","f":"6k1/r4pp1/1q2p2p/R7/2pN4/8/3Q1PPP/6K1 w - - 0 38","m":"a5a7 b6b1 d2c1 b1c1","r":575,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Uu6kX","f":"2r5/3bppk1/3p1np1/p2N3p/1p1QP2P/3R1P2/PP4P1/K1qR4 w - - 2 26","m":"d1c1 c8c1","r":508,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"UuqmR","f":"b1r3k1/p3Rppp/1p6/3p4/1P1b4/P4B2/1r3PPP/4R1K1 b - - 3 25","m":"d4f6 e7e8 c8e8 e1e8","r":523,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Uv0n0","f":"1r4k1/p2q1ppp/2p5/2p5/8/3Q4/P4PPP/6K1 w - - 0 27","m":"d3d7 b8b1 d7d1 b1d1","r":554,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"UvCEc","f":"2r3k1/p4p1p/1p4p1/3p4/3P4/1Pr1P3/1R3PPP/5RK1 w - - 3 27","m":"f1b1 c3c1 b1c1 c8c1","r":477,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UvHkN","f":"3r3k/6p1/2p1q2p/p7/8/8/PPP2PPP/4R1K1 w - - 0 26","m":"e1e6 d8d1 e6e1 d1e1","r":417,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UvV2r","f":"3r2k1/p4ppp/1p1r1p2/4b3/1N3B2/2P5/PP2R1PP/4R1K1 b - - 0 29","m":"e5f4 e2e8 d8e8 e1e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Uvt5o","f":"rn3Q1k/6pp/bp1qp3/p2pN3/3P4/2N1P3/PP4PP/5RK1 b - - 5 18","m":"d6f8 f1f8","r":504,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Uvy3R","f":"4r1k1/5ppp/p7/3R1P2/4B3/8/Pr4PP/5RK1 b - - 0 24","m":"e8e4 d5d8 e4e8 d8e8","r":564,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Uw0jN","f":"2r1r1k1/R2b1pp1/7p/8/2p5/Q5B1/5PPP/2R1q1K1 w - - 4 30","m":"c1e1 e8e1","r":417,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Uw3Cc","f":"r2r2k1/1R2Qppp/8/3R4/p7/B1n5/5PPP/3q2K1 w - - 0 31","m":"d5d1 d8d1 e7e1 d1e1","r":595,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"UwFiQ","f":"4r1k1/pppb1pbp/3p2p1/3P4/1Q1q4/1P3B2/P1P2PPP/1RB3K1 w - - 3 18","m":"b4d4 e8e1","r":576,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"UwPoV","f":"1r3Q1k/6pp/p7/3p4/1B1P2PP/1P6/Pq1b1RK1/8 b - - 8 42","m":"b8f8 f2f8","r":552,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UwTnh","f":"3r2k1/3q1ppp/p7/1p6/2p2Q2/4P3/PP6/K1Rr1R2 w - - 4 35","m":"c1d1 d7d1 f1d1 d8d1","r":405,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UwZDh","f":"2kr3r/ppp1n1p1/7p/4R3/8/8/PPP2PPP/R1B3K1 w - - 1 17","m":"e5e7 d8d1 e7e1 d1e1","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UwoHC","f":"r1b2rk1/p1pn2p1/2p1R2p/2b5/8/1B6/PPP3PP/RNB3K1 w - - 1 17","m":"g1h1 f8f1","r":583,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Uwt7h","f":"k1Q4r/pn4p1/1p6/3p4/1P2N2P/3q2P1/PB3PK1/2R5 b - - 1 31","m":"h8c8 c1c8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UxD64","f":"6k1/1B3ppp/8/R1p5/1p1p4/1Pn4P/2P2PPK/4r3 b - - 1 36","m":"e1e5 a5a8 e5e8 a8e8","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Uy6Z5","f":"6k1/p5pp/3Rpq2/8/4P3/8/PBr2PPP/6K1 w - - 0 32","m":"b2f6 c2c1 d6d1 c1d1","r":563,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UyW63","f":"3r2k1/5ppp/1p2p3/1Pp5/5P2/2P2P2/1P1R3P/R5K1 b - - 0 26","m":"d8d2 a1a8 d2d8 a8d8","r":422,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"UydFL","f":"r1b2rk1/5qp1/p3p1Bp/3p3Q/3b4/2N5/PPP3PP/R4RK1 w - - 4 19","m":"g1h1 f7f1 a1f1 f8f1","r":530,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Uz0gp","f":"R3nk2/1R2rpp1/3N3p/2n1p3/4P3/2r2N2/5PPP/6K1 w - - 5 22","m":"b7e7 c3c1 f3e1 c1e1","r":599,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"UzDYi","f":"8/1r4pp/6k1/3Q1p2/3p4/8/2p2PPP/2R3K1 w - - 2 44","m":"c1c2 b7b1 c2c1 b1c1","r":493,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"UzQYl","f":"7k/pp3Rpp/8/8/5P2/1P4PK/P2r3P/8 b - - 4 33","m":"d2a2 f7f8","r":405,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"Uzhrl","f":"4rQ1k/pp4pp/1q6/3p4/8/8/P4RPP/1bBK4 b - - 2 24","m":"e8f8 f2f8","r":450,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"UzpoG","f":"2r3k1/p4ppp/5n2/8/4P3/2N5/P2R1K1P/r7 b - - 4 28","m":"c8c3 d2d8 f6e8 d8e8","r":499,"t":"backRankMate endgame mate mateIn2 short"},{"i":"UzrYl","f":"r3r1k1/p3nppp/1pBp1q2/3P1b2/P7/5P2/1PP1Q1PP/R1B1R1K1 b - - 0 17","m":"e7c6 e2e8 a8e8 e1e8","r":578,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"V0V0V","f":"2r3k1/1q3pp1/1B2p2p/pp6/1P1PQ3/P3PN2/5PPP/6K1 w - - 0 28","m":"e4b7 c8c1 f3e1 c1e1","r":490,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V0m9y","f":"6k1/5ppp/1p6/8/3q1Q2/8/bP1R1PPP/4rBK1 b - - 0 25","m":"d4f4 d2d8 e1e8 d8e8","r":503,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V0qW1","f":"3r1rk1/1p3ppp/pN2p1b1/6Q1/4P3/8/P5PP/R2q3K w - - 0 25","m":"a1d1 d8d1","r":441,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"V1cvY","f":"r2Q3k/pp4pp/5pb1/2p5/2P3q1/5p2/PP3PPP/3RR1K1 b - - 3 25","m":"a8d8 d1d8 g6e8 e1e8","r":513,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V1i8n","f":"5r1k/6p1/p1Npbq1p/2n5/1Q6/6N1/P1P3PP/1R5K w - - 2 27","m":"b1f1 f6f1 g3f1 f8f1","r":598,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"V1opk","f":"1nb5/5pkp/p2p2p1/2pNr3/2P5/P2P1B2/3q1PPP/Q4RK1 w - - 8 28","m":"f1e1 d2e1 a1e1 e5e1","r":562,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"V1yok","f":"5r1k/6pp/p4r2/1p6/4Q1b1/6P1/PP4PP/R3Rq1K w - - 0 33","m":"e1f1 f6f1 a1f1 f8f1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V22wQ","f":"3r2k1/1pR2ppp/p2Qp3/8/8/5P1P/5P1K/8 b - - 0 34","m":"d8d6 c7c8 d6d8 c8d8","r":541,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"V2vwU","f":"7k/2p2ppp/8/p2rb1B1/4p3/5nPP/5PK1/1R6 b - - 1 33","m":"f3g5 b1b8 d5d8 b8d8","r":408,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V4iJ0","f":"6k1/3r1ppp/p7/3P1p2/8/5N2/1P2b1PP/4R1K1 b - - 3 30","m":"e2f3 e1e8","r":471,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"V4qA0","f":"2kr4/pp5p/2p1q3/6B1/8/P7/1bP2PPP/4R1K1 w - - 0 24","m":"e1e6 d8d1 e6e1 d1e1","r":437,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V54AT","f":"5r1k/pp3rpp/2n5/2PP4/P1Q5/BP6/6PP/R4q1K w - - 1 27","m":"a1f1 f7f1 c4f1 f8f1","r":448,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V5N6o","f":"k7/pp4pp/4Rn2/3Q4/8/8/5KPP/2r2B2 b - - 0 27","m":"f6d5 e6e8 c1c8 e8c8","r":527,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"V5gUa","f":"1k1r4/ppp2p2/r3Pnq1/2P1R1p1/QP5p/P6P/4NPP1/3R2K1 b - - 0 26","m":"a6a4 d1d8","r":585,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"V5x2J","f":"r5k1/2p2ppp/R4n2/1p6/5P2/1PN2b2/1P3PPP/3R2K1 b - - 0 19","m":"a8a6 d1d8 f6e8 d8e8","r":566,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V69S2","f":"6k1/p1p2ppp/3N4/5P2/2r5/P6P/3r1PP1/1R3RK1 b - - 0 22","m":"c7d6 b1b8 c4c8 b8c8","r":443,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"V6CRW","f":"r1bqr1k1/2p2ppp/p2p1N2/8/1p6/1N3P2/PPP3PP/R2QR1K1 b - - 0 15","m":"d8f6 e1e8","r":590,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"V6LkZ","f":"3r2k1/5ppp/3R4/R1p5/1n6/6P1/1P3PBP/6K1 b - - 0 28","m":"d8d6 a5a8 d6d8 a8d8","r":497,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V6be5","f":"5rk1/1r3pp1/2R1p2p/p2p4/pP1P4/P5Q1/5PPP/6K1 w - - 0 27","m":"b4a5 b7b1 c6c1 b1c1","r":430,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"V725N","f":"2bq1r1k/3r3n/pp1R3Q/4ppp1/2P1B3/4P1B1/PP3PPP/R5K1 w - - 1 25","m":"d6g6 d7d1 a1d1 d8d1","r":540,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"V7FQt","f":"4Rn1k/1p3Ppp/p7/3p4/8/2r4Q/Pq4PP/5R1K b - - 1 24","m":"c3h3 e8f8","r":543,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"V7YBT","f":"3r1rk1/5pbp/p2R1q2/1pB1p2Q/4P3/5P2/PPP3P1/1K3B2 w - - 1 22","m":"d6f6 d8d1","r":499,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"V7a8m","f":"3r2k1/4Rppp/p7/1p1p4/1P6/P4P1P/5PP1/6K1 b - - 1 25","m":"d8d6 e7e8","r":489,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"V7bId","f":"6k1/pp3ppp/2p2n2/8/2P4P/1PN1q3/Pr4PK/3R4 b - - 0 28","m":"e3c3 d1d8 f6e8 d8e8","r":531,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V7huA","f":"8/p3R1pk/5q1p/8/8/P2p1P2/2r2PPP/Q5K1 w - - 1 31","m":"a1f6 c2c1 e7e1 c1e1","r":586,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"V85sc","f":"4r1k1/p4pp1/1p5p/8/1PbBr3/2P5/P4PPP/R3R1K1 w - - 3 25","m":"a2a4 e4e1 a1e1 e8e1","r":525,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V8bCK","f":"1r5k/5ppp/2p4b/3p4/R7/P3P2K/1P3P2/8 b - - 0 34","m":"b8b2 a4a8 b2b8 a8b8","r":425,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V8dhN","f":"6BQ/p5pn/5p1k/7p/1p6/3q4/PP4PP/K2rR3 w - - 0 39","m":"e1d1 d3d1","r":496,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"V8evn","f":"4rQ1k/6pp/1P6/2P5/P2P4/6P1/3q4/5RK1 b - - 4 46","m":"e8f8 f1f8","r":590,"t":"backRankMate endgame master mate mateIn1 oneMove queenRookEndgame"},{"i":"V8jSL","f":"5k2/ppp3pp/8/3Pr3/8/P7/1P4PP/3R3K w - - 2 25","m":"d1d2 e5e1","r":401,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"V8luL","f":"3rr1k1/1p1n1pp1/2p4p/p2p1P2/P1Pq4/7Q/BP3PPP/3R2K1 w - - 0 24","m":"d1d4 e8e1","r":431,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"V98pU","f":"4r1k1/pb3pb1/npp5/4r3/6Q1/3P1BN1/1PP2PPP/R5K1 w - - 5 23","m":"g3f5 e5e1 a1e1 e8e1","r":541,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"V9Ro2","f":"2r1r2k/p5b1/1pn2npp/2p5/4qN2/1QP2N2/PP3PPP/R1B2RK1 w - - 0 23","m":"f1e1 e4e1 f3e1 e8e1","r":498,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"V9nCu","f":"4r1k1/p1p2ppb/7p/2p1QP2/1r4P1/1P5P/2P5/1NKR4 b - - 0 28","m":"e8e5 d1d8 e5e8 d8e8","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"V9om4","f":"1r4k1/1Q3ppp/8/1p2P3/3P4/7P/6PK/R7 b - - 0 30","m":"b8b7 a1a8 b7b8 a8b8","r":444,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"V9xWE","f":"k1Q3r1/pp2b1B1/3p2p1/3P2P1/P4P2/2R2KN1/P1p4q/8 b - - 5 37","m":"g8c8 c3c8","r":429,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VAUCv","f":"1Q1r3k/p4ppp/p7/4Pp2/2p2P2/8/P1q2BPP/RR4K1 b - - 0 27","m":"d8b8 b1b8","r":441,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VCeiu","f":"r3r1k1/pp3pp1/2p2n2/6Q1/8/2N5/PPP3PP/3b1R1K w - - 0 22","m":"f1f6 e8e1 f6f1 e1f1","r":534,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VCfhu","f":"6k1/pp3ppp/8/8/8/1PqnrPP1/P4RK1/3R4 b - - 1 28","m":"d3f2 d1d8 e3e8 d8e8","r":466,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VCk1e","f":"r1b2rk1/p4ppp/2pRp3/8/8/P4N2/1PP2PPP/R5K1 b - - 0 16","m":"f8d8 d6d8","r":405,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"VD3XP","f":"2knr3/1ppR4/8/p6p/6b1/2P5/PP1R1PPP/4N1K1 w - - 5 29","m":"d7d5 e8e1","r":477,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"VDA9l","f":"6k1/5ppp/3pp3/6bP/2b5/r7/2P2PP1/1R2K1R1 b - - 5 29","m":"a3a5 b1b8 g5d8 b8d8","r":511,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VDOY2","f":"k1r2bnr/1p2n1pp/p2B4/1N6/3Np1b1/Q7/PP3PPP/4R1K1 w - - 0 24","m":"e1e4 c8c1 e4e1 c1e1","r":471,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"VDc2w","f":"1k5Q/ppp5/8/4b2p/3p4/3P1q1P/PPP2PR1/4R2K b - - 0 27","m":"e5h8 e1e8","r":416,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VDrg7","f":"7k/4r1bp/3q3p/5p2/5P2/p5R1/Q5PP/4R2K w - - 0 41","m":"e1e7 d6d1 e7e1 d1e1","r":562,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VE2PG","f":"5r1k/p3R1p1/7p/4Q3/3p4/8/6PP/1r2Rq1K w - - 2 30","m":"e1f1 b1f1","r":427,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"VEAqC","f":"6k1/5pp1/1p2p1p1/1P6/P1r5/8/5PPP/3R2K1 w - - 0 29","m":"d1d6 c4c1 d6d1 c1d1","r":400,"t":"backRankMate endgame master mate mateIn2 rookEndgame short"},{"i":"VEhfN","f":"3r1rk1/2p1bppp/p1p2n2/6B1/8/2P5/PP3PPP/RN2R1K1 w - - 0 15","m":"e1e7 d8d1 e7e1 d1e1","r":422,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"VEq9t","f":"r1b4k/1pq3pp/1p6/4Q3/2B5/P1P5/1P4PP/2KR4 b - - 0 25","m":"c7e5 d1d8 e5e8 d8e8","r":486,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VFQrF","f":"3r4/3r1k1p/p3R3/1p3N2/2n5/2P5/P4PPP/R5K1 w - - 5 27","m":"e6a6 d7d1 a1d1 d8d1","r":448,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VFj9o","f":"5rk1/pp4p1/3p3p/8/5r2/P3R2Q/1P4PP/4Rq1K w - - 6 31","m":"e1f1 f4f1","r":447,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"VG12z","f":"5r1k/6pp/p7/1p6/8/3QP3/PP3qPP/2R4K w - - 2 30","m":"c1f1 f2f1 d3f1 f8f1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VGG4q","f":"1r6/5pkp/3P2p1/8/p2q2N1/8/6PP/3R3K w - - 0 37","m":"d1d4 b8b1 d4d1 b1d1","r":420,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VHNie","f":"1k5r/pp5p/3Q4/1Pp3p1/5p2/2q4P/Pn3PPB/3R2K1 b - - 5 28","m":"b8a8 d6d8 h8d8 d1d8","r":528,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"VHjr5","f":"5k2/5p1p/RPN5/1r2P1p1/8/3p4/5PPP/3R2K1 w - - 2 32","m":"d1d3 b5b1 d3d1 b1d1","r":406,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VHmz6","f":"r5k1/1pq2ppp/p3p3/1R1pPb2/Q7/2P5/P4PPP/5RK1 b - - 0 20","m":"a6b5 a4a8 c7b8 a8b8","r":568,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"VHqUm","f":"rk3b1r/ppp3pp/5Q2/4n3/5B2/8/PPP2PPP/2KR3R b - - 0 16","m":"g7f6 d1d8","r":491,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"VImpD","f":"4R3/5pkp/3N1p2/2pp4/8/1P6/2r2PPP/6K1 w - - 2 26","m":"e8e7 c2c1 e7e1 c1e1","r":520,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VIurT","f":"6k1/ppR2ppp/3q1n2/8/5Q2/5P2/P5KP/5N2 b - - 0 25","m":"d6f4 c7c8 f6e8 c8e8","r":577,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VIuvR","f":"5r1k/1R3Bpp/4P1n1/8/8/p1r5/P4qPP/5R1K w - - 0 42","m":"f1f2 c3c1 f2f1 c1f1","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VJ1G1","f":"r1bq1rk1/pp2bppp/4pn2/2p5/2BP4/5Q2/PPP1NPPP/R1BR2K1 w - - 0 12","m":"d4c5 d8d1","r":400,"t":"backRankMate hangingPiece mate mateIn1 oneMove opening"},{"i":"VJ8ha","f":"r1b1r1k1/pp3ppp/2p5/4qp2/4BR2/3P4/PPP3PP/R1BQ3K w - - 0 16","m":"e4f3 e5e1 d1e1 e8e1","r":505,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"VJNpn","f":"3r2k1/p4ppp/2B5/5b2/8/1Rb5/P4PPP/2B3K1 w - - 0 18","m":"c1e3 d8d1","r":591,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VJy3O","f":"r5k1/2q2pp1/2p2p2/p2p3p/3P1b1N/1P5P/P1b1QPP1/4RN1K b - - 3 29","m":"c2h7 e2e8 a8e8 e1e8","r":453,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"VK9RL","f":"3r3k/3q2pp/2n1R3/p7/5P2/P6P/4Q1PK/8 b - - 3 39","m":"d7c7 e6e8 d8e8 e2e8","r":459,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VKUDm","f":"Q4rk1/5ppp/p7/4P3/3P1q2/1R6/2p3PP/1R4K1 b - - 0 31","m":"f8a8 b3b8 a8b8 b1b8","r":406,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"VKn8M","f":"3r2k1/p4pp1/1p5p/8/8/1Pq1P3/P4PPP/2R3K1 w - - 0 24","m":"c1c3 d8d1","r":579,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"VL3RZ","f":"4r1k1/p1p2ppp/1p6/4R3/8/2P5/P5PP/3R2K1 b - - 0 22","m":"e8e5 d1d8 e5e8 d8e8","r":567,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"VMEmI","f":"1r3rk1/p5p1/4p2p/3pP3/8/2N5/PP3qPP/R1BQRb1K w - - 3 27","m":"e1f1 f2f1 d1f1 f8f1","r":573,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"VMHHb","f":"3r2k1/6pp/pR1N4/4p3/P4p2/8/3r2PP/R6K w - - 5 31","m":"d6e4 d2d1 a1d1 d8d1","r":434,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VMLY0","f":"2rQ2k1/p1r2ppp/4p3/4b2q/N7/1P6/P4PPP/3RR1K1 b - - 6 22","m":"c8d8 d1d8","r":480,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"VMLpB","f":"5k2/pp1r2pp/2p3b1/4qpQ1/2P5/8/P5PP/4R2K w - - 0 28","m":"e1e5 d7d1 e5e1 d1e1","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VMeol","f":"1k5r/ppp2R1p/8/5R2/8/P7/1Pr5/7K b - - 0 29","m":"c2b2 f7f8 h8f8 f5f8","r":563,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"VMfDL","f":"3r2k1/5ppp/p3p3/3BP3/2R2P2/P6P/6P1/7K b - - 0 31","m":"d8d5 c4c8 d5d8 c8d8","r":472,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"VNrAy","f":"2r2rk1/pp2pp2/3p2p1/8/4PR2/P6Q/6PP/R1q4K w - - 2 23","m":"a1c1 c8c1 f4f1 c1f1","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"VO4xS","f":"3rR2k/1p4pp/7r/5P2/1PB3P1/2q4P/6Q1/4R1K1 b - - 1 40","m":"d8e8 e1e8","r":579,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VOEMb","f":"3r3k/1p2r1pp/pq6/2bpP3/P4Q2/1P4NP/1Bn3P1/5R1K b - - 1 26","m":"b6b3 f4f8 d8f8 f1f8","r":490,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"VOlUh","f":"6k1/8/p2p3p/5pp1/P7/1P2RN2/2r2PPP/6K1 w - - 0 30","m":"f3d4 c2c1 e3e1 c1e1","r":535,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VP96J","f":"8/5ppp/P1k1p3/4P3/8/B3P3/r4PPP/3R2K1 w - - 3 30","m":"d1d3 a2a1 a3c1 a1c1 d3d1 c1d1","r":557,"t":"backRankMate endgame long mate mateIn3"},{"i":"VPI7M","f":"7k/5ppp/2qp4/4p3/Pp2NP2/1P4R1/6PP/Q1r4K w - - 1 35","m":"a1c1 c6c1","r":400,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"VPZ2s","f":"5rk1/6pp/p3p3/8/2ppq3/8/P5PP/1Q5K w - - 0 31","m":"b1e4 f8f1","r":544,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"VPe5N","f":"3r2k1/pq3pp1/4p2p/8/3rQ3/1P6/P1P2PPP/2R4K w - - 0 26","m":"e4b7 d4d1 c1d1 d8d1","r":422,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"VPlU1","f":"5rk1/1pq2ppp/8/p2R4/3P4/PP3Q2/5PPP/R1r3K1 w - - 1 23","m":"a1c1 c7c1 f3d1 c1d1","r":588,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VQ8mT","f":"6k1/pp3ppp/1q6/4p3/3nP3/P4P2/1P2r1PP/1KQ3R1 b - - 3 23","m":"d4b3 c1c8 b6d8 c8d8","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VQhLv","f":"1r5k/6p1/7p/8/r1P5/1P1R4/5PPP/6K1 w - - 0 29","m":"b3a4 b8b1 d3d1 b1d1","r":471,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"VQnt3","f":"1rb3k1/5ppp/p4q2/P3Q3/8/2P3P1/4BP1P/3R2K1 b - - 0 28","m":"f6e5 d1d8 e5e8 d8e8","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VR0Ka","f":"4r1k1/pR3pbp/6p1/3P4/8/5N2/5PPP/4q1K1 w - - 3 25","m":"f3e1 e8e1","r":407,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VRCFv","f":"1kr5/p4pp1/1p5p/8/3Pp3/BQ2P3/P4PPP/2q3K1 w - - 2 28","m":"a3c1 c8c1 b3d1 c1d1","r":593,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VRT4f","f":"1r5k/1Q4pp/p4p2/5b2/2RPp3/3nP3/1P3PPP/2R3K1 b - - 0 25","m":"b8b7 c4c8 f5c8 c1c8","r":541,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"VRUkg","f":"4r1k1/pp3ppp/8/8/1P1b4/B2q4/P1Q2PPP/7K w - - 0 29","m":"c2d3 e8e1 d3f1 e1f1","r":502,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VRcp6","f":"2rr2k1/5p1p/p1b1p1p1/8/2P1P3/1B3PQ1/P4RPP/3q3K w - - 0 29","m":"b3d1 d8d1 f2f1 d1f1","r":518,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VRvPr","f":"1rb3k1/p3n3/4p2p/3p4/2p2rn1/1PP5/P1B1RNPP/RN5K w - - 0 30","m":"f2g4 f4f1","r":457,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"VSE3Q","f":"2r4k/p1r3pp/n7/5p2/1p1R4/5N1P/PP3PP1/3R2K1 b - - 3 32","m":"a6c5 d4d8 c8d8 