[{"i":"lVggn","f":"4r3/Np3ppp/2p2n2/3r1k2/2R5/2P5/PP3PPP/4R1K1 w - - 5 24","m":"e1e8 d5d1 e8e1 d1e1","r":552,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lWAcl","f":"2rq2k1/5ppp/p7/1p1R4/8/2P2p2/PPN1rQPP/3R2K1 b - - 0 25","m":"e2f2 d5d8 c8d8 d1d8","r":539,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lWJ2r","f":"1r3rk1/4q1pp/4B3/p2pP1b1/1n1P4/4PQ1P/1P3RP1/5RK1 b - - 0 26","m":"g8h8 f3f8 b8f8 f2f8 e7f8 f1f8","r":499,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"lWzDG","f":"r3r1k1/p4ppp/1p3b2/2pR4/2Pp4/PP6/1B1P1PPP/RN4K1 w - - 1 17","m":"d2d3 e8e1","r":555,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"lYO5h","f":"1k1r1r2/p5pp/2Q5/2p5/2P5/3Pb3/PP4PP/R4q1K w - - 0 20","m":"a1f1 f8f1","r":510,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lYc3d","f":"1N4k1/5ppb/p2r4/P2r4/6Pp/3p1P2/3R3P/2R3K1 b - - 2 36","m":"d5a5 c1c8 d6d8 c8d8","r":500,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lYsVb","f":"r6k/6pp/8/2b5/8/1P1K4/P5PP/4R3 b - - 3 36","m":"a8a2 e1e8 c5f8 e8f8","r":524,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lZHzp","f":"8/2r1kp2/6p1/4P1Pp/7P/2r5/PP6/K2q2Q1 w - - 0 32","m":"g1d1 c3c1 d1c1 c7c1","r":534,"t":"backRankMate endgame fork master mate mateIn2 queenRookEndgame short"},{"i":"lZr4k","f":"6k1/r4pbp/2qPp1p1/4P3/1p2B3/4Q3/1PP2PPP/6K1 w - - 0 23","m":"e4c6 a7a1 e3c1 a1c1","r":501,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lZt5s","f":"2r3k1/5ppp/p1Q1pn2/8/8/8/PP3PPP/3R2K1 b - - 0 27","m":"c8c6 d1d8 f6e8 d8e8","r":521,"t":"backRankMate endgame mate mateIn2 short"},{"i":"la6FT","f":"1Q4k1/5ppp/3b1q2/2p5/3p4/3P1N1P/P1r2PP1/4R1K1 b - - 1 20","m":"d6b8 e1e8","r":424,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"laCIH","f":"6k1/2R2pp1/4p2p/5b2/5PP1/7P/2p5/6K1 b - - 0 37","m":"f5h7 c7c8","r":519,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"laNEW","f":"r3r2k/pp1nq1bp/2p1Bp2/6p1/8/5QB1/PPP2PPP/R3R1K1 w - - 1 19","m":"e6d7 e7e1 a1e1 e8e1","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"laTEp","f":"3r2k1/1b3ppp/1Q2p3/3R4/1P1b4/4BP2/r5PP/3R2K1 b - - 0 28","m":"d4b6 d5d8 b6d8 d1d8","r":509,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"lahyo","f":"4r3/1pk2ppp/p4n2/3p1b2/1b1P4/8/PP3PPP/R1BQ2K1 w - - 0 18","m":"d1b3 e8e1","r":461,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"laz8G","f":"2r5/1b2kp2/p2n1p2/4p3/6Q1/5PP1/PP2B2P/K1q4R w - - 5 26","m":"h1c1 c8c1","r":427,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lb2tW","f":"2k2b1r/ppp2Npp/2n2n2/8/6bQ/8/PPPB2PP/RN1rRq1K w - - 5 18","m":"e1f1 d1f1","r":556,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"lb7uD","f":"r7/5pkp/4p1p1/8/4P3/1r6/P3RPPP/6K1 w - - 0 25","m":"a2b3 a8a1 e2e1 a1e1","r":524,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"lbR4N","f":"2rr2k1/p1p2pp1/7p/4P3/2R5/b4N2/2P2PPP/R5K1 w - - 2 26","m":"a1a3 d8d1 f3e1 d1e1","r":406,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lbTzl","f":"6k1/4bppp/4p3/8/4P3/1p1K1P2/p5PP/2R5 b - - 1 38","m":"e7f6 c1c8 f6d8 c8d8","r":577,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lbUZK","f":"2r3k1/1p3pp1/1p2p3/4N3/1P2pP2/r7/3R1PPP/R5K1 w - - 0 27","m":"a1a3 c8c1 d2d1 c1d1","r":565,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lbi66","f":"r3Q2k/p4ppp/3q4/3b4/2pP2n1/2P3P1/PP5P/R3R1K1 b - - 1 25","m":"a8e8 e1e8 d6f8 e8f8","r":456,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lbl8r","f":"r3r1k1/1Bp2ppp/1p3n2/8/5B2/2P5/PP4PP/R2b3K w - - 0 20","m":"b7a8 e8e1","r":495,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lblNe","f":"Q5k1/2B2ppp/4p3/7q/8/P1N2bP1/1PP4P/3R2K1 b - - 0 29","m":"f3a8 d1d8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lbuOr","f":"4rrk1/p4p2/5q1p/2R5/7p/8/PPP3PP/5R1K w - - 0 29","m":"f1f6 e8e1 f6f1 e1f1","r":449,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"lcG0b","f":"3r4/4kp2/PQp1p2p/6p1/8/8/2P2PPP/6K1 w - - 1 33","m":"a6a7 d8d1","r":472,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"lcJD0","f":"6k1/3p2p1/1R2p2p/8/r7/8/2P2PPP/6K1 w - - 0 28","m":"b6d6 a4a1 d6d1 a1d1","r":464,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"lcYNZ","f":"6k1/5ppp/4b1q1/4PB2/r5P1/2B5/7P/3R2K1 b - - 0 35","m":"e6f5 d1d8","r":537,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lcdoa","f":"1k1Q1r2/ppp5/5r1n/2q4P/2P1p3/1P3N1P/P5P1/3R1R1K b - - 4 27","m":"f8d8 d1d8","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ldZfA","f":"6k1/5ppp/p4n2/1p2r3/4N1PP/5P2/PP2K3/2R5 b - - 5 31","m":"f6e4 c1c8 e5e8 c8e8","r":545,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ldnfm","f":"2r3k1/pp3p1p/5p2/3p4/P2N4/1br5/R4PPP/2R3K1 w - - 0 24","m":"d4b3 c3c1 b3c1 c8c1","r":522,"t":"backRankMate endgame mate mateIn2 short"},{"i":"leEUm","f":"3r2k1/pp3pp1/4p3/1b2P1Q1/1P1q4/P7/3B1PPP/2R3K1 w - - 0 25","m":"d2e3 d4d1 c1d1 d8d1","r":567,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"lePnE","f":"r7/1R6/3pk3/3p4/1n6/4B3/1P3PPP/6K1 w - - 2 45","m":"b7b4 a8a1 e3c1 a1c1","r":555,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lfYdN","f":"7k/5ppp/p2p4/3BbP2/7r/8/P1r5/1R4K1 b - - 3 40","m":"h4h2 b1b8 c2c8 b8c8","r":596,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lh1Zp","f":"2rr4/5ppp/p3p3/1p2k3/1P6/P3P3/5PPP/2RR2K1 w - - 2 23","m":"d1d8 c8c1 d8d1 c1d1","r":569,"t":"backRankMate endgame hangingPiece mate mateIn2 rookEndgame short"},{"i":"lh9AY","f":"5r1k/p4Qpp/8/5p2/3Pn3/3qP2P/2R2PP1/2R3K1 b - - 0 38","m":"f8f7 c2c8 f7f8 c8f8","r":573,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lhM3X","f":"8/r4pkp/2R1p3/3p4/3P4/4P3/5PPP/6K1 w - - 3 36","m":"c6c8 a7a1 c8c1 a1c1","r":476,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"lhOEB","f":"2r1r3/5pkp/3Qp1p1/3p4/3P4/3b4/PP3PPP/3R2K1 w - - 3 26","m":"d1d3 c8c1 d3d1 c1d1","r":574,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"lhsRP","f":"5k2/2p2p1R/3p1B2/p3p3/q2PP3/N1P5/b4PPP/Rr4K1 w - - 4 23","m":"a3b1 a4d1","r":428,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"li5K4","f":"4r2k/6pp/8/p3Qp2/8/P6P/2r2PP1/3R2K1 b - - 0 31","m":"e8e5 d1d8 e5e8 d8e8","r":444,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"li8if","f":"2rQ2k1/1p3ppp/p3pn2/8/4p3/2P5/qP2BPPP/2KR3R b - - 1 17","m":"c8d8 d1d8 f6e8 d8e8","r":531,"t":"backRankMate endgame mate mateIn2 short"},{"i":"liJKE","f":"3Q1r1k/pp4pp/2p3p1/8/2r5/4RP2/PP4PP/4R1K1 b - - 0 30","m":"f8d8 e3e8 d8e8 e1e8","r":512,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"liOfT","f":"5r2/pB1bk1b1/4p2p/4P3/4Q1p1/2P3P1/Pq3rPP/1R2R2K w - - 4 32","m":"b1b2 f2f1 e1f1 f8f1","r":579,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"liPZU","f":"8/1kpQp3/1p2p1p1/3br2p/8/b4P2/6PP/R6K w - - 0 35","m":"a1a3 e5e1","r":473,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"liUhK","f":"4r2k/pQp3p1/1b5p/8/3p4/1P1P1N2/P1P1qPPP/R5K1 w - - 1 22","m":"a1e1 e2e1 f3e1 e8e1","r":432,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lj2gk","f":"r1b1r1k1/5ppp/ppn5/2p1q3/2P5/P2P2R1/1P2B1PP/R1BQ3K w - - 2 19","m":"e2f3 e5e1 d1e1 e8e1","r":549,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ljBkq","f":"2r1Q1k1/2q2ppp/r4b2/p2P4/3N4/2P4P/P4PP1/R3R1K1 b - - 1 27","m":"c8e8 e1e8","r":433,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ljV38","f":"3r4/1b4bk/p1p2p1p/4p1p1/3rn1P1/P1N3BP/BPP2R2/1K3R2 w - - 0 28","m":"c3e4 d4d1 f1d1 d8d1","r":585,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"llhKH","f":"4rbk1/ppp2pBp/2p2Pp1/6N1/P7/3r4/1P4PP/4R2K w - - 0 27","m":"e1e8 d3d1 e8e1 d1e1","r":413,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lmFCb","f":"r4rk1/pp3ppp/1np2pb1/8/2PP1q2/5N1P/PPB1QPP1/R3R1K1 b - - 1 16","m":"f8e8 e2e8 a8e8 e1e8","r":597,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"lmUjr","f":"4r1k1/4qppp/2p3P1/p6P/Pp1p1N2/8/BPP2Q2/1K2r1R1 w - - 1 28","m":"g1e1 e7e1 f2e1 e8e1","r":528,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lmXse","f":"4r1k1/p1p2ppp/b1p5/4r3/8/2N5/PPP2PPP/R3RK2 w - - 4 18","m":"f1g1 e5e1 a1e1 e8e1","r":575,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lmjt5","f":"2r3k1/3r1ppp/R3p3/ppR5/3P4/1P2P3/P4PPP/6K1 b - - 0 23","m":"c8c5 a6a8 c5c8 a8c8 d7d8 c8d8","r":444,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"lnJET","f":"2r2Q1k/1p4pp/bP6/P1p1P3/q2p3b/3P4/3B2PP/4RRK1 b - - 2 32","m":"c8f8 f1f8","r":433,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"lnMVd","f":"2rR1k2/1p2npp1/pq2p2p/4P2P/8/3Q1N2/P4PP1/3R2K1 b - - 6 33","m":"c8d8 d3d8 b6d8 d1d8","r":561,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lo61y","f":"5rk1/R4p1p/6p1/8/2P5/8/Pr4PP/3R3K w - - 0 30","m":"d1d7 b2b1 d7d1 b1d1","r":546,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"loD6T","f":"2r3k1/5p2/p5pp/8/8/1P1q1P2/P5PP/3R3K w - - 0 31","m":"d1d3 c8c1 d3d1 c1d1","r":532,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"lodcT","f":"4r1k1/p4ppp/1p4N1/2p5/8/6Q1/P3rPPP/R1q3K1 w - - 0 28","m":"a1c1 e2e1 c1e1 e8e1","r":564,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lojau","f":"5rk1/pR4pp/2p5/3pp3/8/2PQP1P1/6PP/5q1K w - - 3 26","m":"d3f1 f8f1","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lp75k","f":"r3r2k/ppp3pp/6b1/3P1p2/2Bq1P2/7Q/P5PP/3R3K w - - 0 25","m":"d1d4 e8e1 c4f1 e1f1","r":422,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lpLDV","f":"2r3k1/5pp1/p3p2p/2q5/4Q3/1P2P3/5PPP/5RK1 w - - 1 27","m":"f1a1 c5c1 a1c1 c8c1","r":555,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"lq4pT","f":"r5k1/pp3ppp/2p1pq2/5R2/3PQ3/2P4P/PP4P1/4R1K1 b - - 0 19","m":"e6f5 e4e8 a8e8 e1e8","r":599,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"lqKb4","f":"1r4k1/p5pp/8/3Q1p2/6r1/6Pq/PP3P2/R2R2K1 b - - 3 24","m":"g8h8 d5d8 b8d8 d1d8","r":577,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"lqgrA","f":"4Q2k/2Br2pp/5pq1/pp6/8/8/Pb3PPP/4R1K1 b - - 1 29","m":"g6e8 e1e8","r":426,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lqiXp","f":"7k/pp4pp/8/4PR2/3rp3/1B6/P1q3PP/5RK1 b - - 1 24","m":"c2c5 f5f8 c5f8 f1f8","r":559,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lqpD1","f":"5rk1/ppp3pp/2n1p1p1/4P3/3Pp3/2P1P3/PPQB2PP/4Rq1K w - - 9 19","m":"e1f1 f8f1","r":414,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lr7sp","f":"3r2k1/5ppp/p2r1b2/Pp3q2/5P2/R2pQ2P/1P4P1/2B1R2K b - - 1 29","m":"b5b4 e3e8 d8e8 e1e8","r":533,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"lrA51","f":"1Qb3k1/6pp/5p2/3p4/8/5N2/5PPP/rRq3K1 w - - 6 35","m":"b1c1 a1c1 f3e1 c1e1","r":571,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lrMrA","f":"6k1/5ppp/P4n2/4R3/2P5/2Nr4/2R2PPP/1r4K1 w - - 1 27","m":"c3b1 d3d1 e5e1 d1e1","r":571,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"lrfWV","f":"4r1k1/5ppp/8/1p1P4/8/1B6/3q1PPP/1KR5 b - - 1 26","m":"e8e2 c1c8 e2e8 c8e8","r":411,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lsZpj","f":"6k1/p3Rppp/4p3/1rp5/8/6P1/PP2PP1P/5bK1 b - - 0 21","m":"f1e2 e7e8","r":443,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lspF8","f":"2r3kr/5ppp/q7/B1Nn4/3p4/8/P1P2PPP/4RRK1 b - - 0 22","m":"c8c5 e1e8","r":407,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"lsrDB","f":"3r2k1/1p2nppp/1p6/rN1p1b2/2P2P2/8/PP2B1PP/3R1RK1 b - - 0 18","m":"d5c4 d1d8","r":472,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"lsuiL","f":"7k/ppp2rpp/2b5/6B1/3r4/1N5P/PP3PP1/4R1K1 b - - 5 25","m":"d4d7 e1e8 f7f8 e8f8","r":442,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lsumH","f":"r1br3k/p5pp/1p6/n3p2B/8/2P1PQ2/PP2NPPP/R2q1K1R w - - 2 18","m":"a1d1 d8d1","r":432,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ltAwA","f":"3r3k/1pq3pp/p4p2/3Q4/2P1Rp1P/8/PP3PP1/6K1 b - - 0 26","m":"d8d5 e4e8","r":418,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"ltCBH","f":"r3r2k/1pp4p/p4p1Q/8/8/P7/2P1R1PP/4q2K w - - 0 29","m":"e2e1 e8e1","r":484,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"ltU8P","f":"6r1/1b4k1/p1pPpq1p/8/Rp3p2/1P6/2Q2PPP/R5K1 w - - 0 28","m":"a4b4 f6a1 c2b1 a1b1","r":499,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"ltXoe","f":"6k1/p2r1ppp/1P2b3/1P6/8/2K5/7P/R7 b - - 0 33","m":"a7b6 a1a8 d7d8 a8d8","r":598,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ltlU4","f":"r4rk1/pp4p1/4R2p/3p4/8/2b5/PPP3PP/5R1K w - - 0 24","m":"b2c3 f8f1","r":500,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove rookEndgame"},{"i":"ltxpd","f":"3rQ2k/p5pp/2p2p2/2b2P2/8/1Bq5/P1P3PP/4R2K b - - 1 32","m":"d8e8 e1e8 c5f8 e8f8","r":580,"t":"backRankMate endgame mate mateIn2 short"},{"i":"luFsN","f":"r3r1k1/p4ppp/2p2q2/8/4p3/2P2P2/PP2Q1PP/R3R1K1 b - - 0 18","m":"e4f3 e2e8 a8e8 e1e8","r":494,"t":"backRankMate endgame mate mateIn2 short"},{"i":"luXFW","f":"6k1/ppp2ppp/2p5/8/5Bb1/4Q3/PPP2PPP/3rq1K1 w - - 0 18","m":"e3e1 d1e1","r":448,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"luxrI","f":"6k1/3r1ppp/3P4/1R6/1Pp5/2b5/6PP/7K b - - 0 31","m":"d7d6 b5b8 d6d8 b8d8","r":478,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lv6nZ","f":"4rQ1k/6pp/8/1P6/2P5/4P2P/1q1B2P1/5RK1 b - - 2 32","m":"e8f8 f1f8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lvbi6","f":"4Q2k/pp4pp/2b5/8/4P3/8/Pq4PP/4RRK1 b - - 0 21","m":"c6e8 f1f8","r":428,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lvmsw","f":"5rk1/p2rRppp/2p5/2p5/3p2bN/8/PPP2PPP/4R1K1 b - - 3 19","m":"f8d8 e7e8 d8e8 e1e8","r":565,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lwbfZ","f":"1r4k1/5pbp/2P1p1p1/pPq5/4R3/1Q2P3/4NPPP/6K1 w - - 2 27","m":"e2d4 c5c1 b3d1 c1d1","r":511,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lwfdS","f":"6k1/1p3ppp/p3p3/4P3/3r1P2/1Pn3P1/P6P/2R3K1 b - - 2 26","m":"c3a2 c1c8 d4d8 c8d8","r":414,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lwmph","f":"3rr1k1/p1p2ppp/Q7/3q4/2p5/4B3/PP2NPPP/R4RK1 w - - 4 16","m":"f1d1 d5d1 a1d1 d8d1","r":580,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"lwpF0","f":"3r3k/4R1pp/4n2q/3p4/3P4/5pP1/P4PbP/R3Q1K1 b - - 11 31","m":"e6g5 e7e8 d8e8 e1e8","r":543,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"lwxZV","f":"7k/pB4pp/3b2r1/2B1p3/2p1P3/7r/PPP1KP2/3R4 b - - 1 33","m":"d6c5 d1d8 c5f8 d8f8","r":516,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lxF0Y","f":"2q3k1/p5pp/1p3p2/3p4/1P1P1P2/P7/3Qr1PP/7K w - - 0 28","m":"d2e2 c8c1 e2d1 c1d1","r":584,"t":"backRankMate endgame mate mateIn2 queenEndgame short"},{"i":"lxI9t","f":"rn4k1/1Q2qppp/2p1p3/4P3/8/6P1/4PPBP/2RR2K1 b - - 0 20","m":"e7b7 d1d8","r":498,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lxNkr","f":"2rr1R1k/pp4pp/8/n2BP3/2pB4/P1P2Q2/3q2PP/5RK1 b - - 1 25","m":"d8f8 f3f8 c8f8 f1f8","r":488,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"lxh2N","f":"6k1/ppr2ppp/1q1n4/3p4/3B2N1/1P5P/P3QPP1/4R1K1 b - - 0 23","m":"b6d4 e2e8 d6e8 e1e8","r":548,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"ly0LT","f":"3r1Q1k/6pp/p7/1p6/1P1qn3/P7/6PP/2B2R1K b - - 2 28","m":"d8f8 f1f8","r":443,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lyB88","f":"4rQ1k/6pp/8/4q3/8/2Pr4/PP2p1PP/4RR1K b - - 2 23","m":"e8f8 f1f8","r":410,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"lys6L","f":"r1bk1Q1r/1pppn2p/p1q3p1/8/2BbP2P/2N5/PPP5/2KR1R2 b - - 1 18","m":"h8f8 f1f8","r":448,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"lz0JG","f":"1r6/8/k7/2R1p3/8/P7/2P2PPP/6K1 w - - 1 38","m":"c5e5 b8b1 e5e1 b1e1","r":457,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"lzJF5","f":"3r3k/6pp/p2N1p2/1p2n3/5P2/P3P3/4K1PP/2R5 b - - 0 31","m":"d8d6 c1c8 d6d8 c8d8","r":452,"t":"backRankMate endgame mate mateIn2 short"},{"i":"lzQJh","f":"r1b2r1k/pp4pp/2pn4/8/8/1QR5/PP4PP/4Rq1K w - - 2 20","m":"e1f1 f8f1","r":455,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"lzXQT","f":"7k/p5pp/1p3p2/3pB3/2RP3P/2Pq1P1K/6r1/8 b - - 1 34","m":"d3e2 c4c8","r":486,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"lzsHH","f":"r1bq1r1k/1p4pp/p1p5/3pP3/N2Pp3/1Q2P2P/PP4P1/R4RK1 b - - 0 18","m":"d8g5 f1f8","r":574,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"lzzG7","f":"6k1/4nppp/4p3/1R6/3P4/7P/5PPK/2r5 b - - 2 36","m":"e7d5 b5b8 c1c8 b8c8","r":573,"t":"backRankMate endgame mate mateIn2 short"},{"i":"m0MVf","f":"2Q5/1p3k2/6R1/3p1p2/4p3/1Pq5/5PPP/rR4K1 w - - 2 33","m":"c8c3 a1b1 c3c1 b1c1","r":595,"t":"backRankMate endgame hangingPiece mate mateIn2 queenRookEndgame short"},{"i":"m0co9","f":"r5k1/R4ppp/4p3/3pn3/2r5/4B2P/5PPK/1R6 b - - 0 30","m":"a8a7 b1b8 c4c8 b8c8","r":567,"t":"backRankMate endgame mate mateIn2 short"},{"i":"m12n2","f":"2k2r2/1p1n4/p7/2p5/8/7Q/PPP3PP/3R1q1K w - - 2 26","m":"d1f1 f8f1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"m1Tbv","f":"r1b1Q1kr/ppNp1ppp/5n2/5q2/2N5/8/P1P2PPP/R3R1K1 b - - 2 18","m":"f6e8 e1e8","r":521,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"m21tb","f":"2r2k1r/1p2ppb1/6pp/p7/6P1/Pq2BP2/1N1Q3P/1K1R3R b - - 1 22","m":"b3a3 d2d8 c8d8 d1d8","r":541,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"m23Jq","f":"3r2k1/6pp/2R1p3/8/2p1p3/2B5/5PPP/6K1 w - - 4 30","m":"c6c7 d8d1 c3e1 d1e1","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"m2FDF","f":"2rr2k1/p4pp1/2p4p/8/8/5NB1/P1q2PPP/2R3K1 w - - 0 29","m":"c1c2 d8d1 f3e1 d1e1","r":465,"t":"backRankMate endgame mate mateIn2 short"},{"i":"m2MPb","f":"r4r1k/ppp1N1pp/8/3p4/8/1BNP4/PPP3PP/R2bb2K w - - 1 18","m":"a1d1 f8f1","r":514,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"m2NC9","f":"2r2rk1/bpp3p1/p1np1q1p/4p3/3pPP2/PN1P2Q1/1PPB2PP/R4R1K w - - 0 18","m":"f4e5 f6f1 a1f1 f8f1","r":575,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"m2jst","f":"1kr5/1p4pp/p4p2/3R4/N3RN2/8/PP3PPP/6K1 w - - 1 26","m":"a4b6 c8c1 d5d1 c1d1 e4e1 d1e1","r":539,"t":"backRankMate endgame long mate mateIn3"},{"i":"m2wuq","f":"8/pp5p/2kr4/2p5/8/2P5/PP3qPP/5R1K w - - 0 33","m":"f1f2 d6d1 f2f1 d1f1","r":517,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"m2xsS","f":"rn3rk1/pp2Qppp/2p2n2/8/3q1p2/5B2/PPPP2PP/R1B1R2K b - - 0 14","m":"f8e8 e7e8 f6e8 e1e8","r":505,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"m30yH","f":"r2r3k/pp4pp/8/8/4BP2/7Q/PPPq2PP/2K4R w - - 1 24","m":"c1b1 d2d1 h1d1 d8d1","r":454,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"m3jRq","f":"5r2/R6p/2pk4/3Pp3/4P3/4b1NR/Pn4PP/5r1K w - - 5 35","m":"g3f1 f8f1","r":518,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"m3q3c","f":"r3nQ1k/1p2b1pp/p7/2p1p3/3P2P1/1P1Pq3/PBP3KP/R4R2 b - - 2 21","m":"e7f8 f1f8","r":478,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"m3rcK","f":"6k1/2q2ppp/p3p3/1p4Pb/4Q3/P3N3/1PP5/1K6 b - - 2 28","m":"h5g6 e4a8 c7b8 a8b8","r":599,"t":"backRankMate endgame mate mateIn2 short"},{"i":"m4590","f":"r5k1/5ppp/8/1b6/3R4/4P3/3p2PP/5BK1 b - - 1 34","m":"a8a1 d4d8 b5e8 d8e8","r":550,"t":"backRankMate endgame mate mateIn2 short"},{"i":"m4DBO","f":"r4r1k/p5pp/2p1Q3/3p2N1/8/1Nn5/P5PP/R4q1K w - - 2 21","m":"a1f1 f8f1","r":573,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"m55aA","f":"4r1k1/p2q4/8/3p4/1bPN1R1p/1P6/PBQ2nPP/7K w - - 1 29","m":"f4f2 e8e1 f2f1 e1f1","r":582,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"m5GRy","f":"5rk1/pp4pp/8/4np2/8/P2r4/1PR2PPP/4R1K1 w - - 0 22","m":"e1e5 d3d1 e5e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"m5Xy3","f":"2kr3r/ppb3pp/8/4p1N1/1Pq1R3/8/P4PPP/R1BQ2K1 w - - 0 19","m":"e4c4 d8d1","r":402,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"m5vn1","f":"r1b1r1k1/ppp2ppp/2pn4/4q3/4N3/3P1Q2/PPP2PPP/R3R1K1 w - - 0 14","m":"e4d6 e5e1 a1e1 e8e1","r":437,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"m5zki","f":"1r3rk1/4b1p1/3p3p/p2Rp3/P7/2R5/Q2N2PP/5q1K w - - 2 32","m":"d2f1 f8f1","r":561,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"m6UuT","f":"6k1/3q1ppp/p1r3r1/Qp1p4/2pP4/2R1P2P/PP3PP1/2R4K b - - 7 28","m":"d7f5 a5d8","r":571,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"m6XpO","f":"4n1k1/3npp1p/3p2p1/2pP4/q3P3/2P1B3/4QPPP/1N4K1 w - - 0 19","m":"e2b2 a4d1","r":544,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"m7WeV","f":"Q4rk1/p2R1ppp/1p2p3/4P3/n1q5/P7/5PPP/3R2K1 b - - 0 21","m":"f8a8 d7d8 a8d8 d1d8","r":500,"t":"backRankMate endgame mate mateIn2 short"},{"i":"m7aiq","f":"4r1k1/2p1qppp/pp1P4/2P5/3Q4/P7/5PPP/2RRr1K1 w - - 1 