d1d8","r":561,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VSEje","f":"rnb2Q1k/ppp3pp/3q4/4r1B1/3N4/2P5/P1P3PP/R4RK1 b - - 2 15","m":"d6f8 f1f8","r":552,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"VSJaR","f":"rn1r2k1/pp3ppp/2p2p2/2P5/3Q4/5B1P/PP3PP1/R3R1K1 b - - 0 17","m":"d8d4 e1e8","r":550,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VSRhQ","f":"8/2prP2k/1p5p/8/p7/8/5PPP/6K1 w - - 0 41","m":"e7e8q d7d1 e8e1 d1e1","r":463,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"VSTWV","f":"3r1rk1/p3bppp/1p1q1n2/2p1pB2/4P3/6Q1/PPPB1PPP/R2R2K1 w - - 4 20","m":"d2h6 d6d1 a1d1 d8d1","r":594,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"VSY0i","f":"2R5/5ppk/p2rp2p/1p6/PP2n3/6N1/3r1PPP/R5K1 w - - 1 27","m":"g3e4 d2d1 a1d1 d6d1","r":490,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VSwN1","f":"4rrk1/1p4pp/p7/8/2Rpp3/1P4Q1/P5PP/4Rq1K w - - 2 29","m":"e1f1 f8f1","r":560,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"VSzu3","f":"rn1b2k1/1p3ppp/p2B1N2/2p5/8/5N1P/PPP2PP1/4R1K1 b - - 0 18","m":"d8f6 e1e8","r":556,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VTBAk","f":"3r2k1/pp3pp1/2p2bp1/8/8/1P4R1/P1P1rRPP/7K w - - 0 25","m":"f2e2 d8d1 e2e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VTHzT","f":"1k6/p5pp/1p1p1p2/1N1q4/1P2p2N/8/r5PP/3R3K w - - 0 27","m":"d1d5 a2a1 d5d1 a1d1","r":568,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VTPgA","f":"r4Q1k/pp4pp/1qp5/4b3/8/2N5/PPP3PP/R4R1K b - - 2 21","m":"a8f8 f1f8","r":517,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VTeI5","f":"6k1/pp3pp1/1b5p/4p3/1P6/P1PqP3/1Q3PPP/N2r1RK1 w - - 0 27","m":"f1d1 d3d1","r":572,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VV2dy","f":"1k2r3/pp6/3Q4/2p4p/NbP2p2/1P2q2P/P5P1/3R3K b - - 4 31","m":"b8a8 d6d8 e8d8 d1d8","r":585,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"VV53X","f":"2br2k1/p4ppp/3Q4/8/2p5/5N2/qPP1RPPP/2K4R b - - 3 16","m":"d8d6 e2e8","r":482,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VVTNT","f":"4r1k1/p4R2/2p3P1/2rp3N/3b4/P7/6PP/2R4K w - - 0 31","m":"c1c5 e8e1 f7f1 e1f1","r":582,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VVTto","f":"4r1k1/5ppp/8/p7/3Qn3/5qP1/P4P1P/3R2K1 b - - 6 25","m":"e8b8 d4d8 b8d8 d1d8","r":570,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"VVkxc","f":"r4rk1/1pp3pp/1p2p3/4p2Q/2BnP2q/3P4/PPP3PP/R1B4K w - - 4 18","m":"h5h4 f8f1","r":564,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"VW8lH","f":"3rQ1k1/pp3ppp/2p5/6P1/3q1P2/8/PP1B4/2RKR3 b - - 3 35","m":"d8e8 e1e8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VWD2P","f":"6k1/5ppp/p7/4P3/PnRb1P2/1P4P1/3r3P/R6K b - - 0 28","m":"d4a1 c4c8 d2d8 c8d8","r":555,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VWDH5","f":"r1b2rk1/1pp3pp/3P2n1/p5q1/2B1p3/7P/PPP2QP1/R2N1RK1 b - - 0 19","m":"g8h8 f2f8 g6f8 f1f8","r":517,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"VWbob","f":"2r3k1/1pr1qppQ/p2p2n1/4p1P1/P3PP2/3P2P1/1P3RK1/7R b - - 8 26","m":"g8f8 h7h8 g6h8 h1h8","r":517,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"VWduK","f":"4r1k1/1p2rpbp/p1pq4/3nP3/1P1P1pp1/PQ6/5PPP/2R1R1K1 w - - 0 30","m":"e5d6 e7e1 c1e1 e8e1","r":470,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"VWeOl","f":"3r4/1R4p1/2rp1k1p/5p2/8/4RN2/1P3PPP/6K1 w - - 2 27","m":"f3d4 c6c1 e3e1 c1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VXQLR","f":"4R2k/pp4pp/5q2/3N3n/2r5/8/PPP3PP/6K1 b - - 1 24","m":"f6f8 e8f8","r":495,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"VXxb4","f":"r5k1/pR3ppp/8/5p2/P1p5/4P2K/P2r2PP/1R6 b - - 1 26","m":"d2a2 b7b8 a8b8 b1b8","r":583,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"VY0Gn","f":"5qk1/1b4pp/p3B3/4p3/8/1P5P/P1P3P1/5RK1 b - - 0 26","m":"g8h8 f1f8","r":502,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"VYfNN","f":"6k1/p4ppp/8/2RPPr2/8/8/6PP/6K1 b - - 0 41","m":"f5e5 c5c8 e5e8 c8e8","r":441,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"VZ7uw","f":"5r1k/3p4/7p/8/1q2Q3/8/2P3PP/b6K w - - 0 36","m":"e4b4 f8f1","r":470,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Va9l4","f":"r1b2rk1/p1Bn2pp/2p5/2bp4/3Np3/2Q5/PPP3PP/RN2Rq1K w - - 2 17","m":"e1f1 f8f1","r":588,"t":"backRankMate mate mateIn1 oneMove opening"},{"i":"VavhF","f":"5r1k/p4Qpp/1p6/2p5/2P2P2/6P1/7P/4R2K b - - 0 31","m":"f8f7 e1e8 f7f8 e8f8","r":413,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Vb5KX","f":"7k/p5pp/5r2/2P5/1P2Pq2/P4p1P/B4P2/3R3K b - - 2 32","m":"f6h6 d1d8 f4f8 d8f8","r":553,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Vb8Rp","f":"3r3k/3R1Rpp/p2p4/1p1P4/1P1n2r1/P7/6B1/6K1 b - - 4 46","m":"d8d7 f7f8","r":491,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Vbfpz","f":"8/pk5p/N7/1P2pp2/2P5/5P2/r5PP/4R2K w - - 2 36","m":"e1e5 a2a1 e5e1 a1e1","r":432,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VbvDs","f":"2kr3r/p1p1qpp1/2p2n1p/8/8/8/PPP2PPP/R1B1R1K1 w - - 0 18","m":"e1e7 d8d1 e7e1 d1e1","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VcTt4","f":"7k/1p1q1ppp/p1p3B1/3p4/3P4/P1P1P1QP/1P4P1/6K1 b - - 0 28","m":"f7g6 g3b8 d7c8 b8c8","r":442,"t":"backRankMate endgame mate mateIn2 queenEndgame short"},{"i":"Vd17G","f":"r1r3k1/3R1ppp/p3p3/1n2P3/2B5/8/3R1BKP/8 b - - 0 26","m":"c8c4 d7d8 a8d8 d2d8","r":482,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VdPdl","f":"k2rn3/p7/1pR5/6p1/7p/P1P3BP/1PPr1PP1/2R3K1 w - - 0 27","m":"g3h2 d2d1 c1d1 d8d1","r":529,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VdRN7","f":"2r5/pp1k1ppp/4p3/3p4/3B4/P2n4/5PPP/3R2K1 w - - 2 21","m":"d1d3 c8c1 d3d1 c1d1","r":474,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Vdfav","f":"4r1k1/1pp1Rppp/p5b1/8/2N5/2P5/PP3PPP/3R2K1 b - - 0 20","m":"e8e7 d1d8 e7e8 d8e8","r":478,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Veovn","f":"6k1/pp4p1/2p3Np/8/6p1/6P1/P1P1r1PP/1R5K w - - 1 29","m":"b1b2 e2e1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Vf89x","f":"6k1/pp3ppp/4p3/8/8/1PR2P1P/r2r1P2/5RK1 b - - 1 23","m":"d2d7 c3c8 d7d8 c8d8","r":415,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"VfZV6","f":"1r4k1/pp2Rppp/2prn3/2Np4/8/1P4P1/P1P2P1P/4R1K1 b - - 4 27","m":"e6c5 e7e8 b8e8 e1e8","r":537,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VftAo","f":"2rr2k1/1p2Bppp/p4b2/3Rp3/1P2P3/P4b1P/4QPP1/3R2K1 b - - 0 24","m":"f3e2 d5d8 c8d8 d1d8","r":572,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Vg4ih","f":"1rR3k1/1r3ppp/4p3/b2p4/3P4/3KP3/PP6/2RN4 b - - 9 40","m":"b8c8 c1c8 a5d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VgAt4","f":"5rk1/5ppp/3p4/3P4/4q3/Q1P2R2/Pr3PPP/4R1K1 w - - 2 23","m":"e1e4 b2b1 a3c1 b1c1 e4e1 c1e1","r":432,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"VgOaG","f":"k2R4/pp6/2n5/2R1p1p1/P5P1/2P4P/r4PK1/8 b - - 0 40","m":"c6d8 c5c8","r":599,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"VgXmI","f":"3r1r2/1pp2PR1/1k2p1Q1/8/p3b3/8/P4PPP/6K1 w - - 9 35","m":"g6e4 d8d1 e4e1 d1e1","r":530,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"VgeXY","f":"5r1k/p1p3pp/1p6/8/P1P5/5Q2/8/3R3K b - - 0 34","m":"f8f3 d1d8 f3f8 d8f8","r":462,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Vgvgx","f":"6k1/5ppp/Nb2p3/1p1bP1P1/7P/1P3r2/4K3/2R5 b - - 4 39","m":"f3h3 c1c8 b6d8 c8d8","r":563,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Vh1U4","f":"7k/ppp1r1pp/8/nB1nb3/4p2P/1PN5/PKP2PP1/3R4 b - - 0 24","m":"d5c3 d1d8 e7e8 d8e8","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VhKrG","f":"3r2k1/5ppp/B4n2/8/b3p3/B3P3/5PPP/2R3K1 w - - 0 25","m":"c1c4 d8d1","r":526,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VhPPH","f":"2r1kb1R/pp2n3/3p2p1/3Pp3/8/3PR3/PP3PPP/6K1 w - - 7 23","m":"e3f3 c8c1","r":437,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VhqI9","f":"1r1r1Q1k/6pp/p3p3/8/6q1/2N5/P1P2RbP/5RK1 b - - 1 28","m":"d8f8 f2f8 b8f8 f1f8","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ViL9D","f":"2r3k1/pbq2ppp/1p3n2/8/8/1P3NP1/P3QPBP/4R1K1 b - - 3 23","m":"c8e8 e2e8 f6e8 e1e8","r":418,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ViXEM","f":"5rk1/pQ4pp/2n1p3/8/5q2/8/PPP3PP/R6K w - - 1 20","m":"b7c6 f4f1 a1f1 f8f1","r":572,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Vicvs","f":"1k6/ppp1b1p1/3p4/1B2p3/4P1P1/6r1/PPP1K3/7R b - - 3 29","m":"g3g4 h1h8 e7d8 h8d8","r":573,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Viw53","f":"r1k5/1p2R3/p1pP3p/8/3r4/8/P4PPP/1R4K1 w - - 2 28","m":"b1b7 d4d1 e7e1 d1e1","r":422,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"VjIkv","f":"1kr4r/p5p1/1p2p2p/4Pp2/PP1p4/2R5/5PPP/RN4K1 w - - 0 27","m":"c3d3 c8c1 d3d1 c1d1","r":459,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VjLNU","f":"2r3k1/R4bpp/4pn2/4Np2/2rP4/4P3/1P3PPP/1R4K1 w - - 0 31","m":"a7f7 c4c1 b1c1 c8c1","r":468,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Vjyz7","f":"2krr3/ppp2ppp/8/8/QP1B4/P7/5PPP/3Rq1KR w - - 3 20","m":"d1e1 e8e1","r":588,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Vk6ZK","f":"3r2k1/5pbp/p5p1/2N5/P1p1Q1P1/2P5/1P4PP/R2r3K w - - 1 35","m":"a1d1 d8d1 e4e1 d1e1","r":528,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VkjMg","f":"6k1/1p3ppp/8/p1nqp2P/P7/5PK1/1P6/3R1R2 b - - 1 30","m":"d5e6 d1d8 e6e8 d8e8","r":562,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VkraI","f":"r2r2k1/pp1Q1ppp/8/4R3/8/6P1/5P1P/4R1K1 b - - 0 24","m":"d8d7 e5e8 a8e8 e1e8","r":595,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Vl1T7","f":"rQ4k1/5ppp/4p3/3p4/pR1P4/2q1P3/P4PPP/6K1 b - - 1 26","m":"a8b8 b4b8 c3c8 b8c8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"VlnP2","f":"4r1k1/pp3ppp/3N4/3P4/2P2P2/1P2r3/P5PP/2q2R1K w - - 0 26","m":"f1c1 e3e1 c1e1 e8e1","r":489,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Vm4wM","f":"r3r2k/pp3p1p/2n2p2/3p4/3Pq3/P1P2b2/R3BPPP/3QR1K1 w - - 0 18","m":"e2f3 e4e1 d1e1 e8e1","r":510,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Vm7JK","f":"4r2k/p1NR2pp/1p3b2/2p2p2/4p3/2P1P3/PP3PPP/6K1 b - - 3 21","m":"e8e7 d7d8 e7e8 d8e8","r":587,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VnWn2","f":"4r2k/p5pp/3B1p2/8/Q7/1P1qN1KP/P2b1PP1/4r3 b - - 9 41","m":"d2e3 a4e8","r":452,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"VoB9p","f":"6k1/4Pppp/8/ppr5/1b2r3/1Pp3P1/5P1P/R2R2K1 b - - 0 29","m":"e4e7 d1d8 e7e8 d8e8","r":459,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Vouwj","f":"r7/1p1b1R1Q/1k2p3/2b5/8/3B4/PPPr2PP/7K w - - 5 33","m":"f7d7 d2d1 d3f1 d1f1","r":597,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Vp1w4","f":"rkb1r3/p3qpR1/B1Rn3p/Q2p4/3P4/8/PP3PPP/6K1 w - - 3 31","m":"a6c8 e7e1 a5e1 e8e1","r":586,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"VpDKF","f":"6k1/pp1r1ppp/4b3/2p5/2P5/2P5/P1K1BPPP/3R4 b - - 1 18","m":"d7e7 d1d8 e7e8 d8e8","r":547,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Vpvd1","f":"q1Q2b1k/1p3Rpp/8/3p4/p2P4/1P2P3/P4RPP/6K1 b - - 0 28","m":"a8c8 f7f8 c8f8 f2f8","r":560,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"Vq8FM","f":"r5k1/1R3R2/7p/2P5/1p6/P3b3/6PP/7K w - - 0 30","m":"a3b4 a8a1 f7f1 a1f1","r":556,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VqBGe","f":"2kr3r/ppp4p/2p2p2/8/5B2/N7/PP2qPPP/4R1K1 w - - 0 22","m":"e1e2 d8d1 e2e1 d1e1","r":427,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VqIIz","f":"6k1/3r1ppp/2p1p3/1pq1Pb2/8/1P2QN2/P4PPP/6K1 w - - 0 29","m":"e3c5 d7d1 f3e1 d1e1","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Vr5oy","f":"6k1/1p3ppp/p6b/7P/4RPb1/1P2K3/P1rp4/2rN3R b - - 1 34","m":"c1d1 e4e8","r":535,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VrQQR","f":"3r2k1/1pp2ppp/8/5b2/Q7/N7/PPPr1PPP/R5K1 w - - 3 20","m":"a4f4 d2d1 a1d1 d8d1","r":545,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VrZSz","f":"6k1/2p2p1p/prP3p1/8/P1R1r3/2P5/5PPP/6K1 w - - 0 27","m":"c4e4 b6b1 e4e1 b1e1","r":483,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Vrg2w","f":"2r1r1k1/5p1p/p5pQ/5p2/1p6/5P2/PP1R1P1P/K1qR4 w - - 2 29","m":"d1c1 c8c1","r":519,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"VrrVd","f":"2r2k2/R3ppb1/p7/1p4p1/8/1P2P1BP/P4P2/6K1 b - - 1 28","m":"c8c6 a7a8 c6c8 a8c8","r":504,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VrwI6","f":"6k1/5p2/n2p1Q2/p2Pp2b/P1r1P3/2r2P2/6PP/R6K w - - 0 38","m":"f6d6 c3c1 a1c1 c4c1","r":481,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Vryba","f":"4r2k/1pp1r2p/p4ppq/3p4/6Q1/1PP5/P2B2PP/R3R2K w - - 3 33","m":"d2h6 e7e1 a1e1 e8e1","r":585,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VsBUf","f":"3r2k1/3R1ppp/p3p3/8/p7/P5P1/1r2PPBP/2R3K1 b - - 0 22","m":"d8d7 c1c8 d7d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VsPIv","f":"k5r1/pp1N3p/5pr1/qB1p4/3Pp3/b1Q1P2b/2R2RPP/6K1 b - - 1 29","m":"a5b5 c3c8 g8c8 c2c8","r":510,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"VsPW6","f":"r1b3k1/pp2Bppp/4p3/4Q3/2n5/8/PP3PPP/3R2K1 b - - 0 18","m":"c4e5 d1d8","r":479,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VsUgO","f":"2br2k1/6pp/p4p2/4p3/4P3/3r1BQ1/5RPP/R2q3K w - - 2 32","m":"a1d1 d3d1 f3d1 d8d1 f2f1 d1f1","r":456,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"VsoKg","f":"2R1r2k/q5pp/3rp3/5p2/1PQ2P2/5KPP/2R5/8 b - - 6 34","m":"e8c8 c4c8 d6d8 c8d8","r":507,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VsyQw","f":"B6k/p2R2pp/1p6/2p2p1P/4rq2/P7/1P2Q1P1/1K5R b - - 0 29","m":"e4e2 d7d8 e2e8 d8e8","r":564,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VtLzT","f":"3r2k1/pp3ppp/4B3/8/3P1Q2/Pq6/5PPP/R2r2K1 w - - 1 23","m":"a1d1 b3d1","r":504,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VteJR","f":"1k1R1r2/ppp1r2p/6p1/8/4N1B1/P4PP1/1K5P/3R4 b - - 3 28","m":"f8d8 d1d8","r":513,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"VuUMK","f":"2Rr2k1/4Qppp/4p3/3r4/8/8/5PPP/2q3K1 w - - 0 29","m":"c8c1 d5d1 c1d1 d8d1","r":474,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Vv0aB","f":"5k2/Q4prp/2p1b1p1/4q3/P7/5B2/1r3PPP/4R1K1 w - - 0 23","m":"e1e5 b2b1 f3d1 b1d1 e5e1 d1e1","r":434,"t":"backRankMate endgame long mate mateIn3"},{"i":"VvO2z","f":"5r1k/p1p3pp/8/8/7q/2P2Q2/PPP2P1P/4RR1K b - - 0 23","m":"f8f3 e1e8 f3f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"VvpdK","f":"k1r5/4q2p/6p1/8/5P2/8/P5PP/4R2K w - - 0 35","m":"e1e7 c8c1 e7e1 c1e1","r":427,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"VwGYL","f":"2r3k1/Rpr4p/4pp2/3p4/3n4/1PB5/1P3PPP/R5K1 w - - 0 23","m":"c3d4 c7c1 a1c1 c8c1","r":520,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VwMFp","f":"3r1rk1/pp3p1p/6p1/4P1Qn/2q5/P1P1NP2/5bPP/1RB4K w - - 0 24","m":"e3c4 d8d1","r":463,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Vwg3J","f":"5rk1/pR3p1p/3p1qp1/3P4/4P3/2r5/P5PP/5R1K w - - 0 24","m":"f1f6 c3c1 f6f1 c1f1","r":462,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Vx48c","f":"8/4kp1p/4p1p1/8/2b5/2r5/1R1N1PPP/6K1 w - - 0 31","m":"d2c4 c3c1","r":572,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Vx4xo","f":"r1bq3k/ppp3pp/2n5/3p2N1/2P1pR2/1P6/P1P3PP/R2Q2K1 b - - 0 14","m":"d8g5 f4f8","r":565,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Vx8gs","f":"2r3k1/p4ppp/2B5/3p3b/2pP4/2P3P1/P2B2PP/1R4K1 b - - 0 28","m":"c8c6 b1b8 c6c8 b8c8","r":474,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VxJrH","f":"1k5r/ppp3p1/b3B3/3R2p1/4P3/KP1nbP2/P5PP/3R4 b - - 8 28","m":"d3c5 d5d8 h8d8 d1d8","r":546,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"VxdXq","f":"3r2k1/p4ppp/1p3b2/2p2bn1/8/2P2NB1/PP2R1PP/2K1R3 b - - 6 20","m":"g5f3 e2e8 d8e8 e1e8","r":531,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Vxrqd","f":"6k1/5ppp/3q4/1K2p3/8/7P/5P1P/R6R b - - 0 39","m":"d6c7 a1a8 c7b8 a8b8","r":574,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"VySbD","f":"3r2k1/p5p1/5n1p/1bp1r3/8/2P5/PP3PPP/RN2R1K1 w - - 0 20","m":"e1e5 d8d1 e5e1 d1e1","r":407,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Vyp1T","f":"3r2k1/3r1ppp/4pn2/pP6/P7/5Q2/6PP/R2q3K w - - 0 31","m":"a1d1 d7d1 f3d1 d8d1","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"VzNoh","f":"7r/pppk3p/3bNp2/q2Pn3/8/7R/P1Q3PP/1R5K w - - 0 31","m":"b1b7 a5e1","r":555,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"Vzabh","f":"6k1/5p1p/p4qp1/2p5/8/2Q5/PrP3PP/7K w - - 0 30","m":"c3f6 b2b1 f6f1 b1f1","r":591,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"W03Vs","f":"r3r1k1/2q2ppp/2p3b1/p1pp4/4n3/1P2QN1P/PNPP1PP1/2R1R1K1 b - - 0 19","m":"e4g3 e3e8 a8e8 e1e8","r":517,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"W0W4u","f":"r7/2k1bppp/8/3RPp2/1P6/N1P5/5PPP/6K1 w - - 3 26","m":"a3c4 a8a1 d5d1 a1d1","r":471,"t":"backRankMate endgame mate mateIn2 short"},{"i":"W0sHX","f":"8/6kp/1p4p1/4P3/1P4P1/1r6/6PP/4R2K w - - 1 39","m":"e1e4 b3b1 e4e1 b1e1","r":470,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"W11tT","f":"r2B3k/p1p3pp/2P3r1/8/6Q1/2Pb2N1/3b1PpP/2R1R1K1 b - - 0 30","m":"g6g4 e1e8","r":472,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"W28s3","f":"3r2k1/1pq1bpp1/p3pn1p/8/bP6/4PN2/BQ3PPP/2R3K1 w - - 0 23","m":"c1c7 d8d1 f3e1 d1e1","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"W2Axw","f":"3Q2k1/ppp2ppp/5q2/8/4R3/7P/Pb3PP1/4R1K1 b - - 0 23","m":"f6d8 e4e8 d8e8 e1e8","r":503,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"W2ICZ","f":"r5k1/2p2ppp/2Ppr3/p1q5/5Q2/8/PPR3PP/2K2R2 b - - 3 25","m":"c5d5 f4f7 g8h8 f7f8 a8f8 f1f8","r":590,"t":"backRankMate endgame long mate mateIn3 sacrifice"},{"i":"W31AB","f":"3r3k/p5pp/8/5Rq1/2B5/1P6/4R1PP/7K w - - 3 32","m":"f5g5 d8d1 e2e1 d1e1 c4f1 e1f1","r":426,"t":"backRankMate endgame long mate mateIn3"},{"i":"W3IUn","f":"k2rRbr1/pp6/2p2p1p/3p4/3P1BPp/2N2P2/PPP5/4R1K1 b - - 0 23","m":"d8e8 e1e8","r":541,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"W3LtD","f":"2r3k1/r2q1ppp/1p6/3P1Q2/P1P5/1P2R1P1/5P1P/4R1K1 b - - 2 32","m":"d7f5 e3e8 c8e8 e1e8","r":479,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"W3RUn","f":"3Qq1k1/5ppp/8/p7/rBP5/P3P1P1/7P/3R2K1 b - - 1 26","m":"e8d8 d1d8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"W4I1y","f":"2r1r1k1/Qp3pp1/8/3p2qp/1R1P4/4P1B1/5PPP/2R3K1 w - - 0 30","m":"b4b7 c8c1","r":486,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"W4Yyi","f":"1rr1k3/p5pQ/4p3/2npP3/5R2/8/P5PP/7K w - - 2 33","m":"h7g7 b8b1 f4f1 b1f1","r":576,"t":"backRankMate endgame mate mateIn2 short"},{"i":"W4hLp","f":"r3r1k1/p3qppp/2p3n1/2pp4/P3PB2/5Q2/1PP2PPP/3RR1K1 w - - 0 17","m":"e4d5 e7e1 d1e1 e8e1","r":500,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"W53mh","f":"3r2k1/6bp/p4pp1/1p2pn2/1P2q3/2P3BQ/5PPP/4R1K1 w - - 0 26","m":"e1e4 d8d1 e4e1 d1e1","r":542,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"W5AL8","f":"rr3Q1k/6pp/3Pp2q/p7/2PP1R2/8/p5PP/5RK1 b - - 2 28","m":"b8f8 f4f8 a8f8 f1f8","r":455,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"W5ga0","f":"3r1Q1k/6pp/8/3pq3/2p2R2/2P3P1/PP4PP/6K1 b - - 3 30","m":"d8f8 f4f8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"W685R","f":"8/5kpp/1p3p2/5p2/1Pr5/3p4/P2R1PPP/6K1 w - - 0 30","m":"d2d3 c4c1 d3d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"W6M4t","f":"1k5r/3qnppp/1B2p3/1BQ5/8/2N5/rP3PPP/6K1 w - - 0 21","m":"b5d7 a2a1 c3b1 a1b1 c5c1 b1c1","r":478,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"W78Iv","f":"6k1/8/1b1p2pp/1B1Pp3/pP2Pr2/P7/4R1PP/6K1 w - - 3 36","m":"g1h1 f4f1","r":475,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"W7Djf","f":"5r1k/p5pp/3R2p1/2p1P3/5QP1/6KP/P1P2R2/4q3 b - - 0 34","m":"f8f4 d6d8 f4f8 d8f8","r":568,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"W7Mow","f":"7k/pp4pp/8/2p5/3q4/3P2p1/PPP2r2/2K1R1R1 b - - 7 35","m":"g3g2 e1e8 f2f8 e8f8","r":517,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"W7alA","f":"3r2k1/5ppp/8/8/8/1P2R3/2Pr2PP/4R1K1 b - - 0 35","m":"d2c2 e3e8 d8e8 e1e8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"W7reU","f":"3r4/6pp/p4pk1/8/2N1b3/1PP3B1/P4PPP/4R1K1 w - - 1 28","m":"e1e4 d8d1 e4e1 d1e1","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"W8V0P","f":"k1Qr2nr/pp3p1p/8/3pPppN/6q1/P4N2/5PPP/R1R3K1 b - - 7 21","m":"d8c8 c1c8","r":511,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"W8kio","f":"1k1Qr3/ppp3p1/8/1qP3Np/1Pb5/2P4P/5PP1/3R2K1 b - - 3 26","m":"e8d8 d1d8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"W8nmu","f":"4r1k1/pp2qpbp/3p2p1/2pP4/2P3Q1/8/PP1B1PPP/4rRK1 w - - 0 20","m":"f1e1 e7e1 d2e1 e8e1","r":451,"t":"backRankMate endgame mate mateIn2 short"},{"i":"W9Zg2","f":"r7/3R1ppp/2P1pk2/8/8/8/5PPP/6K1 w - - 3 35","m":"c6c7 a8a1 d7d1 a1d1","r":568,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"W9a7K","f":"6k1/p4ppp/8/4n3/2B5/8/PP2rPPP/3R2K1 b - - 0 22","m":"e5c4 d1d8 e2e8 d8e8","r":447,"t":"backRankMate endgame mate mateIn2 short"},{"i":"W9uwc","f":"6k1/p4ppp/1p3q2/8/P3p3/1P1Q3P/5PP1/R3R1K1 b - - 0 30","m":"e4d3 e1e8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"WA4ZD","f":"6k1/5pp1/3r3p/8/2P1p3/8/2r2PPP/3R2K1 w - - 0 28","m":"d1d6 c2c1 d6d1 c1d1","r":409,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"WAs3F","f":"3r2k1/pb1r1ppp/1pn1p3/2b5/2N5/1P2PB2/PB3PPP/2RR2K1 w - - 2 18","m":"f3c6 d7d1 c1d1 d8d1","r":575,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"WBEjG","f":"r6k/pR6/2p1p2b/8/4P1nR/2N3P1/PPP2r2/1K6 w - - 0 26","m":"h4g4 f2f1 c3d1 f1d1","r":511,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WBVlt","f":"1k3r2/p1pn2pp/1p1p4/8/2P3Q1/4R3/P5PP/3R1q1K w - - 14 31","m":"d1f1 f8f1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WCXw2","f":"1r2Q2k/p1p3pp/q1p2p2/8/Pn6/1P1P3P/1BP2PP1/4R1K1 b - - 4 25","m":"b8e8 e1e8","r":460,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WD3np","f":"5k2/pp1bpp2/3p2pQ/3P4/3q2P1/5P2/Pnr1B1K1/7R b - - 5 27","m":"f8e8 h6h8 d4h8 h1h8","r":590,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"WD8zt","f":"3Q1rk1/5ppp/p1p5/8/2P1R3/8/q4PPP/4R1K1 b - - 0 22","m":"f8d8 e4e8 d8e8 e1e8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WDHey","f":"8/5pk1/1p1pr1p1/p1pbr1p1/P1P1P3/1P6/2B3PP/3RR2K w - - 0 30","m":"e4d5 e5e1 d1e1 e6e1","r":484,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WDR4n","f":"2r3k1/p4ppb/7p/4PP2/8/6P1/1qRQ1R1P/6K1 b - - 0 27","m":"c8c2 d2d8","r":578,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WDzJY","f":"r7/B4Rpp/2k1p3/2bn4/8/8/4NPPP/6K1 w - - 1 29","m":"a7c5 a8a1 e2c1 a1c1","r":541,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WEItP","f":"2r3k1/4qpp1/p4n1Q/1p1P1P2/2P5/1P4R1/2P3PP/3Rr2K w - - 1 28","m":"d1e1 e7e1","r":420,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WEUs2","f":"4r1k1/p3r1pp/P1p1q3/3n4/1Q6/6B1/5PPP/R1R3K1 w - - 3 30","m":"b4c5 e6e1 c1e1 e7e1 a1e1 e8e1","r":542,"t":"backRankMate long mate mateIn3 middlegame sacrifice"},{"i":"WEcIP","f":"4r1k1/5pp1/p7/4r3/8/Q7/PP4P1/K2R3q w - - 0 33","m":"d1h1 e5e1 h1e1 e8e1","r":545,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WEmJD","f":"3r3k/6q1/p6p/4R1pN/1p5B/8/PPP2PPP/6K1 w - - 0 29","m":"h5g7 d8d1 e5e1 d1e1","r":588,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WFN5X","f":"1n3r2/p5k1/2p2q1p/2Pp4/P2Pp1B1/4p3/2Q2PPP/R6K w - - 0 28","m":"f2e3 f6f1 a1f1 f8f1","r":513,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"WFcGP","f":"1qR2rk1/5ppb/4p2p/8/3P4/2Q1PP2/6PP/2R3K1 b - - 1 28","m":"f8c8 c3c8 b8c8 c1c8","r":437,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WFvLO","f":"r1R4k/p2b2pp/6r1/1p1p1p2/1P1P4/P3PPqP/2Q3P1/2R3K1 b - - 1 30","m":"d7c8 c2c8 a8c8 c1c8","r":504,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WGruP","f":"2rr4/6k1/3n1pp1/1p1Pp2p/1q2P3/R4P2/R5PP/1Q5K w - - 0 40","m":"b1b4 c8c1 b4e1 c1e1","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WHBsW","f":"1r1Q3k/6pp/1p6/4q3/p7/2P3PP/1P3P1K/3R4 b - - 2 42","m":"b8d8 d1d8 e5e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WHHv3","f":"6k1/1p3pbp/6p1/3rp3/8/P1r1P1B1/P4PPP/3R2K1 w - - 0 34","m":"d1d5 c3c1 d5d1 c1d1","r":432,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WHUK2","f":"3r2k1/p1p1bppp/1p6/8/4N3/P3P3/1RP2PPP/R2r2K1 w - - 1 24","m":"a1d1 d8d1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WHbjq","f":"7k/pp4pp/2n2p2/8/3r1B2/7P/PP3PP1/4R1K1 b - - 1 23","m":"d4d7 e1e8","r":462,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WHeeh","f":"3r4/p1p3k1/1pn1p3/5p2/2P2R1p/1P5R/P5PP/7K w - - 3 30","m":"h3h4 d8d1 f4f1 d1f1","r":461,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WIQl8","f":"6k1/pp3ppp/8/8/1PrQP3/P4P2/6PP/2R2b1K b - - 0 25","m":"c4d4 c1c8 d4d8 c8d8","r":534,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WIT8Y","f":"n1Q2rk1/q2r1ppp/p3p3/1p6/4PB2/1P4P1/P4PBP/2R2RK1 b - - 0 22","m":"f8c8 c1c8 d7d8 c8d8","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"WIpTc","f":"6k1/5p1p/4p1p1/8/8/p2P4/1rP3PP/R6K w - - 2 34","m":"a1a3 b2b1","r":573,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"WJMhA","f":"r1b1r2k/ppb3pp/5n2/3B4/2PP4/P1N5/6PP/4RRK1 b - - 5 21","m":"c7b6 e1e8 f6e8 f1f8","r":502,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"WJmFP","f":"2kr1b1r/ppp2ppp/5n2/3Np3/4P3/8/PPP2PPP/R1BR2K1 w - - 4 13","m":"d5f6 d8d1","r":455,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"WJmNg","f":"r5r1/4kp2/p2pp3/2p5/N3b2R/1P6/PBPP4/2K5 w - - 0 26","m":"h4e4 g8g1 e4e1 g1e1","r":528,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WK1mC","f":"3r2k1/5ppp/p3p3/1p2P3/3Q4/P1R5/1P3PPP/1K6 b - - 0 24","m":"d8d4 c3c8 d4d8 c8d8","r":440,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"WKmeX","f":"8/5k2/1p1p1p2/4p3/4r3/8/5PPP/1R4K1 w - - 0 34","m":"b1b6 e4e1","r":500,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"WLthM","f":"8/2p4p/p1p3p1/6k1/7q/5Q1R/2r3PP/7K w - - 12 32","m":"h3h4 c2c1 f3d1 c1d1","r":536,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WMlBs","f":"2r2Q1k/p5pp/8/2p5/2P1N3/P2q3P/6P1/5R1K b - - 1 35","m":"c8f8 f1f8","r":593,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WN40r","f":"r2Q2k1/pp2nppp/5q2/8/4PP2/8/bPP3PP/2KR1B1R b - - 2 17","m":"a8d8 d1d8","r":585,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"WNGEw","f":"4rbk1/5pp1/4qp1p/3p1Nn1/3P2Q1/2P5/3B1PPP/R5K1 w - - 1 26","m":"d2g5 e6e1 a1e1 e8e1","r":577,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"WNHn4","f":"2b2r1k/1p4pp/2p5/2rN4/4p3/1B2P3/6PP/1R3RK1 b - - 0 26","m":"c6d5 f1f8","r":580,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"WNfbz","f":"3qQ1k1/p2r1ppp/2p2b2/8/8/8/PPPB1PPP/3RR1K1 b - - 0 19","m":"d8e8 e1e8","r":401,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WNoXO","f":"6k1/2p2ppp/p2p4/1P6/2nP4/2P4P/1P2rPPK/R1B5 b - - 0 29","m":"a6b5 a1a8 e2e8 a8e8","r":567,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WOUn8","f":"4rnk1/8/5p1Q/p4Pp1/1b6/1P5R/6PP/3Rq2K w - - 2 48","m":"d1e1 e8e1","r":465,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"WOXQd","f":"1k5r/pp3pp1/2pQ2p1/8/6P1/8/PPP2q1P/2KR4 b - - 3 21","m":"b8a8 d6d8 h8d8 d1d8","r":493,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"WOpB0","f":"5Q2/5p1k/5qp1/pp5p/1P2B1b1/r7/6PP/5R1K w - - 0 38","m":"f1f6 a3a1 e4b1 a1b1 f6f1 b1f1","r":575,"t":"backRankMate endgame long mate mateIn3"},{"i":"WP8W3","f":"7k/1p4pp/p1p5/8/3Rq3/P3B3/1PP1KP2/8 b - - 0 42","m":"e4e5 d4d8 e5e8 d8e8","r":456,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WPjpl","f":"6k1/5ppp/p7/8/1pr1P3/P2RKP1P/1P4P1/8 b - - 0 27","m":"b4a3 d3d8","r":432,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"WPoGH","f":"3r2k1/5ppp/ppR1b3/3n4/8/PP5P/5PP1/3R2K1 b - - 1 26","m":"d8d7 c6c8 d7d8 c8d8","r":467,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WPuEi","f":"3r2k1/5pp1/pb2p2p/1p6/1P2Q3/P3P3/4qPPP/4R1K1 w - - 0 26","m":"e1e2 d8d1 e2e1 d1e1","r":511,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WQYGD","f":"1k6/ppp1R3/8/1P4q1/2N2Q2/P2P2P1/2P1K3/5r2 b - - 0 44","m":"f1f4 e7e8 g5d8 e8d8","r":507,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WQdjY","f":"2k4r/pp2bpp1/2p4p/N7/5B2/1PPr4/1P3PPP/RN4K1 w - - 0 19","m":"a5c4 d3d1","r":486,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"WQq9p","f":"3rr1k1/ppp1q1p1/5pQp/3P4/1P6/P5R1/5PPP/3R2K1 w - - 4 24","m":"g6h6 e7e1 d1e1 e8e1","r":561,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"WR4Sp","f":"2r3k1/p4p1p/1p2p1p1/3p4/P7/5P2/4Q1PP/R1r4K w - - 1 34","m":"a1c1 c8c1 e2d1 c1d1","r":423,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WRVTe","f":"3rk2r/p2q2pp/5p2/bp1BP3/4b3/1Q6/P3NPPP/B4K1R w k - 0 20","m":"d5e4 d7d1 b3d1 d8d1","r":532,"t":"backRankMate fork mate mateIn2 middlegame short"},{"i":"WRWtL","f":"3r2k1/pQ2bpp1/7p/2p1P3/5B2/8/5PPP/2q3K1 w - - 0 28","m":"f4c1 d8d1","r":439,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"WRYML","f":"3r2k1/R7/p7/1p6/2b5/P7/2B2RPP/3r3K w - - 3 36","m":"c2d1 d8d1 f2f1 d1f1","r":484,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WS5pG","f":"6k1/4rp1p/2B3p1/2p4P/6P1/8/PPP1r3/1K2qR1R w - - 3 30","m":"f1e1 e2e1 h1e1 e7e1","r":591,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WSNwl","f":"r5k1/5pbp/p7/5pQ1/4r3/2P5/PP3qPP/5R1K w - - 0 33","m":"f1f2 e4e1 f2f1 e1f1","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WSZCz","f":"3r4/1p3p1k/4n1pp/p2q4/8/1PP1R1NP/P1Q2PP1/5K2 w - - 12 40","m":"g3e2 d5d1 c2d1 d8d1","r":594,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WSy8P","f":"6k1/5ppp/p7/1p2r2q/2P1p3/2P1B2b/P4PP1/3RQ1K1 b - - 1 30","m":"h5g4 d1d8 e5e8 d8e8","r":584,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WT3fZ","f":"4Q2k/4r1pp/p7/2p5/3pR3/P7/2Pq1rPP/R6K b - - 1 29","m":"e7e8 e4e8 f2f8 e8f8","r":482,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WT7Ug","f":"r5k1/1p3ppp/pP2p3/P3P1P1/3R1P1P/1Q6/2qRK3/2r5 b - - 7 38","m":"c2b3 d4d8 a8d8 d2d8","r":493,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WT9LB","f":"3r2k1/p2qbppp/8/4p3/P7/1R3Q2/5PPP/R2r2K1 w - - 2 24","m":"a1d1 d7d1 f3d1 d8d1","r":520,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WTDNr","f":"6k1/1p4pp/p2r1pq1/3r4/8/NQ4B1/Pn3PPP/R5K1 w - - 2 29","m":"b3b2 d5d1 a1d1 d6d1","r":518,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"WTDZu","f":"5r2/ppp4Q/2k2q2/8/8/2P1b3/PP4PP/R4RK1 w - - 0 22","m":"g1h1 f6f1 a1f1 f8f1","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WTIwj","f":"3r4/p1n2pkp/2P3p1/8/2R5/1P6/P5PP/4R2K w - - 0 28","m":"e1e7 d8d1 e7e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WTP8Q","f":"6k1/5ppp/4pq2/3p4/3P1P2/1Q4P1/1b5P/6BK b - - 1 30","m":"b2d4 b3b8 f6d8 b8d8","r":533,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WTPWq","f":"7k/ppp1r1pp/2n5/8/8/2P5/P1PR2PP/2K5 b - - 3 22","m":"c6a5 d2d8 e7e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WTTBO","f":"1k1R2r1/ppp2p2/7p/8/2q5/P5PB/1P2PP1P/3R2K1 b - - 1 25","m":"g8d8 d1d8","r":433,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WTUxR","f":"3r2k1/p4ppp/1pp2b2/6B1/1P6/1qP2P2/1P2Q1PP/4R1K1 b - - 2 24","m":"b3d5 e2e8 d8e8 e1e8","r":569,"t":"backRankMate endgame master mate mateIn2 sacrifice short"},{"i":"WTYrv","f":"r2kr3/ppp2Qqp/1b6/8/1npP4/8/P4PPP/RN4K1 w - - 0 18","m":"f7g7 e8e1","r":478,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"WV2T6","f":"r2r1Q1k/2p3pp/p1qn4/2p1P3/P1Np4/1P1P1R2/2P4P/2B2RK1 b - - 0 26","m":"d8f8 f3f8 a8f8 f1f8","r":492,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"WVEfL","f":"2r3k1/2N2ppp/1Rp5/r4n2/8/P6P/5PP1/5RK1 b - - 0 29","m":"c8c7 b6b8 c7c8 b8c8","r":559,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WW0Yn","f":"3r3r/1pk2ppp/p1n5/2bR4/8/4PN2/PP3PPP/R1B3K1 w - - 1 16","m":"d5c5 d8d1 f3e1 d1e1","r":551,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"WW1TA","f":"2qr1Q1k/6pp/8/2p5/3rP3/3B1RP1/1P1K1R1P/8 b - - 2 34","m":"d8f8 f3f8 c8f8 f2f8","r":413,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"WWLoT","f":"r3r1k1/p1p3pp/2p1q3/2bp1R2/5PQ1/8/PPPB2PP/5R1K w - - 3 19","m":"f1e1 e6e1 d2e1 e8e1","r":506,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"WWc7E","f":"4r1k1/2pR1ppb/pb5p/7P/8/1PP3N1/P4PPK/8 b - - 2 34","m":"e8e6 d7d8 e6e8 d8e8","r":529,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WX91y","f":"r3Q1k1/p4ppp/1p6/2pP4/3p4/1P3N2/Pq1P1PPP/4R1K1 b - - 1 22","m":"a8e8 e1e8","r":436,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WXmwR","f":"Q3r2k/p2RNppp/1p6/2p5/6P1/4P2P/q7/3R2K1 b - - 0 34","m":"e8a8 d7d8 a8d8 d1d8","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WXuAO","f":"2r4k/5ppp/p7/1p2p3/1P1nPq2/P4Q1P/3R2P1/3R3K b - - 2 33","m":"d4f3 d2d8 c8d8 d1d8","r":566,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WXxjS","f":"r3R2k/ppp2Qpp/2p5/6q1/6n1/2Pb4/P4PP1/RN4K1 b - - 1 18","m":"a8e8 f7e8","r":584,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"WYJm7","f":"1r3k2/4n1pp/r1n1Qp2/p2ppN2/R7/2B1P3/2PP1PPP/Rq4K1 w - - 8 22","m":"a1b1 b8b1","r":528,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"WYkSl","f":"1k1r3r/2p2Bp1/5n1p/p1q5/Pp6/6Q1/1P2RPPP/2R3K1 w - - 0 27","m":"c1c5 d8d1 e2e1 d1e1","r":467,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"WZEp2","f":"3r3k/3qb1p1/B3Q2B/p3P3/npp5/4P3/5PPP/2R3K1 w - - 1 32","m":"e6g6 d7d1 c1d1 d8d1","r":541,"t":"backRankMate master mate mateIn2 middlegame sacrifice short"},{"i":"WZJf9","f":"4rk2/p2q1pbp/2p5/8/7Q/8/PPP2PPP/3R2K1 w - - 3 27","m":"d1d7 e8e1","r":487,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WZei7","f":"3r3k/1p1Q1ppp/3p4/1P1Pp3/8/6P1/5P1P/R5K1 b - - 0 34","m":"d8d7 a1a8 d7d8 a8d8","r":568,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"WZmU4","f":"2k2Q1r/pbpp4/1p2p3/6P1/3qP1pP/2N3P1/PPP3K1/4RR2 b - - 0 30","m":"h8f8 f1f8","r":455,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WZz7O","f":"4r1k1/pp4pp/6p1/3Rr3/8/P7/1P3PPP/3R2K1 w - - 0 23","m":"d5d7 e5e1 d1e1 e8e1","r":464,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Wa3RU","f":"4r1k1/1pp1qpbp/p1P3p1/8/8/2P2p2/PPQ1BPPP/3R2K1 w - - 0 22","m":"e2f3 e7e1 d1e1 e8e1","r":434,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"WaKom","f":"4r1k1/1pp2ppp/p7/8/8/8/P3QPPP/3R2K1 b - - 0 24","m":"e8e2 d1d8 e2e8 d8e8","r":521,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"WaPsf","f":"1r4k1/5p1p/2RP2p1/8/2np4/8/5PPP/6K1 w - - 0 36","m":"c6c4 b8b1 c4c1 b1c1","r":400,"t":"backRankMate endgame master mate mateIn2 rookEndgame short"},{"i":"Wb2p8","f":"2rr2k1/p2q3p/1p4pQ/2n2p2/2R1p3/BP2P3/P4PPP/2R3K1 w - - 4 24","m":"a3c5 d7d1 c1d1 d8d1","r":579,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"Wb6Q1","f":"4r1k1/r4ppp/1Rp5/p2p4/7P/2P1P3/P2K1PP1/7R b - - 0 22","m":"e8e6 b6b8 e6e8 b8e8","r":454,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"WbrCH","f":"3r2k1/7p/R5p1/1p1r1p2/2p5/2P5/PP3PPP/2q1Q1K1 w - - 0 27","m":"e1c1 d5d1 c1d1 d8d1","r":484,"t":"backRankMate endgame fork mate mateIn2 queenRookEndgame short"},{"i":"WcF3c","f":"3r2k1/1pp2p1p/p4qp1/2P5/8/7Q/6PP/5R1K w - - 0 29","m":"f1f6 d8d1 f6f1 d1f1","r":483,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WcVSq","f":"8/6pp/1rP1k3/4p3/8/p2R4/P4PPP/6K1 w - - 0 36","m":"c6c7 b6b1 d3d1 b1d1","r":488,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"WcZqD","f":"3r2k1/ppp3p1/6p1/8/3n1pQ1/3B1P2/P3r1PP/R1BRq2K w - - 4 27","m":"d1e1 e2e1 d3f1 e1f1","r":598,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"WdXL3","f":"3Q2qk/pp4pp/2b3p1/8/4P3/8/2P2R1P/5RK1 b - - 0 34","m":"g8d8 f2f8 d8f8 f1f8","r":441,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"WdiyF","f":"rn2r1k1/p1p1Qpp1/1p3np1/8/3P4/2N5/PPP2PPP/R1B3K1 w - - 1 14","m":"e7c7 e8e1","r":463,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"WeFvK","f":"1k2br2/ppp5/4p2p/1PPpN3/P3P2K/3R4/6r1/8 b - - 3 33","m":"d5e4 d3d8","r":529,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WfPDg","f":"2k5/ppp1r2p/8/3r4/8/8/PP3PPP/R1B1R1K1 w - - 0 20","m":"e1e7 d5d1 e7e1 d1e1","r":488,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WfUgf","f":"r3Q2k/p5pp/1pnp4/6q1/3P4/2P5/P4PPP/R3R1K1 b - - 1 19","m":"a8e8 e1e8","r":493,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WfoQu","f":"3r2k1/5ppp/1R6/p1pP4/P4p2/3P3P/5KP1/8 b - - 0 32","m":"d8d5 b6b8 d5d8 b8d8","r":449,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Wg1mW","f":"3r1rk1/1b4bp/p3p3/1p1p4/8/2N5/PPPQ2PP/4R2K w - - 2 21","m":"e1e6 f8f1","r":486,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"WgmE8","f":"r5k1/p4ppp/8/3pQ3/3P4/2P5/q5PP/4R1K1 b - - 0 23","m":"a2c4 e5e8 a8e8 e1e8","r":575,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"WgsTl","f":"r3Q1kr/pbp2ppp/1p1p4/8/1P6/N1q2N2/P2R2PP/4R2K b - - 5 22","m":"a8e8 e1e8","r":540,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Wh4SO","f":"2r3k1/p4ppp/3pp3/1R2n3/4P3/q3P3/2Q3PP/3R2K1 