27","m":"d1e1 e7e1 c1e1 e8e1","r":556,"t":"backRankMate endgame mate mateIn2 short"},{"i":"m85Ed","f":"4r2k/2p1q1pp/p1p5/3p2P1/5Qp1/2P5/PP4PP/5R1K b - - 2 27","m":"e7e2 f4f8 e8f8 f1f8","r":452,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"m8QUl","f":"6k1/5ppp/p1r1p3/RP6/3p4/P6P/5PP1/6K1 b - - 0 28","m":"a6b5 a5a8 c6c8 a8c8","r":520,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"m8ij6","f":"3Q2k1/p4ppp/8/2pr4/8/4r2P/PP4q1/2KR3R b - - 0 28","m":"d5d8 d1d8 e3e8 d8e8","r":450,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"m9E5B","f":"3r2k1/pp4pp/1np2b2/8/8/2N2B2/PP2RPPP/6K1 w - - 5 26","m":"c3e4 d8d1 e2e1 d1e1","r":580,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mAGlQ","f":"3r4/1pp2p1p/p1p5/4p3/4Pk2/P1P5/1P3PPP/4R1K1 w - - 0 22","m":"e1e2 d8d1 e2e1 d1e1","r":425,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mBEIv","f":"5rk1/3Qb1pp/8/p1pPp3/Pp2P3/3N4/1P4PP/2q4K w - - 0 30","m":"d3c1 f8f1","r":509,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"mBUGL","f":"2rR3k/pp4pp/q5n1/5p2/4p3/1P2P2P/P4PPB/3R2K1 b - - 1 30","m":"c8d8 d1d8 g6f8 d8f8","r":420,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mBo9R","f":"4r1k1/pp3ppp/5b2/3p4/b7/BPP5/3Q1PPP/RN2q1K1 w - - 1 21","m":"d2e1 e8e1","r":522,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mBxql","f":"6k1/3r2pp/N1pr1p2/4p3/2P5/1P2B3/P4PPP/R5K1 w - - 1 24","m":"a6c5 d6d1 a1d1 d7d1","r":504,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mCNqb","f":"2Q5/p4p1p/1p6/1k1q4/8/R7/1PP3PP/7K w - - 6 36","m":"c8c3 d5d1 c3e1 d1e1","r":596,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mD841","f":"r5k1/5ppp/8/3R4/1P6/2r1B3/R4PPP/6K1 b - - 0 32","m":"a8a2 d5d8","r":548,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"mDDqs","f":"3rR3/3P1kpp/bpr5/p7/8/8/1P1R1PPP/6K1 w - - 2 33","m":"e8d8 c6c1 d2d1 c1d1","r":452,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mEGaq","f":"5r1k/5Qpp/8/4P3/2R1p3/4P1P1/PP2qP1P/5RK1 b - - 0 30","m":"f8f7 c4c8 f7f8 c8f8","r":481,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"mEWoj","f":"4k3/1R3R1p/5p2/r5p1/5N2/5N2/5PPP/6K1 w - - 3 30","m":"f7h7 a5a1 b7b1 a1b1 f3e1 b1e1","r":503,"t":"backRankMate endgame long mate mateIn3"},{"i":"mErJ4","f":"2r3k1/pp3ppp/4p3/3p1qPP/7R/2R2PQ1/P5K1/8 b - - 0 27","m":"c8c3 g3b8 c3c8 b8c8","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mFeor","f":"4r3/5R1p/1p4pk/p7/2Bb4/1P1P4/P5PP/7K w - - 4 36","m":"f7f4 e8e1 f4f1 e1f1","r":471,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mFrhB","f":"3r2k1/1p3pp1/p1n4p/4p3/8/P3PN2/1Pq2PPP/2R3K1 w - - 0 24","m":"c1c2 d8d1 f3e1 d1e1","r":467,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mFtJp","f":"7k/p3Qrpp/1p3p2/8/8/8/PP3PPP/3R2K1 b - - 0 31","m":"f7e7 d1d8 e7e8 d8e8","r":552,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mGUNk","f":"5rk1/1p3bpp/2p5/p1Q2N2/P1P3q1/1P4R1/5PPP/R2r2K1 w - - 5 23","m":"a1d1 g4d1","r":482,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mGagW","f":"1k5Q/ppp2p2/2q3n1/7p/1P2rPp1/P3P3/2P2P1P/2KR1R2 b - - 0 23","m":"g6h8 d1d8","r":448,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"mGwNr","f":"4r1k1/p4ppp/4qn2/3p4/2pP1Q2/2B5/1PP2PPP/R5K1 w - - 2 22","m":"a1a7 e6e1 c3e1 e8e1","r":571,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"mHBs3","f":"6k1/5ppp/4p3/3p4/3r4/7P/r4PP1/1RR2K2 b - - 3 42","m":"d4d2 c1c8","r":463,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"mHX64","f":"4R3/6pk/2r3np/8/5p2/6BP/5PP1/6K1 w - - 0 39","m":"g3h2 c6c1 e8e1 c1e1","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mHiPt","f":"rn2r1k1/pp3ppp/8/2p2b2/8/8/PP2QPPP/2KR3R b - - 0 17","m":"e8e2 d1d8 e2e8 d8e8","r":447,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mHsbP","f":"6k1/pp2rppp/1n6/8/P3P3/2r2PP1/2B3P1/3R1RK1 b - - 0 26","m":"c3c2 d1d8 e7e8 d8e8","r":411,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mHuJH","f":"1rQ3k1/5ppp/4pn2/3b4/3r1q2/P4P2/6PP/2R2RK1 b - - 0 29","m":"b8c8 c1c8 f6e8 c8e8","r":496,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mHw2e","f":"2rk4/pp4pp/4Q3/3pP3/P7/8/1P3PPP/n2R2K1 w - - 1 26","m":"d1d4 c8c1 d4d1 c1d1","r":427,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mI17H","f":"3r2k1/5ppp/p1q1p3/1p6/8/5Q2/PP1r1PPP/2R3K1 w - - 0 25","m":"f3c6 d2d1 c1d1 d8d1","r":515,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"mI6Bu","f":"6k1/5ppp/2p1p3/1pPn4/4P3/1P4P1/3R1P1P/r4BK1 b - - 0 29","m":"d5f6 d2d8 f6e8 d8e8","r":488,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mI7bp","f":"6k1/pp1r1ppp/2P1p3/1R6/3b4/P4P2/6PP/5K2 b - - 0 31","m":"b7c6 b5b8 d7d8 b8d8","r":557,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mIC5H","f":"4rr1k/p1p3p1/bpPp4/3P3N/1P6/2Q5/P5PP/2R2q1K w - - 1 33","m":"c1f1 f8f1","r":549,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"mIHNS","f":"3r3k/7p/p7/3rp3/5p2/P6R/1P3PPP/3R2K1 w - - 0 34","m":"d1c1 d5d1 c1d1 d8d1","r":599,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mJaaa","f":"3r2k1/2p2ppp/p1p5/4P3/8/2P5/PRPr1PPP/5RK1 w - - 5 18","m":"f1b1 d2d1 b1d1 d8d1","r":495,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mJacK","f":"4k3/pp1bbrB1/4p2Q/3p4/8/4P3/6PP/2R2q1K w - - 1 27","m":"c1f1 f7f1","r":450,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"mKAft","f":"1rb1r2k/1p4pp/p7/P1pP4/4Q3/3n4/BP4PP/3R1R1K b - - 0 25","m":"e8e4 f1f8","r":567,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mKD09","f":"nk5r/ppp4p/8/P4B2/4R3/2P3KP/5r2/4R3 b - - 1 35","m":"f2f5 e4e8 h8e8 e1e8","r":595,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mKIQT","f":"2rQ2k1/5ppp/p4n2/n4q2/N1p1b3/P3P2P/4BPP1/3R2K1 b - - 1 26","m":"c8d8 d1d8 f6e8 d8e8","r":442,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mKcHx","f":"2r2r2/5pkp/6p1/p2qP3/8/Q7/1P3PPP/3R2K1 w - - 0 30","m":"d1d5 c8c1 d5d1 c1d1","r":515,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"mKsIR","f":"8/1p1q1k2/p5p1/5p1p/8/PPR5/6PP/3rQ2K w - - 1 55","m":"e1d1 d7d1","r":425,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"mKwtT","f":"2b1rrk1/ppp2ppp/3b1n2/3PN3/5P2/2N5/PPP3PP/R1B1R2K w - - 8 16","m":"e5c4 e8e1","r":562,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"mKyQw","f":"2r3k1/1p1R1ppp/4p3/7q/8/8/PPPn4/K2R4 b - - 2 28","m":"d2c4 d7d8 c8d8 d1d8","r":535,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mL8rj","f":"4r1k1/1p3ppp/1q3n2/p7/P2prN2/1P3Q2/2P2PPP/3R1RK1 w - - 0 25","m":"f1e1 e4e1 d1e1 e8e1","r":596,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mLHc0","f":"2rR2k1/1p3ppp/p3b3/4Pp2/2r5/P1N5/1PP3PP/2KR4 b - - 2 21","m":"c8d8 d1d8","r":504,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"mLJRu","f":"6k1/1R4pp/1p3p2/3p4/1P1P4/rb3N2/5PPP/6K1 w - - 0 27","m":"b7b6 a3a1 f3e1 a1e1","r":532,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mLbqP","f":"4r1k1/5ppp/2p5/p7/P7/5P2/4N1PP/1R4K1 b - - 0 31","m":"e8e2 b1b8 e2e8 b8e8","r":591,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mLjZB","f":"5r2/pp3rk1/4P2b/2R3p1/8/1P1Q4/1PP3PP/R4q1K w - - 1 29","m":"a1f1 f7f1 d3f1 f8f1","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mM3dt","f":"3r3k/4q2p/1pQ5/p7/8/2P3R1/5PPP/4R1K1 w - - 1 35","m":"e1e7 d8d1 e7e1 d1e1","r":428,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"mM9v8","f":"7k/3b1rpp/4p3/p1p5/P2QpP2/1R6/2P3PP/6K1 b - - 0 34","m":"c5d4 b3b8 d7c8 b8c8 f7f8 c8f8","r":424,"t":"backRankMate endgame long mate mateIn3"},{"i":"mMN0I","f":"1k3rQ1/pppR4/8/1P2p2p/8/P3P2P/2q2PP1/3R2K1 b - - 0 30","m":"f8g8 d7d8 g8d8 d1d8","r":587,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"mORRJ","f":"4Rr2/1ppk2pp/p1p5/2b5/8/2N5/PPPP2PP/R1B1Qq1K w - - 1 16","m":"e1f1 f8f1","r":493,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mOVDF","f":"r4k2/1N3ppp/2p5/8/2P1R3/1p6/P4PPP/6K1 w - - 0 26","m":"a2b3 a8a1 e4e1 a1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mOzTQ","f":"4r2k/p1Q3pp/8/3p2P1/3P4/4q3/PP4PP/R5K1 w - - 1 32","m":"g1h1 e3e1 a1e1 e8e1","r":566,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"mPBJK","f":"3r2k1/p4ppp/1p4b1/8/3q3P/1PRpQ1P1/P7/4R1K1 b - - 2 34","m":"d4c3 e3e8 d8e8 e1e8","r":561,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"mPCpR","f":"6k1/1p3p1p/p1r1p1p1/3p4/N2P4/8/PP3PPP/4R1K1 w - - 0 23","m":"e1e2 c6c1 e2e1 c1e1","r":401,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mPGbj","f":"1k3r2/pppn2q1/6p1/4P1Pp/8/PB3r2/1PPQ4/1K1R3R b - - 0 27","m":"d7e5 d2d8 f8d8 d1d8","r":477,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"mPTLh","f":"1k3r2/ppp3pp/8/8/2P5/5R2/PP1r1PPP/4RK2 b - - 4 28","m":"f8f3 e1e8 d2d8 e8d8","r":534,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mPZmH","f":"rn2r2k/6pp/2p5/p1N5/Pp6/1B6/1bP1RPPP/3R2K1 b - - 1 19","m":"e8e2 d1d8 e2e8 d8e8","r":435,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mQwbb","f":"r4rk1/bpp3pp/p1npp3/4p3/PP2P2N/1QPP4/6PP/R1B1Rq1K w - - 0 16","m":"e1f1 f8f1","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mR97i","f":"r1b1q2k/ppp3pp/1n6/n3p2Q/8/2NPP3/PPPN2PP/R4RK1 b - - 1 14","m":"e8h5 f1f8","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mRbfV","f":"3r2k1/p4p1p/1p1qp1p1/8/8/2P2P2/PP2Q1PP/5R1K w - - 0 23","m":"f1d1 d6d1 e2d1 d8d1","r":545,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"mRi3y","f":"3r2k1/p4p1p/2p3p1/8/8/8/PP2qPPP/4R1K1 w - - 0 24","m":"e1e2 d8d1 e2e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mT8G9","f":"2kr1b1r/ppp2ppp/4pn2/4P3/8/8/PPP1NPPP/R1BqR1K1 w - - 0 12","m":"e1d1 d8d1","r":414,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mTeN7","f":"5r1k/p2pb2p/1p2p1q1/3n4/1P1P4/P2Q2P1/6NP/2R1B2K w - - 5 31","m":"d3g6 f8f1","r":551,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mTov5","f":"2r3k1/5ppp/8/8/4p1N1/4P3/3q1PPP/3R2K1 w - - 0 29","m":"d1d2 c8c1 d2d1 c1d1","r":535,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mTsss","f":"3r2k1/ppp2ppp/8/8/1P1N4/P7/5PPP/4R1K1 b - - 0 21","m":"d8d4 e1e8","r":419,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"mU3HL","f":"4r1k1/5pp1/R4p1p/2P5/4r3/8/4B1PP/2R4K w - - 0 33","m":"e2f3 e4e1 c1e1 e8e1","r":484,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mUJBE","f":"4r1k1/p2bqpp1/2p4p/8/Q1Pp4/5B2/PP3PPP/R5K1 w - - 2 23","m":"a4a7 e7e1 a1e1 e8e1","r":552,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"mUPwT","f":"3rn2r/pQ2b1k1/2P1q2p/2p5/5B2/8/P4PPP/4R1K1 w - - 0 24","m":"e1e6 d8d1 e6e1 d1e1","r":572,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mUTqA","f":"7k/1b4p1/p1r4p/1p1N4/1P2Pp2/P4P2/3q2PP/3R3K w - - 0 36","m":"d1d2 c6c1 d2d1 c1d1","r":467,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mUW4o","f":"3r1rk1/pp3ppp/4b3/6Q1/3N1R2/2P5/PPq3PP/3R3K w - - 1 22","m":"d4c2 d8d1 c2e1 d1e1 f4f1 e1f1","r":531,"t":"backRankMate hangingPiece long mate mateIn3 middlegame"},{"i":"mV8Rb","f":"3r2k1/5pp1/7p/p1R5/1p2P1P1/5P2/PPPr3P/1K5R w - - 1 27","m":"c5a5 d2d1 h1d1 d8d1","r":529,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mVTQe","f":"r4rk1/p5pp/1pp1b3/3pQ3/8/8/PPP3PP/RN2Rq1K w - - 2 18","m":"e1f1 f8f1","r":421,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mVZQA","f":"2rQ2kr/p4ppp/4p3/4P3/5P2/4B1P1/PPP3qP/2KR3R b - - 4 21","m":"c8d8 d1d8","r":541,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"mVis3","f":"1n1q2k1/5ppp/p2B1b2/1ppr4/4R3/2N5/PPP2PPP/4R1K1 b - - 1 18","m":"d5d6 e4e8 d8e8 e1e8","r":557,"t":"backRankMate fork mate mateIn2 middlegame short"},{"i":"mWPnb","f":"Q4rk1/p4ppp/4p3/1Rp5/2B5/q1n1PN2/P4PPP/1R4K1 b - - 0 20","m":"f8a8 b5b8 a8b8 b1b8","r":525,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mWWDl","f":"5k2/5ppp/1R6/8/1P6/r7/5PPP/6K1 w - - 0 31","m":"b6b7 a3a1","r":566,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"mWvpD","f":"3r1Q1k/pp4pp/2pP2p1/3p4/3Pq3/4P3/P5PP/5RK1 b - - 6 25","m":"d8f8 f1f8","r":418,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"mX3CQ","f":"5r1k/pp4pp/2p5/2np1N2/8/2P1RB1P/P4PPK/8 b - - 7 34","m":"f8f5 e3e8 f5f8 e8f8","r":502,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mX9E9","f":"r4Q1k/p5pp/1p1r4/3P4/4P2q/8/2P3PP/1R3RK1 b - - 2 24","m":"a8f8 f1f8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"mXEiH","f":"5r2/1p5n/p5pk/2QBp3/3nP3/3P4/PPP3PP/R4q1K w - - 3 25","m":"a1f1 f8f1","r":473,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"mXO8K","f":"6k1/1pp5/p1b5/3pNrB1/3b2p1/2N5/PPP3PP/5RK1 w - - 0 24","m":"g1h1 f5f1","r":524,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"mXeeT","f":"2r4k/3q4/5pp1/6b1/8/7P/PP3PPB/3R2K1 w - - 0 26","m":"d1d7 c8c1 d7d1 c1d1","r":460,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mXi8X","f":"rn2r1k1/pp3ppp/8/8/6b1/2P5/PP1Q2PP/RN2q2K w - - 0 16","m":"d2e1 e8e1","r":538,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mYD3s","f":"6k1/1p3p2/p5pp/2B1b3/8/2P5/Pr3PPP/4R1K1 w - - 0 24","m":"e1e5 b2b1 e5e1 b1e1","r":533,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mYiTX","f":"2rk4/p7/1p2Q3/1P4p1/4pp1p/P7/5PPP/6K1 w - - 7 36","m":"e6e4 c8c1 e4e1 c1e1","r":427,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"mYpZ0","f":"1k2r3/1p3p1p/p5p1/4r3/8/8/PP3PPP/2RR2K1 w - - 2 22","m":"d1d7 e5e1 c1e1 e8e1","r":582,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mZRtQ","f":"r4rk1/2p4p/p3p1pQ/1p1np1N1/3P4/1PP4R/1P4PP/R4q1K w - - 8 27","m":"a1f1 f8f1","r":449,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"maBA6","f":"r4rk1/pp1nR1pp/8/2pP4/8/1Q6/PP4PP/R4q1K w - - 2 23","m":"a1f1 f8f1","r":410,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"maRjU","f":"1k1r4/pppQ2pp/5p2/P5n1/3P4/1N6/1P4PP/4R2K b - - 0 28","m":"d8d7 e1e8 d7d8 e8d8","r":424,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mapSZ","f":"5k2/1q3pp1/2nR2bp/p1p5/2P5/PP4QP/5PP1/6K1 b - - 1 38","m":"c6e7 d6d8","r":508,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"mbCGY","f":"6k1/3p1pp1/4p2p/2P1P3/r2P4/8/3bRPPP/6K1 w - - 0 35","m":"e2d2 a4a1 d2d1 a1d1","r":505,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mbGe0","f":"1k1r2r1/2p2p2/Bp1q4/2n3n1/3PpNPp/2Q1P2P/PPP5/1K1R2R1 w - - 4 31","m":"d4c5 d6d1 g1d1 d8d1","r":493,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mbaXP","f":"6k1/p4ppp/2b1p3/7P/8/3R3K/2r3P1/8 b - - 0 37","m":"c2g2 d3d8 c6e8 d8e8","r":412,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mbeBG","f":"6k1/4r1p1/R6p/1pp5/2P5/8/P4PPP/6K1 w - - 0 35","m":"c4b5 e7e1","r":498,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"mbg1C","f":"2r3k1/pp3ppp/5q2/3p1n2/3Pp3/PP2P1PP/3N1n2/1KQ3NR b - - 1 28","m":"f2h1 c1c8 f6d8 c8d8","r":500,"t":"backRankMate hangingPiece mate mateIn2 middlegame short"},{"i":"mby94","f":"r2Q2kr/pp2Bppp/n7/8/8/8/P1q1NPPP/3RK2R b K - 2 17","m":"a8d8 d1d8","r":484,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mcGyq","f":"4rbk1/5pp1/pq1p1n2/1p1Pr2p/3p1Q1B/P7/1PR2PPP/1BR3K1 w - - 4 28","m":"h4f6 e5e1 c1e1 e8e1","r":471,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mcbI2","f":"k2r4/pp4p1/8/2p1n1P1/3P1q2/8/PPQ5/1KR5 b - - 0 30","m":"c5d4 c2c8 d8c8 c1c8","r":488,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"mchgK","f":"3r4/3r2pk/p1b4p/1p6/8/P4P1Q/6PP/2q1R2K w - - 0 35","m":"e1c1 d7d1 c1d1 d8d1","r":420,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mcqaj","f":"5r1k/1p4pp/p7/3pR3/PP4n1/2P3K1/6P1/5R2 b - - 1 36","m":"f8f1 e5e8 f1f8 e8f8","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"me98z","f":"r5k1/pp3ppp/1b3qb1/1B1p4/1P6/P1N4P/4QPP1/4R1K1 b - - 1 22","m":"d5d4 e2e8 a8e8 e1e8","r":588,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"meN9d","f":"6k1/6pp/3p1p2/5r2/p7/2PP4/1P4PP/R6K w - - 0 29","m":"a1a4 f5f1","r":422,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"meqyD","f":"3r2k1/p4ppp/4p3/8/8/4qP2/PP4PP/4R2K w - - 0 30","m":"e1e3 d8d1 e3e1 d1e1","r":570,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mfGZT","f":"6k1/3r1ppp/1R2p3/8/P7/3p4/2r3PP/2NK4 b - - 0 25","m":"c2g2 b6b8 d7d8 b8d8","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mfbGW","f":"2q1Q2k/1p3rpp/p7/8/3p4/1P3P2/PP4PP/4R1K1 b - - 0 26","m":"c8e8 e1e8 f7f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mfhyZ","f":"3r4/6pk/4Bb1p/5P2/8/8/6PP/1R5K w - - 2 43","m":"b1b7 d8d1","r":558,"t":"backRankMate endgame master masterVsMaster mate mateIn1 oneMove"},{"i":"mfzn2","f":"6k1/p4ppp/4r3/8/P2p4/6BP/2R1nPP1/5K2 b - - 3 29","m":"d4d3 c2c8 e6e8 c8e8","r":426,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mg1BR","f":"r2Q2k1/5ppp/b4b1q/p7/2P5/N4N2/PP1R1PPP/4R1K1 b - - 0 21","m":"a8d8 d2d8 f6d8 e1e8","r":586,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mgKLc","f":"4r3/p1q3pk/1pp1r2p/2PpBb2/1P1P4/6Q1/P4PPP/R3R1K1 w - - 1 25","m":"e5c7 e6e1 a1e1 e8e1","r":440,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mgPH6","f":"6k1/p5pp/1p6/3pP3/8/2Pr4/PP2q1PP/4R2K w - - 0 30","m":"e1e2 d3d1 e2e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mgbDJ","f":"2krr3/ppp1qppp/2n2n2/8/8/P1NP1b2/1PQ1BPPP/R3R1K1 w - - 0 15","m":"e2f3 e7e1 a1e1 e8e1","r":548,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mgbVB","f":"r1Q3k1/5ppp/3Pp3/3q4/1p1p1B2/1P1b1P2/6PP/2R3K1 b - - 2 31","m":"a8c8 c1c8","r":581,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"mgfZE","f":"2R3k1/5ppp/4bq2/1p6/1P1pP3/3P1P2/r1Q3PP/r1N2R1K b - - 8 28","m":"e6c8 c2c8 f6d8 c8d8","r":561,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mgjJT","f":"r4r1k/bpp3pp/p3q3/4N3/PPNn1Pn1/3P3R/Q5PP/R1B4K w - - 6 21","m":"e5g4 e6e1","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mhCag","f":"5r1k/pr4p1/1p5p/4p3/2P5/1P5Q/P4qPP/R2R3K w - - 0 29","m":"d1f1 f2f1 a1f1 f8f1","r":599,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mhGvC","f":"5rk1/6pp/p1n1p3/4p3/6Q1/R1P5/6PP/4Rq1K w - - 2 25","m":"e1f1 f8f1","r":520,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"miRey","f":"2r3k1/4bp1p/p3p1p1/1p2P3/1P1p1P2/P2P1Q2/3B2PP/2q4K w - - 0 31","m":"d2c1 c8c1 f3d1 c1d1","r":534,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mibS5","f":"5rk1/8/2pR2pp/6n1/2p1Q1B1/8/PP4PP/R4q1K w - - 2 33","m":"a1f1 f8f1","r":476,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"minnA","f":"r2r2k1/5p1p/2p1p1p1/B1R1P3/5P2/8/P1q3PP/2R4K w - - 0 25","m":"c1c2 d8d1 a5e1 d1e1","r":486,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mj2Mq","f":"3r1r1k/p1p1R1pp/2p5/2q2p2/1Qb5/2P5/PP3PPP/R1B3K1 w - - 1 20","m":"b4c5 d8d1 e7e1 d1e1","r":483,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mjNXi","f":"r4rk1/pp1bQ1pp/8/2p5/8/3P4/PPP3PP/R1B1Rq1K w - - 2 18","m":"e1f1 f8f1","r":554,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mjdOJ","f":"B1r2rk1/p4p1p/4pQp1/1q6/8/8/5PPP/1R4K1 w - - 0 28","m":"b1b5 c8c1","r":526,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"mjs0v","f":"3r1rk1/pp2ppbp/2N1b1p1/6B1/Q7/2P5/PP3PPP/RN1q2K1 w - - 0 16","m":"a4d1 d8d1","r":415,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mk3JS","f":"r5k1/pp3ppp/8/3p1nr1/8/P4PqP/1P2Q1P1/R3R2K b - - 3 25","m":"f5h4 e2e8 a8e8 e1e8","r":471,"t":"backRankMate master mate mateIn2 middlegame sacrifice short"},{"i":"mkWSG","f":"5r1k/pR4pp/P7/8/5Q2/4p2P/6PK/8 b - - 0 39","m":"f8f4 b7b8 f4f8 b8f8","r":528,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mkdtc","f":"3r2k1/p4ppp/n2R4/1p6/8/8/1P2NPPP/2R3K1 b - - 0 23","m":"d8d6 c1c8 d6d8 c8d8","r":429,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mkpxl","f":"2kr3r/ppp2pp1/8/1n2R2p/8/P7/1PP2PPP/R1B3K1 w - - 0 17","m":"e5b5 d8d1","r":436,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ml4Xx","f":"5r2/2R1N3/kp6/p7/P7/6B1/6PP/2R2q1K w - - 5 38","m":"c1f1 f8f1","r":403,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ml87C","f":"4r1k1/3R1p2/6p1/7p/8/1P3P2/3b2PP/7K w - - 0 37","m":"d7d2 e8e1","r":429,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"mlbjY","f":"r1b3k1/p1p2ppp/1pB1r3/8/5pP1/2P2N1P/PP1R1P2/1K5R b - - 0 18","m":"e6c6 d2d8","r":456,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"mljvu","f":"7k/p5pp/8/8/5Q2/7P/6PK/3R1r2 b - - 0 35","m":"f1f4 d1d8 f4f8 d8f8","r":420,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mmTVw","f":"3q3k/p2r2pp/1p6/8/2P1Q3/PP3n1N/5PPP/3R2K1 w - - 6 44","m":"e4f3 d7d1 f3d1 d8d1","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mmTtJ","f":"2r2rk1/6pp/pB2p3/1p2P3/5p2/1P6/P2RN1PP/7K w - - 0 29","m":"e2d4 c8c1 d2d1 c1d1","r":471,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mmjgn","f":"3Q3k/1p4pp/p1n5/8/5r2/8/PP3PPP/3R2K1 b - - 0 25","m":"c6d8 d1d8 f4f8 d8f8","r":545,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mmy7j","f":"6k1/ppr2pp1/6p1/8/8/P7/1P3PPP/3R2K1 w - - 1 23","m":"d1d2 c7c1 d2d1 c1d1","r":438,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"moCu8","f":"rn4k1/pp3ppp/1Q2r3/8/8/4N3/PP3PPP/3RK2R b K - 0 17","m":"a7b6 d1d8 e6e8 d8e8","r":457,"t":"backRankMate endgame mate mateIn2 short"},{"i":"moH3u","f":"8/1p1r2k1/1Qb5/p2r2p1/P3p2p/1P2P1B1/5PP1/2R3K1 w - - 0 50","m":"g3h2 d5d1 c1d1 d7d1","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"moUl2","f":"8/3k3p/2pbr1p1/2B5/3Q4/6P1/PPP4P/1K2R3 w - - 2 36","m":"c5d6 e6e1 d4d1 e1d1","r":520,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"mogka","f":"6k1/1br2ppp/p2Pp1q1/1p1pP3/1P6/P5B1/3Q1PPP/6K1 w - - 0 27","m":"d6c7 g6b1 d2c1 b1c1","r":552,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mojrA","f":"8/6p1/4k2p/pP1p4/P3p3/2r5/1R3PPP/6K1 w - - 0 39","m":"b5b6 c3c1","r":405,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"moysD","f":"1r4k1/p2r1p2/6p1/7p/8/8/PPP2qPP/R1B2R1K w - - 0 24","m":"f1f2 d7d1 f2f1 d1f1","r":517,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mpAjt","f":"6k1/b1p2ppp/8/8/5K2/4r3/PP4PP/3R4 b - - 1 23","m":"e3e7 d1d8 e7e8 d8e8","r":414,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mr8qb","f":"3r3k/pp3Qpp/4p1n1/8/1P6/P7/4R1PP/1R1q3K w - - 1 30","m":"b1d1 d8d1 e2e1 d1e1 f7f1 e1f1","r":424,"t":"backRankMate endgame long mate mateIn3"},{"i":"mrKZr","f":"2B1r1k1/5ppp/1p2p3/4Pn2/1n2b3/2P2N2/P2R1PPP/2KR4 b - - 0 26","m":"e8c8 d2d8 c8d8 d1d8","r":529,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"msXOz","f":"k2r4/1p5p/p3p3/8/P7/2q5/5PPP/4Q1K1 w - - 0 38","m":"e1c3 d8d1 c3e1 d1e1","r":413,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"mso2g","f":"r4bk1/5p1p/p1N5/3P1p2/4r3/2R5/P5PP/5R1K w - - 0 35","m":"f1f5 e4e1 f5f1 e1f1","r":429,"t":"backRankMate endgame mate mateIn2 short"},{"i":"msr1s","f":"r5k1/p1p2pp1/6bp/2N4P/6P1/2P1Q3/q4P2/4R1K1 b - - 0 25","m":"g6h7 e3e8 a8e8 e1e8","r":530,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"mtf5F","f":"r3r1k1/2p1qppp/2p5/8/1R6/P4Q2/5PPP/1R4K1 w - - 3 23","m":"f3c6 e7e1 b1e1 e8e1","r":532,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"mtmGS","f":"rn3rk1/pp4pp/8/2P1N3/4P3/8/PP4PP/RN1Q1q1K w - - 3 16","m":"d1f1 f8f1","r":410,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mtxC4","f":"2r3k1/p1q2ppp/5r2/8/8/2p1QP2/P4PPP/R3R1K1 b - - 1 23","m":"c3c2 e3e8 c8e8 e1e8","r":580,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"muKWX","f":"3r2k1/p6p/5q1p/4p3/2p1P3/2P5/PP4PP/5R1K w - - 0 26","m":"f1f6 d8d1 f6f1 d1f1","r":453,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"muNwS","f":"r5k1/1q3ppp/p1b1p3/2P1P3/P2Q1P2/1P1R3P/6P1/6K1 b - - 2 28","m":"c6g2 d4d8 a8d8 d3d8","r":437,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"muPAv","f":"k7/pp4p1/8/8/4KB2/2r5/2r3PP/3R4 b - - 2 38","m":"c2g2 d1d8 c3c8 d8c8","r":480,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mubc6","f":"3qR1rk/1p4pp/1p2Qp2/r2p4/3p1P2/1B6/PPP3PP/4R1K1 b - - 5 28","m":"g8e8 e6e8 d8e8 e1e8","r":565,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mvIs6","f":"5r1k/6p1/1pp4p/4P3/Q7/2P5/PP3qPP/3R2K1 w - - 3 27","m":"g1h1 f2f1 d1f1 f8f1","r":585,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"mvVhw","f":"4r1k1/5ppp/1p6/p1r5/5pPP/P1P2P2/1KP5/3R3R b - - 1 24","m":"e8e3 d1d8 e3e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mvdHO","f":"3qk2r/1p3ppp/p3p3/1b1pP3/4rP2/2P1Q3/PP3RPP/R1B4K w k - 5 19","m":"e3g3 e4e1 f2f1 e1f1","r":494,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"mvgE6","f":"2r3k1/4Rpp1/2q4p/p3p3/P7/1r2B2Q/1PP2PPP/6K1 w - - 0 23","m":"c2b3 c6c1 e3c1 c8c1","r":581,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"mviTx","f":"4r3/ppkn2Q1/2p5/3p4/3P4/2N4P/PPP5/1K2qR2 w - - 1 28","m":"f1e1 e8e1 c3d1 e1d1","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mvwAY","f":"2r3k1/4bpPp/8/pp1B4/3p4/1P6/1P4PP/4R2K w - - 0 33","m":"e1e7 c8c1 e7e1 c1e1","r":459,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mwSHl","f":"3r2k1/1b3ppp/p3p3/1p2N2Q/1P2Pp2/b7/B1R2PPP/3q2K1 w - - 4 27","m":"h5d1 d8d1","r":488,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mxPpq","f":"3r2k1/p4ppp/8/1p6/8/8/PPP1rPPP/4R1K1 w - - 0 21","m":"e1e2 d8d1 e2e1 d1e1","r":500,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"mxa60","f":"r2q1r1k/ppp2pp1/2n1b2p/b6R/2B1N3/2P3Q1/PP3PPP/R1B3K1 w - - 7 17","m":"c4e6 d8d1","r":462,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"mxyBx","f":"2r3k1/1p3ppp/3npb2/1b6/1P6/P3P3/Q4PPP/3R2K1 w - - 0 29","m":"d1d6 c8c1 d6d1 c1d1","r":503,"t":"backRankMate endgame mate mateIn2 short"},{"i":"my4zD","f":"3rr1k1/pp1R2pp/3pRq2/1Np5/5pQ1/2N5/PPP2PPP/6K1 w - - 1 23","m":"e6f6 e8e1","r":594,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"my9UV","f":"3r2k1/7p/p4p2/1b6/8/2N5/PPP1RPPP/6K1 w - - 2 23","m":"c3b5 d8d1 e2e1 d1e1","r":591,"t":"backRankMate endgame mate mateIn2 short"},{"i":"myDpw","f":"3r1b1r/1Qpk4/2p2pR1/4p3/4P3/1P6/PBPP1P1R/2K4q w - - 1 24","m":"h2h1 h8h1 g6g1 h1g1","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"myEFQ","f":"1r1Q2k1/p4ppp/1pb5/8/2q2P2/1N6/PPP3PP/3R2K1 b - - 1 22","m":"b8d8 d1d8 c6e8 d8e8","r":511,"t":"backRankMate endgame mate mateIn2 short"},{"i":"myP1T","f":"4R3/5k1p/6p1/5p2/p7/P1B5/1Pr2PPP/6K1 w - - 2 34","m":"e8a8 c2c1 c3e1 c1e1","r":590,"t":"backRankMate endgame mate mateIn2 short"},{"i":"myy4g","f":"3r4/pp3k2/2p4p/4Pppn/4p3/2Q5/PP3PPP/2Rq2K1 w - - 0 28","m":"c1d1 d8d1 c3e1 d1e1","r":597,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mzQMv","f":"4r1k1/5pbp/2n1q1p1/1BBp4/3p4/1QP5/5PPP/1R4K1 w - - 1 23","m":"b5c6 e6e1 b1e1 e8e1","r":455,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"mzWhi","f":"3r2k1/p4ppb/2R4p/3RP3/5P2/3p2P1/P4KBP/3r4 b - - 1 28","m":"d8d5 c6c8 d5d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mzjGj","f":"r5k1/5ppp/4p3/2Rr4/P7/1N3P2/6PP/6K1 b - - 2 29","m":"a8a4 c5c8 d5d8 c8d8","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"mzjcQ","f":"2r3k1/5ppp/p3p3/r6n/4P1PP/BPp2P2/P2Q4/1KR1R3 b - - 0 26","m":"c3d2 c1c8","r":468,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"mzjcx","f":"r5k1/ppp2rpp/8/4Q1B1/3P2b1/2N5/PP4PP/R4q1K w - - 2 18","m":"a1f1 f7f1","r":440,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"n04FM","f":"3r3k/1Q1r1ppp/1pN1p3/2p5/2P5/1P6/P4PPP/q4RK1 w - - 0 24","m":"f1a1 d7d1 a1d1 d8d1","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"n06xS","f":"N7/p2k4/2p4p/2p5/1r6/8/P4PPP/4R1K1 w - - 0 27","m":"e1e5 b4b1 e5e1 b1e1","r":407,"t":"backRankMate endgame mate mateIn2 short"},{"i":"n0L3G","f":"2Q4k/4n1pp/3b1p2/p3pP2/3pP1PP/P2P2N1/2R1BK2/1q6 b - - 0 30","m":"e7c8 c2c8 d6f8 c8f8","r":509,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"n0oTr","f":"8/5kpp/1r3p2/3R1P2/p3p3/1P6/P4PPP/6K1 w - - 0 29","m":"b3a4 b6b1 d5d1 b1d1","r":442,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"n0vds","f":"8/3r2kp/2R3p1/pp2p3/2p1P3/P2P2N1/1PP3PP/7K w - - 0 32","m":"d3c4 d7d1 g3f1 d1f1","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"n0xAx","f":"8/2p2p2/p1p1k1pp/1bb5/1P6/P2rP1B1/5PPP/2R3K1 w - - 0 31","m":"c1c5 d3d1","r":472,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"n1C4I","f":"3r2k1/p4pp1/4p3/1p2q3/2p5/2P5/PP3PPP/4R1K1 w - - 0 28","m":"e1e5 d8d1 e5e1 d1e1","r":532,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"n1G4I","f":"6k1/Bp1q1ppp/2r1p3/8/4p3/1P6/P2Q1PPP/6K1 w - - 0 24","m":"d2d7 c6c1 d7d1 c1d1","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"n1ltx","f":"r4rk1/pb1Q2pp/1pp3p1/4N3/2P5/8/PP4PP/RN2Rq1K w - - 2 18","m":"e1f1 f8f1","r":476,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"n22Gt","f":"4r1kr/4qp1p/3pN1p1/p1p5/1p6/5Q2/P1P2PPP/3RR1K1 w - - 1 28","m":"e6f4 e7e1 d1e1 e8e1","r":523,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"n2OwB","f":"2R4k/3p2pp/p7/1p1P4/1P3r2/P3p3/5PPP/5K2 b - - 1 31","m":"f4f8 c8f8","r":457,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove rookEndgame"},{"i":"n35aN","f":"4r2k/6p1/2p4p/1pQ5/1P6/P2P4/2P1qPPP/R5K1 w - - 3 28","m":"c5c6 e2e1 a1e1 e8e1","r":539,"t":"backRankMate endgame master mate mateIn2 sacrifice short"},{"i":"n3Oru","f":"3rr1k1/5ppp/1p2pn2/p1p1N3/3P3R/2P5/PP3PPP/3R2K1 w - - 0 25","m":"d4c5 d8d1","r":549,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"n3e5b","f":"1r2R2k/p4Qpp/8/2p5/2p5/2q2P2/P5PP/R5K1 b - - 1 25","m":"b8e8 f7e8","r":581,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"n3wsX","f":"3r2k1/1P3p1p/p2r2p1/5p2/8/1P2PB2/P1q2PPP/2R3K1 w - - 0 29","m":"c1c2 d6d1 f3d1 d8d1","r":431,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"n40Q8","f":"2r3k1/5ppp/p1p1p3/1P1pP3/P7/8/5PPP/2R3K1 b - - 0 26","m":"c6b5 c1c8","r":548,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove rookEndgame"},{"i":"n4JFX","f":"1r1qnQ1k/3bb1pp/p7/1pp1P3/P7/2N5/1PP3PP/R1B2RK1 b - - 2 18","m":"e7f8 f1f8","r":402,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"n4M31","f":"b1r3k1/4nppp/p7/4p3/3b4/5P2/PP1RN1PP/3R3K b - - 7 21","m":"d4e3 d2d8 c8d8 d1d8","r":485,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"n4TAr","f":"r3r1k1/6p1/p2Pqp1p/1p1R1p2/8/5nQ1/PP3PPP/3R2K1 w - - 0 27","m":"g3f3 e6e1 d1e1 e8e1","r":518,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"n4l7V","f":"r3r1k1/pp3p1p/2p3p1/8/8/2bR4/PP3PPP/R1B3K1 w - - 0 18","m":"d3c3 e8e1","r":497,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"n51Br","f":"8/3r2k1/p4pp1/1p2p2p/1P6/P1Q2P2/2B3PP/3q3K w - - 2 40","m":"c2d1 d7d1 c3e1 d1e1","r":461,"t":"backRankMate endgame mate mateIn2 short"},{"i":"n5I9U","f":"5r1k/pp2b2p/2n1Q1p1/8/1P6/P4B2/6PP/3q3K w - - 0 33","m":"f3d1 f8f1","r":544,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"n5Iqp","f":"1r1r2k1/p1p3pp/2B5/5b2/2P5/P7/4nPPP/R1B1R1K1 w - - 5 19","m":"e1e2 d8d1 e2e1 d1e1","r":480,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"n6LbV","f":"4r3/p5kp/2pp2p1/2p2p2/P2P1P2/1PP5/5NPP/3Rr1K1 w - - 1 33","m":"d1e1 e8e1","r":427,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"n6VyG","f":"6k1/1r3p1p/6p1/P2b4/4p3/8/5PPP/3R2K1 w - - 0 35","m":"d1d5 b7b1 d5d1 b1d1","r":417,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"n6edb","f":"8/p1k1q1p1/1p3nN1/8/5P1Q/8/2r3PP/7K w - - 0 32","m":"g6e7 c2c1 h4e1 c1e1","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"n721y","f":"r2r2k1/p7/R3Rp2/6pp/2pN4/8/P4PPP/6K1 w - - 1 31","m":"d4f5 d8d1 e6e1 d1e1","r":443,"t":"backRankMate endgame mate mateIn2 short"},{"i":"n7PdP","f":"8/5kp1/7p/N7/8/1P2R1B1/1Pr2PPP/6K1 w - - 0 36","m":"a5c4 c2c1 e3e1 c1e1","r":486,"t":"backRankMate endgame mate mateIn2 short"},{"i":"n7VOl","f":"r4rk1/pq3ppp/4p3/4Pn2/P7/3Q1N1P/3R1PP1/5RK1 b - - 0 20","m":"f8d8 d3d8 a8d8 d2d8","r":453,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"n7wDG","f":"2r3k1/pp1n1pp1/7p/4P3/3q4/1P6/P4PPP/3Q2K1 w - - 0 23","m":"d1d4 c8c1 d4d1 c1d1","r":552,"t":"backRankMate endgame mate mateIn2 short"},{"i":"n8BjS","f":"4kr2/pp3pp1/4p1p1/2bpP1N1/qP3Q2/8/P1R2PPP/6K1 w - - 1 26","m":"c2c5 a4d1","r":488,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"n8QyR","f":"k1r5/1b4pp/3Q3n/3Pp3/8/8/5PPP/6K1 w - - 7 38","m":"d6e5 c8c1 e5e1 c1e1","r":451,"t":"backRankMate endgame mate mateIn2 short"},{"i":"n8hoO","f":"6k1/3r1pbp/2Q3p1/2n1p3/p7/P3PN2/1B3PPP/2Rr2K1 w - - 13 31","m":"c1d1 d7d1 f3e1 d1e1","r":453,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nA0cl","f":"k2r4/1p4p1/p4b2/5Q2/1n6/8/6PP/1R5K w - - 0 42","m":"b1b4 d8d1 f5f1 d1f1","r":520,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nA1HP","f":"7k/6pp/2R2r2/1pP1p3/1bR1P3/5PN1/r3NKPP/8 b - - 0 32","m":"b5c4 c6c8 f6f8 c8f8","r":494,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nAMQS","f":"3r3k/6p1/P6p/8/1P2q3/8/5PPP/4R1K1 w - - 0 42","m":"e1e4 d8d1 e4e1 d1e1","r":441,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nAUXx","f":"r5k1/5pp1/4p2p/4P3/1q6/4P3/5PPP/1Q4K1 w - - 0 31","m":"b1b4 a8a1 b4b1 a1b1","r":499,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nAe5Q","f":"r4r1k/pbp3pp/1p6/3B1p2/3PP2q/P1P2Q2/1P3RPP/4R1K1 b - - 2 23","m":"f5e4 f3f8 a8f8 f2f8","r":508,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nB4bs","f":"4rrk1/pp3q2/4p1pp/3pR3/3P4/1QP5/PP4PP/4R1K1 w - - 1 27","m":"g1h1 f7f1 e1f1 f8f1","r":401,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"nB622","f":"1r1r1bk1/5p1p/6p1/R3N3/4b3/2P5/1P3PPP/2B1R1K1 w - - 0 28","m":"e1e4 d8d1 e4e1 d1e1","r":588,"t":"backRankMate fork mate mateIn2 middlegame short"},{"i":"nBGgo","f":"k3r3/bp6/8/6Q1/2P5/1P6/P3r1PP/R6K w - - 3 38","m":"a2a4 e2e1 a1e1 e8e1","r":460,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nBU8h","f":"7k/3r2pp/5p2/q2p4/1R1P3N/4R3/1P4PP/2K5 b - - 0 33","m":"a5b4 e3e8 b4f8 e8f8","r":532,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nBqVQ","f":"3r1Q1k/2p3np/2q1p1p1/1p2P3/3B4/2P5/1P1N2PP/5RK1 b - - 0 26","m":"d8f8 f1f8","r":411,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nBr4C","f":"5rk1/6pp/p3pr2/P2B4/8/8/2P3PP/1q1Q3K w - - 0 24","m":"d1b1 f6f1 b1f1 f8f1","r":592,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"nBuJ8","f":"2b3k1/p4ppp/2p5/4qN2/4p3/1P5P/P1P2PP1/3Q1K2 b - - 1 25","m":"e5f5 d1d8","r":480,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nBz8i","f":"4r1k1/p1p2ppp/8/8/1PP5/3P4/2P1rPPP/R1R3K1 w - - 1 26","m":"a1a7 e2e1 c1e1 e8e1","r":482,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nCGnA","f":"k1R3q1/pp3p2/7p/3P4/5p2/6P1/P4P2/2R3K1 b - - 0 32","m":"g8c8 c1c8","r":410,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"nDB0h","f":"2kr1b1r/ppp2p1p/5p2/8/2N1n3/2P5/PP3PPP/R1B1R1K1 w - - 0 17","m":"e1e4 d8d1 e4e1 d1e1","r":459,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nDWlc","f":"6k1/p3bpp1/4b2p/3pPp2/3P4/4BN2/1Q3PPP/rR1q2K1 w - - 4 28","m":"b1d1 a1d1 f3e1 d1e1","r":522,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nEW6f","f":"5r2/p2k4/2p4R/1pb3p1/4P3/1B1P4/PPP3PP/6K1 w - - 3 29","m":"g1h1 f8f1","r":590,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nElka","f":"k4b2/np1N2q1/p3Q1p1/P6p/2P5/3B4/6PP/R6K w - - 0 35","m":"d7f8 g7a1 d3b1 a1b1 e6e1 b1e1","r":520,"t":"backRankMate endgame hangingPiece long mate mateIn3"},{"i":"nEzc2","f":"r7/5p2/1qbkp1pQ/3p4/8/8/5PPP/1R4K1 w - - 0 37","m":"b1b6 a8a1 b6b1 a1b1 h6c1 b1c1","r":433,"t":"backRankMate endgame long mate mateIn3"},{"i":"nGAaa","f":"r1b3k1/ppp2ppp/8/3R4/7P/4r1q1/PPP5/1K1Q1B1R b - - 0 22","m":"c8e6 d5d8 a8d8 d1d8","r":465,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nGvXx","f":"5r2/3k1rp1/3p4/3Pp3/7Q/8/2P3PP/1q2R2K w - - 0 31","m":"e1b1 f7f1 b1f1 f8f1","r":479,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nGz5t","f":"1r5k/6pp/P1B5/2R2p2/8/8/5PPP/6K1 w - - 3 34","m":"a6a7 b8b1 c5c1 b1c1","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nGzVp","f":"3r4/5pkp/1Q2p1p1/3r4/8/8/P4PPP/5RK1 w - - 1 27","m":"f1b1 d5d1 b1d1 d8d1","r":547,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nHATx","f":"k2Q2rr/pp6/2p2p2/8/4P3/P4B2/1qPRKPP1/3R4 b - - 1 28","m":"g8d8 d2d8 h8d8 d1d8","r":411,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nHmjK","f":"k1Q3rb/pp6/3p1n2/3P4/7P/2R5/PPP2q2/1K2R3 b - - 12 35","m":"g8c8 c3c8","r":493,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"nHzib","f":"7k/5Rpp/p5n1/1p2P3/6Q1/P2P4/BPr3PP/7K w - - 1 33","m":"g4d7 c2c1 f7f1 c1f1","r":596,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nIB2k","f":"1k4Qr/ppp4q/3p3r/4p3/8/1PN3RP/P1PP1P2/2K3R1 b - - 3 26","m":"h7g8 g3g8 h8g8 g1g8","r":497,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nIbqA","f":"4rr1k/pQ4pp/3pp3/8/8/3P4/PPP3PP/R4q1K w - - 2 21","m":"a1f1 f8f1","r":483,"t":"backRankMate endgame master mate mateIn1 oneMove queenRookEndgame"},{"i":"nIe4A","f":"r5k1/5p2/1q2p1p1/7p/8/8/1Q3PPP/6K1 w - - 0 32","m":"b2b6 a8a1 b6b1 a1b1","r":541,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nIefV","f":"q4k2/6p1/3pBb1p/2pP4/1pP5/1P2P3/5PPP/3Q2K1 w - - 15 34","m":"d1h5 a8a1 h5d1 a1d1","r":488,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nJFNw","f":"2r1R2k/p5pp/8/3B1p2/2n5/P5P1/5P1P/4R1K1 b - - 2 35","m":"c8e8 e1e8","r":482,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nJIU8","f":"1r4k1/1N1R1ppp/p3p3/8/1b1p4/1P1P4/3PRPPP/2r3K1 w - - 7 27","m":"e2e1 c1e1","r":505,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"nJbfa","f":"5r2/p5pk/1p1Np2p/2n1P2Q/5r2/8/P5PP/4qR1K w - - 0 28","m":"f1e1 f4f1 e1f1 f8f1","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nK8cD","f":"2r3k1/1R3ppp/4p3/1p1p4/8/7P/2R2PP1/6K1 b - - 0 27","m":"c8c2 b7b8 c2c8 b8c8","r":520,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nK9Nr","f":"6k1/1b1r2pp/1p1P1r2/4R3/2B2p2/P1P2P2/1P4PP/6K1 b - - 0 35","m":"g8h8 e5e8 f6f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nKGDV","f":"1k3Q1r/bpp5/p6p/6p1/1P5P/P5P1/3qN3/5R1K b - - 5 29","m":"h8f8 f1f8 d2d8 f8d8","r":429,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nKI0Z","f":"r3r1k1/p4pp1/1pn2b2/2p4Q/5B2/1PP4R/P4PPP/3Rq1K1 w - - 9 25","m":"d1e1 e8e1","r":562,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"nKJc6","f":"r2qr1k1/2p2ppp/p1P2N2/3p4/6b1/5N2/PP2QPPP/R3R1K1 b - - 1 16","m":"d8f6 e2e8 a8e8 e1e8","r":407,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nKR0R","f":"2r3k1/1p6/4p2p/p5p1/3qp3/P5B1/1P3PPP/3R2K1 w - - 0 30","m":"d1d4 c8c1 d4d1 c1d1","r":400,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"nKxAg","f":"r1r3k1/1b3ppp/p3p3/8/3Q4/2P2P2/q1P1B1PP/2KR3R b - - 0 24","m":"c8d8 d4d8 a8d8 d1d8","r":514,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nLOLM","f":"1B4k1/7n/6pp/p2b4/8/r3P3/5PPP/3R2K1 w - - 0 29","m":"d1d5 a3a1 d5d1 a1d1","r":471,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nLuvn","f":"4rQ1k/pp4pp/2p3b1/8/2BP4/2P1q3/P5PP/5R1K b - - 6 29","m":"e8f8 f1f8","r":456,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nLvho","f":"7k/6pp/r2b4/5P2/5p2/2R2P2/5PKP/2n5 b - - 8 44","m":"c1e2 c3c8 d6f8 c8f8","r":507,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nMOE4","f":"6k1/1p1r1ppp/1P1P4/5b2/r7/P5B1/4N1PP/2R4K b - - 0 32","m":"a4a3 c1c8 d7d8 c8d8","r":452,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nMSAG","f":"4r2k/pp4pp/4Bb2/8/8/2P2R2/PP4PP/7K w - - 3 24","m":"e6b3 e8e1 f3f1 e1f1","r":450,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nMeUF","f":"3r2k1/1p3p1p/p3p1p1/4q3/2R5/1P6/P1P2PPP/4R1K1 w - - 0 24","m":"e1e5 d8d1 e5e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nN4uU","f":"k6r/pp2p2p/2p3b1/3rb3/5Q2/8/P4PPP/4R1K1 w - - 0 26","m":"e1e5 d5d1 e5e1 d1e1","r":544,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nNXth","f":"6k1/pR3ppp/3r1n2/8/1P6/P3P3/5PPP/5K2 b - - 0 28","m":"d6a6 b7b8 f6e8 b8e8","r":450,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nNzw9","f":"2r3k1/5ppp/p7/2B1P3/3p4/5R2/P5PP/7K w - - 1 31","m":"c5d6 c8c1 f3f1 c1f1","r":517,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nO1WB","f":"6k1/P4ppp/8/1Rp5/2P5/3r1qP1/3Q1P1P/6K1 b - - 0 26","m":"d3d2 b5b8 d2d8 b8d8","r":486,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nOCl9","f":"r1bR1bk1/1r3p1p/1Qp1p1p1/4N3/4P3/2P5/P4PPP/6K1 w - - 4 24","m":"b6c6 b7b1 d8d1 b1d1","r":438,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nOFcz","f":"1r3r1k/8/2pN2pp/p1P5/3P4/PP6/5QPP/7K w - - 1 33","m":"f2d2 f8f1","r":460,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nOdCR","f":"3k4/3r3p/4b3/8/5q2/8/PP4PP/2Q4K w - - 0 31","m":"c1f4 d7d1 f4f1 d1f1","r":437,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nPAHi","f":"2k4r/pb1r1ppp/1pp4n/4R3/2P5/1P6/P4PPP/RNB3K1 w - - 0 17","m":"c1b2 d7d1 e5e1 d1e1","r":557,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nPZau","f":"1r1Q2k1/2q2ppp/4p3/2r5/1p2p3/7P/PPPR1PP1/2KR4 b - - 1 21","m":"b8d8 d2d8 c7d8 d1d8","r":467,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nPcZv","f":"2r3k1/5ppp/3npb2/3p4/3N4/1R2P3/5PPP/Q1r3K1 