b - - 0 28","m":"c8c2 b5b8 c2c8 b8c8","r":590,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WhXk6","f":"3r4/pp6/2p3kB/4R3/8/5N2/P1P2PPP/6K1 w - - 3 25","m":"h6e3 d8d1 f3e1 d1e1","r":491,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WhZnk","f":"3R4/6pk/7p/1r2P3/8/b4N2/5PPP/6K1 w - - 1 39","m":"d8a8 b5b1 f3e1 b1e1","r":488,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WhjpY","f":"r1r3k1/1p3pp1/4p2p/3pP3/3q4/P5R1/3Q1PPP/6K1 w - - 0 27","m":"d2d4 c8c1 d4d1 c1d1","r":459,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Wi29m","f":"4rr1k/p4p1p/2p2N2/6Q1/8/3P4/PPP2PPP/RN4K1 w - - 5 20","m":"g5h6 e8e1","r":470,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WiXDR","f":"5rk1/p4ppp/1p5n/5q2/5B2/4Q2P/P4PP1/4R1K1 b - - 1 23","m":"f8c8 e3e8 c8e8 e1e8","r":515,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Wjd0Z","f":"k2r4/pp5p/2p5/r7/4q1P1/7P/1PQR4/1K1R4 b - - 2 42","m":"e4e7 d2d8 e7d8 d1d8","r":598,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Wk7Po","f":"3r2k1/1p1qbpp1/p3p2p/6n1/2P5/PPB3Q1/2B2PPP/3rR1K1 w - - 0 29","m":"e1d1 d7d1 c2d1 d8d1 c3e1 d1e1","r":577,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"WkgOw","f":"r5k1/6pp/p3Q3/q2p4/7P/1r6/4RPP1/6K1 b - - 0 29","m":"g8h8 e6e8 a8e8 e2e8","r":580,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"WkiI6","f":"r1b3k1/pp2Bppp/2p1r3/8/3Rn3/5N1P/PPP2PP1/5RK1 b - - 0 17","m":"e6e7 d4d8 e7e8 d8e8","r":562,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"WkkOz","f":"1k5r/ppQ5/4pq1P/3r1p2/4n3/P7/5PP1/2R1RK2 b - - 5 33","m":"b8a8 c7c8 h8c8 c1c8","r":594,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"WlN07","f":"r1bR3k/5rpp/ppp2p2/2P2P2/4P3/1PB3PP/P5BK/8 b - - 1 30","m":"f7f8 d8f8","r":574,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"WlTSD","f":"4r1k1/p4ppp/2p5/P1PpQ3/3nn3/6PP/5PB1/1R4K1 b - - 0 33","m":"e8e5 b1b8 e5e8 b8e8","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WljPf","f":"5r2/pp3rk1/4Q1pb/3Np2p/4P3/8/PPP5/1K4qR w - - 0 30","m":"h1g1 f7f1 g1f1 f8f1","r":512,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WmbDV","f":"6k1/p1R2ppp/8/8/8/1P1K4/P3rPPP/8 b - - 0 27","m":"e2a2 c7c8","r":450,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"WmrmA","f":"6k1/2br1ppp/4R3/p7/2p5/PnP2P2/KP4PP/3Q4 b - - 0 26","m":"d7d1 e6e8","r":595,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WmxSs","f":"2r1rk2/ppp2ppp/2p2n2/5B2/8/2N3Q1/PPP2PPP/3q2K1 w - - 0 18","m":"c3d1 e8e1","r":442,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WnCg7","f":"k2r2Q1/ppR5/1q3p2/6pp/8/8/PP3P1P/2R3K1 b - - 0 29","m":"d8g8 c7c8 g8c8 c1c8","r":548,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WnDcD","f":"6k1/2rB1ppp/1R6/p2p4/3P4/4P2P/5PK1/8 b - - 0 32","m":"c7d7 b6b8 d7d8 b8d8","r":433,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"WnjXl","f":"r1bq3k/pp4pp/3pP3/n1p1n1Q1/4P3/2NP4/PPP3PP/R4RK1 b - - 0 16","m":"d8g5 f1f8","r":427,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"WoNYD","f":"5rk1/4np2/6pp/8/3qN3/P5Q1/2r2PPP/3R2K1 w - - 0 33","m":"d1d4 c2c1 d4d1 c1d1","r":537,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WoXu1","f":"r2Q2k1/5ppp/4b3/8/1p6/6BP/2r2PP1/3R2K1 b - - 0 35","m":"a8d8 d1d8","r":433,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WpQGW","f":"3r2k1/6pp/pQ1qp3/8/1P6/8/P4PPP/2R3K1 w - - 1 26","m":"b6b7 d6d1 c1d1 d8d1","r":510,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"WpST4","f":"r2q3k/pB2p2p/5bp1/4n3/8/2P2Q2/PP4PP/R1B4K w - - 1 19","m":"f3e4 d8d1 e4e1 d1e1","r":547,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Wpn16","f":"6rk/R5pp/1pB2pb1/1P6/P2r4/4q3/6PP/4R2K w - - 0 35","m":"e1e3 d4d1 e3e1 d1e1","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WpnEc","f":"2k5/8/1p1Q3p/3p4/6p1/8/rP3PPP/6K1 w - - 0 31","m":"d6d5 a2a1 d5d1 a1d1","r":564,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WpvUe","f":"6k1/p1r2ppp/1p2p3/P2pP3/3P4/7P/6P1/1R4K1 b - - 0 27","m":"b6a5 b1b8 c7c8 b8c8","r":469,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Wqo9p","f":"2kr3r/ppp2ppp/4b3/4R3/1nPN4/8/PPP2PPP/R1B3K1 w - - 3 14","m":"d4e6 d8d1 e5e1 d1e1","r":568,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Wr1JT","f":"5r1k/p2R4/1p2rpRp/8/3B4/2P5/b4PPP/6K1 w - - 3 26","m":"g6f6 e6e1","r":578,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WrS1z","f":"r4k2/3p1pp1/2p4p/3N4/3N4/8/5nPP/5R1K w - - 0 33","m":"f1f2 a8a1 f2f1 a1f1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WrXZ9","f":"5rk1/pp4pp/2ppr3/8/4P3/5R1P/PPP3P1/4R2K b - - 2 25","m":"g8h8 f3f8","r":514,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove rookEndgame"},{"i":"Wrvi6","f":"R7/5ppk/4p3/1r1r3p/1R6/8/1P3PPP/6K1 w - - 2 29","m":"b4b5 d5d1","r":548,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"Ws63w","f":"3r2k1/B1p1Rppp/1pp5/1n6/8/2N5/PP3PPP/6K1 w - - 2 20","m":"c3b5 d8d1 e7e1 d1e1","r":562,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WsgPE","f":"8/2r1kp2/4p1p1/pp1pP2p/3q4/8/PQ3PPP/6K1 w - - 0 34","m":"b2d4 c7c1 d4d1 c1d1","r":454,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WsjHa","f":"6k1/2b2pp1/4p1np/1p2P3/3r4/2N4P/1P2RPPB/6K1 w - - 0 25","m":"c3b5 d4d1 e2e1 d1e1","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WspeT","f":"4Q1kr/p4ppp/qb6/1b6/P7/5B2/1PrN1PPP/R1B1R1K1 b - - 0 26","m":"b5e8 e1e8","r":440,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Wt8B5","f":"6k1/5pp1/r1p1p2p/1N6/1q1PP3/8/5PPP/1R4K1 w - - 0 30","m":"b1b4 a6a1 b4b1 a1b1","r":574,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WtJIg","f":"4rr1k/2p3pp/p7/1p1Bn3/3R4/2P4Q/P1P3PP/R4q1K w - - 2 26","m":"a1f1 f8f1","r":587,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"WtT5c","f":"r1br2k1/pp3ppp/2n5/3B4/4R3/1N3N1P/PP3PP1/R5K1 b - - 0 16","m":"d8d5 e4e8","r":450,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"WvEEt","f":"4r2k/5p1p/b1p5/p1p2N2/P2p4/1P1P2R1/2P1r1PP/2R4K w - - 5 27","m":"f5h6 e2e1 c1e1 e8e1","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"WwL60","f":"1r4k1/4rppp/3p4/1Np5/1p2P3/3P3P/1PP3P1/R5K1 b - - 7 27","m":"b8b5 a1a8 b5b8 a8b8 e7e8 b8e8","r":541,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"WwnNk","f":"3rQ1k1/pp3ppp/1b3q2/1B2R3/8/2P2N2/PP3PPP/6K1 b - - 2 18","m":"d8e8 e5e8","r":418,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WxPtc","f":"r1b2rk1/p1b3p1/2p4p/2P1N3/3pQ3/P7/1P4PP/R1B1Rq1K w - - 2 20","m":"e1f1 f8f1","r":514,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"WxVwx","f":"r2Q1k1r/1p2nppp/8/1p6/2p1P3/8/P4PPP/3R2K1 b - - 2 20","m":"a8d8 d1d8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WxzCs","f":"5r2/4k3/2p2q2/2b1P2p/4Q3/8/PPP3PP/R4RK1 w - - 1 23","m":"g1h1 f6f1 a1f1 f8f1","r":507,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Wy581","f":"1r4k1/p4ppp/r2p4/qnpPn1PP/1pB2P2/8/PPP1Q3/K1BRR3 b - - 0 26","m":"e5c4 e2e8 b8e8 e1e8","r":548,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"Wyp8q","f":"1r2r1k1/5pbp/3B1np1/8/N2p4/1P3B2/2Q2PPP/3Rq1K1 w - - 1 24","m":"d1e1 e8e1","r":531,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"Wyraq","f":"6k1/prp2ppp/1p1n4/8/2NP4/P1P5/5PPP/4R1K1 b - - 3 24","m":"d6c4 e1e8","r":526,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"WyxJj","f":"2r2rk1/p6p/1p4p1/4qp2/7Q/8/PP3PPP/4R1K1 w - - 0 25","m":"e1e5 c8c1 e5e1 c1e1","r":536,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WzREk","f":"4r1k1/4rppp/8/pp6/3q4/P4Q2/5PPP/1R1R2K1 w - - 0 27","m":"d1d4 e7e1 b1e1 e8e1","r":443,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"WzmtD","f":"1r2Q2k/Rp4pp/6n1/2p2P2/7q/1P2R2P/1PP3P1/6K1 b - - 0 25","m":"b8e8 e3e8 g6f8 e8f8","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"X1LCg","f":"3r2k1/5ppp/p3p3/Pp6/1P6/2P3Q1/1B1r1PPP/1q3RK1 w - - 0 22","m":"f1b1 d2d1 b1d1 d8d1","r":491,"t":"backRankMate endgame mate mateIn2 short"},{"i":"X1ZjD","f":"6k1/5ppp/1p1p4/2NPr3/6P1/5P2/7P/1R5K b - - 0 30","m":"b6c5 b1b8 e5e8 b8e8","r":556,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"X1vJm","f":"5r1k/6p1/7p/2p5/8/1B2P3/1PP1q1PP/4R2K w - - 0 33","m":"e1e2 f8f1","r":432,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"X1xah","f":"1r4k1/4Rppp/p2p4/1prP1b2/2B5/1P3P2/P5PP/4R1K1 b - - 3 22","m":"b5c4 e7e8 b8e8 e1e8","r":548,"t":"backRankMate endgame mate mateIn2 short"},{"i":"X27DI","f":"4r1k1/ppp1qppp/3p4/3P4/8/1QPb1B2/PP3PPP/R2Rr1K1 w - - 15 23","m":"d1e1 e7e1 a1e1 e8e1","r":595,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"X2AoB","f":"3r2k1/5ppp/4p3/1q6/8/8/P4PPP/1R4K1 w - - 0 28","m":"b1b5 d8d1","r":507,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"X2DjI","f":"5k2/1Q6/p4rp1/3p4/Ppp5/1P1P1N2/2P3PP/4r2K w - - 1 34","m":"f3e1 f6f1","r":456,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"X2E5i","f":"2r1r1k1/1p3ppp/p7/3b4/1Rp5/N1q2P2/3R2PP/2Q4K w - - 7 29","m":"c1c3 e8e1","r":465,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"X32PI","f":"4r1k1/Q1p1qpp1/3p3p/2p3n1/8/1P4B1/P1P2PPP/3R2K1 w - - 1 25","m":"a7a4 e7e1 d1e1 e8e1","r":508,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"X35kc","f":"k2Qr3/pp6/q1p3p1/4rp1n/4B2P/2P2P1R/PP3K2/3R4 b - - 1 31","m":"e8d8 d1d8","r":485,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"X3DKd","f":"5rk1/pppb2p1/4pr1p/3p4/3Pp1BR/2P1P3/PP1B2PP/R2Q3K w - - 1 20","m":"d1b3 f6f1 a1f1 f8f1","r":483,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"X3G59","f":"r1bn1k2/ppp2prp/8/8/2p5/B1P2N2/P4PPP/R3R1K1 b - - 3 14","m":"f8g8 e1e8","r":424,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"X3R6n","f":"3r2k1/p4ppp/3B4/3Pp3/r6P/P5P1/1P1K4/2R4R b - - 0 28","m":"d8d6 c1c8 d6d8 c8d8","r":438,"t":"backRankMate endgame master mate mateIn2 rookEndgame short"},{"i":"X3Wew","f":"4r3/1p3p1k/p2P4/6Q1/2P1r3/8/P5PP/3R3K w - - 1 31","m":"d6d7 e4e1 d1e1 e8e1","r":548,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"X48IB","f":"2R2R2/1q3ppk/4p2p/8/2p1PP2/r1P5/1B2Q1PP/7K w - - 0 33","m":"b2a3 b7b1 a3c1 b1c1 e2d1 c1d1","r":500,"t":"backRankMate endgame long mate mateIn3"},{"i":"X4te0","f":"2r3k1/5ppp/R3p3/3p4/8/7P/P1Q2PP1/6K1 b - - 0 24","m":"c8c2 a6a8 c2c8 a8c8","r":537,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"X5StA","f":"5rk1/R4n1p/5pp1/1Pq5/3N4/1Q2P3/5PPP/6K1 w - - 1 33","m":"b5b6 c5c1 b3d1 c1d1","r":557,"t":"backRankMate endgame mate mateIn2 short"},{"i":"X63H3","f":"8/5kp1/1pR2pp1/2Pp4/8/r7/5PPP/6K1 w - - 0 31","m":"c5b6 a3a1 c6c1 a1c1","r":461,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"X641U","f":"8/R5pp/6k1/8/8/P1P1P3/1r1r1PPP/1R4K1 w - - 0 29","m":"b1b2 d2d1","r":586,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"X6Kcp","f":"5r2/7p/1kp5/5q2/3R4/2P5/PP4PP/4Q1K1 w - - 3 32","m":"g1h1 f5f1 e1f1 f8f1","r":592,"t":"backRankMate endgame mate mateIn2 short"},{"i":"X6N5b","f":"2R1Q3/5pp1/3r2kp/8/3Np3/P7/1P3PPP/6K1 w - - 5 30","m":"d4b5 d6d1","r":409,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"X6Wgp","f":"1k4Qr/ppp5/8/8/8/1PPPq3/P1K2P1r/R5R1 b - - 1 33","m":"h8g8 g1g8 e3e8 g8e8","r":543,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"X6f9L","f":"7k/2p3pp/6n1/8/1P2P2P/PN1r4/3R3K/8 b - - 0 45","m":"d3b3 d2d8 g6f8 d8f8","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"X7GTl","f":"4r1k1/5ppp/5p2/1pp2N2/3p4/1P6/P1PP1PPP/R3q1K1 w - - 2 22","m":"a1e1 e8e1","r":416,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"X7S4F","f":"r5k1/1p1b1ppp/1q2p3/n2pP3/3P4/PpQ1B3/1P2BPPP/2R3K1 b - - 0 20","m":"a8c8 c3c8 d7c8 c1c8 b6d8 c8d8","r":478,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"X7WJB","f":"3r4/pb2b1p1/4p1k1/2p5/5B2/P3P3/5PPP/1R4K1 w - - 0 26","m":"b1b7 d8d1","r":506,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"X7ZJY","f":"2r2rk1/2p2qp1/1p5p/p4Q2/2P5/1P6/P5PP/4RR1K w - - 0 28","m":"f5h3 f7f1 e1f1 f8f1","r":505,"t":"backRankMate endgame mate mateIn2 short"},{"i":"X83PV","f":"3rr1k1/pp3ppp/2p3q1/3Pb3/2P2B2/P5P1/4QP1P/2R1R1K1 b - - 1 23","m":"e5f4 e2e8 d8e8 e1e8","r":506,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"X8K9I","f":"4r1k1/5ppp/3R4/6P1/4RP2/P6P/1Pr1BK2/8 b - - 0 31","m":"e8e4 d6d8 e4e8 d8e8","r":426,"t":"backRankMate endgame mate mateIn2 short"},{"i":"X8p5F","f":"3r1bk1/2q1npp1/p3p2p/1p6/1P6/P3PN2/1B3PPP/2R3K1 w - - 0 24","m":"c1c7 d8d1 f3e1 d1e1","r":489,"t":"backRankMate endgame mate mateIn2 short"},{"i":"X8wDQ","f":"2r4k/R5pp/p4p2/4p3/2P5/7P/P4PP1/6K1 b - - 2 28","m":"c8c4 a7a8 c4c8 a8c8","r":594,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"X9Q00","f":"2r4k/pb3Rpp/1p2p3/2r1P3/3N4/4q3/PP2N1PP/1K3R2 b - - 0 25","m":"c5e5 f7f8 c8f8 f1f8","r":510,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"X9jcd","f":"4r1k1/Qp3pp1/3P4/8/2P3p1/8/P3rPPP/q4RK1 w - - 0 26","m":"f1a1 e2e1 a1e1 e8e1","r":402,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"X9sZb","f":"5r1k/1p3Qpp/p7/8/1P1q4/P5P1/2P2P1P/4R1K1 b - - 2 26","m":"f8f7 e1e8 f7f8 e8f8","r":420,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"X9w7B","f":"5r2/pp4pk/6p1/3r4/1PQ5/P7/2b1R1PP/4Rq1K w - - 2 26","m":"e1f1 f8f1","r":594,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XA3jc","f":"1n1qr1k1/3r1ppp/p3bb2/3P4/3P4/BP2QB2/P4PPP/R3R1K1 b - - 0 21","m":"e6d5 e3e8 d8e8 e1e8","r":494,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XAiZc","f":"1r1Q2k1/1b3ppp/4p3/4P3/5P2/7P/2r3P1/3R1RK1 b - - 1 25","m":"b8d8 d1d8","r":574,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XAruO","f":"3r1rk1/2pq2p1/p4b1p/1p2p3/1P1P1Q2/P7/1B3PPP/2RR2K1 w - - 0 24","m":"d4e5 d7d1 c1d1 d8d1","r":545,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XBOf2","f":"r1bq1rk1/p5bp/2p3p1/3p4/4nQ2/1B6/PPP3PP/RNB2R1K w - - 1 18","m":"f4e4 f8f1","r":596,"t":"backRankMate hangingPiece mate mateIn1 oneMove opening"},{"i":"XBgqb","f":"3b3k/6pp/pp4q1/5Q2/2p1R3/2P3PP/PP3P2/6K1 b - - 1 29","m":"g6f5 e4e8 f5f8 e8f8","r":459,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"XBswv","f":"2Q4k/pp4pp/8/8/1P2p2q/P3Pp1b/5P2/2R3K1 b - - 4 38","m":"h3c8 c1c8 h4d8 c8d8","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XCBMq","f":"1r5k/3p2pp/4p1q1/p7/P7/2P2R2/KP6/5R2 b - - 9 43","m":"g6c2 f3f8 b8f8 f1f8","r":541,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"XCUtX","f":"7k/1p4pp/1p6/2p1R3/7K/P2PB3/1P4q1/8 b - - 0 42","m":"g2f3 e5e8 f3f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XCcil","f":"r7/6b1/5p1p/2k1p3/B7/1R1P4/2P2PPP/6K1 w - - 3 31","m":"a4d7 a8a1 b3b1 a1b1","r":512,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XD86m","f":"3r1Q1k/6pp/4p3/3r4/8/4q1PP/PP4P1/R4R1K b - - 2 26","m":"d8f8 f1f8","r":507,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"XDAgN","f":"4r1k1/pp3p2/2p2pbp/4r2B/8/P5Q1/1P3PPP/2Rq2K1 w - - 0 24","m":"c1d1 e5e1 d1e1 e8e1","r":572,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XDVmM","f":"7k/p1R3pp/1pn5/8/3b4/6P1/PP5P/7K b - - 0 32","m":"c6e5 c7c8","r":593,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"XDqzI","f":"1r4k1/p6p/4Ppp1/3q1p2/8/2P5/5PPP/3R2K1 w - - 0 27","m":"d1d5 b8b1 d5d1 b1d1","r":502,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XE8Xm","f":"4r1k1/Q4ppp/8/8/8/P5B1/4rNPP/1q3RK1 w - - 0 24","m":"f1b1 e2e1 b1e1 e8e1","r":531,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XEN2e","f":"8/7p/3Nk1p1/5p2/pB1P4/PrP1b3/4b1PP/4R2K w - - 7 39","m":"e1e2 b3b1 e2e1 b1e1","r":576,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XEujm","f":"r1b2q1k/ppp3pp/8/2Q1P3/2B5/2P3P1/PPN4P/2KR4 b - - 0 22","m":"f8c5 d1d8 c5f8 d8f8","r":496,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XF0KZ","f":"r2r4/p4Q2/1p6/2kB4/8/4PN2/PP3PPP/6K1 w - - 1 31","m":"d5a8 d8d1 f3e1 d1e1","r":436,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XF7zn","f":"4rk2/ppp1qpp1/1b1p1n2/5B2/1PP5/P5BR/2Q3PP/3Rr2K w - - 3 28","m":"g3e1 e7e1 d1e1 e8e1","r":538,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XF9XF","f":"r4Q1k/2pn2pp/1p6/p4R2/P7/2Pqb3/1P4PP/5R1K b - - 2 22","m":"d7f8 f5f8 a8f8 f1f8","r":583,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XFB0o","f":"2kr1b2/pp3Q2/6p1/2n1p3/8/PN6/1Pq3PP/2R4K w - - 2 26","m":"c1c2 d8d1 f7f1 d1f1","r":550,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XFmQa","f":"5r1k/p5pp/1p6/8/PP4N1/2P2QqP/6P1/3R3K b - - 2 28","m":"f8f3 d1d8 f3f8 d8f8","r":576,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XFrNK","f":"5r2/p1p2rk1/1p4p1/3Pp1p1/2P5/3P4/PP4PP/R2Q1q1K w - - 9 24","m":"d1f1 f7f1 a1f1 f8f1","r":585,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XG9rn","f":"3k4/r2n2pp/1pQb4/1P3P2/2P5/8/6PP/3R3K w - - 4 38","m":"d1d6 a7a1 d6d1 a1d1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XGOHB","f":"1n3rk1/5ppp/1rp1bn2/p7/P7/q1P2Q2/3PPPBP/R4KNR w - - 0 16","m":"a1a3 b6b1","r":480,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"XGSny","f":"1r2r2k/1p2qpp1/p1pp4/Q4b1p/1PPR4/5B2/P4PPP/3R2K1 w - - 4 27","m":"a5f5 e7e1 d1e1 e8e1","r":562,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"XGXOF","f":"r3r1k1/p2nqppp/2pp4/8/8/2N2Q2/PPP2PPP/3R1RK1 w - - 0 17","m":"f1e1 e7e1 d1e1 e8e1","r":590,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XGpYg","f":"2r2rk1/8/7p/2bNp1pQ/p7/P7/1P4PP/3R1q1K w - - 2 30","m":"d1f1 f8f1","r":478,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XH87X","f":"2qQ2k1/3R1ppp/8/4p3/2P5/6PK/5P1P/n7 b - - 2 33","m":"c8d8 d7d8","r":410,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XHPF3","f":"6k1/2R2ppp/pp6/8/3N4/1P1n3P/P4PPK/4r3 b - - 2 26","m":"d3f2 c7c8 e1e8 c8e8","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XHXez","f":"1r2r1k1/p5pp/4N3/2PnP3/8/P3P3/2R2PPP/3R2K1 w - - 1 22","m":"d1d5 b8b1 c2c1 b1c1 d5d1 c1d1","r":503,"t":"backRankMate endgame long mate mateIn3"},{"i":"XHbPO","f":"6k1/p4ppp/4pn2/3p4/PP1b4/B2P4/4rPPP/2R3K1 b - - 0 24","m":"e2f2 c1c8 f6e8 c8e8","r":503,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XHwNI","f":"6k1/p4pp1/3R3p/4p3/PP2P3/2r5/5PPP/6K1 w - - 0 27","m":"d6d7 c3c1 d7d1 c1d1","r":482,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XHxbS","f":"4r1k1/5ppp/p2R4/1pp5/3n2P1/1P2N2P/1PP2P2/5K2 b - - 5 26","m":"e8e6 d6d8 e6e8 d8e8","r":594,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XIGXh","f":"1k4nr/ppp1qQb1/8/n3P2p/5Pp1/2N1P3/PP4PP/R1BR2K1 b - - 3 18","m":"e7f7 