w - - 1 26","m":"a1c1 c8c1","r":446,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"nPdst","f":"6k1/p1R3p1/1n5p/2p1Np2/4p3/8/r1PB1PPP/6K1 w - - 0 28","m":"c7c5 a2a1 d2c1 a1c1","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nQHTx","f":"1QRr2k1/pp3ppp/5q2/5p2/8/7P/PP3PP1/6K1 b - - 3 24","m":"d8c8 b8c8 f6d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nQOfD","f":"1k6/p2n1r1p/1pQ5/8/8/8/PPP3PP/1K1R4 w - - 1 25","m":"d1d7 f7f1 d7d1 f1d1","r":508,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nQspL","f":"6k1/p1p1Rp1p/3p4/2pP4/3r4/8/PPP2PPP/6K1 w - - 2 24","m":"e7c7 d4d1","r":564,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"nR1d8","f":"1k5r/ppp2p2/3p1P2/3P2Q1/8/3P3P/6RK/q7 b - - 4 33","m":"a1f1 g5g8 h8g8 g2g8","r":577,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"nR9nr","f":"6k1/3b1rpp/8/3p4/4p3/Q7/P5PP/1R3q1K w - - 2 31","m":"b1f1 f7f1","r":496,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nRMKO","f":"4r1k1/1p2r1bp/p2p2p1/2pP4/2P5/1P3R1P/Pq1Q1PPB/2R3K1 w - - 1 28","m":"d2b2 e7e1 c1e1 e8e1","r":416,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nRrR8","f":"3r1rk1/p4ppp/4pn2/8/5P2/8/PP3qPP/R1B2R1K w - - 0 20","m":"f1f2 d8d1 f2f1 d1f1","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nRsFS","f":"R7/p4ppk/4b2p/8/8/P1B5/1Pr2PPP/6K1 w - - 6 29","m":"a8a7 c2c1 c3e1 c1e1","r":590,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nS0eC","f":"7k/4R1pp/p7/3p4/4p3/7P/P5PK/5r2 b - - 1 31","m":"f1a1 e7e8","r":437,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"nSHLS","f":"r2R4/1b3pkp/p1q3p1/1p1N4/8/1Q6/PP3PPP/6K1 w - - 4 25","m":"d8a8 c6c1 b3d1 c1d1","r":542,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nScMj","f":"r5k1/p6p/2p3p1/1p1p1rN1/5Qb1/6R1/P1P3PP/7K w - - 1 29","m":"f4g4 f5f1","r":494,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nSdLM","f":"1rbQ2k1/1q2bppp/p1p5/4p1P1/N1p1P3/4BP2/PPP4P/1K1R3R b - - 0 21","m":"e7d8 d1d8","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"nSwiG","f":"2r5/5kp1/1B2p1np/PP1p1p2/8/8/4RPPP/R1r3K1 w - - 1 31","m":"a1c1 c8c1 e2e1 c1e1","r":488,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nT0jI","f":"k7/pp5p/2p2r2/7p/4Kp2/1PP5/P5n1/3B2R1 b - - 1 44","m":"g2e3 g1g8 f6f8 g8f8","r":405,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nTOiz","f":"3r3k/pQ3ppp/8/2n1R3/8/3q3P/PP4P1/4R2K b - - 0 28","m":"c5b7 e5e8 d8e8 e1e8","r":585,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nTjRe","f":"8/p1p3pk/1p1r3p/8/P7/1P3P2/2P3PP/4R2K w - - 0 30","m":"e1e7 d6d1 e7e1 d1e1","r":415,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nU1JX","f":"1r6/4b1k1/3p1p1p/3B2p1/4P3/P7/2P3PP/3R3K w - - 2 35","m":"d1d3 b8b1 d3d1 b1d1","r":594,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nUCgB","f":"r1bb3k/ppp3pp/8/4P3/8/1BN2R2/PPn3PP/6K1 b - - 1 18","m":"c2d4 f3f8","r":443,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"nUNLz","f":"r1bqr1k1/pp3ppp/2p5/3p4/2nR4/1QP5/P2N1PPP/R1B3K1 w - - 2 15","m":"d2c4 e8e1","r":584,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"nUOj6","f":"4rk2/1p3p2/2p2p2/3n1P2/PP4Q1/8/6PP/3R3K w - - 5 37","m":"d1d5 e8e1","r":504,"t":"backRankMate endgame master mate mateIn1 oneMove queenRookEndgame"},{"i":"nUWPb","f":"4r1k1/pp3pp1/5n1p/P2p1R2/1P6/2r3P1/6PP/2R4K w - - 0 29","m":"c1c3 e8e1 f5f1 e1f1","r":512,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nUkSR","f":"1k3R1r/ppp1p1pp/8/8/3r4/8/PPP3PP/5R1K b - - 0 21","m":"h8f8 f1f8 d4d8 f8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nVtPo","f":"k1Qr4/pp4b1/q6p/P3P1p1/3r4/2R5/6PP/2R3K1 b - - 3 37","m":"d8c8 c3c8","r":583,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nVuTa","f":"r5k1/1pp2ppp/4b3/4R1q1/p7/P7/1PPQ2PP/2KR4 b - - 0 23","m":"g5e5 d2d8 a8d8 d1d8","r":400,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"nWFX4","f":"2r3k1/pp1q1ppp/8/5N2/1P2p3/P3P3/5PPP/3R2K1 w - - 0 24","m":"d1d7 c8c1 d7d1 c1d1","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nWNsF","f":"r1b3k1/1pp2pp1/p6p/P7/1Pr5/3q3P/5PPB/RN1R2K1 w - - 0 23","m":"d1d3 c4c1 d3d1 c1d1","r":410,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nWt7n","f":"3r1rk1/1p2b2p/p3R1p1/2p2n2/8/2PB4/PP3PPP/R1B3K1 w - - 1 20","m":"d3f5 d8d1 e6e1 d1e1","r":480,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nX1qp","f":"2r3k1/5ppp/p3p3/4P3/5P2/1P3QP1/q3N1KP/4b3 b - - 1 31","m":"c8c2 f3a8 c2c8 a8c8","r":429,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nX7zX","f":"r2Q3k/p1p3pp/1p6/8/3P4/4q3/P4RPP/5R1K b - - 0 25","m":"a8d8 f2f8 d8f8 f1f8","r":414,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nXKts","f":"b2RR1k1/2p2ppp/1nq5/8/5P2/2N3P1/PP5P/6K1 b - - 0 27","m":"c6e8 d8e8","r":520,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"nXdFb","f":"r2Q2k1/5ppp/4p3/2r5/1pn5/1B3P2/2P2P1P/3R2K1 b - - 0 26","m":"a8d8 d1d8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nXkk5","f":"6k1/p2q1ppp/Q5b1/3R4/8/5PP1/PP5P/6K1 b - - 0 27","m":"d7d5 a6c8 d5d8 c8d8","r":543,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nYU5t","f":"3r3k/ppp3pp/2nq4/1B6/Q4R2/2B1b3/PPP3PP/2K4R w - - 1 23","m":"c1b1 d6d1 h1d1 d8d1","r":553,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"nYh0L","f":"2k2r2/1p2bQ1p/p1q5/3RP3/5B2/4P3/PP3PPP/6K1 w - - 1 23","m":"f7e7 c6c1 d5d1 c1d1","r":503,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nYomM","f":"5rk1/1p3ppp/p3b3/2B5/1P6/P2R2PP/2r2P2/3R2K1 b - - 2 29","m":"f8c8 d3d8 c8d8 d1d8","r":426,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nYrEb","f":"6k1/pRp2ppp/8/8/8/4P2r/P5K1/8 b - - 1 30","m":"h3e3 b7b8 e3e8 b8e8","r":493,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nZOGy","f":"6k1/5ppp/1R3n2/1Np5/5n2/1PP5/P3r1PP/3K4 b - - 2 30","m":"e2a2 b6b8 f6e8 b8e8","r":513,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nZUj9","f":"3r2k1/p1p2ppp/8/6P1/2P2q2/1P5P/P3Q3/4R2K b - - 0 39","m":"f4g5 e2e8 d8e8 e1e8","r":457,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"nZpod","f":"3RQ1k1/p4ppp/1p3b2/2p5/4q3/4B2P/PP3PP1/6K1 b - - 0 30","m":"e4e8 d8e8","r":531,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"naFlk","f":"3rQ2k/pp4pp/2p2q2/8/P2r1P2/6PP/5PK1/2R1R3 b - - 1 31","m":"d8e8 e1e8 f6f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nai6G","f":"7k/rP4pp/3p4/4p3/Rp1pP3/1P3P1P/5KP1/8 b - - 0 42","m":"a7b7 a4a8 b7b8 a8b8","r":597,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nanb8","f":"4r1k1/pp3pbp/6p1/5b2/3P4/P3B1Q1/5PPP/2q3K1 w - - 0 26","m":"e3c1 e8e1","r":416,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nbhMA","f":"3rk2r/p4ppp/2p1pn2/2N1R3/8/8/PPP1qPPP/R1B3K1 w k - 0 16","m":"e5e2 d8d1 e2e1 d1e1","r":415,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nblBa","f":"r3r1k1/ppp2pbp/5npB/3n2Q1/2B5/N1PP4/PP3PPP/R3q1KR w - - 2 16","m":"a1e1 e8e1","r":525,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"nbrKB","f":"2r2Q1k/p5pp/4p3/2p3b1/8/2qP2R1/P5PP/5R1K b - - 2 28","m":"c8f8 f1f8","r":535,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nd3sj","f":"2r3k1/1r3p1p/6p1/1R2Q3/PP2P3/8/5PPP/6K1 w - - 1 40","m":"b5b7 c8c1","r":501,"t":"backRankMate endgame master mate mateIn1 oneMove queenRookEndgame"},{"i":"nd4NN","f":"5r2/R2R1pkp/4p1p1/8/8/1P6/1r3PPP/6K1 w - - 1 27","m":"a7b7 b2b1 d7d1 b1d1","r":452,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nd8kO","f":"3r4/pp2ppkp/2p2np1/6N1/8/1R6/PPP2PPP/2Rr2K1 w - - 7 21","m":"c1d1 d8d1","r":479,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ndcWi","f":"5r1k/p4Ppp/1p6/8/3p4/8/PP3PPP/4R1K1 b - - 0 27","m":"f8f7 e1e8 f7f8 e8f8","r":417,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"neRaI","f":"2r5/4kppp/1p1Rp3/pP6/P3R3/8/5PPP/6K1 w - - 5 29","m":"d6b6 c8c1 e4e1 c1e1","r":438,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nfGDu","f":"r7/4k3/5p1p/4p3/2p5/N1R5/5PPP/6K1 w - - 2 37","m":"a3c4 a8a1 c3c1 a1c1","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nfe0r","f":"8/R7/2p2kpp/8/1r6/8/5PPP/6K1 w - - 0 33","m":"a7d7 b4b1 d7d1 b1d1","r":498,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nfz84","f":"2b5/p1kr4/1p3B2/4N3/2q5/8/2P2PPP/6K1 w - - 0 43","m":"e5c4 d7d1","r":590,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nfzZa","f":"r7/6k1/2R5/3p4/3P4/8/2N2PPP/q5K1 w - - 0 36","m":"c2a1 a8a1 c6c1 a1c1","r":409,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ngbX8","f":"2kr3r/ppp2ppp/4bn2/4p3/1bP5/1P4P1/P3PPBP/R1BNK2R w KQ - 3 11","m":"e1f1 d8d1","r":596,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"nhNIk","f":"1k6/ppp2p2/1b1p1Bp1/3P1BQp/3P3P/2P2P2/PPK5/4q3 b - - 2 27","m":"g6f5 g5g8 e1e8 g8e8","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nhPEw","f":"3r3k/1p3rpp/p1pQ1p2/3n4/P2P4/2P4P/1P4P1/4RR1K b - - 0 29","m":"d8d6 e1e8 f7f8 e8f8","r":557,"t":"backRankMate endgame mate mateIn2 short"},{"i":"niEl3","f":"3krb2/2p3p1/3p1n1p/5Q2/3N4/4rP2/P1P3PP/1q1R3K w - - 0 32","m":"d1b1 e3e1 b1e1 e8e1","r":450,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"niMRE","f":"8/2p3pp/r7/P1k5/2P5/2B1p3/5rPP/R1R4K w - - 1 35","m":"c3e1 f2f1","r":571,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"niU6w","f":"4r1k1/1p1n1p1p/pbp1r1p1/7B/5B2/1QP5/PP4PP/R6K w - - 2 28","m":"h5g4 e6e1 a1e1 e8e1","r":520,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nicpq","f":"2R4k/4Nrpp/4p3/1p1p1b2/p2P4/P3P1P1/1P1n1PP1/6K1 b - - 1 28","m":"f7f8 c8f8","r":588,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"nirbP","f":"6k1/p4ppp/2R1p3/2p1P3/8/2P4P/5PPK/1r6 b - - 1 33","m":"b1f1 c6c8","r":432,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"nis0z","f":"5r1k/p2R2pp/1p6/8/5Q2/5P1P/6PK/8 b - - 0 29","m":"f8f4 d7d8 f4f8 d8f8","r":435,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nj3wX","f":"7r/ppk3pp/2prB3/4nR2/4N3/8/PPP3PP/7K w - - 0 21","m":"f5e5 d6d1","r":434,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"nj8t8","f":"2r3k1/5ppp/4p3/p2p4/P7/1R3P2/2Q3PP/5K2 b - - 0 24","m":"c8c2 b3b8 c2c8 b8c8","r":437,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"njCN2","f":"r1bqB2k/ppp3pp/1b6/4P3/3n4/2P1p2P/PP2Q1P1/RN3R1K b - - 0 16","m":"d4e2 f1f8","r":572,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"njMn2","f":"k2Q3r/pp4p1/7p/3R4/5B2/7P/PP3PPK/4q3 b - - 7 31","m":"h8d8 d5d8","r":412,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"njrRO","f":"7r/2R3pp/p1R2pk1/3pP3/3B4/P2r4/5PPP/6K1 w - - 0 29","m":"d4c3 d3d1 c3e1 d1e1","r":596,"t":"backRankMate endgame mate mateIn2 short"},{"i":"njsa6","f":"3r1rk1/3q3p/p1R2Pp1/1p2Pn2/5P2/4N3/PPP3QP/1K5R w - - 2 29","m":"e3f5 d7d1 h1d1 d8d1","r":535,"t":"backRankMate master mate mateIn2 middlegame sacrifice short"},{"i":"nk8WD","f":"4rbk1/5ppp/q2p4/2p5/5B2/8/1PP2PPP/R5K1 w - - 0 25","m":"a1a6 e8e1","r":400,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"nkFc7","f":"3r4/p2R3p/1b5k/1Pp1Bp2/2P2P2/8/6PP/7K w - - 1 33","m":"d7f7 d8d1","r":447,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nkMiZ","f":"r5k1/pp3p1p/4p1p1/4N3/8/1PP1R3/1P1r1PPP/R5K1 w - - 1 25","m":"a1a2 d2d1 e3e1 d1e1","r":450,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nkxmy","f":"3R4/5pk1/8/6p1/p6p/5N1P/r4PPB/6K1 w - - 1 35","m":"d8a8 a2a1 f3e1 a1e1","r":517,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nl4vw","f":"6k1/1p3ppp/2p5/3p4/r2PP3/3Q4/3q1PPP/6K1 w - - 0 24","m":"d3d2 a4a1 d2c1 a1c1","r":423,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nlEyT","f":"8/5ppp/2k1p3/2P5/3P4/2B1P3/2r2PPP/R5K1 w - - 3 33","m":"a1a3 c2c1 c3e1 c1e1","r":451,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nlre6","f":"6k1/1p4p1/1Pr1p2p/3p4/3P4/1P6/5PPP/4R1K1 w - - 3 26","m":"e1e3 c6c1 e3e1 c1e1","r":428,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nm9CE","f":"3r2k1/p1Q2ppp/4b3/3r2B1/4R3/8/P4PPP/2Rr2K1 w - - 0 24","m":"c1d1 d5d1 e4e1 d1e1","r":574,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nmm0v","f":"2r4k/pp2Q3/2r2p1p/5bN1/8/8/PP3P2/K2q2R1 w - - 0 33","m":"g1d1 c6c1 d1c1 c8c1","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nnE4A","f":"7k/p4ppp/1p2p3/3n4/1qP5/2Q5/PP5P/3RK3 b - - 2 38","m":"d5c3 d1d8 b4f8 d8f8","r":586,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nnJv2","f":"4r1k1/p4ppp/8/8/5p2/1P1R3P/5PPK/8 b - - 0 31","m":"e8e2 d3d8 e2e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nnNgk","f":"1rQ3k1/pp2Rppp/2p5/6q1/8/7b/PPP2PPP/4RBK1 b - - 0 22","m":"b8c8 e7e8 c8e8 e1e8","r":573,"t":"backRankMate endgame mate mateIn2 short"},{"i":"no4PO","f":"2r1r1k1/p4ppp/2p2n2/3p3b/8/2P2P2/PPB2qPP/R1B2R1K w - - 0 19","m":"f1f2 e8e1 f2f1 e1f1","r":558,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"noJ5y","f":"2b1rrk1/Rp6/2pP3p/5pp1/8/4B3/1PP2PPP/4R1K1 w - - 1 23","m":"e3b6 e8e1","r":412,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"noKr2","f":"4r2k/b1p3pp/8/4B3/8/2P2P1b/PP1R4/2K5 b - - 0 30","m":"e8e5 d2d8 e5e8 d8e8","r":418,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nokVS","f":"3r1rk1/5p1p/4p1p1/4P3/8/2q5/P3R1PP/2R4K w - - 0 36","m":"c1c3 d8d1 e2e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nompT","f":"1r6/4k2p/7R/3P1b2/8/8/5PPP/2R3K1 w - - 3 34","m":"c1c5 b8b1 c5c1 b1c1","r":570,"t":"backRankMate endgame mate mateIn2 short"},{"i":"np2Yu","f":"1k1r4/prpQ4/8/6pp/8/3PR3/P5PP/4R2K b - - 0 31","m":"d8d7 e3e8 d7d8 e8d8","r":529,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"npdBi","f":"2r3k1/4pp1p/3p2p1/1P1P4/PR6/2r5/5PPP/4R1K1 w - - 0 34","m":"e1e7 c3c1 e7e1 c1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nq2KH","f":"r4rk1/p2p2pp/4p3/8/8/8/Pq2Q1PP/RN5K w - - 0 22","m":"e2b2 f8f1","r":516,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nqU6n","f":"rBR5/2Rb3p/4pkp1/3pp2n/8/8/1P3PPP/6K1 w - - 6 30","m":"c7d7 a8a1 c8c1 a1c1","r":547,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nqZtB","f":"2R1r2k/1q4pp/8/p7/1pQ2p2/5P2/P5PP/2R2K2 b - - 0 37","m":"e8c8 c4c8 b7c8 c1c8","r":526,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nqlYa","f":"3r2k1/1p3p1p/p1p3p1/q7/4Q3/5P2/6PP/R6K w - - 0 30","m":"a1a5 d8d1 e4e1 d1e1","r":461,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nqu5O","f":"r6k/p4Rb1/6QN/4q1p1/4r3/2P3P1/PP4PP/R6K w - - 5 31","m":"h6f5 e4e1 a1e1 e5e1","r":522,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nrIYF","f":"4Q3/6kp/1p1qr2r/pPpPp3/2P1Pp2/P6R/6PP/7K w - - 0 38","m":"d5e6 d6d1","r":406,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"nrTKT","f":"Rr2Q2k/6pp/8/8/8/2P3PP/6PK/1q6 b - - 4 38","m":"b8e8 a8e8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"nrXcu","f":"5r1k/5Rpp/2p5/1R1np3/7P/2P2P2/P5P1/6K1 b - - 0 41","m":"f8f7 b5b8 f7f8 b8f8","r":449,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nri8U","f":"5rk1/1p1R1ppp/p7/4p3/8/2P2P1P/Pr3P2/3R2K1 b - - 1 23","m":"f8c8 d7d8 c8d8 d1d8","r":461,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nrsLS","f":"6k1/2Q2ppp/4p3/3p2P1/3P3P/5PK1/2r5/R7 b - - 0 39","m":"c2c7 a1a8 c7c8 a8c8","r":420,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nsTtc","f":"5rk1/1r3ppp/2b3q1/8/8/P3Q1P1/5P1P/4R1K1 b - - 2 31","m":"f8e8 e3e8 c6e8 e1e8","r":432,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nscve","f":"4r1k1/2p2ppp/ppr5/8/2n1NP2/P2RP3/6PP/1R4K1 b - - 2 26","m":"e8e4 d3d8 e4e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nsmle","f":"r5k1/2R2ppp/3Bp1n1/8/n3r2P/8/5PP1/2R3K1 b - - 5 26","m":"g6e5 c7c8 a8c8 c1c8","r":512,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nstoj","f":"4r1k1/1p3ppp/3pR3/1p1n4/5P2/3P2P1/PP1B1K1P/2R5 b - - 0 21","m":"e8e6 c1c8 e6e8 c8e8","r":524,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ntGeO","f":"4r3/2p3nk/p5R1/7P/8/8/PP6/K2R4 w - - 3 36","m":"d1d7 e8e1 d7d1 e1d1","r":420,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"ntKdf","f":"3r4/5pk1/2p2bp1/p1p1p2p/1q2P1N1/1PPr1P2/P3Q1PP/3R3K w - - 0 31","m":"c3b4 d3d1 e2d1 d8d1","r":460,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nu5Ji","f":"3r2k1/p4ppp/4p3/4P3/3p4/4nNP1/PP4P1/2R3K1 b - - 0 25","m":"d8d5 c1c8 d5d8 c8d8","r":563,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nu61M","f":"3r2k1/p2r1pbp/1p2p1p1/8/8/P1P1BQ2/1P3PPP/3qR1K1 w - - 0 24","m":"e1d1 d7d1 f3d1 d8d1","r":486,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nuOva","f":"6k1/6pp/4p3/5p2/3rnP2/3B1R2/1PP3PP/7K w - - 0 27","m":"d3e4 d4d1 f3f1 d1f1","r":594,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nuW0o","f":"6k1/7p/r5p1/2P2p2/3b3B/8/2P2PPP/3R2K1 w - - 0 33","m":"d1d4 a6a1 d4d1 a1d1","r":463,"t":"backRankMate endgame mate mateIn2 short"},{"i":"num5I","f":"3r1rk1/pp3ppp/2n5/2bRp3/4B1b1/1P3N2/P1P2PPP/R1B3K1 w - - 3 16","m":"d5c5 d8d1 f3e1 d1e1","r":467,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"nvBQS","f":"8/3r1k2/R1nP4/2PN1p1p/3r2p1/p7/5PPP/3R2K1 w - - 9 50","m":"a6c6 d4d1","r":435,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"nvIn5","f":"4r2k/Q5p1/3p3p/2p5/2Pp1R2/1P6/P5PP/R3q2K w - - 1 28","m":"a1e1 e8e1 f4f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"nvInF","f":"2r4k/2P3pp/8/8/8/1R4K1/7P/8 b - - 0 49","m":"c8c7 b3b8 c7c8 b8c8","r":469,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"nvVfa","f":"r1bk1Q1r/ppppn2p/2n5/4P3/3B4/8/PPP3PP/RN3RK1 b - - 0 14","m":"h8f8 f1f8","r":457,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"nwCzR","f":"5rk1/2p3b1/3p4/pPpP3p/4q1p1/6P1/6NP/1Q5K w - - 0 34","m":"b1e4 f8f1","r":480,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nwDio","f":"7k/3r2pp/1p3p2/p1p2P2/4PQ2/q2P2P1/5RK1/8 b - - 1 49","m":"d7d3 f4b8 d3d8 b8d8","r":415,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nwnAi","f":"1k6/ppp3Q1/4p3/2Pp1p2/3P4/1N3P2/PP6/K2q2Rr w - - 5 34","m":"g1d1 h1d1 b3c1 d1c1","r":420,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nx311","f":"2r1r1k1/3p1p1p/4pQpB/4P3/8/5P2/PP3RPP/2q4K w - - 1 30","m":"h6c1 c8c1 f2f1 c1f1","r":482,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nxG3M","f":"8/pN2k1p1/7p/8/4N3/8/r4rPP/R6K w - - 0 34","m":"a1a2 f2f1","r":578,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nxSxJ","f":"r1b3k1/pp3ppp/2B1p3/8/5n2/B4N2/PPP2KPP/3R4 b - - 0 18","m":"b7c6 d1d8","r":580,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nxU1I","f":"4Q3/6pk/1p2p2p/3p4/3q4/P7/1P4PP/7K w - - 8 40","m":"e8e6 d4d1 e6e1 d1e1","r":510,"t":"backRankMate endgame mate mateIn2 queenEndgame short"},{"i":"nxkIn","f":"4rQ1k/6pp/1pP5/p1p5/n1P5/5RPP/4q1BK/8 b - - 2 34","m":"e8f8 f3f8","r":509,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nxsEV","f":"8/ppR3pk/8/3p4/3P4/2P5/rP3PPP/7K w - - 0 37","m":"c7b7 a2a1","r":418,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"nxtvi","f":"r5k1/1pp1qRpp/3rn3/p7/P1B5/N7/QP4PP/7K w - - 0 26","m":"f7e7 d6d1 c4f1 d1f1","r":595,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ny0tc","f":"2N4k/5pp1/p1B3bp/1Pn5/P7/4R3/5PPP/3r2K1 w - - 1 29","m":"e3e1 d1e1","r":471,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"nyXYG","f":"4R3/p4pk1/2p3p1/7p/1n1r4/1P1N4/P1P2PPP/6K1 w - - 4 24","m":"d3b4 d4d1 e8e1 d1e1","r":471,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nyr21","f":"k7/ppRbb1p1/4pp2/1N1qP3/1P6/6P1/P2B1K2/8 b - - 1 37","m":"d7b5 c7c8","r":564,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"nzGmt","f":"2kr2nb/ppp2p1p/2b5/3p4/3P4/1P2PQ1N/P1q2PPP/RN3RK1 w - - 0 13","m":"f1c1 c2c1 f3d1 c1d1","r":538,"t":"backRankMate hangingPiece mate mateIn2 middlegame short"},{"i":"nzoRV","f":"7k/5rpp/8/2p5/4P3/1R6/Pb3P1P/6K1 b - - 1 34","m":"b2d4 b3b8 f7f8 b8f8","r":543,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nzqzG","f":"3r3k/p5p1/1p2PbQp/2p2P2/2P1q3/1P6/P5PP/4R2K w - - 0 34","m":"e1e4 d8d1 e4e1 d1e1","r":487,"t":"backRankMate endgame mate mateIn2 short"},{"i":"nzwNL","f":"4Q2k/2q3pp/p1N2nn1/1p1p4/8/2P5/PP4PP/3NR2K b - - 0 38","m":"f6e8 e1e8 g6f8 e8f8","r":421,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o0PKh","f":"3r3k/2q3pp/4Bn2/8/p7/bP6/P1Q2PPP/6K1 w - - 1 24","m":"c2c7 d8d1","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"o0dNp","f":"2R2rk1/b4ppp/p3p3/1p6/1n6/4PB1P/PP1Q1PPq/3R1K2 b - - 0 25","m":"f8c8 d2d8 c8d8 