d1d8","r":547,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"XKHmm","f":"3r4/p4pkp/1p4p1/1N6/8/2P5/Pn2RPPP/6K1 w - - 0 27","m":"e2b2 d8d1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XKIUs","f":"3r2k1/p4ppp/1p2p3/8/P2R4/1P5P/2R2PP1/6K1 b - - 0 28","m":"d8d4 c2c8 d4d8 c8d8","r":550,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XKTmQ","f":"2rr2k1/p1q2ppp/1p2p3/1P2N3/1P1p1P2/3R1b2/3Q1PPP/2R3K1 w - - 0 24","m":"d3f3 c7c1 d2c1 c8c1","r":544,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XKXjz","f":"1k3r2/1p1b4/4prp1/Q2p3p/P7/1P6/6PP/3RRq1K w - - 2 34","m":"e1f1 f6f1 d1f1 f8f1","r":526,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XKY6d","f":"r6k/p3r1p1/3p3p/8/8/5R2/PP4PP/3R3K w - - 0 33","m":"d1d6 e7e1 f3f1 e1f1","r":436,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XKwXJ","f":"2r3k1/1p1R1ppp/6n1/4P3/2r2P2/8/P1P3PP/3R2K1 b - - 0 22","m":"g6f4 d7d8 c8d8 d1d8","r":491,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XLiRs","f":"r1b3k1/2pr2pp/pnN1p3/8/2P5/8/2P2PPP/R1B1R1K1 w - - 0 20","m":"e1e6 d7d1 e6e1 d1e1","r":482,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XLqrZ","f":"4r1k1/1p2qppp/p1b5/3p1Q2/3B4/2P5/PP3PPP/R5K1 w - - 0 21","m":"f5g4 e7e1 a1e1 e8e1","r":458,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"XLr1I","f":"1r4k1/7p/4p1p1/2r1B3/p2p1R2/Pb1P4/6PP/2R4K w - - 0 35","m":"e5b8 c5c1 f4f1 c1f1","r":454,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"XLst2","f":"r5k1/pp3ppp/2n1p3/4P2b/1Pq5/3R1N1P/P1P2PP1/3Q2K1 b - - 0 20","m":"c6b4 d3d8 a8d8 d1d8","r":495,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XLuJq","f":"6k1/5ppb/4pb1p/3p4/2pP1P2/1Q2PB2/r5PP/2R1B1K1 b - - 0 31","m":"c4b3 c1c8 f6d8 c8d8","r":529,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XML9O","f":"5bk1/5pp1/1B5p/P2rp3/2q5/8/P4PPP/2R3K1 w - - 0 30","m":"c1c4 d5d1","r":462,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XMdoq","f":"2rQ2k1/1q3ppp/1p3n2/pPn5/Pb2pN2/2N1P3/1B3PPP/3R2K1 b - - 8 24","m":"c8d8 d1d8 f6e8 d8e8","r":409,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XNbY3","f":"3r2k1/1p4pp/6n1/1P6/2P1pp2/8/2R2PPP/4R1K1 w - - 0 34","m":"e1e4 d8d1 e4e1 d1e1","r":415,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XNtqQ","f":"2r4k/2p3pp/pp1p2r1/3Pp2q/QPP1p3/P3P1PP/5P1K/R4R2 b - - 2 23","m":"c8e8 a4e8","r":410,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"XO1Dz","f":"2r3k1/3R1pp1/p6p/1p2P3/5P2/5B2/nP4PP/7K w - - 0 33","m":"f3e4 c8c1 d7d1 c1d1","r":552,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XO8gY","f":"3r3k/5pnp/5Np1/8/4P3/8/2P1qPPP/4R1K1 w - - 0 29","m":"e1e2 d8d1 e2e1 d1e1","r":403,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XONse","f":"1r3k2/6p1/p4p1p/4p3/PN2P3/8/2R2PPP/6K1 w - - 1 38","m":"b4d5 b8b1 c2c1 b1c1","r":409,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XOmT4","f":"1k6/1q6/8/p3P1N1/3P4/8/Q4PPP/1q4K1 w - - 0 41","m":"a2b1 b7b1","r":486,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XPBng","f":"r3r1k1/pp3ppp/2p1q3/8/2nP2N1/PQP5/5PPP/R4RK1 w - - 1 17","m":"f1e1 e6e1 a1e1 e8e1","r":496,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XPkSD","f":"3r2k1/1p3ppp/p2Qp3/8/8/2R3PP/PP3P1K/8 b - - 0 34","m":"d8d6 c3c8 d6d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XQRLS","f":"3r2k1/1p3ppp/p3p3/8/3Q4/7P/PP3PP1/2R3K1 b - - 0 25","m":"d8d4 c1c8 d4d8 c8d8","r":405,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XQhPH","f":"4r1k1/pp3p2/6p1/2p3Bp/1n6/5Q2/P4PPP/2q3K1 w - - 0 26","m":"g5c1 e8e1","r":444,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XRDKK","f":"5rk1/pp1Q2pp/4pr2/8/8/4b3/PP4PP/R4RK1 w - - 0 20","m":"g1h1 f6f1 a1f1 f8f1","r":410,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XRPrQ","f":"3r2k1/r1p3p1/p1p1p2p/1p6/P3n3/2P5/1P3PPP/RN2R1K1 w - - 0 18","m":"e1e4 d8d1 e4e1 d1e1","r":426,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XS0JY","f":"r1r3k1/p4ppp/1p6/3R4/8/8/PPP2PPP/3R2K1 b - - 2 18","m":"c8c2 d5d8 a8d8 d1d8","r":592,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XSAQ7","f":"6k1/3pnp1p/3Pp1p1/1r6/4P3/P2R4/P4PPP/6K1 w - - 0 30","m":"d6e7 b5b1 d3d1 b1d1","r":540,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XSKcQ","f":"8/p2R3p/1p3ppk/2p5/P1P2P2/2r5/5PPP/6K1 w - - 1 27","m":"d7a7 c3c1","r":575,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"XSfcD","f":"5rk1/5r1p/3n2p1/8/1Q6/8/P5PP/1R2Rq1K w - - 11 34","m":"e1f1 f7f1 b1f1 f8f1","r":559,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XT4iK","f":"8/5R2/4k3/4r1p1/1n6/6N1/6PP/7K w - - 1 41","m":"f7b7 e5e1 g3f1 e1f1","r":592,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XTRSy","f":"4rk2/1q1r1p2/p4R1N/1p1P1Qn1/1P6/P1N5/6PP/7K w - - 3 33","m":"f5g5 e8e1 f6f1 e1f1","r":591,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XTjX7","f":"6k1/4rppp/R7/1p6/2pP4/2P4P/5PP1/6K1 b - - 0 26","m":"e7b7 a6a8 b7b8 a8b8","r":450,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XTno4","f":"4r3/pR6/2p2k1p/2Np2pn/8/3P4/PP2rPPP/R5K1 w - - 5 25","m":"b2b4 e2e1 a1e1 e8e1","r":550,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XVSqB","f":"4rk2/pb5Q/1pp1qb1p/6pN/1P1p4/P6P/5PPB/2R3K1 w - - 4 34","m":"h5f6 e6e1 c1e1 e8e1","r":592,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"XVhvv","f":"1k6/pp2r3/3rP3/8/4Q2P/5B2/PPPq1PP1/1K5R w - - 7 27","m":"h1d1 d2d1 f3d1 d6d1","r":513,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"XW0Gg","f":"5rk1/1pq2ppp/8/P4R2/4P3/3Q4/6PP/7K w - - 5 34","m":"f5b5 c7c1 d3d1 c1d1","r":547,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XW8MM","f":"4rnk1/pp2r1p1/2pb2P1/3p3P/Q2N4/3B4/PPP5/1K3q1R w - - 0 31","m":"h1f1 e7e1 f1e1 e8e1","r":569,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XWdwZ","f":"4r2k/pp4pp/4q3/8/2P5/1P4Q1/P4PPP/3r1RK1 w - - 0 28","m":"f1d1 e6e1 d1e1 e8e1","r":549,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"XWjoM","f":"2r3k1/5ppp/pq2p3/1p6/1P1PR3/P1n2P1P/2Q3P1/2B4K b - - 2 29","m":"c3e4 c2c8 b6d8 c8d8","r":449,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"XXHoh","f":"3kr3/b2b2pp/B7/P7/8/1Q6/6PP/1R2q2K w - - 3 34","m":"b1e1 e8e1 a6f1 e1f1","r":511,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XXkEE","f":"2r2k1r/1p3ppp/p4b1n/q2p4/P5b1/BB3p2/2P1Q1PP/1RN1R1K1 b - - 1 24","m":"f8g8 e2e8 c8e8 e1e8","r":481,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"XXmd3","f":"1r3Q1k/b5pp/2q5/3p2B1/3p4/1Pp2R1P/2P3P1/4R2K b - - 0 33","m":"b8f8 f3f8","r":530,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"XXwiq","f":"1r2R2k/p5pp/8/8/3N4/2P3P1/PP3q1P/4R2K b - - 1 30","m":"b8e8 e1e8 f2f8 e8f8","r":434,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"XYhPH","f":"2rr2k1/p2R1ppp/1p6/4Pp2/1n6/7P/1B4P1/2R4K b - - 0 32","m":"d8d7 c1c8 d7d8 c8d8","r":410,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"XYnla","f":"2b1r2k/2P2pbp/p7/Qp4p1/1P6/4B3/P4PPP/2q3K1 w - - 0 29","m":"e3c1 e8e1","r":486,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XYsIg","f":"2k5/p5pp/P1r1Np2/1R1p4/8/4P3/5PPP/6K1 w - - 1 36","m":"e6g7 c6c1","r":456,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XZBrR","f":"k2qQ3/pp4p1/2p2p1p/7P/2PP4/8/PP4P1/1K2R3 b - - 1 27","m":"d8e8 e1e8","r":413,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XZgVJ","f":"3r2k1/1R3ppp/4p3/1P6/5P2/2N5/1r6/4K3 b - - 0 27","m":"d8d2 b7b8 d2d8 b8d8","r":489,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XZmK9","f":"2r5/4p1kp/5pp1/1P1q4/2B5/8/5PPP/2R3K1 w - - 0 31","m":"c4d5 c8c1","r":420,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"XaPU8","f":"6k1/2q2ppp/2p1p3/2PpPn2/5Pb1/Q1R5/6PP/5K2 b - - 0 29","m":"f5d4 a3a8 c7b8 a8b8","r":575,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xb1ki","f":"6k1/7p/2QP2p1/p1p5/2Pb4/1P4P1/P4qPP/2R1r2K w - - 5 31","m":"c1e1 f2e1","r":514,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XbOJO","f":"5r1k/ppp3pp/8/5n2/1Q4P1/3P3q/PPP2R1P/6K1 b - - 1 29","m":"f5e3 f2f8","r":519,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"XbaPb","f":"r1b1r2k/pp2q1pp/2p5/5p2/3Q4/2P2n2/P1P1BPPP/R3R1K1 w - - 0 18","m":"e2f3 e7e1 a1e1 e8e1","r":499,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XbunP","f":"2R5/5kpp/1p2pp2/3n4/3rB3/P7/1P3PPP/6K1 w - - 2 27","m":"e4h7 d4d1","r":430,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XbvEa","f":"k3r3/pp2N3/8/n3p2p/6pP/3R2P1/5P2/5RK1 b - - 0 33","m":"e8e7 d3d8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XcKOp","f":"4r1k1/1b2qp2/7p/3p2pn/B1pP4/P6P/1P1Q1PPB/2R1r1K1 w - - 0 31","m":"c1e1 e7e1 d2e1 e8e1","r":498,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XcR6n","f":"r2r2k1/4bppp/p3pn2/1pP5/8/P1PN4/1P2RPPP/R1B3K1 w - - 1 20","m":"d3e5 d8d1 e2e1 d1e1","r":455,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XcXQP","f":"1r1R3k/1p2q1pp/p1P5/3Q4/8/5p2/PP4PP/2KR4 b - - 3 25","m":"b8d8 d5d8 e7d8 d1d8","r":567,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XcnY0","f":"6k1/p4ppp/1p2rr2/3R4/PP6/5P2/5PKP/1R6 b - - 0 27","m":"e6e7 d5d8 e7e8 d8e8","r":544,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XdMzh","f":"4r1k1/pp2rp1p/2n3p1/3p4/3P4/1BP2PQ1/P5PP/R3q2K w - - 5 29","m":"a1e1 e7e1 g3e1 e8e1","r":488,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xdw03","f":"5rk1/6pp/p1pQ2n1/5q2/8/PPNP4/2P3PP/R6K w - - 1 26","m":"c3e4 f5f1 a1f1 f8f1","r":534,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Xe3tr","f":"6k1/5ppp/R3p3/1p6/4P3/8/Pn3PPP/2r2BK1 b - - 1 27","m":"b5b4 a6a8 c1c8 a8c8","r":545,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XeQKz","f":"r3r1k1/pb3p1p/2n3p1/1p6/2p5/P6Q/1PB2PPP/R1Bq2K1 w - - 0 20","m":"c2d1 e8e1","r":543,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"XenQT","f":"2rb2k1/5pp1/p7/3p2p1/3P1B2/PR2P2P/2r2PP1/1R4K1 w - - 0 29","m":"f4h2 c2c1 b1c1 c8c1","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XfER2","f":"r1Q3k1/5ppp/p7/8/3pbB2/R7/1r4PP/2R4K b - - 2 31","m":"a8c8 c1c8","r":423,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XfGKc","f":"2r3k1/3p1pp1/8/8/pP1N3p/8/BPR1nPPP/6K1 w - - 1 28","m":"c2e2 c8c1 e2e1 c1e1","r":544,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XfIbk","f":"4Q1k1/ppbq1ppp/1np2p2/7b/2P5/PP1P1NPP/1B3P1K/R3R3 b - - 0 18","m":"d7e8 e1e8","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Xfsdn","f":"3r3k/6pp/1p3n2/p1p5/2B3P1/2Q5/PP5P/K2qR3 w - - 1 35","m":"e1d1 d8d1 c3c1 d1c1","r":413,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xg4Ge","f":"3r2k1/2R2ppp/1pp5/p7/2PP4/1P6/P1r2PPP/R5K1 b - - 1 26","m":"d8d4 c7c8 d4d8 c8d8","r":459,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Xh1KA","f":"r1b3k1/pp3pp1/2p2P2/2b3P1/P7/8/BPP2RPP/RN1r3K w - - 1 18","m":"f2f1 d1f1","r":572,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"XhB6Y","f":"3r2k1/p1p2ppp/1p1qp3/4N3/2P5/1P6/P1Q2PPP/5RK1 w - - 5 25","m":"f1d1 d6d1 c2d1 d8d1","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xhngy","f":"6k1/1pp2ppp/1p6/4P3/8/R1p1NP2/3r2PP/7K b - - 0 26","m":"c3c2 a3a8 d2d8 a8d8","r":419,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XiKV8","f":"7k/3bq1pp/5n2/1p6/3p3B/rB1P4/2P2PPP/4R1K1 w - - 0 27","m":"e1e7 a3a1 e7e1 a1e1","r":596,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XiPYE","f":"5r1k/pQN3p1/1p5p/8/4p3/2P5/PP4PP/3R1q1K w - - 2 28","m":"d1f1 f8f1","r":545,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XiYdn","f":"4r2k/p1p3p1/1p1p1p1p/5P2/8/7Q/P1P2RPP/4r2K w - - 1 33","m":"f2f1 e1f1","r":421,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove queenRookEndgame"},{"i":"Xj1Gj","f":"2r3k1/5ppp/bp6/8/3PR3/1Pr5/P1P3PP/4R2K b - - 0 26","m":"c3c2 e4e8 c8e8 e1e8","r":442,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xj2RH","f":"6k1/R4ppp/2p5/8/2r5/6NP/P5PK/1r6 b - - 5 31","m":"c4c1 a7a8 b1b8 a8b8","r":562,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XjyLE","f":"2k2r2/ppp1nr1p/4pBp1/4P3/P7/8/1P4PP/R4R1K w - - 1 25","m":"f6e7 f7f1 a1f1 f8f1","r":496,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xkfd7","f":"r1b1R3/pp3rk1/2p3p1/8/8/8/PP4PP/2Q2q1K w - - 8 32","m":"c1f1 f7f1","r":419,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XkwQz","f":"2k2b1r/p4p1p/p1p1p3/2P1R3/1P1r4/8/P4PPP/R1B3K1 w - - 0 19","m":"a2a3 d4d1 e5e1 d1e1","r":423,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XlXcs","f":"1k1r4/pp2R1pp/8/8/1n6/1P3N2/P1P2PPP/6K1 w - - 4 29","m":"e7g7 d8d1 f3e1 d1e1","r":467,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XmCnV","f":"2r3k1/p3Rppp/1p2p3/3nP3/8/P4N2/1P3PPP/6K1 w - - 0 25","m":"e7a7 c8c1 f3e1 c1e1","r":423,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XmMRs","f":"k5r1/pp3p2/q3pP2/3p4/Nn1P3P/1PQ5/5P2/K1R5 b - - 7 35","m":"b4d3 c3c8 g8c8 c1c8","r":526,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"XmcMJ","f":"2k1Q2r/1ppn1p2/p6p/5qpn/2P5/7P/PP3PP1/2R1R1K1 b - - 1 25","m":"h8e8 e1e8","r":405,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Xmipr","f":"6k1/5pp1/7p/1r6/4p3/4P3/5PPP/2R3K1 w - - 0 33","m":"c1c4 b5b1 c4c1 b1c1","r":436,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Xn1c5","f":"8/Q4pbk/8/P2q2p1/4p2p/2P3BP/1P3PP1/6K1 w - - 0 32","m":"g3h2 d5d1","r":472,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XnKg2","f":"1r5k/2p3pp/3p4/5q2/P7/8/1QP3PP/R3R2K b - - 0 28","m":"b8b2 e1e8 f5f8 e8f8","r":416,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"XnTx9","f":"3r3k/p1R3pp/4p3/8/3r4/B7/P4PPP/2R3K1 w - - 2 22","m":"a3b2 d4d1 c1d1 d8d1","r":509,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"Xnc02","f":"8/5kp1/p2nR2p/2N2p2/1r6/8/P4PPP/6K1 w - - 2 34","m":"e6d6 b4b1 d6d1 b1d1","r":498,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xndnz","f":"2rQ2k1/pp3ppp/1n2b2q/8/2P1PP2/6P1/PP5P/2KR1B1R b - - 2 17","m":"c8d8 d1d8","r":416,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Xnl8x","f":"r1b2r1k/1p4pp/p1pb4/6q1/5p2/1B1P1QP1/PPP1N2P/4RRK1 b - - 1 21","m":"f4g3 f3f8 d6f8 f1f8","r":583,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XnnGb","f":"2Q5/1p1r1ppk/1P2p2p/8/8/8/2Pr1PPP/2q2RK1 w - - 0 25","m":"f1c1 d2d1 c1d1 d7d1","r":539,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"XnqAv","f":"k1Q4r/pp4p1/8/4PpP1/3P1P1p/4BK2/1q4P1/2R5 b - - 2 30","m":"h8c8 c1c8","r":545,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XohH3","f":"2r3k1/5ppp/2r2p2/1p1p1b2/3P4/R3P3/1P1QNPPP/2q3K1 w - - 0 21","m":"e2c1 c6c1 d2c1 c8c1","r":457,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xr1CR","f":"2r2k2/2q2pp1/p7/1p2pB2/8/P5R1/1P3PPP/1Qr2RK1 w - - 2 29","m":"f1c1 c7c1 b1c1 c8c1","r":417,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xrg7y","f":"6k1/4nppb/p1p1p2p/3pP3/2pP4/2q1B3/P1N2PPP/1R4K1 b - - 0 25","m":"c3c2 b1b8 e7c8 b8c8","r":592,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XrzFm","f":"4r3/pp1k3p/3p2p1/1N6/3B4/5P2/PPPb3P/1K1R4 w - - 7 25","m":"d1d2 e8e1 d2d1 e1d1","r":486,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XsJAO","f":"4q2k/6pp/1p6/8/4Q3/2P5/PP4PP/3R3K b - - 1 25","m":"e8e4 d1d8 e4e8 d8e8","r":554,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"XsbdN","f":"2r1k3/4P1b1/3R4/pp4pp/3PRp2/8/PP3PPP/6K1 w - - 1 35","m":"d6g6 c8c1 e4e1 c1e1","r":481,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xsike","f":"2r2Bk1/p4p2/1p2p1p1/8/3n4/5N2/PP2RPPP/6K1 w - - 0 23","m":"f3d4 c8c1 e2e1 c1e1","r":488,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xsrpz","f":"7k/1p4p1/5bpp/4p3/1p1rP3/8/4RPPP/R5K1 w - - 0 35","m":"a1a7 d4d1 e2e1 d1e1","r":452,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XtXpT","f":"1rbq1k2/6pp/ppQr4/2p2p2/2P1p3/1N2P3/PP3PPP/R4RK1 w - - 1 22","m":"f1d1 d6d1 a1d1 d8d1","r":505,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"XtcGd","f":"k2r2Q1/pp3R1p/8/3p4/3P4/4P3/Pq4PP/5RK1 b - - 0 21","m":"d8g8 f7f8 g8f8 f1f8","r":578,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"XuVW5","f":"3r2k1/5pb1/4b1pp/8/rpP5/1P2PNB1/1P3PPP/R5K1 w - - 0 25","m":"a1a4 d8d1 f3e1 d1e1","r":482,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XuYBt","f":"4r1k1/p4pp1/1pp4p/8/1P1q4/3Q4/P4PPP/6K1 w - - 0 24","m":"d3d4 e8e1","r":402,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"Xuwdr","f":"6k1/1PB2pbp/2n3p1/4p3/8/1r6/5PPP/2R3K1 w - - 0 30","m":"c1c6 b3b1 c6c1 b1c1","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XvTVT","f":"3r2k1/pp1B1ppp/8/3p4/P7/1P6/5PPP/2R3K1 b - - 2 22","m":"d8d7 c1c8 d7d8 c8d8","r":444,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XvrXo","f":"2r3k1/npr3pp/p2b4/3P4/7P/1Q3N2/PP3P2/K3R1q1 w - - 0 26","m":"f3g1 c7c1 e1c1 c8c1","r":540,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Xw0oG","f":"2r3k1/5ppp/1p6/pP2P3/P2q4/8/5PPP/3R2K1 w - - 0 33","m":"d1d4 c8c1 d4d1 c1d1","r":437,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XwR1N","f":"Q6k/6pp/8/r3p3/1p6/8/1P2nrPP/R6K b - - 0 36","m":"a5a8 a1a8 f2f8 a8f8","r":402,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Xwr2L","f":"6k1/pp1q1ppp/5r2/2p5/6Q1/2PP3P/PP4P1/4R2K b - - 6 26","m":"d7g4 e1e8","r":514,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"XwrKg","f":"5r1k/R5pp/1p6/4pQ2/8/P5qP/8/7K b - - 2 34","m":"f8f5 a7a8 f5f8 a8f8","r":548,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"XwyYg","f":"r1Q4k/p4ppp/8/4N3/2R5/2n1P2P/2q2PP1/5RK1 b - - 0 27","m":"a8c8 c4c8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XwzLN","f":"3r2k1/5pp1/p6p/1b6/8/2R1R3/1P3PPP/6K1 w - - 4 28","m":"b2b4 d8d1 e3e1 d1e1","r":512,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XxXXu","f":"2r5/p5kp/3p2p1/3P1p2/P7/1P1q4/5PPP/3R2K1 w - - 0 29","m":"d1d3 c8c1 d3d1 c1d1","r":469,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Xxpqg","f":"r2r2k1/1pp2ppp/p7/3Q1n2/1P2R3/P4N2/5PPP/4R1K1 b - - 0 21","m":"d8d5 e4e8 a8e8 e1e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XxqI2","f":"3r1Q1k/pp4pp/7q/2PpP1b1/1P1n2B1/P5NP/6P1/5RK1 b - - 2 27","m":"d8f8 f1f8","r":455,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"XxwVE","f":"8/5kp1/rp3p2/2p5/1r6/3R4/6PP/R6K w - - 0 40","m":"a1a6 b4b1 d3d1 b1d1","r":551,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"XyCQW","f":"6k1/1b3ppp/p7/1pn5/2N5/P1P4P/B1Pr1PP1/4R1K1 b - - 0 24","m":"b5c4 e1e8","r":486,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"XySaH","f":"2r3k1/p4ppp/5n2/8/P1R5/5P2/6PP/3R3K b - - 0 30","m":"c8c4 d1d8 f6e8 d8e8","r":554,"t":"backRankMate endgame mate mateIn2 short"},{"i":"XyY09","f":"8/7p/6p1/3r1k2/5p1P/8/4NPP1/1R3K2 w - - 2 37","m":"b1b7 d5d1","r":442,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Xz3GE","f":"2b4k/6pp/3p1r2/2pP1p2/2P2P2/3P4/p5PP/4R1K1 b - - 0 29","m":"f6f7 e1e8 f7f8 e8f8","r":488,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"XzSl8","f":"2b1r3/1p3p1k/p3q1pp/2P5/PP6/5B2/1b1Q1PPP/3R2K1 w - - 0 30","m":"d2b2 e6e1 d1e1 e8e1","r":420,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Y02sD","f":"k1r5/p4p2/7p/1P1q4/5P2/8/6PP/3R3K w - - 0 37","m":"d1d5 c8c1 d5d1 c1d1","r":543,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Y09e2","f":"5r1k/1p3Qpp/p1n5/2P5/2P5/1P4P1/P6P/4R1K1 b - - 0 30","m":"f8f7 e1e8 f7f8 e8f8","r":420,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y0LpH","f":"3r2k1/1p1q1ppp/pB2b3/8/8/6Q1/PP3PPP/2r1R1K1 w - - 0 24","m":"e1c1 d7d1 c1d1 d8d1","r":576,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Y0QtJ","f":"2k1r3/1pp3pp/3pq3/p2n4/8/5Q2/P4PPP/R1R3K1 w - - 0 27","m":"c1c2 e6e1 a1e1 e8e1","r":537,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Y0bmR","f":"3rQ1k1/1q3ppp/pp6/2p5/3r4/2N2PP1/PP2R1KP/R7 b - - 1 27","m":"d8e8 e2e8","r":527,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Y0mFR","f":"3r2k1/pp3ppp/8/3Q4/8/5P2/PP4P1/2R3K1 b - - 0 26","m":"d8d5 c1c8 d5d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Y0wjI","f":"5r2/pp4k1/2p2qp1/2p1Q3/4P3/2P5/PP6/K6R w - - 1 40","m":"e5c5 f6f1 h1f1 f8f1","r":563,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Y1nb6","f":"3n3k/pp4pp/4Bp2/4p3/8/4P3/1r4PP/2R3K1 b - - 1 30","m":"d8e6 c1c8 e6d8 c8d8","r":403,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y1rN7","f":"r4r1k/ppp3nn/3pB3/6q1/5P2/7Q/PPP3PP/R1B4K w - - 0 26","m":"f4g5 f8f1","r":464,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Y2hpI","f":"q4Q1k/6pp/p7/1p4r1/1P2n3/P6P/R5P1/5RK1 b - - 2 26","m":"a8f8 f1f8","r":460,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Y2kkL","f":"2r4k/6pp/5p2/R7/2P5/8/6P1/6K1 b - - 0 35","m":"c8c4 a5a8 c4c8 a8c8","r":410,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Y2pJc","f":"2rr2k1/5ppp/4p3/p2b2P1/1pn2P1P/3R1B2/PPP2N2/2KR4 b - - 1 28","m":"d5f3 d3d8 c8d8 d1d8","r":570,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"Y2tbr","f":"2R5/4bppk/rp2p2p/4N3/1P1Pp3/4P3/5PPP/6K1 w - - 1 24","m":"e5f7 a6a1 c8c1 a1c1","r":553,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y2uNq","f":"4r3/p1nk1p1p/2p5/3p2p1/3P1p1Q/B3qP2/PPP3PP/R6K w - - 0 28","m":"h4h7 e3e1 a1e1 e8e1","r":545,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Y3Or3","f":"2Q3k1/5ppp/p3b3/4b3/8/4B3/PPP2PPq/R2R1K2 b - - 0 23","m":"e6c8 d1d8","r":446,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Y3Q2D","f":"5Q1k/p2n2pp/2p5/1p6/3P3P/1rP5/P5q1/K2R1R2 b - - 0 25","m":"d7f8 f1f8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Y3wkY","f":"2b3k1/2r2ppp/5n2/3p4/nN1N4/4P3/5PPP/R5K1 w - - 0 29","m":"a1a4 c7c1","r":453,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Y41pH","f":"3r2kr/pp3ppp/6q1/5b2/5P2/2Q1PN2/5R2/2R1K3 b - - 2 33","m":"d8c8 c3c8 f5c8 c1c8","r":529,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Y475L","f":"6k1/1p4p1/2pr3p/5n2/8/1P2PN2/PbP2PPP/1R4K1 w - - 0 22","m":"b1b2 d6d1 f3e1 d1e1","r":426,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y4Wqj","f":"r2r2k1/1pB2ppp/2p2b2/p2p4/3P4/2P5/PP2RPPP/4R1K1 b - - 5 21","m":"d8e8 e2e8 a8e8 e1e8","r":536,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y4lXQ","f":"6k1/2p2ppp/prp1p3/8/3q4/2RQ2B1/P4PPP/6K1 w - - 0 24","m":"d3d4 b6b1 c3c1 b1c1 d4d1 c1d1","r":401,"t":"backRankMate endgame long mate mateIn3"},{"i":"Y4zMZ","f":"2r2r1k/p5p1/1p2pnQp/8/1P1p4/P6R/5PPP/1B4qK w - - 0 32","m":"h1g1 c8c1","r":528,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Y5GwC","f":"3r2k1/5pPp/6p1/pb1P4/1p2r3/8/PP3PPP/R1BN1K1R w - - 1 21","m":"f1g1 e4e1","r":569,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Y5IWi","f":"8/1r3pkp/pr4p1/4p3/2PpP3/R2P4/5PPP/5RK1 w - - 2 28","m":"f1a1 b6b1 a1b1 b7b1","r":542,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Y63HU","f":"1k4r1/ppp5/3p4/3Pn3/4RP2/1NP4p/P5r1/4R2K b - - 0 36","m":"e5d7 e4e8 g8e8 e1e8","r":462,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y6AFX","f":"3rQ2k/6pp/p1b5/1p1pR3/2pq4/P4BPP/1P4K1/4R3 b - - 4 31","m":"d8e8 e5e8 c6e8 e1e8","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y6BmT","f":"Q7/5r1k/4Nqpp/8/3N4/8/6PP/7K w - - 12 45","m":"a8a1 f6f1 a1f1 f7f1","r":466,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y6DRg","f":"3r2k1/8/p6p/4R1p1/bp6/6B1/1P3PPP/6K1 w - - 2 32","m":"e5e6 d8d1 e6e1 d1e1","r":498,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y6ely","f":"4r1k1/5ppn/p2Q3p/1p6/5B2/8/P4PPP/2q3K1 w - - 0 25","m":"f4c1 e8e1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Y72SY","f":"2k4r/pppQ3p/4p2B/2b1q3/2P5/5P1K/P2R2P1/8 b - - 7 28","m":"c8b8 d7d8 h8d8 d2d8","r":561,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Y7An3","f":"3r3k/6pp/p1p5/4Pp2/p4P2/8/PP3qPP/5R1K w - - 0 27","m":"f1f2 d8d1 f2f1 d1f1","r":441,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Y7TyB","f":"3r2k1/p4p1p/6pQ/4q3/2r5/8/P1P2PPP/4R1K1 w - - 0 21","m":"e1e5 d8d1 e5e1 d1e1","r":538,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Y7WzD","f":"r3r1k1/pp3ppp/5b2/3R4/8/6B1/PPP2PPP/4R1K1 w - - 1 18","m":"c2c3 e8e1","r":470,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"Y7eoR","f":"6k1/2K2ppp/1R2b3/8/8/8/6rP/8 b - - 0 50","m":"g2h2 b6b8 e6c8 b8c8","r":432,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y7gpP","f":"1r4k1/p4p1p/6p1/8/8/B1P5/r4PPP/R5K1 w - - 0 24","m":"a1a2 b8b1 a3c1 b1c1","r":559,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y7yqB","f":"1R5r/p2r1kp1/2N1pp1p/8/8/2P5/5PPP/6K1 w - - 2 32","m":"b8h8 d7d1","r":420,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"Y8bqi","f":"2r3k1/2P2ppp/1p6/8/8/R1p4P/5PP1/6K1 b - - 1 29","m":"c8c7 a3a8 c7c8 a8c8","r":496,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Y8s4n","f":"1nr3k1/Rb3pp1/6Np/1p2P1B1/4p3/1Q6/5PPP/2q3K1 w - - 1 25","m":"g5c1 c8c1 b3d1 c1d1","r":424,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Y9GiY","f":"6k1/5ppp/1r1pp3/p7/n3P3/N1P2P1P/6P1/1R5K b - - 1 29","m":"b6c6 b1b8 c6c8 b8c8","r":556,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y9SJ9","f":"1B4k1/2R2ppp/2q1p3/3pP3/8/8/1Pn2PPP/6K1 b - - 2 27","m":"c6a4 c7c8 a4e8 c8e8","r":491,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Y9tl6","f":"2r3k1/5ppp/p3p3/8/Pp6/1P5P/2Q2PP1/1NbR2K1 b - - 0 30","m":"c8c2 d1d8","r":416,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Y9zAy","f":"1r6/6p1/3kp2p/n1N2p2/3Pp3/2P5/5PPP/R5K1 w - - 0 30","m":"a1a5 b8b1","r":456,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YAAPs","f":"4r1rk/4q2p/p2p1npB/2n2p2/1p1Q1P2/8/PPP2NPP/R4RK1 w - - 4 26","m":"f1e1 e7e1 a1e1 e8e1","r":452,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"YAp3x","f":"6k1/5pp1/2R4p/r2pP3/8/1p6/PP3PPP/6K1 w - - 0 30","m":"a2b3 a5a1 c6c1 a1c1","r":427,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YB1u8","f":"4r2k/1p2q1p1/2p5/1n1p2QP/p7/P4P2/BPP5/1K5R w - - 1 32","m":"g5g6 e7e1 h1e1 e8e1","r":505,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"YBS7t","f":"6k1/ppr2ppp/4p3/4P3/1P1r3P/P7/1qp2QPK/2R2R2 b - - 1 32","m":"c7c4 f2f7 g8h8 f7e8","r":588,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YBeLj","f":"8/2r3pk/1pr4p/3p4/3P4/4P3/1R3PPP/5RK1 w - - 0 36","m":"f1b1 c6c1 b1c1 c7c1","r":437,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YBsXg","f":"r1b2r1k/ppp2Bpp/8/4P3/3RpB2/8/P1P3PP/5R1K b - - 0 17","m":"f8f7 d4d8 f7f8 d8f8","r":456,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YBzXZ","f":"r5k1/ppp2ppp/8/8/4Q1n1/2P5/PP1N1qPP/4R2K b - - 1 19","m":"f2d2 e4e8 a8e8 e1e8","r":572,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"YCoUH","f":"r1b3k1/1p2rppp/p1B1p3/8/8/2N4P/PP3PP1/2KR3R b - - 0 19","m":"b7c6 d1d8 e7e8 d8e8","r":459,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YDQ2b","f":"8/p2R2p1/4k2p/8/5p2/5P2/P1r3PP/7K w - - 2 26","m":"d7a7 c2c1","r":509,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"YDaGO","f":"2rrk3/p2b3B/4p3/4P1Q1/3R1p2/q6P/5PPB/R5K1 w - - 0 28","m":"a1a3 c8c1 d4d1 c1d1","r":419,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"YDf3A","f":"6k1/1pr2pp1/4p2p/n2pN3/Pq1P4/4P3/1Q3PPP/2R3K1 w - - 2 26","m":"b2b4 c7c1 b4e1 c1e1","r":528,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"YDhxZ","f":"k1Qr2r1/pp4p1/8/3Pp2p/2R4P/3q4/5PP1/2R3K1 b - - 3 29","m":"d8c8 c4c8 g8c8 c1c8","r":592,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"YDj0c","f":"6k1/B4ppp/2r1pn2/P7/8/3b2NP/5PP1/3R2K1 b - - 2 26","m":"d3a6 d1d8 f6e8 d8e8","r":522,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YDr0N","f":"r4rk1/1Q3Rp1/p3p2p/8/8/8/P5PP/5q1K w - - 0 27","m":"f7f1 f8f1","r":506,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"YE1sO","f":"6k1/5ppp/p2R4/Np3P2/6PP/2n2K2/4r3/8 b - - 5 39","m":"b5b4 d6d8 e2e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YEOFU","f":"r2n2k1/bp4pp/p3R3/8/4p3/1N6/PPP2rPP/R1B4K w - - 0 17","m":"e6e4 f2f1","r":497,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"YF5sA","f":"1k5r/ppp3p1/5p2/5q2/2PRN3/1P2PBPp/P4P2/3R2K1 b - - 2 23","m":"f5f3 d4d8 h8d8 d1d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YFPlR","f":"2k2r2/pb1n4/1ppB4/8/2P3Q1/P7/6PP/3R1q1K w - - 3 30","m":"d1f1 f8f1","r":431,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YFY34","f":"2k5/1p4R1/p7/8/8/2P5/r4PPP/3R2K1 w - - 0 33","m":"d1d7 a2a1 d7d1 a1d1","r":589,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YFv3c","f":"5r2/3k4/2N2r1p/3p2p1/8/3B4/PPQ3PP/2R2q1K w - - 2 27","m":"c1f1 f6f1 d3f1 f8f1","r":577,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YFvtc","f":"r5k1/ppq2ppp/7n/2pp3r/8/5N2/PPP1QPPP/4RRK1 b - - 5 20","m":"h6g4 e2e8 a8e8 e1e8","r":499,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"YFwnp","f":"r5k1/1p3pp1/p1n4p/2p5/P5b1/1B1P2P1/1PP2RPP/R1B1r2K w - - 1 18","m":"f2f1 e1f1","r":441,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"YG1UD","f":"2r1R2k/r2Q2pp/1p6/8/8/1P6/2q2PPP/6K1 b - - 1 24","m":"c8e8 d7e8","r":571,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YGONi","f":"3r3k/pp4pp/8/q6B/4P3/3P4/3R2PP/2R1K3 b - - 0 28","m":"d8d3 c1c8 d3d8 c8d8 a5d8 d2d8","r":593,"t":"backRankMate endgame long mate mateIn3"},{"i":"YGqO3","f":"6k1/1qB2ppp/p3b3/4P3/1PR5/1n2P3/1P2NPPP/3R2K1 b - - 0 23","m":"e6c4 d1d8","r":450,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YGqYu","f":"3r3k/ppp3p1/5b1p/2P5/1PbB4/P3Q3/5PPP/6K1 w - - 0 39","m":"d4f6 d8d1 e3e1 d1e1","r":462,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YH2zj","f":"6k1/p1R2ppp/8/1B2n3/5P2/n5PP/8/7K b - - 0 31","m":"a3b5 c7c8","r":454,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YHhX3","f":"1k3r2/1p1Q4/p2p3p/4p1p1/1P1p4/P2P2P1/6PP/R4q1K w - - 6 28","m":"a1f1 f8f1","r":440,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"YHr7t","f":"4r1k1/3R1ppp/8/pp6/2p5/P6P/1P2RPK1/8 b - - 0 28","m":"e8e2 d7d8 e2e8 d8e8","r":478,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YHypU","f":"Rn1r4/2p1k1pp/4p3/1Pb2p2/8/5P2/4Q1PP/7K w - - 0 26","m":"e2c4 d8d1 c4f1 d1f1","r":482,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YIUtz","f":"5r1k/p5pp/1p1p2r1/6q1/8/1NP2Q1P/PP2R1P1/5NK1 b - - 0 26","m":"f8f3 e2e8 f3f8 e8f8","r":506,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YIbGl","f":"rQ4k1/p1p2ppp/2q1p3/3p4/2nP1P1P/2P1PP2/P7/1RB2RK1 b - - 0 18","m":"a8b8 b1b8 c6e8 b8e8","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YImzN","f":"3r1r1k/5Rpp/p1p1Q3/4P1b1/8/8/P5PP/R2q3K w - - 5 24","m":"a1d1 d8d1 f7f1 d1f1","r":456,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YJBVe","f":"8/p5k1/7p/1pp3p1/4q3/2P4Q/PP6/K3r1R1 w - - 10 41","m":"g1e1 e4e1","r":515,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"YJLK4","f":"3Q3k/ppp3pp/2n5/2q5/4RP2/1Bp5/P1PpK1PP/8 b - - 0 26","m":"c6d8 e4e8 c5f8 e8f8","r":570,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"YJQVj","f":"4r2k/1p4pp/2p3p1/8/4Q3/7P/6P1/3R3K b - - 0 34","m":"e8e4 d1d8 e4e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YJQbD","f":"6k1/5pp1/2r4p/3p4/3P4/r3P3/5PPP/2R3K1 w - - 0 27","m":"c1c6 a3a1 c6c1 a1c1","r":480,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YJavk","f":"3r2k1/1p3pp1/p2r3p/2N5/8/4B3/PP3PPP/R5K1 w - - 0 27","m":"c5b7 d6d1 a1d1 d8d1","r":447,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YKLKh","f":"N2k4/pp2p3/3p2p1/2P4p/5r2/7Q/PP2n1PP/2R2q1K w - - 3 28","m":"c1f1 f4f1","r":467,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YKhTw","f":"4r1k1/pp2Qppp/7b/2p5/8/1PP3P1/7P/3R3K b - - 0 36","m":"e8e7 d1d8 e7e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YLHsV","f":"3q3k/1b4bp/4ppp1/p3p3/BpP1P2B/1P2Q3/P4PPP/6K1 w - - 0 29","m":"e3a7 d8d1","r":444,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YLrUK","f":"5k2/p2R4/5Pp1/7P/1p4r1/4p3/PPP1R3/1K6 w - - 0 35","m":"h5g6 g4g1 e2e1 g1e1 d7d1 e1d1","r":463,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"YM4gY","f":"3Q4/pp1R4/k1p5/3p4/3P4/3q3P/PP6/KR1r4 w - - 3 31","m":"b1d1 d3d1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YMeri","f":"4r1k1/p1p3p1/2p5/2bp4/6Q1/2P5/PP1P1RPP/R1B4K w - - 1 21","m":"d2d4 e8e1 f2f1 e1f1","r":558,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YNqak","f":"1n3rk1/p1R2pp1/3r3p/8/8/7N/2P2PPP/4R1K1 w - - 0 25","m":"e1e7 d6d1 e7e1 d1e1","r":586,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YNsqY","f":"5r1k/6pp/8/1Rp2P2/8/2r4P/2P3P1/2R3K1 b - - 0 26","m":"f8f5 b5b8 f5f8 b8f8","r":481,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YNtTN","f":"4rrk1/p1pR3p/1p4p1/8/2P5/1P2qP2/PQ4PP/3R2K1 w - - 7 29","m":"g1h1 e3e1 d1e1 e8e1","r":579,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"YO17M","f":"r1br2k1/pp3ppp/4p3/3n4/8/PNQ1BP2/2P3PP/2KR3R b - - 0 16","m":"d5c3 d1d8","r":494,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"YOBEO","f":"r1b1r1k1/p3qp1p/2p3p1/1pN2p2/2pb1N2/4PQ2/PPP2PPP/3RR1K1 w - - 0 17","m":"e3d4 e7e1 d1e1 e8e1","r":539,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"YOD3h","f":"6k1/p2R1ppp/1p4b1/8/1K1Nr3/P4q2/1P3P2/3R4 b - - 10 30","m":"f3d1 d7d8 e4e8 d8e8","r":586,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YOFMC","f":"rn4k1/ppp2ppp/8/3p4/q2P4/P1PP1P2/3K2PP/4R1NR b - - 0 15","m":"c7c6 e1e8","r":486,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YOQQP","f":"r1n1rQ1k/p5pp/3Bp3/3pP1q1/2pPp3/2P1P3/P5PP/1R3RK1 b - - 9 23","m":"e8f8 f1f8","r":585,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"YORCw","f":"r1b3k1/1p3ppp/p1q1pb2/8/2B5/2NQ4/PP3PPP/3R2K1 b - - 1 18","m":"b7b5 d3d8 f6d8 d1d8 c6e8 d8e8","r":571,"t":"backRankMate long mate mateIn3 middlegame sacrifice"},{"i":"YOwnc","f":"1r6/2k1r2p/Qpp3p1/4q3/1P1N4/2P5/P4PPP/3R2K1 w - - 3 35","m":"a6a4 e5e1 d1e1 e7e1","r":573,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"YPDhP","f":"2kr4/ppp2p2/4p2Q/2N2p2/1P4p1/8/P3nPPP/3q1R1K w - - 0 27","m":"f1d1 d8d1","r":580,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YQ0TM","f":"8/1r3p1k/4p1pp/4q3/8/8/2Q3PP/1R5K w - - 0 51","m":"b1b7 e5e1","r":555,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YQNJg","f":"2r3k1/5pp1/p6p/1p1R4/3Pp3/P3P3/1Pr2PPP/1R4K1 w - - 3 24","m":"d5e5 c2c1 b1c1 c8c1","r":573,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YQdYE","f":"r1b1r3/p1p3kp/1pnp2p1/6Q1/3p1B2/8/PPPN1PPP/R1K1q2R w - - 4 18","m":"h1e1 e8e1","r":504,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"YQm2b","f":"r1b2Q1k/1p4pp/3q4/p1pPp3/P3P3/3B3P/1PP3P1/5RK1 b - - 0 24","m":"d6f8 f1f8","r":476,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"YR5wo","f":"3r2k1/p3Rppp/1p1pb1q1/8/2Q5/6N1/P4PPP/4R1K1 b - - 0 25","m":"e6c4 e7e8 d8e8 e1e8","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YREVA","f":"2r1r1k1/4qppp/ppp5/3b4/5Q2/2NR4/PP3PPP/3R2K1 w - - 4 25","m":"c3d5 e7e1 d1e1 e8e1","r":448,"t":"backRankMate master mate mateIn2 middlegame sacrifice short"},{"i":"YRU05","f":"2r4r/1p1k1p2/p2ppp1p/8/3q4/7Q/PP2RPPP/3R2K1 w - - 0 27","m":"d1d4 c8c1 d4d1 c1d1 e2e1 d1e1","r":507,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"YRkop","f":"r1b5/1p2pPkp/6p1/p1pr4/P7/8/1PP2PPP/RN2R1K1 w - - 0 20","m":"e1e7 d5d1 e7e1 d1e1","r":515,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YSSdK","f":"2brr1k1/p5p1/1p3b2/3P4/2P5/P7/2Q3PP/5R1K w - - 4 31","m":"f1f6 e8e1 f6f1 e1f1","r":576,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"YSnIF","f":"5r1k/6pp/p2p4/1p3P2/8/7P/PP4P1/2R3K1 b - - 0 29","m":"f8f5 c1c8 f5f8 c8f8","r":530,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YTejq","f":"5rk1/pp2n1p1/2n5/3p4/6Q1/2P2N2/PP4PP/4q2K w - - 0 22","m":"f3e1 f8f1","r":599,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"YTj4C","f":"1r3Q1k/6pp/p2p4/3Bn3/4P3/2q3PP/6K1/5R2 b - - 3 35","m":"b8f8 f1f8","r":487,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YTtj4","f":"3r2k1/5ppp/2pQ4/3pp3/p7/7P/P4PP1/1R4K1 b - - 0 30","m":"d8d6 b1b8 d6d8 b8d8","r":447,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YTyYx","f":"2Nr3k/pp3pp1/4b2p/2q5/8/P5B1/1P4PP/2R4K w - - 0 31","m":"c1c5 d8d1 g3e1 d1e1","r":590,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YUE41","f":"r1qQ1k2/p3npp1/1p4p1/8/8/1P5P/P2R4/1K1R4 b - - 3 30","m":"c8d8 d2d8 a8d8 d1d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YUUnz","f":"8/5pp1/Rp3nkp/2p5/8/2N5/PPr2PPP/6K1 w - - 0 29","m":"a6b6 c2c1 c3d1 c1d1","r":457,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YVJ73","f":"r4b2/4r1k1/pQ1R2pp/2p2p2/8/N1P5/PP2qPPP/R4K2 w - - 9 24","m":"f1g1 e2e1 a1e1 e7e1","r":579,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"YVsup","f":"2q3k1/5ppp/2Q1p3/p1pp4/P2P4/4P3/5PPP/1R4K1 b - - 0 24","m":"c8c6 b1b8 c6c8 b8c8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"YWE3R","f":"3rnrk1/1p1qbpp1/p3p2p/4n3/3PN3/P4Q2/1P2NPPP/R2R2K1 w - - 0 18","m":"d4e5 d7d1 a1d1 d8d1","r":419,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"YWKxG","f":"8/rk5p/4P1p1/1pQp2N1/1P1P4/8/5PPP/6K1 w - - 5 34","m":"e6e7 a7a1 c5c1 