d1d8","r":571,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"o0lr8","f":"2kr1bnr/1pp4p/p1p1qp2/8/3N4/8/PPP2PPP/RNBQ2K1 w - - 0 12","m":"d4e6 d8d1","r":596,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"o1CCY","f":"r2Q2k1/p3Rppp/5q2/8/8/2P4P/PP3PP1/4R1K1 b - - 0 27","m":"a8d8 e7e8 d8e8 e1e8","r":498,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"o1tCw","f":"7k/6pp/2p2p2/2Pp4/1q1P4/1p5P/6PK/R7 b - - 0 35","m":"b3b2 a1a8 b4b8 a8b8","r":418,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"o2A94","f":"2qR2k1/2Q1nppp/p4p2/1pB5/4r3/2P5/PP3P1P/5K2 b - - 5 30","m":"c8d8 c7d8","r":548,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"o2FLM","f":"2r4k/pp1r2pp/8/5p2/8/n1B2P2/P1P3PP/2R1RK2 b - - 8 24","m":"c8c3 e1e8","r":454,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"o2Gdd","f":"4r1k1/pp1b1ppp/2pP4/4r3/1P6/PB4R1/5PPP/3R2K1 w - - 2 24","m":"g3f3 e5e1 d1e1 e8e1","r":435,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o2Vxl","f":"r3r1k1/1b3ppp/p7/1p1q1P2/3bp3/3B3P/PPP1Q1PN/4RR1K b - - 3 24","m":"e4d3 e2e8 a8e8 e1e8","r":558,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"o3sED","f":"r4rk1/pQ4pp/4b3/8/4p3/1P6/P5PP/2R2q1K w - - 2 28","m":"c1f1 f8f1","r":449,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"o3wMf","f":"5r1k/pp4pp/8/5B2/7P/1P2P3/P1P3p1/2KR4 b - - 0 28","m":"f8f5 d1d8 f5f8 d8f8","r":417,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"o47KY","f":"r4rk1/p5pp/b1p5/2b5/2P1Q3/1P4N1/P5PP/R1B2q1K w - - 0 21","m":"g3f1 f8f1","r":489,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"o4CPW","f":"4r1k1/4Rppp/p3p3/Bp4P1/4r2P/P7/1PN5/1K1R4 b - - 0 23","m":"e8e7 d1d8 e7e8 d8e8","r":404,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o4a9c","f":"4b3/B4p1k/p6p/3r2p1/8/7R/P4PPP/6K1 w - - 0 30","m":"h3e3 d5d1 e3e1 d1e1","r":500,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o54eg","f":"6k1/p1Rp1pp1/4p2p/4P3/3P4/1r6/5PPP/6K1 w - - 0 27","m":"c7a7 b3b1","r":529,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"o5ekH","f":"1r2Q2k/6pp/2p2p2/ppqp4/8/P1N5/1PP5/4RK2 b - - 3 40","m":"b8e8 e1e8 c5f8 e8f8","r":518,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o5g6F","f":"1R6/r3ppkp/N5p1/2p5/2n5/4P3/5PPP/6K1 w - - 2 29","m":"a6c5 a7a1 b8b1 a1b1","r":412,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o6OeV","f":"3r4/p2N4/1p3bkp/5pp1/1P6/P3PR2/6PP/7K w - - 2 31","m":"d7f6 d8d1 f3f1 d1f1","r":557,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o6jEP","f":"r5k1/RR3ppp/2p1p1b1/2P5/4P3/3r1P2/4N1PP/6K1 b - - 0 23","m":"a8a7 b7b8 d3d8 b8d8","r":520,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o71HN","f":"1r3r1k/5ppp/6N1/1p1p3q/p2P1Q2/P1P3Pb/BP3R1P/2R3K1 b - - 0 30","m":"f7g6 f4f8 b8f8 f2f8","r":538,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"o7XjB","f":"r3r1k1/BQp2ppp/p2pq3/6b1/P7/5B2/R4PPP/3R2K1 w - - 1 28","m":"f3d5 e6e1 d1e1 e8e1","r":590,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"o87Ki","f":"2r2k2/1bpR4/p4Np1/1p1P4/6p1/3R4/PPP2P1r/1K6 w - - 0 31","m":"f6g4 h2h1 d3d1 h1d1","r":559,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o8ARI","f":"2rQ1k1r/4npq1/1p2p3/2P3P1/5P1p/2b1B3/PPP5/2KR2R1 b - - 2 24","m":"c8d8 d1d8","r":593,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"o8FTa","f":"r1br2k1/1p3ppp/p4b2/2BB4/8/5N2/1P3PPP/1R2R1K1 b - - 0 21","m":"d8d5 e1e8","r":420,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"o8LsK","f":"7k/3q2pp/7r/8/p4P2/N5P1/4R1K1/8 b - - 0 43","m":"d7d6 e2e8 d6f8 e8f8","r":483,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o8tXo","f":"rn1qQ2k/pb4pp/3b4/1ppP4/8/8/PPP2PPP/R3R1K1 b - - 1 20","m":"d8e8 e1e8 d6f8 e8f8","r":468,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"o8wYQ","f":"r2r3k/p5pp/4pp2/2B5/8/1NP1P3/PR2bPPP/6K1 w - - 1 25","m":"b2e2 d8d1 e2e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o8wo0","f":"5rk1/1pp3pp/pb3R1q/8/2B3b1/2Nr1N2/PP3PPP/R5K1 b - - 0 20","m":"g8h8 f6f8","r":479,"t":"backRankMate hangingPiece master mate mateIn1 middlegame oneMove"},{"i":"o96Ho","f":"4r1k1/5ppp/8/P2nP3/2R5/8/6PP/6K1 b - - 0 38","m":"e8e5 c4c8 e5e8 c8e8","r":525,"t":"backRankMate endgame mate mateIn2 short"},{"i":"o9CuR","f":"r2r2k1/pp2ppbp/2n3p1/1B2P3/6R1/2p2N2/PP3PPP/R1B3K1 w - - 0 14","m":"b5c6 d8d1 f3e1 d1e1","r":449,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"o9DMG","f":"3r4/5pkp/1p2p1p1/2p5/P1P1R3/1P3P2/3R1nPP/7K w - - 1 40","m":"d2f2 d8d1 e4e1 d1e1 f2f1 e1f1","r":412,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"o9OtR","f":"4r1k1/3b2pp/ppN2p2/3n4/P2P3B/8/2q2PPP/2Q3K1 w - - 0 25","m":"c1c2 e8e1","r":537,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"o9lBw","f":"5rk1/1p6/8/pP3q2/P1P1Q1b1/8/6PP/R6K w - - 3 30","m":"e4b7 f5f1 a1f1 f8f1","r":577,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"o9zTk","f":"8/2R2p2/1r1n1kp1/3p3p/p2N4/1P2P3/P4PPP/6K1 w - - 0 30","m":"b3a4 b6b1 c7c1 b1c1","r":400,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"oBJzs","f":"8/p4Bpk/7p/8/1r1PP3/2n2R2/P5PP/7K w - - 1 31","m":"f3c3 b4b1 c3c1 b1c1","r":572,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oBOLp","f":"2r3k1/1p3pb1/6p1/p1p2p1p/P1P2P2/Rq2rQ2/1PR3PP/7K w - - 0 26","m":"a3b3 e3e1 f3f1 e1f1","r":549,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oBovS","f":"r3r2k/4qpp1/b4n1p/p7/7Q/2N5/PPP2PPP/R1B2RK1 w - - 4 21","m":"f1d1 e7e1 d1e1 e8e1","r":584,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"oCYMQ","f":"1k1r2nr/ppR3pp/4p3/3p4/5B2/5P1P/P3qP2/2R3K1 b - - 1 21","m":"b8a8 c7c8 d8c8 c1c8","r":486,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"oDYj1","f":"1k2r2r/ppp5/8/3PR2n/6p1/6B1/PP3KP1/4R3 b - - 0 29","m":"h5g3 e5e8 h8e8 e1e8","r":518,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oDjYJ","f":"8/6pp/Pr3k2/4Rp2/3p4/8/4RPPP/6K1 w - - 0 38","m":"e5a5 b6b1 e2e1 b1e1","r":566,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"oE6zF","f":"3rk3/1Q5p/1p2p3/p4p2/4p3/PP6/1BP1nPPP/4R1K1 w - - 0 34","m":"e1e2 d8d1 e2e1 d1e1","r":522,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oF9Dt","f":"r1bqr1k1/1p3ppp/p2p1B2/n7/8/1P1p1N2/P1PP1PPP/R2QR1K1 b - - 0 15","m":"d8f6 e1e8","r":572,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"oFJK0","f":"1r3rk1/8/6Bp/4b3/pppR4/7N/PPP3P1/1K2R3 w - - 1 30","m":"e1e5 f8f1 e5e1 f1e1 d4d1 e1d1","r":584,"t":"backRankMate endgame long mate mateIn3"},{"i":"oFKl3","f":"1br3k1/5ppp/1R2pq2/1p1p4/1P1P3P/P3P1P1/1B3PK1/8 b - - 2 27","m":"c8c2 b6b8 c2c8 b8c8 f6d8 c8d8","r":436,"t":"backRankMate endgame hangingPiece long mate mateIn3"},{"i":"oFgX8","f":"2kr4/ppp3pp/2b1Bp1n/8/8/2B2P2/PPP3PP/2KR4 b - - 2 18","m":"c8b8 d1d8","r":508,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"oFtNU","f":"r7/p1p1Q3/1pnr4/2k2p2/2p5/4R3/PPP3PP/7K w - - 1 25","m":"e7c7 d6d1 e3e1 d1e1","r":410,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oG3Yd","f":"r5k1/3r2Pp/p3q3/2p5/8/2R5/PP3PPP/4R1K1 w - - 0 25","m":"e1e6 d7d1 e6e1 d1e1","r":476,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"oGIoi","f":"3r2k1/1pN2ppp/p1n5/6b1/8/8/PPP2BPP/2K3NR w - - 1 18","m":"c1b1 d8d1","r":513,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"oGM8e","f":"6k1/p4ppp/4p3/5b2/4QK2/1P1r4/P4PPP/2R5 b - - 0 23","m":"f5e4 c1c8 d3d8 c8d8","r":565,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oGYTV","f":"4q1kr/1p3ppp/p4b2/8/QP6/4B3/5PPP/2R1K2R b K - 0 25","m":"e8a4 c1c8 f6d8 c8d8 a4e8 d8e8","r":415,"t":"backRankMate endgame long mate mateIn3"},{"i":"oGlnW","f":"7k/6pp/6r1/8/3P2N1/5r1q/PP1N1P1P/4RR1K b - - 1 29","m":"h3g4 e1e8 f3f8 e8f8","r":545,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oGsiu","f":"2r3k1/5pp1/p4b2/1p1pPP1P/6Q1/2r5/PP6/K1qR4 w - - 2 32","m":"d1c1 c3c1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"oH6nn","f":"1Q6/1N1q1kpp/5p2/3r4/1P2pB2/2P5/P4PPP/R5K1 w - - 3 30","m":"b7c5 d5d1 a1d1 d7d1","r":575,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oHTR7","f":"6k1/1b1p1ppp/1pp5/p7/B7/2P2rP1/PP1K3P/4R3 b - - 3 23","m":"b6b5 e1e8","r":423,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"oHVMS","f":"rb1r2k1/1p3ppp/p3p3/2R5/3Q4/P4B1P/1P3PP1/4K2R b K - 0 20","m":"d8d4 c5c8 d4d8 c8d8","r":503,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oHWtu","f":"2r3k1/R3pp1p/1p1p2p1/3P4/2r5/8/5PPP/1QqR2K1 w - - 1 27","m":"d1c1 c4c1 b1c1 c8c1","r":496,"t":"backRankMate endgame fork mate mateIn2 queenRookEndgame short"},{"i":"oHgkh","f":"3r2k1/1R3ppp/2p5/2P5/5PK1/6P1/rp5P/8 b - - 1 34","m":"d8d5 b7b8 d5d8 b8d8","r":532,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"oI7jS","f":"r1b3k1/pp3ppp/2p1r3/8/2pR1P2/P1P3P1/5P1P/2B2K1R b - - 0 23","m":"b7b6 d4d8 e6e8 d8e8","r":499,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oIqp5","f":"4r1k1/1pp2ppp/3p1Q2/p1bP4/8/1P4R1/P2B2PP/1b2r2K w - - 1 25","m":"d2e1 e8e1 f6f1 e1f1","r":488,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oJ3UO","f":"4r2r/ppkb4/2p4p/3n2p1/4N3/3R4/PPP2PPP/R1B3K1 w - - 7 18","m":"e4c5 e8e1","r":502,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"oJOqH","f":"3r2k1/pp5p/2p1R1p1/5p2/8/P7/1PQ2PPP/3q2K1 w - - 1 33","m":"c2d1 d8d1 e6e1 d1e1","r":419,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oJcOW","f":"5r1k/ppp3p1/7p/3Q2n1/8/2P5/P5PP/3R1q1K w - - 3 35","m":"d1f1 f8f1","r":491,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"oKIyX","f":"5r2/pb5k/1p4pp/4q3/6P1/1BQP4/PPP4P/1K6 w - - 0 27","m":"c3e5 f8f1 e5e1 f1e1","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oL4gr","f":"2k3r1/pbpn4/1p1pR3/3P1Q1r/2P2P1p/2P5/P4KPP/4R3 b - - 0 27","m":"h5f5 e6e8 g8e8 e1e8","r":580,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oLURW","f":"3r1rk1/1p3ppp/pq2p3/8/8/2b1QN2/PP3PPP/R1B3K1 w - - 0 18","m":"e3b6 d8d1 f3e1 d1e1","r":427,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"oLUr6","f":"6k1/1b2rppp/1p2p3/8/3N4/4K3/6BP/2R5 b - - 2 33","m":"b7g2 c1c8 e7e8 c8e8","r":540,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oLYAN","f":"k2Rn1r1/pp2b3/2p4r/4BBp1/1PP4p/P6P/6P1/3R2K1 b - - 2 27","m":"e7d8 d1d8","r":550,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"oLmb5","f":"r2qnr1k/1pp2ppp/p2pB3/8/P3PR1b/2NQB3/1PP2PPP/R5K1 b - - 0 18","m":"f7e6 f4f8","r":563,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"oM1XQ","f":"4k1r1/R1p2p2/1N1p2n1/1P1Pp1q1/4P1bp/1QP4P/1P3PPB/6K1 w - - 1 31","m":"h3g4 g5c1 b3d1 c1d1","r":540,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"oMGoS","f":"1rk1r3/6Rp/p3p1p1/2B5/p7/8/P3RPPP/6K1 w - - 1 27","m":"c5d6 b8b1 e2e1 b1e1","r":503,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oMcBK","f":"2r3k1/p4pp1/b3p2p/3p4/3Q4/1P2P3/P4PPP/1Rq3K1 w - - 2 24","m":"b1c1 c8c1 d4d1 c1d1","r":493,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oMiXk","f":"r2r2k1/1pb2pp1/4pn1p/p1p4P/2PP2PR/2B2N2/PP2RP2/K7 w - - 0 26","m":"d4c5 d8d1","r":479,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"oNUy3","f":"2k2Q1r/pbpp3p/1p5n/3P2p1/2q1P3/6PP/P5BK/R4R2 b - - 1 22","m":"h8f8 f1f8","r":420,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"oNhyQ","f":"4r1k1/5ppp/R7/4N3/2p5/2P4P/PK6/8 b - - 0 28","m":"e8e5 a6a8 e5e8 a8e8","r":549,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"oNxj1","f":"4q1k1/p4ppp/1p6/4Q3/2P4P/1P4P1/P4P2/3R1K2 b - - 0 27","m":"e8e5 d1d8 e5e8 d8e8","r":499,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"oOIdQ","f":"3r4/2k5/P4R2/6np/N5p1/2P5/1P1r1PPP/R5K1 w - - 1 30","m":"a6a7 d2d1 a1d1 d8d1","r":528,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oOMFt","f":"r1b2r1k/ppp3pp/6q1/4p3/8/4PQ2/PPP4P/2KR3R b - - 1 21","m":"f8f3 d1d8 g6e8 d8e8 f3f8 e8f8","r":534,"t":"backRankMate endgame long mate mateIn3"},{"i":"oPskn","f":"1r5k/pq4pp/p4p2/2P1p3/8/B2Q3P/P1P2Pb1/3R2K1 b - - 3 33","m":"g2e4 d3d8 b8d8 d1d8","r":568,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"oQ9Qb","f":"4r2k/1b2R1pp/5p2/1p3n2/5p2/P4P2/5BPP/3R2K1 b - - 0 33","m":"e8e7 d1d8 e7e8 d8e8","r":445,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oQUdg","f":"5r1k/2p3pp/3p4/8/8/P4Q1P/7K/4R3 b - - 0 41","m":"f8f3 e1e8 f3f8 e8f8","r":522,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"oQfYa","f":"2r5/3b3k/8/2r1p2P/1Q1p2p1/6P1/PP1B4/K1q2R2 w - - 1 38","m":"d2c1 c5c1 f1c1 c8c1","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oQnN6","f":"2r2Q1k/6pp/3pp3/3p4/3P3P/2P1R1P1/P3KR2/2q5 b - - 2 40","m":"c8f8 f2f8","r":496,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"oR5kl","f":"3r4/p4ppp/5p2/6Q1/2P5/1kn5/4RPPP/6K1 w - - 2 37","m":"g5g3 d8d1 e2e1 d1e1","r":487,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oRXjd","f":"6k1/5ppp/5n2/R7/1p1p4/P5KP/B1r5/8 b - - 2 39","m":"c2a2 a5a8 f6e8 a8e8","r":583,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oRoLO","f":"6k1/2R2ppp/8/2P2b2/p3Q3/qn2P1BP/3rBPP1/6K1 b - - 0 26","m":"f5e4 c7c8 d2d8 c8d8","r":546,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"oS8Cc","f":"6k1/p4pp1/Prpq3p/8/2P1P3/8/5PPP/3R2K1 w - - 0 27","m":"d1d6 b6b1 d6d1 b1d1","r":492,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"oSJZu","f":"5rk1/1p3pB1/p3p3/2b1P2Q/Pn6/7R/1p4PP/2r2RK1 w - - 3 26","m":"g1h1 c1f1","r":543,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"oSjW8","f":"2r5/3k1ppp/4b3/r5R1/1p1p4/8/1P3PPP/2R3K1 w - - 0 29","m":"g5a5 c8c1","r":507,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"oThlq","f":"8/1pQ5/2p1R2p/2k5/r1np4/8/2B2PPP/6K1 w - - 0 36","m":"c2e4 a4a1 e4b1 a1b1 e6e1 b1e1","r":598,"t":"backRankMate endgame long mate mateIn3"},{"i":"oUUbA","f":"2rR4/2P2p1k/4r1p1/7p/P3q3/8/1Q3PPP/2R3K1 w - - 2 34","m":"d8c8 e4e1 c1e1 e6e1","r":591,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"oUfsP","f":"8/3nr1kp/5pp1/p1R5/P7/1B6/2P2PPP/6K1 w - - 3 31","m":"c5c7 e7e1","r":523,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"oUupg","f":"4r1k1/pp1n1ppb/2p2n1p/3p4/3P3N/2b3B1/PPP2PPP/2RB2K1 w - - 0 19","m":"b2c3 e8e1","r":426,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"oUx4W","f":"5rk1/p1Q3pp/2p5/5p2/2P1p3/qP2P3/P4PPP/3R2K1 w - - 1 20","m":"d1d7 a3c1 d7d1 c1d1","r":556,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oUxIy","f":"4Q2k/pB4pp/1n4b1/5rP1/1P4q1/P1rP4/1B5P/4R2K b - - 1 30","m":"g6e8 e1e8 f5f8 e8f8","r":498,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"oUzGU","f":"2r3k1/5ppp/4p3/8/8/2N1P2P/PR4P1/6K1 b - - 0 26","m":"c8c3 b2b8 c3c8 b8c8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"oUzvN","f":"5rk1/2p2rp1/QpNpp2p/8/3P4/2P5/PP2n1PP/1R1R1q1K w - - 13 30","m":"d1f1 f7f1 b1f1 f8f1","r":595,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"oV6TZ","f":"1r3rk1/6pp/4p3/p1R5/1p6/8/1P4PP/R1B4K w - - 0 26","m":"c5a5 f8f1","r":541,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"oVfoE","f":"1k6/ppp3pp/5n1r/2PQ1K2/6P1/5P2/PP5q/R3R3 b - - 0 31","m":"f6d5 e1e8","r":566,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"oW7y1","f":"r3r1k1/ppp2ppp/2n2q2/3P1b2/2B1p3/P1P2N1P/2P1QPP1/R3R1K1 b - - 0 16","m":"e4f3 e2e8 a8e8 e1e8","r":580,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"oWFlB","f":"6k1/3r1pp1/p3p2p/8/1P2pB2/P3P3/5PPP/2R3K1 w - - 2 27","m":"c1c7 d7d1","r":550,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"oWYwb","f":"4kr2/1p6/p4r2/2P1p3/8/8/PPP3q1/1K4RR w - - 0 37","m":"g1g2 f6f1 h1f1 f8f1","r":403,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"oX1fz","f":"5rk1/5p1p/4pp1b/pN6/Pp2Q3/5P2/RPPrRqPP/7K w - - 5 24","m":"e2f2 d2d1 e4e1 d1e1 f2f1 e1f1","r":553,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"oXV63","f":"3q2k1/5ppp/1Q6/8/3P4/5N2/5PPP/R5K1 b - - 0 26","m":"d8b6 a1a8 b6b8 a8b8","r":518,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oXd98","f":"6k1/5ppp/2q5/2p5/P1P5/2n3P1/1R5P/6Kb b - - 1 37","m":"c3a4 b2b8 c6c8 b8c8","r":537,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oXp86","f":"3r1rk1/ppp1bppp/8/8/2N5/8/PPb2PPP/R1B1R1K1 w - - 4 14","m":"e1e7 d8d1 e7e1 d1e1","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"oXvvq","f":"5rk1/p3n1p1/R1p4p/1p2R3/5p2/1PPr3P/1P3PPB/6K1 w - - 0 29","m":"a6a7 d3d1 e5e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oY7Wg","f":"2r3k1/5ppp/4p3/8/3P2P1/1pR4P/5PK1/R7 b - - 0 30","m":"c8c3 a1a8 c3c8 a8c8","r":409,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"oYuWq","f":"1k1rr3/1b2q2p/p6P/2pP4/Q4p2/3R3B/PPP2PP1/1K5R w - - 2 32","m":"d3b3 e7e1 h1e1 e8e1","r":491,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"oZBZC","f":"2kr3r/ppp3p1/2n2bQp/8/8/2P1B3/PPP2PPP/3q1RK1 w - - 0 19","m":"f1d1 d8d1","r":599,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"oZeVz","f":"8/1b2rk2/p2Q4/8/2pp3P/2N5/PPP5/1K6 w - - 0 41","m":"c3d5 e7e1","r":422,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"oaXZY","f":"k2Q4/pp6/1b6/3pP3/P2n1B1P/6P1/1q3P2/2R2RK1 b - - 0 30","m":"b6d8 c1c8","r":496,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"oag6v","f":"2r3k1/1p4p1/5p1p/p2p4/1b6/4P2P/PP3PPB/3R2K1 w - - 0 36","m":"d1d5 c8c1 d5d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oaxNd","f":"5rk1/1p4p1/3p1r1p/p1p5/2P1P1q1/P2P4/1b2Q1PP/1R5K w - - 0 25","m":"e2g4 f6f1 b1f1 f8f1","r":525,"t":"backRankMate endgame mate mateIn2 short"},{"i":"obf65","f":"5k2/7p/4rp2/p1p5/p5Q1/1b6/1Pp2NPP/R2q3K w - - 8 30","m":"f2d1 e6e1","r":542,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"obxah","f":"2Q2r1k/p5pp/3R4/1p6/5p2/8/P1bR1PPP/q4BK1 b - - 0 27","m":"f8c8 d6d8 c8d8 d2d8","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oc647","f":"2rkr3/p5Q1/4p2p/3p4/Pp6/8/1P4PP/5R1K w - - 0 31","m":"f1f7 c8c1 f7f1 c1f1","r":456,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ocBHi","f":"2r3k1/p1r2ppp/4pn2/R3N3/3P4/4P3/5PPP/5RK1 w - - 5 24","m":"f1a1 c7c1 a1c1 c8c1","r":521,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ocCQo","f":"2b4r/2p2pk1/1p3bpq/p7/Q3R3/2P1P1N1/PP2BPP1/6K1 w - - 9 31","m":"g1f1 h6h1 g3h1 h8h1","r":594,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"ocyLs","f":"8/3r3p/p2NR1pk/1p3p2/2p5/2P5/PP4PP/7K w - - 2 33","m":"d6e8 d7d1 e6e1 d1e1","r":442,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ocz3s","f":"Q4rk1/p4ppp/4p3/2R5/3P4/2R1P2P/5PPK/1q6 b - - 2 28","m":"f8a8 c5c8 a8c8 c3c8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"odluY","f":"8/7k/pp2q2p/5Np1/8/2P5/Pr3PPP/4R1K1 w - - 0 29","m":"e1e6 b2b1 e6e1 b1e1","r":470,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oe1OQ","f":"2kr3r/ppp2p2/5p1p/8/2PR2B1/1b2P1P1/5P1P/2KR4 b - - 2 19","m":"c8b8 d4d8 h8d8 d1d8","r":461,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oe5VX","f":"r4rk1/ppp3pp/4P3/4p3/4p3/1Q6/PPP3PP/R4q1K w - - 2 21","m":"a1f1 f8f1","r":501,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"oekLJ","f":"6k1/p4pp1/1rp1p2p/N7/2P5/P2n4/5PPP/3R2K1 w - - 0 25","m":"d1d3 b6b1 d3d1 b1d1","r":517,"t":"backRankMate endgame mate mateIn2 short"},{"i":"of0kq","f":"1rn1R3/R6p/2Bp2pk/3P1p2/2P5/8/5PPP/6K1 w - - 1 29","m":"a7c7 b8b1 e8e1 b1e1","r":546,"t":"backRankMate endgame mate mateIn2 short"},{"i":"of1w3","f":"2n1r3/3R4/3B1kp1/3p1pbp/3N4/2N5/PPP4P/1K6 w - - 5 37","m":"d6c5 e8e1 c3d1 e1d1","r":456,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"of3eO","f":"3r1rk1/1Q3pp1/7p/p3p3/P7/1PN5/1P3RPP/3q3K w - - 0 22","m":"c3d1 d8d1 f2f1 d1f1","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ogUc2","f":"8/3PRp1k/7n/p1p4p/8/2N5/PPP5/1K4r1 w - - 1 35","m":"c3d1 g1d1","r":472,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"ogyqg","f":"6k1/pp3ppp/8/8/8/1P3P2/P2r1P1P/2R3K1 b - - 0 24","m":"d2d7 c1c8 d7d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ohB4f","f":"1k4r1/ppp5/5p2/4b2p/1P6/P6P/8/1R1R1K2 b - - 0 28","m":"g8g3 d1d8","r":444,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ohBRu","f":"r1b1r2k/pp3pp1/2p4p/4q3/2P1B3/8/PPQ2PPP/R3R1K1 w - - 0 17","m":"e4c6 e5e1 a1e1 e8e1","r":569,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ohEq5","f":"rn1R2k1/1b2bppp/p7/2p5/5n2/2N2N2/PPP2PPP/4R1K1 b - - 0 16","m":"e7d8 e1e8","r":566,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ohGD6","f":"k7/ppr2p1p/8/2Rn4/8/8/P4PPP/6K1 w - - 0 27","m":"c5d5 c7c1 d5d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ohYk3","f":"1k1r3r/1pp2pQp/p1p5/8/8/1P2P3/PBq2PPP/1nR3K1 w - - 0 20","m":"c1c2 