a1c1","r":518,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YWXGL","f":"4r1k1/2p2ppp/p4b2/1p1p1q2/3P1B2/2P5/PPQ2PPP/6K1 w - - 0 22","m":"c2f5 e8e1","r":428,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YWton","f":"2r1Q1k1/p4ppp/3B4/8/8/7P/P2q1PP1/4R1K1 b - - 1 23","m":"c8e8 e1e8","r":492,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YX1PV","f":"3r3k/p1p3pp/8/6q1/8/5Q2/PPP1r1PP/R4RK1 b - - 2 22","m":"e2c2 f3f8 d8f8 f1f8","r":440,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"YXFfR","f":"2b3k1/p1p2pP1/2p4p/4r3/8/5R2/P1q2QPP/7K w - - 0 26","m":"f2c2 e5e1 f3f1 e1f1","r":422,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YXHDB","f":"3r2k1/p2r2pp/4p3/3q1p2/QP2p3/P3P3/5PPP/1R3RK1 w - - 3 25","m":"f1d1 d5d1 b1d1 d7d1 a4d1 d8d1","r":430,"t":"backRankMate endgame long mate mateIn3"},{"i":"YXHul","f":"2r2k2/5pp1/Q3p1p1/3p4/2r5/6P1/PP5P/K1qR3R w - - 3 29","m":"d1c1 c4c1 h1c1 c8c1","r":514,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"YXqjE","f":"3k1r2/pQ4pp/3b4/4p3/8/2Pq1B2/P5PP/R6K w - - 3 27","m":"a1d1 d3d1 f3d1 f8f1","r":591,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"YY7u0","f":"1r4k1/5ppp/8/8/R1p5/2P1KP2/1P5P/8 b - - 2 31","m":"b8b2 a4a8 b2b8 a8b8","r":519,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YYDSd","f":"2q2r1k/pp4pp/8/8/4Q3/8/2P3PP/4R2K b - - 0 34","m":"f8e8 e4e8 c8e8 e1e8","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YYF5a","f":"r1Q3k1/1p3ppp/p3p3/3pPn2/q7/5N1P/3N1PP1/2R3K1 b - - 1 22","m":"a8c8 c1c8 a4e8 c8e8","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YYKUh","f":"3r4/1p3pk1/pNn1Bbpp/8/4p2N/2P3Q1/PP3PPP/R2q2K1 w - - 1 26","m":"a1d1 d8d1","r":448,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"YYTU8","f":"4r1k1/p1R2ppp/8/2p5/2p2B2/2P2b2/P6P/6K1 b - - 0 26","m":"e8e2 c7c8 e2e8 c8e8","r":590,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YYlwf","f":"8/6pp/6k1/3Rp1B1/8/2P5/r1P2PPP/6K1 w - - 0 25","m":"g5e3 a2a1 e3c1 a1c1 d5d1 c1d1","r":471,"t":"backRankMate endgame long mate mateIn3"},{"i":"YYsaD","f":"3r2k1/4bpp1/4p2p/p3P3/2RP4/P2r4/1PRN1PPP/6K1 w - - 5 29","m":"d2f3 d3d1 f3e1 d1e1","r":401,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"YZ1b0","f":"2Q1r1k1/p2R1ppp/8/5q2/8/8/1PP2PPP/1K1R4 b - - 0 23","m":"e8c8 d7d8 c8d8 d1d8","r":511,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"YZ9Af","f":"6k1/5ppp/1R2p3/n2r4/8/6P1/3NPP1P/6K1 b - - 0 31","m":"d5d2 b6b8 d2d8 b8d8","r":583,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YZCVD","f":"5rk1/p5pp/8/3ppr2/P3P2Q/8/6PP/Rq5K w - - 0 25","m":"a1b1 f5f1 b1f1 f8f1","r":510,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Ya4Qo","f":"3r4/k1pq1ppp/pn6/8/3QB3/2P5/P4PPP/1R4K1 w - - 6 24","m":"d4c5 d7d1 b1d1 d8d1","r":419,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"Ya8Wj","f":"rn1Q3k/p2prBpp/1pb2p2/6q1/1P1BP3/P4P2/2K3P1/6R1 b - - 2 24","m":"e7e8 d8e8","r":415,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"YaMpl","f":"4r1k1/6p1/3R3p/1p6/3p4/8/PP3PPP/6K1 w - - 2 36","m":"d6d4 e8e1","r":415,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"YaTjX","f":"r1b3k1/ppq2ppp/2n1p3/1Q1N4/5r2/4R3/1P4PP/R5K1 b - - 1 25","m":"e6d5 e3e8","r":534,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"YaUpW","f":"8/3r1p1k/p4bp1/q3Q2p/P3P3/1P6/2P2PPP/3R2K1 w - - 0 27","m":"e5a5 d7d1 a5e1 d1e1","r":512,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"YaxSd","f":"4r1k1/1p4pp/2pQ4/2n2p2/8/P7/2P1r1PP/Rq5K w - - 0 24","m":"a1b1 e2e1 b1e1 e8e1","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Yb47E","f":"8/p1r3k1/1p2q1pp/8/8/P4R2/6PP/4R2K w - - 0 34","m":"e1e6 c7c1 e6e1 c1e1 f3f1 e1f1","r":489,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"Yb4sj","f":"r1b2Q1k/p5pp/2p1n3/1p2b3/4N2q/2PP4/PP4PP/R1B2R1K b - - 6 19","m":"e6f8 f1f8","r":486,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"YbT8h","f":"2r4k/p1r3pp/1b2R3/8/8/B5PP/5P2/4R1K1 b - - 2 40","m":"c7c2 e6e8 c8e8 e1e8","r":531,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YbkHZ","f":"6k1/1N2Rp1p/2p1b1p1/rpP2p2/3r4/P7/1P3PPP/6K1 w - - 0 30","m":"b7a5 d4d1","r":550,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YbqoA","f":"Q7/6kp/6p1/4r3/2P5/1P3P2/P2N2PP/3Rq2K w - - 3 37","m":"d1e1 e5e1 d2f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Yc2Ju","f":"3r2k1/pp1N1ppp/4p3/8/8/1P6/P4PPP/2R4K b - - 0 23","m":"d8d7 c1c8 d7d8 c8d8","r":406,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Yc35i","f":"5r1k/p1p3pp/1p6/3R1p2/4p3/2P1P1P1/PP3P1P/6K1 b - - 0 26","m":"f8f7 d5d8 f7f8 d8f8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YchKS","f":"6k1/6pp/1R2b3/8/2prB3/8/P1P2PPP/6K1 w - - 0 26","m":"b6e6 d4d1","r":406,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YcnQI","f":"1r6/6kp/5pp1/p1r1p3/P2p4/R7/5PPP/2R3K1 w - - 0 28","m":"c1c5 b8b1 c5c1 b1c1","r":599,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YdE84","f":"r5k1/3N1ppb/4p2p/1R1p4/7P/5BP1/2r2P2/6K1 b - - 5 31","m":"a8a2 b5b8 c2c8 b8c8","r":573,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YdPxP","f":"6k1/5ppb/R6p/1p1p4/3Pn1P1/1P3B1P/1Pr2P1B/6K1 b - - 0 29","m":"c2b2 a6a8","r":584,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YdUkX","f":"7k/pp4pp/4Q3/3p4/1P1K4/P4R2/6q1/RN2r3 b - - 6 34","m":"e1e6 f3f8","r":485,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Ydj4m","f":"r3r1k1/pp2qp2/2n2n2/2pp1Q2/7B/2NP4/PPP2PPP/R5K1 w - - 2 18","m":"h4f6 e7e1 a1e1 e8e1","r":572,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"YeN68","f":"8/2R4p/1p4pk/pN2r3/P1P5/1P6/3n2PP/5R1K w - - 3 33","m":"f1f7 e5e1 f7f1 e1f1","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YecY3","f":"2R5/4Qppk/7p/8/P2P4/3qP3/P4PPP/6K1 w - - 1 39","m":"c8e8 d3d1","r":549,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"Yelcb","f":"1k2r3/pPp5/3p2R1/1Q6/8/2N4r/PPP5/1K2q1R1 w - - 2 33","m":"g1e1 e8e1 c3d1 e1d1","r":541,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Yene1","f":"3r2k1/5ppp/p2R3q/1pp5/8/P3Pb2/1P2QPP1/5RK1 b - - 0 23","m":"f3e2 d6d8","r":584,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"YeqKA","f":"5r2/Qp4bk/6p1/P1R4p/4pN2/3qP3/6PP/7K w - - 0 35","m":"f4d3 f8f1","r":530,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YewGG","f":"4r1k1/pp3ppp/2p5/4Q3/4P3/7P/PPP3P1/2KR4 b - - 0 24","m":"e8e5 d1d8 e5e8 d8e8","r":480,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Yf3fx","f":"7k/ppq2rpp/2p5/4Q3/8/P2R2P1/1P3P1P/6K1 b - - 5 36","m":"c7e5 d3d8 e5e8 d8e8 f7f8 e8f8","r":491,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"Yf8Re","f":"5b1r/3Rpkp1/4N2p/8/p4B2/2P5/R4PPP/1r4K1 w - - 1 31","m":"f4c1 b1c1 d7d1 c1d1","r":464,"t":"backRankMate hangingPiece mate mateIn2 middlegame short"},{"i":"YfQKE","f":"6k1/p2r1ppp/2p3r1/8/1R1P4/5P2/P4P1P/R6K b - - 5 24","m":"a7a5 b4b8 d7d8 b8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YfRs0","f":"1k2r3/pp4p1/3p3r/4qp1p/3R4/2P3N1/PP1QB1PP/7K w - - 2 30","m":"e2f3 e5e1 d2e1 e8e1 g3f1 e1f1","r":473,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"YfSpb","f":"r5k1/5p2/7p/4r1p1/8/1P6/5PPP/4R1K1 w - - 0 30","m":"e1e5 a8a1 e5e1 a1e1","r":504,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YfoTL","f":"3rk3/pp2p3/1np4R/8/4N1P1/4b1B1/PPP3P1/2KR4 w - - 1 22","m":"c1b1 d8d1","r":555,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"YfrKe","f":"3r3k/p1R3pp/1p6/8/3Q4/P5P1/1P5P/6K1 b - - 0 32","m":"d8d4 c7c8 d4d8 c8d8","r":484,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YglFc","f":"6k1/1p3pp1/p5p1/3r4/1P6/P3r1P1/6PP/4R2K w - - 0 32","m":"e1e3 d5d1 e3e1 d1e1","r":420,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YhFsD","f":"3k4/1b1n2pp/p2r1p2/1p1B4/1P6/P3Q3/5PPP/3R2K1 w - - 3 41","m":"d5b7 d6d1 e3e1 d1e1","r":450,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"Yhaii","f":"1k2r3/1B3ppp/1rpp1n2/2N5/8/8/R1P2PPP/1R4K1 w - - 2 28","m":"b1b6 e8e1","r":445,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YhqmQ","f":"3r4/1pk3p1/7p/2p5/4R3/1P6/P1P2PPP/6K1 w - - 1 33","m":"e4e2 d8d1 e2e1 d1e1","r":424,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YhrKI","f":"3rk2r/ppp1bpp1/7p/4N3/4n3/8/PPP2PPP/R1B1R1K1 w k - 0 13","m":"e1e4 d8d1 e4e1 d1e1","r":477,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Yi9so","f":"6k1/1p1R1ppp/6b1/8/2p2B2/5P2/r3r1PP/5R1K b - - 0 25","m":"g6d3 d7d8 e2e8 d8e8","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YiM5o","f":"6k1/3R1ppp/1p6/p1p5/3p4/Pb1P1P2/1P2r1PP/2K5 b - - 3 29","m":"e2e6 d7d8 e6e8 d8e8","r":571,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YiO49","f":"k2Q2r1/pp3p2/8/7p/2P3qP/8/PPP1PP2/2KR4 b - - 2 25","m":"g8d8 d1d8 g4c8 d8c8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"YiRUZ","f":"6k1/5ppp/R3b3/1P2P3/8/1p3P2/2p2KPP/2Rr4 b - - 0 28","m":"d1c1 a6a8 e6c8 a8c8","r":511,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YiTc8","f":"5r2/pp4rk/2p1Q3/3p2p1/4p2p/2P1R3/PP4PP/4Rq1K w - - 10 30","m":"e1f1 f8f1","r":452,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"YiXeg","f":"5rk1/pr3ppp/4p3/2R5/8/1P4P1/P4P1P/2R3K1 b - - 2 22","m":"f8b8 c5c8 b8c8 c1c8","r":572,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YigX9","f":"4r1k1/1p2Bppp/p2R4/8/8/1P5P/5PP1/6K1 b - - 0 33","m":"e8e7 d6d8 e7e8 d8e8","r":407,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Yipgq","f":"2krr3/Qp1nq1pp/2p5/2nP4/2P3B1/4B3/P4PPP/R3R1K1 w - - 0 21","m":"e3f4 e7e1 a1e1 e8e1","r":456,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"YisYi","f":"8/2p1np1R/1pk3p1/8/2q1r3/4B2P/5PPQ/3R2K1 w - - 5 30","m":"d1c1 c4c1 e3c1 e4e1","r":518,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"YjMAI","f":"1r6/3R1p1p/p2Qp3/k7/2p1P3/5P2/PPP3rP/1K6 w - - 3 32","m":"d6b8 g2g1 d7d1 g1d1","r":435,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"YjMvK","f":"5rk1/p5pp/4p3/4q3/5r2/P2Q4/6PP/4R2K w - - 0 28","m":"e1e5 f4f1 d3f1 f8f1","r":493,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"YjR1e","f":"4r2k/3R2pp/8/p1n5/1pP5/1P6/P3R1PP/6K1 b - - 0 32","m":"e8e2 d7d8 e2e8 d8e8","r":452,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YjR23","f":"6k1/5ppp/p2r4/8/1p1p2nK/1Pb1r3/2R3P1/R7 b - - 1 37","m":"c3a1 c2c8 d6d8 c8d8 e3e8 d8e8","r":487,"t":"backRankMate endgame long mate mateIn3"},{"i":"YjhFy","f":"6k1/pp3pbp/3p1n2/4p1q1/1R5B/8/PP4PP/2rQ3K w - - 2 35","m":"h4g5 c1d1","r":472,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"Yjizm","f":"6k1/p4ppp/4r3/2p5/3p4/2P2KPP/PP3P2/3R4 b - - 0 26","m":"d4c3 d1d8 e6e8 d8e8","r":594,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Yk4D3","f":"1k2r3/ppp1Q3/7p/2PP2p1/P7/8/6PP/5RK1 b - - 0 32","m":"e8e7 f1f8 e7e8 f8e8","r":582,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Yky1R","f":"3r3k/5pp1/2n3bp/p3p3/2q1N3/5PQ1/P5PP/2R4K w - - 0 32","m":"c1c4 d8d1 g3e1 d1e1","r":531,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Yl3kl","f":"2r3k1/4pp1p/3p1bp1/8/3P4/R3PB2/1r3PPP/1R4K1 w - - 0 25","m":"b1b2 c8c1 f3d1 c1d1","r":469,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YlEJm","f":"4r1k1/5ppp/2p5/2r2b2/p7/P4P2/2PR2PP/1BR3K1 b - - 2 28","m":"e8e3 d2d8 e3e8 d8e8","r":454,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YlNwv","f":"1k6/ppp5/7R/6rp/P7/1P1p2P1/2n2PKP/3Nr3 b - - 3 34","m":"e1d1 h6h8 g5g8 h8g8","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Yluk6","f":"r5k1/5ppp/4pn2/2R5/4bP2/5NP1/4BP1P/6K1 b - - 0 34","m":"a8a2 c5c8 f6e8 c8e8","r":493,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"Ylx4T","f":"7k/pp4pp/2p5/3p4/1P1P1P2/P5Pq/1B2b2P/4R1K1 b - - 1 27","m":"e2f3 e1e8","r":519,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Ymh6X","f":"3r2k1/1ppr1p2/p1p2Ppp/8/2P2Q2/1P6/P4PPP/1q2R1K1 w - - 0 26","m":"e1b1 d7d1 b1d1 d8d1","r":402,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"YmlEC","f":"2r2rk1/p2R1ppp/1p2p3/nP2P3/1N1Q4/8/P4PPP/6K1 w - - 7 26","m":"d7a7 c8c1 d4d1 c1d1","r":539,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Yn61h","f":"4r1k1/pp3ppp/n2p4/3P4/1P5n/P4N2/5PPP/R1B3K1 w - - 1 21","m":"f3h4 e8e1","r":477,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Yn9i2","f":"5rk1/7p/1p2p1pB/p2pP3/3Pp3/P1P5/1P4PP/R4q1K w - - 0 29","m":"a1f1 f8f1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YnDOe","f":"2r2k2/8/1p2p2p/4N1pN/8/8/P4PPP/3R2K1 w - - 1 36","m":"d1d7 c8c1 d7d1 c1d1","r":511,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YnRFW","f":"5rk1/5ppp/4p3/3n4/2RP4/7P/r4PP1/2R1K3 b - - 0 25","m":"f8a8 c4c8 a8c8 c1c8","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YnX8B","f":"r3Q1kr/p3Rppp/4p3/4P3/4pB2/2P5/q4PPP/5RK1 b - - 2 19","m":"a8e8 e7e8","r":562,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"Ynmgd","f":"4r1k1/R4ppp/8/4Q3/8/7P/5PPK/1r6 b - - 0 33","m":"e8e5 a7a8 b1b8 a8b8 e5e8 b8e8","r":410,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"YnudL","f":"r2q2k1/R4ppp/1Q1p4/2n5/3N4/6P1/4PPKP/8 b - - 0 32","m":"a8a7 b6d8","r":556,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"Yo7F9","f":"3rr1k1/p4p1p/6p1/2p1q1n1/N1P5/3P2R1/P1Q3PP/R6K w - - 6 24","m":"a4c3 e5e1 a1e1 e8e1","r":464,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"YoCko","f":"3r2k1/ppR2ppp/4p3/4P3/3N4/8/PP4PP/7K b - - 0 26","m":"d8d4 c7c8 d4d8 c8d8","r":410,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YoHHK","f":"2r3k1/p4ppp/4p3/3p1n2/8/4PN1P/P1Q2PP1/1R4K1 b - - 0 25","m":"c8c2 b1b8 c2c8 b8c8","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YoLzE","f":"8/6pp/1p2k3/8/P2bP3/5P2/1r4PP/3R3K w - - 0 29","m":"d1d4 b2b1 d4d1 b1d1","r":443,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YoW4V","f":"4R3/1R3ppk/1p5p/pP3n2/P7/2r5/5PPP/6K1 w - - 2 27","m":"b7b6 c3c1 e8e1 c1e1","r":536,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Yoobd","f":"r1b2rk1/pppp2p1/6p1/2b1n2Q/8/P1P5/2p3PP/R1B2R1K w - - 0 17","m":"h5e5 f8f1","r":474,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"Yp3mJ","f":"r3r1k1/R3Rppp/2p2q2/3p4/8/7P/P1P2PP1/2Q3K1 b - - 0 21","m":"a8a7 e7e8","r":531,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"YpAWb","f":"3r2k1/pp1P1ppp/4p3/3b4/1P1P4/P7/1B3PPP/2R3K1 b - - 0 27","m":"d8d7 c1c8 d7d8 c8d8","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YpHTM","f":"5r1k/6pp/8/4R3/3p2K1/5QP1/P6P/2r5 b - - 0 37","m":"f8f3 e5e8 f3f8 e8f8","r":473,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YpI4B","f":"2k1r3/ppp5/1q6/8/3R4/4P2B/8/3R2K1 b - - 1 33","m":"c8b8 d4d8 e8d8 d1d8","r":470,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"YpLtI","f":"1r2r1k1/p4pBp/1n1R2p1/2p2b2/4q3/QP3N2/P4PPP/1R4K1 w - - 0 24","m":"b1e1 e4e1 f3e1 e8e1","r":550,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"YpQRD","f":"1k6/pp4pp/4pn2/1b1pN2q/7N/2R1Q3/PP3PPP/6K1 w - - 4 23","m":"e3f4 h5d1","r":486,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Yq1NM","f":"2r3k1/5ppp/3R4/p3p3/4P3/P6P/2r2PP1/1K1R4 b - - 1 31","m":"c2c7 d6d8 c8d8 d1d8","r":548,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Yq6aM","f":"r1b2q1k/1p4pp/p2Q1p2/8/5p2/2N4P/PP3PP1/2R1R1K1 b - - 0 26","m":"f8d6 e1e8 d6f8 e8f8","r":449,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YqECE","f":"4r1k1/nBp2ppp/p3bp2/8/1P1r4/P1N3P1/2P2P1P/4RRK1 b - - 0 18","m":"e6c4 e1e8","r":569,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"YqLD2","f":"2r3k1/5ppp/8/3R4/4q3/8/7P/3R2K1 b - - 2 34","m":"c8c2 d5d8 e4e8 d8e8","r":408,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"YqV05","f":"2r2r2/5pk1/4p1p1/pp2P2Q/8/1P1P2R1/P5PP/R1q4K w - - 1 27","m":"a1c1 c8c1 h5d1 c1d1","r":432,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"YqaWF","f":"r5k1/3P2p1/5p1p/8/1Bp5/2P5/3n1PPP/3R2K1 w - - 0 32","m":"d1d2 a8a1 d2d1 a1d1","r":462,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Yqobd","f":"2r3k1/p5pp/1p3p2/3P4/4P3/1P6/4RPPP/7K w - - 1 32","m":"f2f4 c8c1 e2e1 c1e1","r":479,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YrCX7","f":"2r3k1/5pp1/p3p2p/1p6/3Pp3/7P/3b1PPB/3R2K1 w - - 0 27","m":"d1d2 c8c1 d2d1 c1d1","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YrMYe","f":"4r2k/pp4p1/2n2r1p/8/4N3/2PQ3B/P5PP/R3bq1K w - - 4 24","m":"d3f1 f6f1","r":576,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"YrOAr","f":"r4k1r/pq2npb1/6p1/2p4p/3p1B2/1PN2P1P/PP1Q2P1/2KR3R b - - 0 19","m":"d4c3 d2d8 a8d8 d1d8","r":540,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"Ys2dl","f":"5rk1/5q1p/p2Q2p1/2pP4/1p6/8/PPP5/1K3rRR w - - 1 29","m":"g1f1 f7f1 h1f1 f8f1","r":584,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Ys4Pz","f":"r5k1/pp3ppp/2p5/2P1Q3/2q2B2/P2b3P/6P1/4R2K b - - 1 28","m":"d3g6 e5e8 a8e8 e1e8","r":580,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"YsYIE","f":"1r4k1/5pbp/p2Q2p1/B3p3/2P1P3/R4P2/6PP/1r1R1q1K w - - 3 27","m":"d1f1 b1f1","r":439,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"YskXN","f":"3r2k1/ppp2pp1/7p/8/2P5/5P2/PP2R1PP/R2r3K w - - 3 23","m":"a1d1 d8d1 e2e1 d1e1","r":446,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YtDYL","f":"r4rk1/pp2nppp/2p5/4q3/8/1P2P1P1/P2Q1PBP/2RR2K1 b - - 1 24","m":"f8d8 d2d8 a8d8 d1d8","r":513,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"YtGtr","f":"8/3k3r/4pQ2/p2p2P1/1p6/8/PPP5/1K6 w - - 5 43","m":"g5g6 h7h1 f6f1 h1f1","r":454,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"YtZib","f":"3r2k1/5pp1/P1Q4p/1p2P3/8/3r4/6PP/q3R2K w - - 0 37","m":"e1a1 d3d1 a1d1 d8d1","r":471,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Yui0R","f":"r2q2k1/5ppp/p2P4/2p5/1pPp4/1P1n3P/RP2rPPQ/3R2K1 w - - 0 24","m":"d1d3 e2e1","r":491,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Yv2h4","f":"r1b3k1/ppp1rppp/8/8/2n1PB2/2P2B2/P4PPP/R2R2K1 b - - 5 16","m":"c7c6 d1d8 e7e8 d8e8","r":416,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"YvM6U","f":"6k1/5ppp/8/1R6/2p5/1P1Pr3/6PP/6K1 b - - 0 31","m":"c4d3 b5b8 e3e8 b8e8","r":526,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YviqR","f":"2r3k1/n4pp1/5n1p/1p2N3/4P3/7N/5PPP/2r1R1K1 w - - 1 29","m":"e1c1 c8c1","r":441,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"YvvzZ","f":"5q1k/6pp/2p5/p1Qp4/1p3nBP/5P2/PPP3P1/2K1R3 b - - 0 27","m":"f8c5 e1e8 c5f8 e8f8","r":520,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YwJau","f":"2r3k1/p1Q2ppp/1n6/1b2p3/PB2P3/7P/2P2PP1/3R3K b - - 0 