d8d1","r":428,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ohssu","f":"5rk1/pp2q1p1/7p/8/2n2r2/2P3Q1/PP1N2PP/4R2K w - - 0 26","m":"e1e7 f4f1 d2f1 f8f1","r":544,"t":"backRankMate endgame master mate mateIn2 sacrifice short"},{"i":"ojS3S","f":"4k1r1/pp2pp1p/2p1b3/3r4/8/Q5B1/5PPP/1R1q2K1 w - - 6 25","m":"b1d1 d5d1","r":436,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ojVd1","f":"1k5r/ppp3p1/8/4p3/2P5/1P2rN2/P2Q1q2/2KR4 b - - 3 42","m":"f2f3 d2d8 h8d8 d1d8","r":553,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"okLzC","f":"3r2k1/p4ppp/1q6/2p3Q1/2P5/1P6/P4PPP/3r1RK1 w - - 0 23","m":"f1d1 d8d1","r":578,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"okSWK","f":"6k1/5ppb/1p2r2p/8/P7/4N1P1/2n2PBP/2R3K1 b - - 3 33","m":"c2e3 c1c8 e6e8 c8e8","r":448,"t":"backRankMate endgame mate mateIn2 short"},{"i":"okY1N","f":"2kr3r/pppqnbp1/7p/8/4R3/P1N2Q2/1PP2PPP/R1B3K1 w - - 0 18","m":"f3f7 d7d1 c3d1 d8d1 e4e1 d1e1","r":473,"t":"backRankMate long mate mateIn3 middlegame sacrifice"},{"i":"okax3","f":"1r3r2/3RRpkp/b1p3p1/8/p7/2P1PB2/P4PPP/6K1 w - - 2 20","m":"f3c6 b8b1 d7d1 b1d1","r":525,"t":"backRankMate endgame mate mateIn2 short"},{"i":"okqNe","f":"rn3Q1k/p5pp/2p1p3/8/PbqPn3/2p1P1N1/6PP/R1B2RK1 b - - 4 21","m":"b4f8 f1f8","r":431,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ol8yO","f":"7k/4r1pp/1p1p4/1P6/1B2n3/P6P/2Q2rP1/1R3RK1 b - - 0 35","m":"f2c2 f1f8","r":540,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"omLHy","f":"r5k1/1p3rpp/p7/4B1Q1/2p1P3/3R4/P5PP/R4q1K w - - 2 25","m":"a1f1 f7f1","r":400,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"omV82","f":"3r2k1/pp3ppp/8/6q1/5N2/4Q3/bP3PPP/4R1K1 b - - 1 22","m":"g5a5 e3e8 d8e8 e1e8","r":482,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"omfRv","f":"1k2r3/ppp5/8/3R4/2P1N1p1/5pPp/PP3P1P/5K2 b - - 0 31","m":"e8e4 d5d8","r":465,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"omk6p","f":"2r3k1/p4ppp/r7/8/8/6P1/PR3P1P/6K1 b - - 0 22","m":"c8c4 b2b8 c4c8 b8c8","r":420,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"omswB","f":"5rk1/R2R1p1p/p5p1/1p6/8/2P5/Pr3PPP/6K1 w - - 0 26","m":"a7a6 b2b1 d7d1 b1d1","r":462,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"omxRU","f":"1rb2rk1/p1qp1ppp/8/R2B4/1p6/1RP1PQ2/5PPP/6K1 w - - 2 24","m":"c3b4 c7c1 f3d1 c1d1","r":566,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"omztI","f":"7k/1pr2Rpp/p7/3R4/8/1K1P4/PP5r/8 b - - 0 37","m":"c7f7 d5d8 f7f8 d8f8","r":585,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"onLb3","f":"r4rk1/6pp/p5p1/1p6/4Q3/1P6/P1P3PP/4Rq1K w - - 1 27","m":"e1f1 f8f1","r":416,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"onPBI","f":"3r1Q1k/p5pp/2p5/3p2q1/8/6N1/PP2b2P/5R1K b - - 3 30","m":"d8f8 f1f8","r":486,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"onQSY","f":"5r1k/2p4p/Q1p3p1/2P5/1P6/8/P1b3PP/5q1K w - - 0 35","m":"a6f1 f8f1","r":456,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"onSSc","f":"7k/2p3pp/3p4/p3P3/4q1P1/1P3r2/PBP4P/2KR3R b - - 0 18","m":"d6e5 d1d8 f3f8 d8f8","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oneLW","f":"3rQ2k/6pp/8/pP6/P2b2P1/6B1/2p1R1KP/3q4 b - - 0 48","m":"d8e8 e2e8","r":499,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"onsEV","f":"1rQ3k1/p4ppp/4p3/4Pq2/8/P7/1PPR2PP/2KR4 b - - 0 23","m":"b8c8 d2d8 c8d8 d1d8","r":451,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"oonPQ","f":"3rQ1k1/p4ppp/8/7q/8/6P1/P4P1P/4R1K1 b - - 1 27","m":"d8e8 e1e8","r":481,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"oopmq","f":"6k1/5ppp/3r2q1/1pQp4/1Pp1r3/2P1P3/5PP1/2R2RK1 b - - 1 38","m":"e4g4 c5c8 d6d8 c8d8","r":432,"t":"backRankMate endgame mate mateIn2 short"},{"i":"opE5J","f":"7k/6pp/8/1p6/5r2/3q3P/4R3/4K3 b - - 9 47","m":"b5b4 e2e8 f4f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"opaXM","f":"3r1rk1/2p2ppp/2p5/8/p1R5/P3B3/2P1nPPP/4R1K1 w - - 1 20","m":"e1e2 d8d1 e2e1 d1e1","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"opaue","f":"r3r1k1/p4ppb/1pp2q1p/3p4/3Pn3/2PNQP2/PPB3PP/R3R1K1 b - - 0 24","m":"e4g5 e3e8 a8e8 e1e8","r":446,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"oprL6","f":"8/1p3R2/1k6/pN5p/2r5/P7/1n3PPP/6K1 w - - 3 35","m":"b5d6 c4c1","r":449,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"opysw","f":"1r4k1/5ppp/4p3/4P3/1P6/R5P1/5PKP/8 b - - 0 32","m":"b8b4 a3a8 b4b8 a8b8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"oqbSh","f":"k2nr3/ppR5/8/2p5/P1P5/1P1qrNP1/3N4/3K4 b - - 1 38","m":"e3f3 c7c8","r":564,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"oqwWU","f":"r2r2k1/p4ppp/5n2/4p3/8/1P1R4/P4PPP/R1B3K1 w - - 1 18","m":"d3e3 d8d1 e3e1 d1e1","r":521,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oqyBK","f":"6k1/3q1ppp/p7/1p2P3/3n1P2/P2p2P1/1P4QP/2B4K b - - 0 25","m":"d4e2 g2a8 d7c8 a8c8","r":594,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oqz7R","f":"1r4k1/p1pbq1pp/2p2p2/2Np4/3P4/2P3Q1/P4PPP/4R1K1 w - - 3 21","m":"e1e7 b8b1 e7e1 b1e1","r":585,"t":"backRankMate endgame mate mateIn2 short"},{"i":"orH1Y","f":"6k1/5ppp/2p5/2Pp4/3P3P/1r2bKn1/R7/2r2B1R b - - 1 31","m":"g3h1 a2a8 b3b8 a8b8","r":489,"t":"backRankMate endgame mate mateIn2 short"},{"i":"orV94","f":"5r1k/1pp3pp/1p1p4/8/4R3/1P3Qq1/P1P3P1/R1B3K1 b - - 0 28","m":"f8f3 e4e8 f3f8 e8f8","r":492,"t":"backRankMate endgame mate mateIn2 short"},{"i":"orZ1O","f":"2kr4/1pp2pp1/p1n1pn1p/2N5/8/Q7/5PPP/2Rq2K1 w - - 4 24","m":"c1d1 d8d1","r":416,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"oriW3","f":"6k1/1p3ppp/p3pB2/8/q7/8/1P2QPPP/3r2K1 w - - 0 27","m":"e2d1 a4d1","r":429,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"ormdU","f":"3r1k2/1p3pp1/8/2n2q2/2N1p1Q1/PpP5/5PPP/6K1 w - - 0 30","m":"g4f5 d8d1","r":517,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"orpXk","f":"4r1k1/1p3ppp/1Qp5/p7/2P1r3/1P6/P4PPP/q4RK1 w - - 0 21","m":"f1a1 e4e1 a1e1 e8e1","r":496,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"os9n4","f":"6k1/1p1b2b1/p2p1p2/1P1PpPpp/P3r3/1B1q4/N1Q3PP/7K w - - 0 36","m":"c2d3 e4e1 d3f1 e1f1","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"osEBT","f":"8/p4k1p/2p2p2/1p6/8/1P6/r4PPP/2R3K1 w - - 0 25","m":"c1c6 a2a1 c6c1 a1c1","r":418,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"osKeZ","f":"2r3k1/5ppp/2R5/3pp3/2n5/5PB1/5KPP/R7 b - - 0 32","m":"c8c6 a1a8 c6c8 a8c8","r":568,"t":"backRankMate endgame mate mateIn2 short"},{"i":"osOfw","f":"4rr1k/4q1p1/p1p2p1p/1p3P1Q/8/1P6/PB2B1PP/3R3K w - - 4 30","m":"e2f3 e7e1 d1e1 e8e1","r":581,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"oslsC","f":"2kr4/2p3p1/p1nr1n1p/1p2p3/1P6/P3BP2/B1R2PPP/5RK1 w - - 2 23","m":"f1c1 d6d1 c1d1 d8d1","r":480,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"otF6d","f":"2r3k1/3r1ppb/p6p/1pBP4/2p5/2P3P1/P4P1P/3RR1K1 b - - 3 25","m":"c8c5 e1e8","r":460,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"otMdx","f":"1k1r4/1ppq2pQ/p4p2/P3p3/8/8/5PPP/R1Rr2K1 w - - 1 27","m":"c1d1 d7d1 a1d1 d8d1","r":419,"t":"backRankMate endgame mate mateIn2 short"},{"i":"otWZd","f":"6k1/5pp1/7p/p2p4/Pr6/8/2P2PPP/3R2K1 w - - 0 33","m":"d1d5 b4b1 d5d1 b1d1","r":477,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"otipN","f":"5r1k/p3p1bp/1pp1q3/3p3Q/3P3B/2P5/PP4PP/5R1K w - - 2 27","m":"f1e1 e6e1 h4e1 f8f1","r":581,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"ouKE5","f":"1k1Q3r/ppp2p2/7p/4P1p1/5p2/2B4P/2P3P1/3R1b1K b - - 2 24","m":"h8d8 d1d8","r":492,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ouLes","f":"2k5/ppp3pp/8/3r3P/8/4bP2/PPP5/2K1B2R w - - 1 31","m":"c1b1 d5d1","r":550,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ouNo2","f":"4r2k/6pp/8/p7/8/5P2/P5P1/1R5K b - - 1 40","m":"e8e2 b1b8 e2e8 b8e8","r":451,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ouQHa","f":"6k1/p2q2p1/1pp1rpNp/3p4/3Pr2N/2P3Q1/PP3PPP/2R3K1 w - - 6 27","m":"h4f5 e4e1 c1e1 e6e1","r":450,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ouu4O","f":"4r2k/1p4pp/p1n5/6r1/2B2R2/B1P1R3/PP5P/7K b - - 0 30","m":"e8e3 f4f8","r":492,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ouyTc","f":"7k/pB4np/6p1/1b2pp2/qP6/4P3/PQ3PPP/1R1r2K1 w - - 0 28","m":"b1d1 a4d1","r":413,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ouyb3","f":"8/1r4bp/R1np1kp1/8/8/7B/5PPP/6K1 w - - 0 34","m":"a6c6 b7b1 c6c1 b1c1","r":561,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ovEIN","f":"2k1r3/ppp2ppp/2pr1n2/8/8/P1P2B2/1Pb2PPP/R1BR2K1 w - - 2 16","m":"d1d6 e8e1","r":543,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ovZvH","f":"Rr4k1/1P3ppp/4p1b1/4P3/2p5/7P/5PP1/6K1 b - - 1 34","m":"g6e4 a8b8","r":432,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"ovehN","f":"r3Q2k/pp4pp/2n5/2p2p2/1P1p4/P2P1Bbb/1BP5/R3R1K1 b - - 1 22","m":"a8e8 e1e8","r":436,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ovqKu","f":"4r3/R5B1/2p3p1/3k2P1/5b1P/2P5/PPP1r3/2K2R2 w - - 3 31","m":"c1b1 e2e1 f1e1 e8e1","r":535,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ovsLi","f":"1nk2r2/1p2n1b1/1PpPb2p/3p4/3P4/1PQ5/1BP3PP/R4q1K w - - 3 24","m":"a1f1 f8f1","r":478,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ovxWw","f":"r5k1/5ppp/4pn2/QB2q3/8/3P1P2/5PKP/2R5 b - - 2 25","m":"a8a5 c1c8 f6e8 c8e8","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ow7aS","f":"4r2k/1p4pp/1p6/8/5P2/2q3PN/P6P/1K1R3R b - - 1 25","m":"e8e2 d1d8 e2e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"owILK","f":"1r2r1k1/ppp1qpp1/3p3p/3b4/3PP3/5Q2/PP3PPP/R3R1K1 w - - 0 18","m":"e4d5 e7e1 a1e1 e8e1","r":450,"t":"backRankMate endgame mate mateIn2 short"},{"i":"owPrv","f":"1k3rQ1/ppp5/2pb4/8/3PR3/2N2qPP/PPP1R2K/8 b - - 0 28","m":"f8g8 e4e8 g8e8 e2e8","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"owQA7","f":"r3r1k1/1p1q1ppp/p1n5/5Q2/3pR3/3P1N1P/PP3PP1/4R1K1 b - - 1 22","m":"d7f5 e4e8 a8e8 e1e8","r":525,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"oweis","f":"4r2k/4r1pp/5p2/1QB1p3/7P/2P2qP1/5P1K/R7 b - - 16 43","m":"e7c7 b5e8","r":518,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"owtHA","f":"2r3k1/P5p1/5pN1/4pP1Q/4P3/8/6PP/R1r4K w - - 3 43","m":"a1c1 c8c1 h5d1 c1d1","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oxIaZ","f":"2r5/p3kp1p/4p1p1/2rb4/1RB5/8/P4PPP/1R4K1 w - - 0 25","m":"c4d5 c5c1 b1c1 c8c1","r":582,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"oxaSM","f":"1r4k1/5ppp/4b3/p2n4/1p4P1/1PbR1P2/P6P/3R2K1 b - - 4 31","m":"d5f4 d3d8 b8d8 d1d8","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oxsiP","f":"7R/2r4p/3r3k/p4Pp1/4Bp2/P2P1P2/1Q4PP/7K w - - 2 39","m":"b2b8 c7c1","r":444,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"oyBQw","f":"2r1r1k1/1bR3p1/1p5p/pP6/3P4/4B3/5PPP/2R3K1 w - - 5 33","m":"c7b7 c8c1 e3c1 e8e1","r":474,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oyISA","f":"r1k2Qq1/1bpp3p/p5p1/1p2n3/8/1PN1P3/P1PP2PP/R4RK1 b - - 3 18","m":"g8f8 f1f8","r":507,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"oyNYI","f":"3r4/pp2n1kp/2pq2p1/4p3/3P4/P6Q/1P3PPP/2RR2K1 w - - 0 26","m":"d4e5 d6d1 c1d1 d8d1","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"oytPK","f":"1k2r3/ppp5/3p4/3n1Rp1/8/8/PPP4P/6K1 b - - 1 32","m":"e8e5 f5f8 e5e8 f8e8","r":563,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ozJNa","f":"rnbqr1k1/1p2bppp/p2p1B2/2pP4/2B5/2N2N2/PPP1QPPP/R3R1K1 b - - 0 12","m":"e7f6 e2e8 d8e8 e1e8","r":532,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ozSbK","f":"k7/pp2Q3/2p1P3/8/1K1P4/PP4r1/2P3r1/3b4 b - - 2 48","m":"d1c2 e7d8","r":546,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ozYMa","f":"r1b4k/pp3rpp/2B5/8/8/2N5/PPP4P/1K1R3R b - - 0 23","m":"b7c6 d1d8 f7f8 d8f8","r":433,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ozsfl","f":"5k2/p1R1p2Q/4pb2/P7/8/8/4qPPP/2Rr2K1 w - - 5 31","m":"c1d1 e2d1","r":461,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"p0rtR","f":"1k2Qr2/ppp2p2/5q1p/6p1/3P4/2P3b1/PP3NP1/4RK2 b - - 3 26","m":"f8e8 e1e8 f6d8 e8d8","r":585,"t":"backRankMate endgame mate mateIn2 short"},{"i":"p1Bl7","f":"6k1/pN3ppp/1rp5/5P2/4P3/Pn4P1/4K1BP/3R4 b - - 0 29","m":"b6b7 d1d8","r":498,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"p1PpN","f":"2r2r2/p3k1p1/4p3/P2p4/2pP4/2P4Q/2B3PP/R4q1K w - - 2 34","m":"a1f1 f8f1","r":421,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"p1Skb","f":"2rn2k1/p4pp1/1p5p/8/8/4P3/P2Q1PPP/6K1 w - - 2 24","m":"d2d7 c8c1 d7d1 c1d1","r":505,"t":"backRankMate endgame mate mateIn2 short"},{"i":"p1mWw","f":"r3Q1k1/pp3ppp/n1p5/8/3q4/1P6/3N1PPP/R3R1K1 b - - 5 21","m":"a8e8 e1e8","r":427,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"p249F","f":"5r1k/6pp/8/4p3/1p1bP3/1P6/2R3KP/8 b - - 4 44","m":"f8f4 c2c8 f4f8 c8f8","r":482,"t":"backRankMate endgame mate mateIn2 short"},{"i":"p2jks","f":"6k1/p4ppp/1p6/8/1P1r4/P5Pb/5PBP/2R3K1 b - - 1 29","m":"h3g2 c1c8 d4d8 c8d8","r":580,"t":"backRankMate endgame mate mateIn2 short"},{"i":"p3hQS","f":"r3r2k/p4Q1p/1p3bp1/3pP3/8/PP6/1P4PP/7K w - - 0 28","m":"e5f6 e8e1","r":494,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"p4XPw","f":"4r1k1/R4p1p/6p1/3Q1p2/P7/4N3/6PP/q6K w - - 1 37","m":"d5d1 a1d1 e3d1 e8e1","r":565,"t":"backRankMate endgame mate mateIn2 short"},{"i":"p4ty5","f":"r4Q1k/p5pp/bp1bp2q/2pp4/8/P2P2N1/1PP2R1P/5R1K b - - 5 30","m":"d6f8 f2f8 a8f8 f1f8","r":452,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"p54Tm","f":"8/5rk1/5q1p/3Q2p1/8/1p6/1P4PP/4R2K w - - 6 47","m":"d5d2 f6f1 e1f1 f7f1","r":496,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"p5Mfi","f":"3r2k1/r4ppp/4b3/8/1p1p1P2/1P1P4/1B2R1PP/1K2R3 b - - 0 27","m":"e6b3 e2e8 d8e8 e1e8","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"p6JCU","f":"r4r1k/1p2n1pp/1pp1nq2/4pP2/4P3/3Q4/PPP3PP/R1B2R1K w - - 0 18","m":"f5e6 f6f1 d3f1 f8f1","r":578,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"p6Rj5","f":"8/7p/3r2pk/4p3/2N5/8/6PP/1R1q3K w - - 0 55","m":"b1d1 d6d1","r":508,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"p6mAD","f":"1r6/1p1r3p/1k2pp2/7R/2R5/1PP5/1P3PPP/6K1 w - - 7 28","m":"h5h6 d7d1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"p6oak","f":"2r3k1/p4ppp/4p3/1pq1nn2/4QB2/PP2P3/5PPP/1R4K1 w - - 0 28","m":"f4e5 c5c1 b1c1 c8c1","r":443,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"p7m1f","f":"3r2k1/5ppp/4p3/p7/8/4B3/3RnPPP/6K1 w - - 2 27","m":"d2e2 d8d1 e2e1 d1e1","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"p7yxS","f":"1r4k1/p1p2ppb/2Bp3p/2r4P/3N1nP1/2P5/P1PK1P2/4R2R b - - 4 23","m":"b8b2 e1e8","r":565,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"p825q","f":"2kr4/pp3ppp/2p1p3/4P3/4Q3/P7/1P4PP/2Rr3K w - - 1 24","m":"c1d1 d8d1 e4e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"p8DNU","f":"r2r2k1/1p3pp1/2p4p/p4P2/P1P5/1P3RQ1/2q3PP/2R4K w - - 5 25","m":"c1c2 d8d1 g3e1 d1e1 f3f1 e1f1","r":433,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"p8btg","f":"2r3k1/5ppp/4p3/R2p4/3P4/4P2P/5PPK/8 b - - 0 35","m":"c8c2 a5a8 c2c8 a8c8","r":426,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"p8tyI","f":"r5k1/1p3ppb/1pp1p2p/4P3/P1P5/5PP1/1B2P2P/3R2K1 b - - 0 21","m":"a8a4 d1d8","r":439,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"p8y7H","f":"3r3k/2p3pp/5p2/R1n1p3/8/2P4P/3N1PP1/6K1 b - - 0 40","m":"d8d2 a5a8 d2d8 a8d8","r":541,"t":"backRankMate endgame mate mateIn2 short"},{"i":"p976M","f":"6k1/3pRbp1/2pr3p/1p6/8/P6R/1P4PP/1B5K w - - 0 37","m":"h3g3 d6d1 e7e1 d1e1","r":482,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"p9Ida","f":"8/6k1/p4np1/8/Rn6/P1r2B2/R5PP/7K w - - 10 41","m":"a3b4 c3c1 f3d1 c1d1","r":417,"t":"backRankMate endgame mate mateIn2 short"},{"i":"p9U85","f":"r1bqnQ1k/pp1n2pp/2p5/3pP1b1/3P4/P1N5/1PP3PP/R4RK1 b - - 3 18","m":"d7f8 f1f8","r":462,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"p9VJR","f":"3r2k1/ppQr1ppp/4qb2/8/1P6/P2RB3/4BPPP/3R2K1 b - - 0 24","m":"d7c7 d3d8 f6d8 d1d8 e6e8 d8e8","r":441,"t":"backRankMate long master mate mateIn3 middlegame"},{"i":"p9s2U","f":"5r1k/pp3Bpp/2p5/8/3R2bN/P1r5/6K1/8 b - - 3 36","m":"f8f7 d4d8 f7f8 d8f8","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pAgOS","f":"2br4/kB2n1p1/5p2/4p2p/2N5/3r4/1R3PPP/1R4K1 w - - 3 28","m":"b7c8 d3d1 b1d1 d8d1","r":508,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pAhvk","f":"7k/R5pp/1r1p4/4p2q/1P6/2PP1bPP/5P1K/5R2 b - - 0 25","m":"d6d5 a7a8 b6b8 a8b8 h5e8 b8e8","r":483,"t":"backRankMate endgame long mate mateIn3"},{"i":"pBOIY","f":"B7/p2R4/2P3pk/8/2r5/8/P4PPP/6K1 w - - 3 37","m":"c6c7 c4c1 d7d1 c1d1","r":451,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pC2Qo","f":"3r2k1/5p1p/1R2b1p1/p7/2p1BB2/2b5/P4PPP/1R1r2K1 w - - 6 26","m":"b1d1 d8d1","r":454,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"pCPNa","f":"r1bk2r1/ppppnR1p/8/6Q1/3PP3/2P5/PP1Nq1PP/R5K1 b - - 4 16","m":"g8g5 f7f8","r":416,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"pCWFQ","f":"1k1r4/ppp3p1/8/8/3Q3P/2NP4/PqPK4/4R3 b - - 0 24","m":"d8d4 e1e8 d4d8 e8d8","r":470,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pD9SM","f":"r4r1k/1bp3p1/1pn1p1B1/p1bpP3/3N4/2PQR3/PP4PP/RN3q1K w - - 2 19","m":"d3f1 f8f1","r":497,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"pDJ3Y","f":"r1br3k/pp4pp/2n2p2/1N1R4/8/5N2/PP3PPP/4R1K1 b - - 0 20","m":"d8d5 e1e8","r":511,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"pDmjS","f":"2r1n2k/1prB2pp/3q4/p2p2P1/3p4/1PP4P/P4QP1/RN3R1K b - - 0 23","m":"c7d7 f2f8 d6f8 f1f8","r":599,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pDszZ","f":"r7/4k2p/4P3/8/2p5/8/2P2PPP/4R1K1 w - - 3 34","m":"e1e4 a8a1 e4e1 a1e1","r":409,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pDxKT","f":"4r1k1/p1p4p/1p1p2p1/3P1p2/2P5/1P3Q2/P2qrPPP/R2R2K1 w - - 1 27","m":"d1d2 e2e1 a1e1 e8e1","r":564,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"pEb9U","f":"2r3k1/5ppp/p7/3R4/5P2/3p4/P4PPP/6K1 w - - 0 27","m":"d5d3 c8c1 d3d1 c1d1","r":465,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pEmST","f":"1r5k/6pp/2Rb3r/pQ2pp2/3P4/4PPPq/PP1B1KNP/7R b - - 2 29","m":"b8b5 c6c8 d6f8 c8f8","r":482,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pEneh","f":"rnbqQ2k/pp1p1ppp/5b2/8/1BB5/P2P1N2/5PPP/4R1K1 b - - 5 18","m":"d8e8 e1e8","r":491,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"pEpnB","f":"2r2Q1k/p5pp/1pP1p3/1P6/P7/3r2PP/3q4/R4RK1 b - - 2 38","m":"c8f8 f1f8","r":472,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"pF32H","f":"2k1r3/2p1r3/2Q5/P2P4/2P5/1P6/5PPP/R5K1 w - - 3 35","m":"a5a6 e7e1 a1e1 e8e1","r":510,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"pFD5Z","f":"r5k1/5p1p/1R4p1/2p5/8/1p2P3/P4PPP/6K1 w - - 0 25","m":"a2b3 a8a1","r":462,"t":"backRankMate endgame master masterVsMaster mate mateIn1 oneMove rookEndgame"},{"i":"pFb3H","f":"2r3k1/pp3ppp/8/6R1/8/P4P2/1P4PP/1Rr4K w - - 1 29","m":"b1c1 c8c1","r":417,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"pGIsy","f":"3Q4/4ppkp/6p1/1r6/N7/8/5PPP/Rr4K1 w - - 1 36","m":"a1b1 b5b1 d8d1 b1d1","r":405,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pGNaA","f":"1R5k/4r1pp/3b1p2/2r5/8/7P/P4PP1/3R2K1 b - - 1 31","m":"d6b8 d1d8 e7e8 d8e8","r":530,"t":"backRankMate endgame fork master mate mateIn2 short"},{"i":"pHLxL","f":"R1b3k1/5ppp/3Pr3/1p1p4/8/7P/1P3PP1/6K1 b - - 1 29","m":"e6d6 a8c8 d6d8 c8d8","r":524,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"pHZgk","f":"8/1p2k1p1/7p/4P3/5P2/8/6PP/3rQq1K w - - 5 36","m":"e1f1 d1f1","r":403,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pI5BI","f":"5r1k/5Qpp/8/2p5/5n2/P7/5PPP/3R1K2 b - - 0 33","m":"f8f7 d1d8 f7f8 d8f8","r":508,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pI9LZ","f":"r3k2r/pp1nppb1/1q1p2pp/1Q6/3P4/4PN1P/P1R1BPP1/2R3K1 b kq - 3 19","m":"b6b5 c2c8 a8c8 c1c8","r":536,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pI9j9","f":"5k2/pp2Nppp/3Pb3/2r1P3/5P2/P2q4/1P4PP/3R3K w - - 2 30","m":"d1d3 c5c1 d3d1 c1d1","r":493,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pIKkc","f":"r5k1/p4ppp/1p3q2/2pQ1b2/8/2P5/P4PPP/3RN1K1 b - - 0 21","m":"a8d8 d5d8 f6d8 d1d8","r":427,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pIRKf","f":"k3r2r/p7/3Q2pp/P2p1p2/1R1P4/4qP2/6PP/R5K1 