24","m":"c8c7 d1d8 b5e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YwWWA","f":"1k1r4/ppp5/8/3Q4/1P6/8/P6p/5R1K b - - 0 38","m":"d8d5 f1f8 d5d8 f8d8","r":474,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"YwXhm","f":"1r4k1/6pp/p7/8/8/8/3R1PPP/6K1 w - - 1 32","m":"d2a2 b8b1","r":423,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"Ywsl3","f":"rn2r3/ppp2RPp/1b1k4/3B4/2b5/1P6/PB4PP/RN5K w - - 0 20","m":"b3c4 e8e1 f7f1 e1f1","r":415,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"YxM1x","f":"1r6/p1p3pk/2B3pp/8/2Pb1P1B/4r3/P4RPP/1R5K w - - 0 26","m":"b1b8 e3e1 f2f1 e1f1","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YyN0h","f":"r3r1k1/1p3ppp/p3bq2/3N4/2pP3P/P4Bb1/1PP1Q1P1/3RR1K1 b - - 0 21","m":"e6d5 e2e8 a8e8 e1e8","r":576,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"YyZ58","f":"5rk1/6p1/pp5p/3q4/6B1/P3b3/1P4PP/3R3K w - - 0 36","m":"d1d5 f8f1","r":457,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Yys2e","f":"3N2kr/5p2/2b3pB/p2p2N1/1p5Q/1P6/P5PP/q6K w - - 1 31","m":"h4e1 a1e1","r":504,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"Yyt2d","f":"2r3k1/RN3ppp/4p3/3pn3/8/7P/1r3PP1/R5K1 b - - 1 24","m":"c8c7 a7a8 c7c8 a8c8","r":543,"t":"backRankMate endgame mate mateIn2 short"},{"i":"YzFFo","f":"r3Q1kr/1bp2ppp/p2p4/1p6/8/5P2/PPqP2PP/RNB1R1K1 b - - 1 18","m":"a8e8 e1e8","r":522,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"YzOwb","f":"r3Q1k1/ppb2ppp/2n5/3b1nB1/3P4/8/PPP2PPP/4RRK1 b - - 0 18","m":"a8e8 e1e8","r":432,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"YzYf6","f":"1k1rr3/pp4Qp/2Rp2p1/5p2/2P5/8/3N2PP/1q5K w - - 0 27","m":"d2b1 e8e1","r":539,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Z02kX","f":"r1b2r1k/ppp3p1/3p2p1/8/4P3/1B2P3/PPP3PP/RN1Q1q1K w - - 4 15","m":"d1f1 f8f1","r":483,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Z0KGP","f":"6k1/5ppp/8/B1p5/b7/2r1P3/5PPP/1R4K1 b - - 0 24","m":"c3c2 b1b8 a4e8 b8e8","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Z0XqC","f":"1r6/5p1k/5p1p/p2Bp3/Prb5/1P2R1R1/5PPP/6K1 w - - 0 27","m":"b3c4 b4b1 e3e1 b1e1","r":447,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Z0iUy","f":"3Q2k1/1p3ppb/pbp4p/8/6P1/5N1P/PP2rP2/3R2K1 b - - 0 27","m":"b6d8 d1d8 e2e8 d8e8","r":470,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Z1iGU","f":"3r2k1/5ppp/p3p3/N1p5/8/1PB5/P1P2PPP/2Rr2K1 w - - 1 23","m":"c1d1 d8d1 c3e1 d1e1","r":487,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Z1wWH","f":"4Q3/2q2pkp/4p3/p5Pp/1p2b3/8/PP5r/K1R5 w - - 0 34","m":"c1c7 h2h1 c7c1 h1c1","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Z1z9Y","f":"2r3k1/p4ppp/3R1n2/2B1p3/B3P3/2P2P2/1rP2KPP/8 b - - 4 22","m":"c8c5 d6d8 f6e8 d8e8","r":583,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Z2NvG","f":"r5k1/1p3ppp/1q2p3/1p1p4/1P1P3P/Q5P1/5P2/2R2RK1 b - - 0 26","m":"a8a3 c1c8 b6d8 c8d8","r":427,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Z3BfR","f":"3r2k1/R5pp/4p3/1p2rp2/8/8/PPP2PPP/4R1K1 w - - 0 23","m":"e1e5 d8d1 e5e1 d1e1","r":466,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Z3rh8","f":"r1b1r1k1/pp2Qppp/2p5/8/2P2b2/6P1/PP3PBP/R2R2K1 b - - 0 16","m":"e8e7 d1d8 e7e8 d8e8","r":484,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Z40bB","f":"4r1k1/pp3p1p/6p1/3r1bN1/8/8/PP4PP/K2R1B1R w - - 0 21","m":"d1d5 e8e1 d5d1 e1d1","r":526,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Z41nG","f":"r1b3k1/pp3p2/4rBp1/3p1pQp/5P2/5R2/2P3PP/1R2q2K w - - 4 24","m":"b1e1 e6e1 f3f1 e1f1","r":441,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Z4Fmi","f":"2kr1r2/pp2p2p/2p1b1p1/8/2P5/1P3BQ1/P5PP/3q1R1K w - - 0 24","m":"f1d1 d8d1 f3d1 f8f1","r":566,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Z4O1w","f":"4r1k1/pp1r1ppp/2p5/8/5R2/1nP5/PP4PP/3R3K w - - 0 25","m":"d1d7 e8e1 f4f1 e1f1","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Z4iEj","f":"k1Q4r/pp6/q2r3p/8/3N2P1/P3n3/1P3PP1/2RR2K1 b - - 2 25","m":"h8c8 c1c8","r":504,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Z4rru","f":"4r1r1/pp5R/1np2kp1/3p2N1/3P4/2NB1Pn1/PPP5/1K4R1 w - - 1 26","m":"g1g3 e8e1 c3d1 e1d1","r":524,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Z4vIx","f":"r3Q2k/pp4pp/2p1Q3/8/1P2p3/P3p1P1/1q4rP/2R1R2K b - - 0 25","m":"a8e8 e6e8","r":474,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Z5EgV","f":"7k/p3R1pp/2p5/3p4/3P4/P5PK/7P/1r3Q2 b - - 0 38","m":"b1f1 e7e8 f1f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"Z5Vc9","f":"r4rk1/pp3ppp/2p5/3p4/5P2/4QBPq/PPP4P/4R1K1 b - - 0 24","m":"f8e8 e3e8 a8e8 e1e8","r":435,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Z5sWF","f":"rnb3k1/ppp2rpp/8/8/8/8/PPPP2PP/RNBQ1q1K w - - 2 15","m":"d1f1 f7f1","r":434,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Z6RS0","f":"3rr1k1/p1p4p/1p4p1/5pQ1/8/1N6/PP3PPP/2Rq2K1 w - - 4 25","m":"c1d1 d8d1","r":505,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Z6qqy","f":"2b1k2r/1pppnppp/1p6/2b1P3/4NB2/8/rPPR2PP/2K2B1R w k - 0 13","m":"e4c5 a2a1","r":526,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Z78t5","f":"r1b2rk1/1p4p1/4p2p/p2pN2Q/3Pp3/2P1R3/PP4PP/R4q1K w - - 2 20","m":"a1f1 f8f1","r":522,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Z7B8h","f":"r5k1/5ppp/1p2p3/p3P3/qP1Q4/P7/5PPP/3R2K1 w - - 0 29","m":"d4b6 a4d1","r":540,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"Z7C63","f":"4rQ1k/p2p2pp/1pb1r2q/4P1p1/2Bp3P/8/PP6/1K2RR2 b - - 5 30","m":"e8f8 f1f8","r":580,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Z7Pzi","f":"1nk5/pp3ppp/3rp3/5P2/8/8/PP4PP/R1B4K w - - 0 21","m":"f5e6 d6d1","r":467,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Z7faF","f":"2r3k1/pp2pp1p/3pb1p1/8/3PP3/N4P2/PP1R2PP/R1r4K w - - 1 24","m":"a1c1 c8c1 d2d1 c1d1","r":413,"t":"backRankMate endgame mate mateIn2 short"},{"i":"Z8C1z","f":"3rr1k1/ppq2ppp/2p2b2/3P4/8/1PN4P/P1P1QPP1/3RR1K1 b - - 0 18","m":"f6c3 e2e8 d8e8 e1e8","r":594,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"Z8nAH","f":"r3r1k1/ppp2pbp/3p4/3P4/8/2P3RQ/PP4P1/K3q2R w - - 4 25","m":"h1e1 e8e1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"Z8vpJ","f":"3r2k1/5pp1/7p/p7/8/Q3P3/5PPP/6K1 w - - 4 37","m":"a3a5 d8d1 a5e1 d1e1","r":424,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"Z9Lku","f":"r4r1k/p1p3pp/8/2b1p3/6Q1/8/PPPP2PP/R1B1Rq1K w - - 1 17","m":"e1f1 f8f1","r":579,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"Z9v1D","f":"r4r1k/3R2pp/p1p5/1p2p3/4P3/1Q1B4/1P4PP/5q1K w - - 2 28","m":"d3f1 f8f1","r":591,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ZAOY8","f":"8/4R2p/2pB1kp1/3p3n/8/5P2/1rP3PP/7K w - - 5 29","m":"e7e2 b2b1 e2e1 b1e1","r":507,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZAaA3","f":"8/p3kppp/1p2pn2/2r5/b7/8/1q1NPPPP/1R2KB1R w K - 0 23","m":"b1b2 c5c1","r":495,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ZBIhL","f":"6k1/5ppp/pR3n2/2p5/2P5/P2r1N1P/5PP1/6K1 b - - 0 27","m":"d3a3 b6b8 f6e8 b8e8","r":499,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZBKio","f":"4r2k/pq4pp/1p2Bpn1/8/8/2P2nPK/PP3PQ1/3R4 b - - 0 35","m":"e8e6 d1d8 e6e8 d8e8 g6f8 e8f8","r":512,"t":"backRankMate endgame long mate mateIn3"},{"i":"ZBLPQ","f":"6k1/2p2ppp/b2r4/p7/P2PP3/3n4/1rN2PPP/RR5K b - - 4 30","m":"b2c2 b1b8 a6c8 b8c8 d6d8 c8d8","r":521,"t":"backRankMate endgame long mate mateIn3"},{"i":"ZBRMb","f":"r4Q1k/p5pp/1p6/8/2pq4/2p5/P1P4P/4RR1K b - - 0 30","m":"a8f8 f1f8","r":495,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"ZBSi4","f":"3r2k1/5p1p/6pB/p1p1P3/2b5/2b5/6PP/Q6K w - - 2 35","m":"a1c3 d8d1 c3e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZBctL","f":"6k1/p1q2ppp/1p6/3R4/8/P3P1P1/2Q2PP1/6K1 b - - 0 26","m":"c7c2 d5d8","r":423,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"ZBr3B","f":"8/p4p2/1rk1pB2/4P2p/P1Pn2p1/8/5PPP/3R2K1 w - - 2 28","m":"d1d4 b6b1 d4d1 b1d1","r":511,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZCRU3","f":"2r3k1/5ppp/8/2P5/8/5KP1/RP3P1P/1r6 b - - 0 34","m":"c8c5 a2a8 c5c8 a8c8","r":435,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ZCUKg","f":"6k1/p7/4r3/3pBb2/5n2/1B3P2/PPP2RPP/7K w - - 3 36","m":"e5f4 e6e1 f2f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZCUNb","f":"6k1/5ppp/4p3/2p1P1P1/1pP5/1RPPK1P1/r6P/8 b - - 0 29","m":"b4c3 b3b8","r":497,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"ZDfX2","f":"2r3k1/1bQ2ppp/p2R4/1p2n3/6P1/7P/PPP3B1/1K6 b - - 0 24","m":"c8c7 d6d8","r":487,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ZDzz6","f":"2r3k1/pp3pp1/4p2p/4P3/3r4/2P2R2/PP3PPP/6K1 w - - 0 27","m":"c3d4 c8c1","r":413,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"ZE0eG","f":"3r1k2/1p3pp1/rp2pnp1/2p5/2NP4/P1P2R2/1P2RPPP/6K1 w - - 2 25","m":"d4c5 d8d1 e2e1 d1e1","r":553,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZEFf9","f":"6k1/8/p5p1/4P2p/2r5/8/P2q2PP/3R3K w - - 0 41","m":"d1d2 c4c1 d2d1 c1d1","r":429,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ZEnjJ","f":"3r2k1/pppR1ppp/2n1p3/4P3/4pB2/2P1P3/P1P2PPP/6K1 w - - 1 19","m":"d7c7 d8d1","r":515,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ZEsMk","f":"2q3k1/pQ3ppp/1p6/8/1PP5/P5P1/7P/3R1BK1 b - - 0 32","m":"c8b7 d1d8","r":443,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ZEuAZ","f":"5k2/p3ppb1/1P4pp/3r4/3P4/4P2P/1B3PP1/2R3K1 b - - 0 28","m":"a7b6 c1c8 d5d8 c8d8","r":482,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZEzw3","f":"3Q4/p3rpkp/6p1/3p4/8/P7/4rPPP/Rq4K1 w - - 0 29","m":"a1b1 e2e1 b1e1 e7e1","r":421,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ZF0Fp","f":"2kr4/p4ppp/p3p1b1/2n5/1P6/2p1PB2/4RPPP/2B3K1 w - - 0 22","m":"b4c5 d8d1 e2e1 d1e1","r":595,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"ZF0IA","f":"3r2k1/p4ppp/2p2q2/8/2b2P2/3NQ3/PPP3PP/4R1K1 b - - 2 29","m":"c4d3 e3e8 d8e8 e1e8","r":533,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"ZF9hM","f":"3r3r/pQ2bk1p/2p3p1/8/8/2B2N2/P4PPP/6K1 w - - 0 23","m":"c3h8 d8d1 f3e1 d1e1","r":435,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZFpwz","f":"6k1/R4ppp/p4n2/2p5/1pP5/1P5P/P2r1PPK/8 b - - 3 28","m":"d2a2 a7a8 f6e8 a8e8","r":536,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZFurp","f":"1rb2r1k/1p3Npp/p2R4/3B1n2/8/P5P1/1P3P1P/5RK1 b - - 3 25","m":"f8f7 d6d8 f7f8 d8f8","r":586,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ZG2Ky","f":"2krr3/pp1q2p1/2p1p1p1/2b2nPp/3PQ2P/7B/PPP2P2/1K1RR3 w - - 0 22","m":"d4c5 d7d1 e1d1 d8d1","r":408,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ZGYIR","f":"1b4k1/p4ppp/1r4b1/5p2/2PPn3/1P3B1P/P3R1K1/5R2 b - - 5 26","m":"e4g3 e2e8","r":434,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ZH9LZ","f":"1r1qR2k/p5pp/4Qp2/3p4/8/P1r4P/5PP1/4R1K1 b - - 5 31","m":"d8e8 e6e8 b8e8 e1e8","r":470,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZHKXI","f":"2r4k/1pQ3pp/5pn1/8/8/3R3P/PP3PP1/6K1 b - - 0 33","m":"c8c7 d3d8 g6f8 d8f8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZHV4H","f":"3R4/5kpp/p7/1p1b4/3r4/2Nr4/PP3PPP/R5K1 w - - 5 26","m":"c3d5 d3d1 a1d1 d4d1","r":533,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZHhBS","f":"4r1k1/1RQ2p1p/2p3p1/2Pp1r2/p7/P3P3/6PP/1R3q1K w - - 2 30","m":"b1f1 f5f1","r":490,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"ZHjKA","f":"8/p1p2pkp/5p2/1P6/P3p3/1r2P3/5PPP/2R3K1 w - - 0 26","m":"c1c7 b3b1 c7c1 b1c1","r":567,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ZI8Yf","f":"r5k1/pp1q1ppp/n1p2p2/8/8/3P2PB/PPP1QP1P/2K1R3 b - - 3 16","m":"d7c7 e2e8 a8e8 e1e8","r":585,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"ZIIdw","f":"5r1k/p4Qpp/1p6/2p5/8/8/P1P2PPP/4R1K1 b - - 0 24","m":"f8f7 e1e8 f7f8 e8f8","r":443,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ZIP7z","f":"rnQ2r1k/pp1p2pp/8/5p2/4P3/8/3N1PPP/2R1K2R b K - 0 17","m":"f8c8 c1c8","r":549,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ZIrwz","f":"2rr4/pp2pbkp/6p1/5p2/5Q2/1N3P2/PP4PP/3q1R1K w - - 0 28","m":"f1d1 d8d1","r":508,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ZIzoI","f":"2r3k1/5ppp/1Q6/3p4/3P4/1r2P3/5PPP/6K1 w - - 0 25","m":"b6b3 c8c1 b3d1 c1d1","r":459,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ZJ8wl","f":"Q4rk1/2p2ppp/pp3p2/8/2q5/4R3/2P2PPP/4R1K1 b - - 0 20","m":"f8a8 e3e8 a8e8 e1e8","r":547,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ZJ9qX","f":"2r3k1/5ppp/4p3/2Qp4/8/8/2P2PPP/R5K1 b - - 0 34","m":"c8c5 a1a8 c5c8 a8c8","r":421,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ZJF6u","f":"2r5/p4R2/kp6/3P4/4P3/8/PP4PP/7K w - - 3 42","m":"d5d6 c8c1 f7f1 c1f1","r":450,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ZJcAQ","f":"1k2R1r1/ppp5/2p2q2/3n4/2B4p/2P2P1P/PP4P1/4R1K1 b - - 1 30","m":"g8e8 e1e8 f6d8 e8d8","r":580,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZJyvB","f":"3r2k1/p4ppp/1pQ1p3/8/1PP5/P7/3r1PPP/q4RK1 w - - 0 21","m":"f1a1 d2d1 a1d1 d8d1","r":527,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ZK1jY","f":"2R5/5pBk/p3pPp1/7p/r7/1p1P4/P4PPP/6K1 w - - 1 39","m":"a2b3 a4a1 c8c1 a1c1","r":469,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZKR2f","f":"3r2k1/3Q1ppp/3P4/p1p5/8/P6P/5PP1/1R4K1 b - - 0 29","m":"d8d7 b1b8 d7d8 b8d8","r":544,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ZKXN4","f":"4r2k/R5pp/3p1p2/2pP1P2/P7/3pQ2P/6P1/6K1 b - - 0 34","m":"e8e3 a7a8 e3e8 a8e8","r":593,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ZKXPe","f":"7k/pp1r2p1/1np2rQN/8/4P3/8/PP4PP/5R1K w - - 3 37","m":"f1f6 d7d1 f6f1 d1f1","r":521,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZLH3G","f":"4rQ1k/1p4pp/bqp1r3/p3P1BP/3P4/1PP5/P4RP1/R5K1 b - - 0 30","m":"e8f8 f2f8","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ZLR0s","f":"4r1k1/1npbq2p/1p1p1bp1/3P1pB1/1PP5/3N1P2/6PP/2QB1R1K w - - 6 23","m":"f1e1 e7e1 d3e1 e8e1","r":431,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ZLZCs","f":"8/1p3p2/5kpp/P7/r7/8/5PPP/1R4K1 w - - 0 24","m":"b1b7 a4a1 b7b1 a1b1","r":440,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ZLhaL","f":"r4r1k/pb1n2pB/1p2p3/2pp2BQ/3PP3/2N5/PPP3PP/R4q1K w - - 5 18","m":"a1f1 f8f1","r":454,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ZLie9","f":"r3rQ1k/pp4pp/8/3pP1q1/3Pn3/P1P2R1P/6P1/5RK1 b - - 4 25","m":"e8f8 f3f8 a8f8 f1f8","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZMNWj","f":"2r5/p3qpk1/1p4pp/3P4/8/8/PP3PPP/4R1K1 w - - 0 26","m":"e1e7 c8c1 e7e1 c1e1","r":443,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ZMhaT","f":"6k1/5ppp/2rp4/r7/2p1P2P/1R1n1P2/6P1/2R3K1 b - - 0 31","m":"d3c1 b3b8 c6c8 b8c8","r":416,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZMiUv","f":"r7/3Pkp2/p5pp/4rp2/8/8/R2RNPPP/6K1 w - - 1 37","m":"e2c3 e5e1","r":566,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ZMiZe","f":"3r2k1/pp5p/2p3p1/4N3/2n5/P7/4RPPP/6K1 w - - 0 30","m":"e5c4 d8d1 e2e1 d1e1","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZMxvn","f":"2q4k/4R1pp/1p6/p4Q2/2P5/6P1/P4PKP/8 b - - 0 33","m":"c8f5 e7e8 f5f8 e8f8","r":460,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ZN3BU","f":"1r1Q2k1/p3nppp/4b3/1q6/3R4/P1P1P3/2P2PPP/2K4R b - - 1 17","m":"b8d8 d4d8 b5e8 d8e8","r":405,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"ZN9XP","f":"7k/p5R1/1p2N1pp/1P6/r3r3/8/6PP/4R2K w - - 1 40","m":"e1e4 a4a1 e4e1 a1e1","r":584,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZNUIA","f":"6k1/pp3pp1/6qp/8/3R4/1PP5/P4rPP/1Q5K w - - 2 30","m":"b1g6 f2f1","r":519,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"ZNaMc","f":"k2Q3r/pp4p1/2p1P3/2b5/4qB2/6Pp/P2R3K/5R2 b - - 2 33","m":"h8d8 d2d8","r":450,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ZNclo","f":"rnbq1Q1k/pp4pp/8/4b3/2Bp4/2P5/P5PP/R4RK1 b - - 1 18","m":"d8f8 f1f8","r":487,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ZNmyS","f":"2b3k1/5p1p/2r3p1/1p1pq3/1P6/8/1Q3PPP/6K1 w - - 0 27","m":"b2e5 c6c1 e5e1 c1e1","r":506,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZOUT6","f":"8/6kp/p4pb1/1ppP4/6P1/6P1/PPr5/K2N1R2 w - - 0 33","m":"f1e1 c2c1","r":423,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ZOrn2","f":"3r2k1/p2R1ppp/1p2p3/8/8/8/PP3PPP/2R3K1 b - - 0 23","m":"d8d7 c1c8 d7d8 c8d8","r":424,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ZOuQ1","f":"Q4rk1/5ppp/8/6q1/1P2R3/P7/5PPP/4R1K1 b - - 0 30","m":"f8a8 e4e8 a8e8 e1e8","r":443,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ZQ21u","f":"1rb1k2r/ppN1npb1/6pp/2p5/2P1PP2/8/PP5P/2KR1BNR b - - 2 17","m":"e8f8 d1d8","r":491,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ZQHd7","f":"r3r1k1/p4pp1/1p2q1bp/2p5/2P5/5Q1N/PP1R1PPP/3R2K1 w - - 2 25","m":"h3f4 e6e1 d1e1 e8e1","r":456,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"ZRzix","f":"4r2k/pp4pp/8/7q/2pP1p2/N1P3Q1/PP3R1P/5R1K b - - 0 29","m":"f4g3 f2f8 e8f8 f1f8","r":434,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZSB4r","f":"3r4/ppp2pk1/3r2p1/4p3/8/8/PPP5/1K1qRQ2 w - - 5 34","m":"e1d1 d6d1 f1d1 d8d1","r":405,"t":"backRankMate endgame fork mate mateIn2 queenRookEndgame short"},{"i":"ZTADI","f":"4rrk1/pp3pbp/3p4/5N2/5BQ1/2P5/PP4PP/R3q2K w - - 2 23","m":"a1e1 e8e1","r":546,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ZTKDy","f":"1r4k1/5pbp/3Qb1p1/3pp3/8/4P3/5PPP/Rr4K1 w - - 2 30","m":"a1b1 b8b1","r":545,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ZTdaK","f":"2r3k1/5ppp/8/RpN5/2b1P3/6P1/5PBP/6K1 b - - 0 26","m":"c8c5 a5a8 c5c8 a8c8","r":537,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZTglJ","f":"1k1r3r/Np3pp1/4bn1p/4R3/8/8/PPP2PPP/R1B3K1 w - - 1 17","m":"a7b5 d8d1 e5e1 d1e1","r":579,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ZTkkk","f":"3r3k/2p3pp/1p3p2/p1q5/B6P/R7/1PbQ1PP1/4R1K1 b - - 0 27","m":"d8d2 e1e8 c5f8 e8f8","r":520,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZUEbx","f":"3r1rk1/8/p1p4p/1p3p2/2RN2p1/P3R3/1P3PPP/6K1 w - - 0 26","m":"d4e6 d8d1 e3e1 d1e1","r":450,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZUyws","f":"2r3k1/4bppp/p3p3/1p1pP3/3B4/1P2P3/P3qPPP/4R1K1 w - - 0 23","m":"e1e2 c8c1 e2e1 c1e1","r":594,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ZV1n6","f":"6k1/5ppp/4p3/3R4/1rpP4/7P/1P3PP1/4R1K1 b - - 0 28","m":"e6d5 e1e8","r":520,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"}]