w - - 3 35","m":"g1h1 e3e1 a1e1 e8e1","r":547,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"pIUBs","f":"r3r1k1/pp3ppp/5N2/4q3/8/2P5/PP2Q1PP/R3R1K1 b - - 0 20","m":"e5f6 e2e8 a8e8 e1e8","r":443,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pIdFE","f":"1k1b4/R6p/4R3/1Np5/8/8/PPP2PrP/1K6 w - - 0 38","m":"a7h7 g2g1 e6e1 g1e1","r":470,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pIfHh","f":"2kr4/p4p2/b2rpp2/2N4p/8/2P5/P4PPP/R2R2K1 w - - 3 22","m":"c5a6 d6d1 a1d1 d8d1","r":539,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pIhXU","f":"2k2r2/pp6/3QP2p/6p1/2p2r2/8/PPP3PP/4R2K w - - 1 31","m":"e6e7 f4f1 e1f1 f8f1","r":534,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"pIvCC","f":"6k1/n4ppp/1p2r3/pP6/P1P1r3/8/R3BPPP/2R3K1 w - - 4 25","m":"e2f3 e4e1 c1e1 e6e1","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pJGP5","f":"3r2k1/5pp1/4p2p/8/8/R7/rP3PPP/6K1 w - - 0 29","m":"a3a2 d8d1","r":415,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"pJIy6","f":"8/3N2kp/p5p1/1p1p1p2/3Pr3/8/5PPP/1R4K1 w - - 1 31","m":"b1b4 e4e1","r":580,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pJZRy","f":"4r1k1/4Rppp/3R4/1pp5/8/5b1P/PP3PP1/6K1 b - - 0 24","m":"e8e7 d6d8 e7e8 d8e8","r":572,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pJs5t","f":"6k1/5pp1/2p5/pp2R3/3rqP2/3N4/1PK5/4N3 b - - 5 36","m":"e4h7 e5e8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pK8a0","f":"6k1/5ppp/8/3p4/r7/4P3/2q2PPP/2R3K1 w - - 0 30","m":"c1c2 a4a1 c2c1 a1c1","r":424,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pKRJK","f":"r1b1r1k1/4qpp1/7p/ppp4Q/4N2R/1BPP4/PP3PPP/R5K1 w - - 2 20","m":"e4d6 e7e1 a1e1 e8e1","r":521,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"pKyH7","f":"r3r1k1/pp3ppp/nb6/1N1p1q2/1P2n3/2PN4/P2BQPPP/R3R1K1 b - - 8 17","m":"e4f2 e2e8 a8e8 e1e8","r":535,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pLQsM","f":"1Q6/p3rnkp/1p4p1/1Bp2p2/3q4/PP6/6PP/3R3K w - - 17 39","m":"d1d4 e7e1 b5f1 e1f1","r":522,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"pLZMa","f":"1r5k/p1p3pp/8/8/4R3/2P3PP/P1r5/4R2K b - - 1 29","m":"c2c3 e4e8 b8e8 e1e8","r":411,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pLctf","f":"r1br2k1/pp2n1pp/5p2/1P2p3/8/P3PN2/1Q3PPP/2R3K1 w - - 1 20","m":"c1c7 d8d1 f3e1 d1e1","r":478,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pLoX4","f":"2rR2k1/q4ppp/8/Prn5/3Q4/2P1PN1P/5PP1/R5K1 b - - 4 26","m":"c8d8 d4d8","r":486,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"pM2Mf","f":"r1b3k1/ppp2ppp/8/8/q3Q3/8/PP3PPP/3R1RK1 b - - 0 16","m":"a4e4 d1d8 e4e8 d8e8","r":524,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pMrdq","f":"1r4k1/1P3ppp/8/R1P5/2r5/4P2P/3K2P1/8 b - - 0 34","m":"b8b7 a5a8 b7b8 a8b8","r":544,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pMtA5","f":"2kr4/pp2p2p/2p1p1p1/4q3/2P5/1B6/PPP2PPP/4R1K1 w - - 0 21","m":"e1e5 d8d1 e5e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pNCHD","f":"3r1k2/Qp3pp1/2pq1n1p/4r3/3P4/8/PP3PPP/R2R2K1 w - - 0 25","m":"d4e5 d6d1 a1d1 d8d1","r":568,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pNlpI","f":"r1R4k/p5pp/P4p2/3p1Q2/2pq4/1p3PP1/7P/1R5K b - - 1 35","m":"a8c8 f5c8","r":545,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pOobr","f":"2r2rk1/5ppp/3R4/3p4/8/1p6/P1PR1PPP/6K1 w - - 0 26","m":"c2b3 c8c1 d2d1 c1d1","r":433,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pP1eR","f":"2r3k1/5ppp/R3p3/1p2p3/4P3/1K6/PP5r/1N6 b - - 7 32","m":"c8c2 a6a8 c2c8 a8c8","r":566,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pPO8K","f":"6k1/1pp1rppp/3Q4/p2P2P1/8/Pr2P2P/1PR5/2K1R3 b - - 0 26","m":"c7d6 c2c8 e7e8 c8e8","r":571,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pPlTk","f":"3q2k1/8/5p1b/Np3P1p/1Pp1p1p1/2P3P1/4Q1PP/7K w - - 0 33","m":"e2e4 d8d1 e4e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pQ6XB","f":"4r1k1/p4pp1/7p/3R4/2p5/P1Q5/1Pq2PPP/6K1 w - - 0 23","m":"c3c2 e8e1","r":491,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"pQItD","f":"5rk1/4R2p/p5p1/2pP4/2PbNB2/8/P5PP/1qQ3K1 w - - 3 29","m":"g1h1 b1c1 f4c1 f8f1","r":557,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pQNCJ","f":"6k1/p1p3pp/2p1p3/8/4p3/2P5/P1Pr1PPP/4R1K1 w - - 2 18","m":"e1e4 d2d1 e4e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pQjHv","f":"6k1/p2r1ppp/4p3/8/1N6/6P1/b4P1P/2R3K1 b - - 2 24","m":"a2b3 c1c8 d7d8 c8d8","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pR1kn","f":"6k1/pQ1r1ppp/1p2p3/1P1rP3/P2P4/8/6PP/2RR2K1 b - - 0 32","m":"d7b7 c1c8 d5d8 c8d8","r":407,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pRSC3","f":"1rb1q2k/3p2pp/3P4/pp2Q3/4P3/1B6/PP4PP/5RK1 b - - 0 23","m":"e8e5 f1f8","r":415,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"pRSQi","f":"5q1k/6pp/p7/1pp5/8/5Q2/PP3bPP/4R2K b - - 1 28","m":"f8f3 e1e8 f3f8 e8f8","r":492,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pSTPJ","f":"2r5/1p1Qp1kp/2r2pp1/p7/8/4P3/3P1PPP/Rq4K1 w - - 0 28","m":"a1b1 c6c1 b1c1 c8c1","r":468,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"pSTcC","f":"2r5/p4pkp/4p3/5p2/3P4/8/P4PPP/3R2K1 w - - 1 24","m":"d1d2 c8c1 d2d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pSs6l","f":"1r4k1/6pp/4p3/p1Pp4/q1bPp3/Q3P3/3B1PPP/6K1 w - - 0 31","m":"a3a4 b8b1 d2c1 b1c1 a4d1 c1d1","r":480,"t":"backRankMate endgame long mate mateIn3"},{"i":"pTKQy","f":"2kr4/1pp5/p1n3R1/6p1/1P3p1p/P6P/5PPB/2Rr2K1 w - - 2 28","m":"c1d1 d8d1","r":412,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pTlCH","f":"3q1rk1/r4ppp/pp1B4/2pR2bb/2P5/1P3P2/P3Q1PP/4R1K1 b - - 0 20","m":"f8e8 e2e8 d8e8 e1e8","r":548,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pTpru","f":"5r1k/p4Qpp/1p6/6pn/4P3/8/PP3PPP/3R2K1 b - - 0 24","m":"f8f7 d1d8 f7f8 d8f8","r":521,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pUa89","f":"5rk1/pp5p/6p1/2pr4/8/2P3P1/PPP3P1/1K1R4 w - - 0 23","m":"d1d5 f8f1 d5d1 f1d1","r":502,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pVRQR","f":"4r1k1/3bbppp/2pp4/8/2qN4/2P1QPNP/6P1/4R1K1 b - - 2 25","m":"e7f6 e3e8 d7e8 e1e8","r":538,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pVZuK","f":"r2r3k/ppp1R2p/6pb/8/8/1Q3P1P/PPP3P1/2K5 w - - 1 20","m":"c1b1 d8d1","r":483,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pVepa","f":"2r1k2r/3p1p2/p3p3/1p2Pp2/1b3P1P/8/PP3B2/K1qQ1BR1 w k - 1 26","m":"d1c1 c8c1","r":408,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"pVqC7","f":"1r2R2k/p5pp/1r5q/1Q3p2/2pP4/P1P5/2P2PPP/R5K1 b - - 2 27","m":"b8e8 b5e8","r":423,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pW0e6","f":"3r2k1/1pR2ppp/p2Bp3/3p4/8/1P6/P4PPP/6K1 b - - 0 24","m":"d8d6 c7c8 d6d8 c8d8","r":479,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pWKdN","f":"2r1r1k1/pp3p1p/3P1Rn1/2PR4/8/1B6/P5PP/7K w - - 3 32","m":"d6d7 e8e1 f6f1 e1f1","r":463,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pWNIy","f":"4r1k1/pp3ppp/2p1r3/3n2q1/3P4/P4Q2/1P1B1PPP/R5K1 w - - 0 22","m":"d2g5 e6e1 a1e1 e8e1","r":411,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pWWkS","f":"B5k1/p4p1p/6p1/2p5/3bQP2/8/P5PP/1r2Rq1K w - - 4 29","m":"e1f1 b1f1","r":455,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pWtxr","f":"4r1k1/1b3pp1/1Qp2n1p/8/8/2P2BB1/5PPP/3Rq1K1 w - - 1 25","m":"d1e1 e8e1","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"pWvkz","f":"1r2nk2/p1p2p2/2pp4/2P3p1/8/2Pb2B1/P4PPP/3R2K1 w - - 0 23","m":"d1d3 b8b1 d3d1 b1d1","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pXHGN","f":"4r2k/p3r1pp/1p1p2b1/3B1pq1/P1Pb4/1P4QR/6PP/3R3K w - - 0 33","m":"g3g5 e7e1 d1e1 e8e1","r":522,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pXebZ","f":"2kr3r/2pq4/p1b1p2p/3P2p1/4B3/8/PR2Q1PP/3R3K w - - 0 27","m":"d5c6 d7d1 e2d1 d8d1","r":479,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pXgw8","f":"5rk1/1pp3pp/p4qb1/2N1p3/2R5/1P1P4/1PP3PP/4Q2K w - - 7 24","m":"c5d7 f6f1 e1f1 f8f1","r":539,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pYPjW","f":"r4rk1/p1p3pp/8/3p4/2P1R3/1P6/P5PP/RN1Q1q1K w - - 2 20","m":"d1f1 f8f1","r":560,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pYpfC","f":"6k1/2q2ppp/4p3/3pPn2/2p5/5N1P/5PP1/1Q4K1 b - - 0 28","m":"c7a5 b1b8 a5d8 b8d8","r":401,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pYsu1","f":"r5k1/pp3ppp/2p4q/3r4/4R1b1/3B4/PPQ2PPP/4R1K1 b - - 2 19","m":"g4f5 e4e8 a8e8 e1e8","r":572,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pZYbE","f":"2r3k1/5ppp/3R4/5P2/1p2P3/6PP/1Pr5/3R2K1 b - - 0 33","m":"c2b2 d6d8 c8d8 d1d8","r":507,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pZdBJ","f":"4r2k/p1p2pp1/2p4p/3q4/5P2/1P1Q1R2/P1P3PP/7K w - - 0 24","m":"d3d5 e8e1 f3f1 e1f1","r":578,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"pZtev","f":"r1r3k1/p4pp1/4p2p/3pP3/PR1Q1B2/P7/2q2PPP/5RK1 w - - 1 22","m":"f1c1 c2c1 f4c1 c8c1 d4d1 c1d1","r":595,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"paEU9","f":"2r1Q2k/ppr3pp/8/q2p4/Pb1P4/1PP5/5PPP/1N2R1K1 b - - 2 23","m":"c8e8 e1e8 b4f8 e8f8","r":577,"t":"backRankMate endgame mate mateIn2 short"},{"i":"paL79","f":"3r4/Rp4pp/4pbk1/8/1PP5/8/1P2RPPP/6K1 w - - 1 26","m":"a7b7 d8d1 e2e1 d1e1","r":505,"t":"backRankMate endgame mate mateIn2 short"},{"i":"paTJd","f":"3r3k/pp4pp/2p4n/4Q3/PPP5/8/5PPP/3r1RK1 w - - 0 27","m":"f1d1 d8d1 e5e1 d1e1","r":552,"t":"backRankMate endgame mate mateIn2 short"},{"i":"paZnX","f":"6rk/1p1q1Q1p/p4p2/8/8/8/PPP4P/1K6 w - - 0 30","m":"f7d7 g8g1 d7d1 g1d1","r":474,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"paoaS","f":"3r2k1/5ppp/1R6/1P1Bp3/8/6P1/5P1P/6K1 b - - 0 30","m":"d8d5 b6b8 d5d8 b8d8","r":504,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"papwX","f":"5rk1/p2Q2pp/1p6/3P4/8/P7/2P2qPP/R5K1 w - - 2 24","m":"g1h1 f2f1 a1f1 f8f1","r":532,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"paxhb","f":"r1b1r1k1/p1p2ppp/2p5/6B1/4B3/2P5/P1P3PP/2KR3R b - - 2 14","m":"e8e4 d1d8 e4e8 d8e8","r":545,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pbIXv","f":"1rR3k1/5ppp/8/p7/P2r4/8/1P3PPP/2R3K1 b - - 1 25","m":"b8c8 c1c8 d4d8 c8d8","r":523,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pd6DB","f":"5rk1/p4rp1/4p2p/3p4/4p1Q1/1N6/6PP/qR5K w - - 0 31","m":"b1a1 f7f1 a1f1 f8f1","r":412,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pdwK0","f":"r2r2k1/1p3ppp/1np5/p1Q1p3/4q3/2P5/PP3PPP/R1B1R1K1 w - - 0 17","m":"e1e4 d8d1 e4e1 d1e1","r":515,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pe5ig","f":"3q3k/6pp/p2p2n1/1p4Q1/8/2P3P1/PP3P1P/R3R1K1 b - - 0 29","m":"d8g5 e1e8 g6f8 e8f8","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"peL93","f":"1kr5/p6Q/p3b3/n3qp2/3p4/P7/1P3PPP/4R1K1 w - - 0 27","m":"e1e5 c8c1 e5e1 c1e1","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"penfh","f":"2k1r2r/p1p1Qppp/2pp1n2/8/3P4/2N5/PPP3PP/R1B4K w - - 1 16","m":"e7f7 e8e1","r":489,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"pf8Od","f":"2k3r1/p1p5/1p2n3/4N2p/3P2P1/3R1P2/PPP5/1K6 w - - 0 27","m":"g4h5 g8g1 d3d1 g1d1","r":547,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pfGQG","f":"r1br2k1/ppq2ppp/2n1pb2/2pP4/P1B5/2P2N2/2PBQPPP/R3R1K1 b - - 0 14","m":"e6d5 e2e8 d8e8 e1e8","r":531,"t":"backRankMate master mate mateIn2 middlegame sacrifice short"},{"i":"pfwtz","f":"Q5k1/5ppp/4bb2/1p2p3/1Pp1P3/2q2N1P/5PP1/6K1 b - - 1 28","m":"e6c8 a8c8 f6d8 c8d8","r":472,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"pg3HU","f":"2kr4/pp3ppp/8/1Np5/8/2P5/P1R1rPPP/6K1 w - - 0 19","m":"c2e2 d8d1 e2e1 d1e1","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pgNRc","f":"4n1k1/5ppp/8/3p4/8/3P1N1P/r4PP1/1R4K1 b - - 0 24","m":"e8f6 b1b8 f6e8 b8e8","r":484,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pgn0O","f":"3k4/R7/4p3/8/p1rP4/B7/5PPP/6K1 w - - 4 45","m":"a3c5 c4c1","r":420,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ph7CX","f":"3rk1r1/pQp2pPp/4b3/8/2p5/8/PPP3PP/RK1q3R w - - 2 18","m":"h1d1 d8d1","r":495,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"phAkB","f":"6k1/1p3p1p/pR4p1/3P4/2r5/8/P5PP/7K w - - 0 37","m":"b6b7 c4c1","r":453,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"phLmT","f":"rn1q2k1/ppp2ppp/5nb1/3p2P1/3P1b2/2PB1P2/PP2Q2P/RN2R1K1 b - - 0 13","m":"f6h5 e2e8 d8e8 e1e8","r":504,"t":"backRankMate mate mateIn2 opening short"},{"i":"phSrU","f":"3r1bk1/pp5p/2p1q1p1/8/5B2/8/1P4PP/1B2R2K w - - 0 26","m":"e1e6 d8d1 e6e1 d1e1","r":549,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"phSww","f":"6k1/5p1p/2P1r1p1/1p3b2/8/Pp3N2/1P1R1PPP/6K1 w - - 3 26","m":"f3d4 e6e1","r":452,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"phrmf","f":"r1bqQ2k/pp4pp/3b4/2p5/8/2NP4/PPP3PP/4R1K1 b - - 5 21","m":"d8e8 e1e8 d6f8 e8f8","r":480,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pi07S","f":"7k/3n2pp/p4p2/1p2pPP1/1P5P/1P6/2Rp1K2/4N3 b - - 0 33","m":"d2d1q c2c8 d7f8 c8f8","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pik5a","f":"6k1/pr3ppp/8/5p2/4r3/P3B2P/1P3PP1/3R2K1 b - - 1 25","m":"a7a6 d1d8 e4e8 d8e8","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pjCCs","f":"2kr2nr/ppp3p1/4R2p/8/1b6/8/PPP2PPP/RNB3K1 w - - 1 16","m":"c2c3 d8d1 e6e1 d1e1","r":483,"t":"backRankMate fork mate mateIn2 middlegame short"},{"i":"pjR8D","f":"2kbR3/1R6/6p1/3B1b2/2P5/3r4/6PP/7K w - - 10 37","m":"b7b5 d3d1 e8e1 d1e1","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pjUNi","f":"3r3r/1pkq1pQ1/p1p4p/8/2B2b2/8/PPP2PPP/2KR3R w - - 1 21","m":"c1b1 d7d1 h1d1 d8d1","r":559,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pjXUW","f":"r1b1r1k1/ppp2ppp/2n2n2/3p4/8/1BN2P2/PPPP1bPP/R1B2R1K w - - 0 14","m":"f1f2 e8e1 f2f1 e1f1","r":567,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pjzIE","f":"4r2k/5Q2/5pp1/6b1/8/4r3/6PP/3R3K w - - 0 43","m":"f7g6 e3e1 d1e1 e8e1","r":564,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"pjzNu","f":"5r1k/6pp/2p5/1q1p1Q2/3P4/7P/PP4P1/4R1K1 b - - 0 26","m":"f8f5 e1e8 f5f8 e8f8","r":439,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"pktE8","f":"rn5k/p3rPpp/b1p5/2P5/3P4/P3R3/3N1PPP/R5K1 b - - 0 22","m":"e7f7 e3e8 f7f8 e8f8","r":456,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pl1q9","f":"5r2/1Q6/p2p2pk/2pP3p/2Pb4/1P6/P5PP/2R2q1K w - - 3 32","m":"c1f1 f8f1","r":509,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"plSos","f":"3r2k1/p5p1/4q1Np/1p1r4/8/1P4Q1/P4PPP/b3R1K1 w - - 0 23","m":"e1e6 d5d1 e6e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"plrXc","f":"6k1/3R2p1/4pp1p/3nP3/3P4/5N2/r4PPP/6K1 w - - 0 33","m":"e5f6 a2a1 f3e1 a1e1","r":570,"t":"backRankMate endgame mate mateIn2 short"},{"i":"plraQ","f":"1k5q/pppr1p2/6p1/8/8/6PP/P4PK1/4RR2 b - - 1 29","m":"h8c3 e1e8 d7d8 e8d8","r":403,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"pm0eZ","f":"r3r1k1/p1p2pp1/2Rb3p/5b2/8/6B1/PPP2PPP/RN4K1 w - - 1 18","m":"g3d6 e8e1","r":560,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"pmW9s","f":"3r2k1/5p1p/pb4p1/8/2Q1P3/PP6/6PP/2Rq3K w - - 2 33","m":"c1d1 d8d1 c4f1 d1f1","r":468,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pmkNy","f":"8/5R2/6k1/2r4p/1N6/4R3/P4PPP/6K1 w - - 2 51","m":"f7f4 c5c1 e3e1 c1e1","r":547,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pmuMI","f":"2rQ2k1/qb3ppp/p3pn2/2n5/Pp6/5NP1/1P3PBP/2RR2K1 b - - 5 23","m":"c8d8 d1d8 f6e8 d8e8","r":454,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pmxwh","f":"6k1/p2B1ppp/1p2q3/1Pp5/P1np1P2/5QP1/1B3PKP/8 b - - 0 31","m":"e6d7 f3a8 d7c8 a8c8","r":585,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pnPuP","f":"1r4k1/5ppp/4p3/p3P3/2r2P2/1P6/P4RPP/7K w - - 0 25","m":"b3c4 b8b1 f2f1 b1f1","r":489,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"po6He","f":"6k1/pp2Rppp/8/8/8/1P2KP2/P1r3PP/8 b - - 3 30","m":"c2a2 e7e8","r":529,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"poHVP","f":"1k1r4/p4R2/2p1P3/4n3/8/6Q1/PP4PP/R2q3K w - - 2 30","m":"a1d1 d8d1 g3e1 d1e1 f7f1 e1f1","r":424,"t":"backRankMate endgame long mate mateIn3"},{"i":"poPXh","f":"r2Q3k/pp4pp/6q1/4p3/8/5P2/PP3P1P/3R3K b - - 1 22","m":"a8d8 d1d8 g6e8 d8e8","r":467,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"pokT3","f":"3rr1k1/ppp2pb1/2n2npp/8/2P5/PPNP1B2/1BQ2PPP/4qRK1 w - - 0 16","m":"f1e1 e8e1","r":566,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"pp3Tp","f":"3Q2k1/5ppp/p4q2/n7/8/2P5/P1PR1PP1/2K1R3 b - - 0 24","m":"f6d8 d2d8","r":585,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pp9D5","f":"rr3Q1k/p5pp/3p4/6q1/2P2R2/8/PP4PP/5R1K b - - 2 22","m":"b8f8 f4f8 a8f8 f1f8","r":433,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ppMMD","f":"Q4rk1/5ppp/8/4R3/1PP5/P6P/3q1PP1/4R1K1 b - - 0 31","m":"f8a8 e5e8 a8e8 e1e8","r":533,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ppmse","f":"rQ5k/p4Rnp/1p4p1/2pP4/2P1P3/P1q3N1/6PP/5RK1 b - - 0 24","m":"a8b8 f7f8 b8f8 f1f8","r":462,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"ppvmN","f":"2r3k1/R4ppp/8/2R5/8/3rBK2/3b1PPP/8 b - - 0 28","m":"c8c5 a7a8 c5c8 a8c8 d3d8 c8d8","r":424,"t":"backRankMate endgame long mate mateIn3"},{"i":"pqP7K","f":"2R1r2k/5Qpp/8/p7/Pp1qp3/8/6PP/5R1K b - - 0 30","m":"e8c8 f7f8 c8f8 f1f8","r":563,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"pqP7V","f":"r3k3/1p2nr1p/p5b1/2p1R1Q1/P7/1P1P4/2P3PP/4Rq1K w q - 2 24","m":"e1f1 f7f1","r":434,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"pqdSt","f":"5rk1/pp1b1ppp/1q2p3/3pP3/1P6/P1Q5/5PPP/2R3K1 b - - 0 21","m":"f8c8 c3c8 d7c8 c1c8 b6d8 c8d8","r":423,"t":"backRankMate endgame long mate mateIn3"},{"i":"pr1Ak","f":"r1r3k1/5ppp/5b2/p1Bp1P2/3p2P1/1P3K2/2P1R2P/4R3 b - - 0 26","m":"c8c5 e2e8 a8e8 e1e8","r":403,"t":"backRankMate endgame mate mateIn2 short"},{"i":"prMix","f":"r1b1r2k/1p2Nppp/p7/2n1P3/6p1/8/PPP3BP/2KRR3 b - - 5 20","m":"e8e7 d1d8 e7e8 d8e8","r":525,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"prPq0","f":"1Q4kr/2NnBppp/B7/6P1/4P3/8/qPP4P/2KR4 b - - 0 25","m":"d7b8 d1d8","r":521,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"prTj6","f":"5r2/4k3/1prNp1p1/3pP1b1/1p1P4/2P1P3/6PP/1Q5K w - - 0 35","m":"b1b4 f8f1","r":561,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"prfhy","f":"3r2k1/1p3pp1/p1p2q1p/4P3/8/P1RrP3/1P3PPP/2R3K1 w - - 0 23","m":"e5f6 d3d1 c1d1 d8d1","r":576,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"prqgS","f":"2r3k1/5ppb/1R2p2p/3p4/3P4/PN4P1/1P3nBP/K7 b - - 0 31","m":"c8c2 b6b8 c2c8 b8c8","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ps7hY","f":"2r5/2P3kp/1P2Qpp1/2Rp4/3r4/8/5PPP/2Rq2K1 w - - 1 43","m":"c1d1 d4d1 e6e1 d1e1","r":558,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"psdly","f":"2kr4/5p1p/1p6/p7/4P3/4b1B1/PPP3PP/2KR4 w - - 2 21","m":"c1b1 d8d1","r":570,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"ptCWT","f":"8/1R6/r3B3/4R3/1P3k1p/8/2P2PPP/6K1 w - - 3 41","m":"b7b5 a6a1 e5e1 a1e1","r":471,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ptP2R","f":"5r1k/6pp/7r/3p2q1/2pP4/4PRP1/1Q5P/5RK1 b - - 0 35","m":"f8e8 f3f8 e8f8 f1f8","r":534,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"ptSLv","f":"6k1/p4pp1/1b5p/1p3b2/7N/6BP/r4PP1/2R3K1 b - - 1 26","m":"f5h7 c1c8 b6d8 c8d8","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pte7x","f":"r5k1/1p4pp/4bn2/pPP2p2/3r4/8/P4PPP/RN2R1K1 w - - 0 21","m":"e1e6 d4d1 e6e1 d1e1","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ptkkj","f":"8/6k1/p6p/3P2p1/4q3/8/PPr2PPP/4R1K1 w - - 0 32","m":"e1e4 c2c1 e4e1 c1e1","r":402,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"pu35r","f":"8/RP5p/8/2B1p3/4kp2/1rP5/4NPPP/6K1 w - - 0 37","m":"c5d6 b3b1 e2c1 b1c1","r":467,"t":"backRankMate endgame mate mateIn2 short"},{"i":"puuEr","f":"4r1k1/5pp1/p4n1p/1pp1q3/8/2P5/PPQB1PPP/R5K1 w - - 0 25","m":"a1e1 e5e1 d2e1 e8e1","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pv9Dz","f":"r2Q3k/p5pp/q4p2/8/7B/1N3N1P/P3rPP1/3R2K1 b - - 2 25","m":"a8d8 d1d8 e2e8 d8e8","r":582,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pvKs1","f":"6k1/pR3ppp/1bp5/8/8/1N1K4/PPP2rP1/8 b - - 4 31","m":"f2g2 b7b8 b6d8 b8d8","r":540,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pw4cu","f":"4r1k1/p2r2pp/1p3p2/qb1P1N2/4P1Q1/8/P2R2PP/4R2K w - - 12 31","m":"d2c2 a5e1","r":569,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"pwHtJ","f":"5rk1/pp4p1/7p/3pR3/2p5/2P5/PPQN2PP/5q1K w - - 1 26","m":"d2f1 f8f1","r":418,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pwJQq","f":"1r3r1k/6pp/2p1p3/p1pnPpq1/4N3/PP1P1Q1P/2P3P1/R4RK1 b - - 1 19","m":"f5e4 f3f8 b8f8 f1f8","r":553,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pwZqd","f":"2Q4k/1b4pp/p2p3b/3P1r2/5p2/1P6/P4KPB/2R5 b - - 1 38","m":"b7c8 c1c8 f5f8 c8f8","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pwj2O","f":"6rk/p1R2p1p/3rB3/5p2/4p3/8/PP3P1P/K2R4 w - - 0 27","m":"d1d6 g8g1 d6d1 g1d1 c7c1 d1c1","r":475,"t":"backRankMate endgame long mate mateIn3"},{"i":"pwzZN","f":"r3r1k1/1pp2ppp/p2pb3/8/2P2n2/4RNNP/PP3PP1/4R1K1 b - - 2 27","m":"e6c4 e3e8 a8e8 e1e8","r":537,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"pxLvX","f":"4r1k1/1p4p1/p4p2/3p1P1p/8/1P3N2/P4NPP/4r1K1 w - - 0 32","m":"f3e1 e8e1","r":420,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"pxP2A","f":"3r2k1/5p1p/p5p1/8/P1N5/1P6/2P1q1PP/4R2K w - - 0 31","m":"e1e2 d8d1 e2e1 d1e1","r":452,"t":"backRankMate endgame mate mateIn2 short"},{"i":"py2cb","f":"1k2rr2/ppp5/3p1N2/4p2Q/4P3/2P1b1P1/PP5P/K2R1n2 b - - 1 31","m":"f8f6 h5e8","r":514,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"pyQZU","f":"3Qr2k/6pp/5q2/4R3/1p6/6P1/7P/4R1K1 b - - 0 41","m":"f6d8 e5e8 d8e8 e1e8","r":518,"t":"backRankMate endgame fork mate mateIn2 queenRookEndgame short"},{"i":"pydQ3","f":"B3r1k1/3R1ppp/p7/4b3/8/1q2B1P1/5PKP/3R4 b - - 0 31","m":"e8a8 d7d8 a8d8 d1d8","r":520,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pyu98","f":"4rn2/1p3pkp/p1p1qpp1/8/3P1Q2/1PP2N2/1P3PPP/R5K1 w - - 1 20","m":"a1e1 e6e1 f3e1 e8e1","r":505,"t":"backRankMate endgame mate mateIn2 short"},{"i":"pz4Vf","f":"4r1k1/pp3ppp/3p1b2/3P4/3p4/1P3P2/P2PB1PP/2R3K1 b - - 0 23","m":"e8e2 c1c8 f6d8 c8d8 e2e8 d8e8","r":422,"t":"backRankMate endgame long mate mateIn3"},{"i":"pz6Hd","f":"2q2Q1k/3b2pp/p2p2r1/2p5/4P1N1/PP5P/2P3P1/5RK1 b - - 6 34","m":"c8f8 f1f8","r":435,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"pz7bU","f":"2r3k1/6p1/p1b1p2p/7P/2P3q1/2B5/PPQ2P1R/K2r4 w - - 0 33","m":"c2d1 g4d1","r":463,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"pzwg8","f":"3r2k1/1pbq1ppp/p1p2n2/2P1p3/1P2P3/P3QB2/1B3PPP/5RK1 w - - 3 21","m":"f1d1 d7d1 f3d1 d8d1 e3e1 d1e1","r":560,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"q04Rc","f":"2r2bk1/5pp1/8/B3P2p/3Q4/3P2N1/1P3PPP/6K1 w - - 0 29","m":"g3h5 c8c1 a5e1 c1e1","r":477,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q0VJ5","f":"4r1k1/pB1brppp/8/1p6/1Pn5/4B3/P4PPP/R3R1K1 w - - 3 28","m":"e3c5 e7e1 a1e1 e8e1","r":535,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"q15sy","f":"2r3k1/1q2Nppp/1p6/1p1p4/3P4/B1R1PP2/6PP/6K1 b - - 1 28","m":"b7e7 c3c8 e7d8 c8d8","r":505,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"q1sm1","f":"2r5/pp4pp/3Pkp2/8/8/1P2P3/P4PPP/3R2K1 w - - 3 27","m":"d1d2 c8c1 d2d1 c1d1","r":516,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"q2RTO","f":"3n4/2p2p1k/3q2pp/2p5/P2NQ3/2P5/1P4PP/7K w - - 0 28","m":"d4b5 d6d1 e4e1 d1e1","r":586,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q2qk6","f":"8/r5bk/1R6/4p1p1/4Pp2/1Br5/5PPP/2R3K1 w - - 0 30","m":"c1c3 a7a1 c3c1 a1c1 b3d1 c1d1","r":521,"t":"backRankMate endgame long mate mateIn3"},{"i":"q2zBQ","f":"4r1k1/p5pp/Qp2q3/5p2/8/2P5/PP3PPP/R5K1 w - - 0 27","m":"a6a7 e6e1 a1e1 e8e1","r":530,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"q3FzI","f":"3r2k1/ppp2ppp/8/1B6/7q/1PK5/P1PQ2PP/4R3 b - - 0 20","m":"d8d2 e1e8","r":530,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"q3HgU","f":"2r2Q1k/pbq3pp/1p1pB3/3P4/2P5/7P/PP4P1/R4RK1 b - - 0 22","m":"c8f8 f1f8","r":414,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"q3JSo","f":"3r4/6pk/2N4p/p7/8/1P3P2/PPq3PP/K1R5 w - - 0 32","m":"c1c2 d8d1 c2c1 d1c1","r":412,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q3SWJ","f":"6k1/pp3ppp/2p5/8/2P5/2P1r1PP/P3QPK1/3R4 b - - 0 27","m":"e3e2 d1d8 e2e8 d8e8","r":409,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"q3kE0","f":"4r3/pp1n3R/2p3k1/3p4/8/2NP4/PPP2P2/1K6 w - - 5 28","m":"h7d7 e8e1 c3d1 e1d1","r":587,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q3r24","f":"6k1/pR3ppp/2p5/8/r7/1KP4P/3r4/7R b - - 3 32","m":"a4a2 b7b8 d2d8 b8d8","r":584,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"q4RqC","f":"r5k1/1p3ppp/4p3/2P1P3/1P2p3/8/5PPP/2R3K1 w - - 0 25","m":"c1c4 a8a1 c4c1 a1c1","r":493,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"q4j5V","f":"4r1k1/pp2rp1p/2pp4/5Q1p/2P5/1P6/P4PPP/3Rq1KR w - - 3 25","m":"d1e1 e7e1","r":494,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"q4lf1","f":"1rQ3k1/p2R1ppp/4p3/4q3/8/2P2P2/P3BP1P/K2R4 b - - 0 24","m":"b8c8 d7d8 c8d8 d1d8","r":506,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q4loI","f":"6k1/4rppp/P7/1B1p4/2p5/8/5qPP/5R1K w - - 0 32","m":"f1f2 e7e1 f2f1 e1f1","r":545,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q5mj1","f":"rn2r1k1/pp2Bppp/2p1b3/8/8/P4N2/1PP2PPP/2KR1B1R b - - 0 15","m":"e8e7 d1d8 e7e8 d8e8","r":511,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"q5x97","f":"k2q3r/pp3ppp/8/3R4/1b3B2/3P4/PPQ2P1P/2RK4 b - - 0 22","m":"d8d5 c2c8 h8c8 c1c8","r":456,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"q6ROS","f":"k2r4/pp6/4p1R1/2n3p1/8/7P/PP4PK/8 b - - 2 32","m":"d8d2 g6g8 d2d8 g8d8","r":534,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q6WKn","f":"3k1r2/p6Q/1q1b4/2pP3P/1p2R3/3P4/PPP5/1K6 w - - 3 34","m":"h7g7 f8f1 e4e1 f1e1","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q6Xa7","f":"4Q2k/pp4pp/6b1/3B4/8/7P/PPP2rp1/2K1R3 b - - 0 30","m":"g6e8 e1e8 f2f8 e8f8","r":416,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q72sK","f":"6k1/5ppb/3p1n1p/1p2p2P/1P1BP1P1/rQ3P1N/6K1/2R5 b - - 0 35","m":"a3b3 c1c8 f6e8 c8e8","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q76I1","f":"r2B2k1/3Q1ppp/p2R4/qp6/5P2/2P5/Pr4PP/5R1K b - - 3 24","m":"a8d8 d7d8 a5d8 d6d8","r":578,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q79ad","f":"1k1r1r2/pp3p2/4p2p/4N1p1/2R5/8/P3QPPP/3q2K1 w - - 0 25","m":"e2d1 d8d1","r":485,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"q7CUi","f":"8/1pn2kp1/2p5/3pR1p1/1P6/5B2/2P2PPP/r5K1 w - - 1 33","m":"e5e1 a1e1","r":443,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"q7MQM","f":"8/p4pkp/6p1/4q3/8/2P5/PP1r1PPP/4R1K1 w - - 0 26","m":"e1e5 d2d1 e5e1 d1e1","r":424,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"q7PIf","f":"2r2rk1/5ppp/p3p3/b5N1/6Q1/P3P3/1q3PPP/1R4K1 w - - 0 27","m":"b1b2 c8c1 g4d1 c1d1","r":494,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q7VMI","f":"4r1k1/3R1ppp/pp6/4B2P/6K1/P1P5/5P2/8 b - - 0 29","m":"e8e5 d7d8 e5e8 d8e8","r":444,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"q7Vox","f":"2r3k1/pp3ppp/1n2p3/1N2P3/8/3r4/PP3PPP/3R2K1 w - - 0 22","m":"d1d3 c8c1 d3d1 c1d1","r":570,"t":"backRankMate endgame mate mateIn2 short"},{"i":"q7YJh","f":"4r1k1/1pq2ppp/p1p5/8/2b5/2P1QN1P/PP1R2P1/3R2K1 b - - 0 22","m":"e8e3 d2d8 c7d8 d1d8 e3e8 d8e8","r":541,"t":"backRankMate endgame long mate mateIn3"},{"i":"q7pCZ","f":"5k2/1R3p1r/1p1R1p2/2p1p2p/2P1P3/rP6/5PPP/6K1 w - - 0 28","m":"b7b6 a3a1 d6d1 a1d1","r":489,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"q80rl","f":"rn1kr3/pp4p1/2P2n1p/8/5B2/2N4Q/P4PPP/3q2K1 w - - 0 21","m":"c3d1 e8e1","r":451,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"q8sWw","f":"4r1k1/p1pb1p2/2p3np/6p1/2Pq4/2N5/PP1Q1PPP/R1B3K1 w - - 0 20","m":"d2d4 e8e1","r":460,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"q8yrA","f":"6k1/pr3p2/6p1/7p/3Pp3/4P3/r4PPP/1R4K1 w - - 0 30","m":"b1b7 a2a1 b7b1 a1b1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"q9ICH","f":"rn3rk1/ppp3p1/4q2b/3p2NQ/3P4/8/PPP3PP/5R1K w - - 2 18","m":"g5e6 f8f1","r":525,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"q9RYV","f":"r5k1/6pp/5p2/1p6/8/3Pr3/2P3PP/4R2K w - - 0 30","m":"e1e3 a8a1 e3e1 a1e1","r":456,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"q9ThA","f":"r5k1/p5pp/1p2r3/3q1R2/3p4/P2Q4/1P4PP/4R2K w - - 0 29","m":"f5d5 e6e1 d3f1 e1f1","r":400,"t":"backRankMate endgame hangingPiece mate mateIn2 queenRookEndgame short"},{"i":"qAAPv","f":"4r1k1/4rp1p/6p1/3R4/8/7P/3n1PPB/3R2K1 w - - 3 36","m":"d5d2 e7e1 d1e1 e8e1","r":443,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qAAv8","f":"6k1/pQ3ppp/P3p3/3p4/3n4/6PP/6BK/4q3 b - - 15 44","m":"e1e2 b7b8","r":543,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qAZWV","f":"5r2/7k/8/p2R3p/8/8/PPP5/1K3rR1 w - - 1 31","m":"g1f1 f8f1 d5d1 f1d1","r":518,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qAoyd","f":"r5k1/5ppp/2p1p3/2P5/1n2N3/B3P3/4KPPP/3R4 b - - 3 25","m":"a8a3 d1d8","r":529,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qBtIb","f":"5r1k/2q3pp/p3Bn2/1p1Np3/3bP3/PP3R2/2P3PP/R6K b - - 2 26","m":"f6d5 f3f8","r":489,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"qDhwn","f":"2r3k1/5ppp/p1Q5/8/3P4/2P2PP1/q3P2P/1R3RK1 b - - 0 24","m":"c8c6 b1b8 c6c8 b8c8","r":405,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"qE3Ai","f":"3R1rk1/4nppp/1Q4q1/2P5/4p3/7P/P5P1/4R1K1 b - - 0 30","m":"f8d8 b6d8","r":596,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qEQI9","f":"5r1k/1pp3pp/1bb5/3p4/pP1P1Q1n/P1B1RP1P/5P2/4R1K1 b - - 0 34","m":"f8f4 e3e8 c6e8 e1e8 f4f8 e8f8","r":470,"t":"backRankMate long mate mateIn3 middlegame sacrifice"},{"i":"qEZtE","f":"r5k1/5ppp/5n2/5P2/2R5/4N3/2p2K1P/2r5 b - - 1 35","m":"a8a2 c4c8 f6e8 c8e8","r":409,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qEfJd","f":"1k2r3/p1p2p1b/BpP2B1p/1N3p2/5bP1/7P/PPP5/1K1R4 w - - 0 23","m":"d1d7 e8e1 d7d1 e1d1","r":490,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qEnMo","f":"5r1k/6pp/p7/1pn5/5QP1/7P/3R2PK/8 b - - 0 41","m":"f8f4 d2d8 f4f8 d8f8","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qEnmW","f":"r2Q1k1r/p1p1nppp/2p5/4p3/8/1PN3N1/P4q1P/2KR3R b - - 3 18","m":"a8d8 d1d8","r":548,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qFQp3","f":"1r3k2/6p1/7p/3Bq3/8/8/P4PPP/4Q1K1 w - - 0 29","m":"e1e5 b8b1 e5e1 b1e1","r":483,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qGDFo","f":"4r1k1/pp1n3p/2pNr1p1/1PPn4/3P1p2/1R5P/3Q1PPB/6K1 w - - 1 34","m":"b5c6 e6e1 d2e1 e8e1","r":541,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qGMNW","f":"3r2k1/5ppp/p7/1p1R4/8/8/PP3PPP/2R3K1 b - - 0 26","m":"d8d5 c1c8 d5d8 c8d8","r":566,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qGq1T","f":"1r4k1/ppp3pp/8/4r1N1/3q4/8/PP1Q1PPP/6K1 w - - 0 21","m":"d2d4 e5e1","r":482,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qHfpz","f":"3r2k1/p4pp1/2Q1bn1p/4P1b1/7B/1P3P2/P5PP/7K w - - 1 26","m":"h4g5 d8d1","r":512,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qIYMe","f":"2r1r2k/pp3p1B/5q2/2np2R1/3N2b1/2P3P1/PPQ3PP/5R1K w - - 1 24","m":"f1f6 e8e1 f6f1 e1f1","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qImM8","f":"R1b1r3/1p1k1pbp/1B6/3P4/8/1P1P4/5PPP/2R1r1K1 w - - 4 22","m":"c1e1 e8e1","r":577,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qIpEW","f":"1k1r4/2p4p/p1Qp3p/1p1BP3/4P1b1/2N2r2/PPP3PP/R4q1K w - - 6 19","m":"a1f1 f3f1","r":417,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qIrPF","f":"6k1/1p4p1/npp5/8/1P3Nb1/P7/1BPr2PP/4R2K w - - 1 28","m":"e1e7 d2d1 e7e1 d1e1","r":459,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qIxKf","f":"3q1rk1/1p3p1R/p3p1p1/4Pn2/5B2/P6Q/1p3PPP/1Rr3K1 w - - 1 23","m":"f4c1 d8d1","r":533,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qIzD6","f":"r4rk1/pp1qp2p/4p1p1/3P4/3bP1Q1/2N5/PP4PP/R1B2RK1 w - - 1 16","m":"g1h1 f8f1","r":592,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"qJHZX","f":"6k1/2p5/4p3/4b1p1/8/8/r1P2PPP/4R1K1 w - - 0 25","m":"e1e5 a2a1 e5e1 a1e1","r":452,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qJM44","f":"4r1k1/p3rppp/2p5/8/2b5/6Q1/P1P2PPP/q4RK1 w - - 0 18","m":"f1a1 e7e1 a1e1 e8e1","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qKHB9","f":"3r2k1/5p1p/p3p1pB/2p5/1p2b3/8/PPP2PPP/4R1K1 w - - 0 25","m":"e1e4 d8d1 e4e1 d1e1","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qKSpA","f":"2r3k1/6pp/p7/1p6/8/8/PP1r1PPP/3R2K1 w - - 0 30","m":"d1d2 c8c1 d2d1 c1d1","r":411,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qKdTz","f":"6k1/5p2/p2Bp1p1/P1r5/r7/5N2/5PPP/6K1 w - - 0 29","m":"d6c5 a4a1 f3e1 a1e1","r":402,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qKygw","f":"4rQ1k/1pN3pp/p1n5/4r3/1P6/q3P1PP/5RK1/2R5 b - - 3 31","m":"e8f8 f2f8","r":597,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qL69l","f":"r2r1bk1/pp3ppp/8/4pN2/4P3/8/PP3PPP/2RR2K1 w - - 5 20","m":"c1c7 d8d1","r":400,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"qLYiw","f":"3r2k1/1p3ppp/8/1p6/8/5P2/PP3qPP/5R1K w - - 0 30","m":"f1f2 d8d1 f2f1 d1f1","r":586,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qLcoT","f":"6k1/4p1bp/q2pP1p1/3P1p2/1P3P2/pR1Q4/2r3PP/7K w - - 0 37","m":"d3a6 c2c1 a6f1 c1f1","r":507,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qLnW0","f":"4rrk1/1p3ppp/5n2/3p4/1P1R4/5Q2/1P3PPP/1BR1q1K1 w - - 1 24","m":"c1e1 e8e1","r":486,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qLw61","f":"2r3k1/8/6p1/1p5p/3p4/5Q2/PP4P1/K1qR4 w - - 2 38","m":"d1c1 c8c1","r":400,"t":"backRankMate endgame master masterVsMaster mate mateIn1 oneMove queenRookEndgame"},{"i":"qM2OB","f":"q4Q1k/6pp/p1n1r3/1p6/3p4/8/PPPB2PP/R4R1K b - - 0 26","m":"a8f8 f1f8","r":414,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qMIgm","f":"rQ4k1/5ppp/5b2/4p2q/6n1/6P1/5PK1/1R6 b - - 1 36","m":"a8b8 b1b8 f6d8 b8d8","r":465,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qMe4l","f":"4b1k1/pp4pp/2p2n1q/3p4/3P4/3Q3P/PPB2PPB/6K1 w - - 0 27","m":"d3f5 h6c1 c2d1 c1d1","r":586,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qNPHz","f":"4rr2/p3B2k/2pq3p/3p1p1Q/3b1P2/1BN5/PPP3PP/4R2K w - - 3 21","m":"e7d6 e8e1","r":542,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"qNUBC","f":"5rk1/ppp2qpp/1b2p3/3nP3/4N3/3P4/PPPB2PP/R2Q3K w - - 4 17","m":"d1g4 f7f1 a1f1 f8f1","r":528,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"qNUUd","f":"1r4k1/5npp/5p2/3r4/3P4/5P1P/4RPK1/4R3 b - - 4 45","m":"d5d4 e2e8 b8e8 e1e8","r":443,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"qNjDp","f":"1k4R1/ppp2b2/8/4n3/2P3Q1/P2PK1Br/1P4q1/R7 b - - 0 35","m":"f7g8 g4g8","r":503,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qNuri","f":"2k5/p6p/8/8/2p5/2Bp3P/PP4r1/K2R4 w - - 0 39","m":"d1d2 g2g1 d2d1 g1d1","r":557,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qNwda","f":"2kr3r/ppp1bppp/8/8/2N1n3/8/PPP2PPP/R1B1R1K1 w - - 0 14","m":"e1e4 d8d1 e4e1 d1e1","r":465,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qPclG","f":"2kr1b1r/pp4pp/2p1p3/4q3/8/8/PPP2PPP/R1B1R1K1 w - - 0 17","m":"e1e5 d8d1 e5e1 d1e1","r":567,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qPekG","f":"4r1k1/2p2pp1/2b4p/p7/2Pb4/PP3P2/2Q3PP/3Rq2K w - - 1 30","m":"d1e1 e8e1","r":442,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qPtQS","f":"1r2Q2k/6pp/2n5/3p4/qbp3N1/7P/5PP1/4RRK1 b - - 0 30","m":"b8e8 e1e8 b4f8 e8f8","r":409,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qPzsh","f":"k2r4/pp5R/4K2p/1n6/8/6P1/PP4PP/8 b - - 5 41","m":"d8d2 h7h8 d2d8 h8d8","r":591,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qQP6y","f":"4r1k1/p5p1/1pQ3qp/5p2/4r3/P7/1P3PPP/R5K1 w - - 2 29","m":"c6g6 e4e1 a1e1 e8e1","r":565,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"qQdr1","f":"4r1k1/5ppp/p2R1q2/2p2P2/4Q3/2PR4/P5PP/6K1 b - - 0 27","m":"e8e4 d6d8 f6d8 d3d8 e4e8 d8e8","r":450,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"qRVdj","f":"2r5/p3k3/Qp2p2r/3p4/1P1P2P1/6p1/PP4B1/K1q1R3 w - - 5 30","m":"e1c1 c8c1","r":560,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qS1sR","f":"rn2k2r/p3nppp/2p3b1/8/B7/2N2N1P/PP3PP1/3RK2R b Kkq - 1 15","m":"e8f8 d1d8","r":513,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qS90J","f":"1r1q1Q1k/6pp/2bp4/2p1r3/2P5/1P2B3/1PP2RPP/5RK1 b - - 2 26","m":"d8f8 f2f8 b8f8 f1f8","r":578,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qS9Xk","f":"5rk1/pR2r2p/6pb/3p3n/3Pqp2/PQ2PN1P/5PPB/4R1K1 w - - 0 28","m":"e3f4 e4e1 f3e1 e7e1","r":558,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qSGDa","f":"8/1bknB3/2n3Q1/3rP3/2p5/b7/P4PPP/1R1q2K1 w - - 1 31","m":"b1d1 d5d1","r":428,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qSZNO","f":"6k1/q1p2ppp/5b2/3P4/2P5/3B1N2/1n3PPP/4R1K1 b - - 1 22","m":"b2d3 e1e8","r":474,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qSk7E","f":"2r3k1/p4ppp/1n2p3/2Q1P3/p6P/3R1NP1/5PK1/8 b - - 0 36","m":"c8c5 d3d8","r":508,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qSnDy","f":"r5k1/p1R2pp1/1pQ4p/3pPp2/P2P4/4qP2/1P4PP/6K1 w - - 2 29","m":"g1h1 e3e1","r":559,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qSq7h","f":"4r1k1/6pp/2p1q3/P1Qp4/8/P1P5/5PPP/R5K1 w - - 3 32","m":"a5a6 e6e1 a1e1 e8e1","r":432,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"qTPqj","f":"4r2k/p3Q1pp/1p2Pp2/q2p4/3P4/P5P1/1P5P/K1R1R3 b - - 0 28","m":"e8e7 c1c8 e7e8 c8e8","r":458,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"qTuKK","f":"r1b3k1/5pbp/4p1p1/1p4N1/1B6/2P5/1P1r1PPP/3R2K1 w - - 0 20","m":"d1d2 a8a1 d2d1 a1d1","r":481,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qUVkQ","f":"2r3k1/1b4pp/p3p3/1p6/4P1R1/3q4/PP1Q2PP/7K w - - 0 25","m":"d2d3 c8c1 d3d1 c1d1","r":466,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qUoqU","f":"r3r1k1/ppp2p2/2p2p2/6b1/6Q1/8/PPPP2PP/R1B2R1K w - - 2 17","m":"f1f6 e8e1 f6f1 e1f1","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qV7Tm","f":"2r3k1/pp3p1p/6p1/8/8/PP1rP3/5PPP/3R2K1 w - - 0 32","m":"d1d3 c8c1 d3d1 c1d1","r":442,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qVIWd","f":"r1b1r1k1/1pp2ppp/p7/5P2/7q/BPPN2Q1/2P4P/R3R2K b - - 0 20","m":"h4g3 e1e8","r":558,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"qVjyD","f":"r4bk1/q4ppp/8/2p1B3/1p2RN2/1p4Q1/P4PPP/6K1 w - - 0 29","m":"a2b3 a7a1 e5a1 a8a1 e4e1 a1e1","r":508,"t":"backRankMate long mate mateIn3 middlegame sacrifice"},{"i":"qVmoS","f":"4kr2/3R4/1pp1np1p/5R2/1PB5/r7/5PPP/6K1 w - - 2 33","m":"c4e6 a3a1 d7d1 a1d1","r":570,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qW85F","f":"6k1/2r2ppp/Bpr1b3/2P5/Q6q/P3B3/5PPP/3R2K1 b - - 5 28","m":"h4a4 d1d8","r":533,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qWjPG","f":"1Q1r2k1/5ppp/8/3b4/p2Np3/P3P3/5PPP/1R4K1 b - - 0 34","m":"d8b8 b1b8","r":422,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qX9FC","f":"6k1/4b2p/6p1/3p4/2pP4/r1P4R/1p3PPP/1R4K1 w - - 0 33","m":"b1b2 a3a1 b2b1 a1b1","r":491,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qXAwe","f":"3r1rk1/pBp2ppp/8/4p3/2P5/P7/1P3PPP/3qQ1K1 w - - 0 18","m":"e1d1 d8d1","r":464,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qXPKF","f":"8/p3rpk1/3N2pp/8/2n5/2P5/1R4PP/7K w - - 1 31","m":"d6c4 e7e1","r":497,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qXhl2","f":"2rqr1k1/pb2bppp/1p2p3/8/1PPNp3/P3P3/5PPP/RQBR2K1 w - - 0 17","m":"d4e6 d8d1","r":591,"t":"backRankMate hangingPiece master mate mateIn1 middlegame oneMove"},{"i":"qYAHG","f":"4r1k1/2p2pbp/1p1p2p1/p7/2P5/PR1Q1PB1/6PP/4q2K w - - 5 26","m":"g3e1 e8e1 d3f1 e1f1","r":515,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qYH1m","f":"3r3k/1p3Rpp/2p5/p3q3/2B1P3/2PQ4/2P3PP/2K5 b - - 1 26","m":"d8d3 f7f8","r":505,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qYZLs","f":"1r5k/5Rpp/8/p1p1q3/2P5/6QP/PP4P1/5R1K b - - 0 33","m":"e5g3 f7f8 b8f8 f1f8","r":522,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"qZAbJ","f":"2Q1q1k1/p4ppp/8/8/1P6/P4nP1/6BP/2R4K b - - 0 36","m":"e8c8 c1c8","r":452,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qZxna","f":"5r1k/p4Qpp/1pp1p3/8/2q1P3/8/5nPP/3R2K1 b - - 1 25","m":"f8f7 d1d8 f7f8 d8f8","r":407,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qaAMs","f":"k3Q2r/pp5p/2p3p1/7n/3r4/2NP2Pq/PPP2P1P/4RRK1 b - - 5 22","m":"h8e8 e1e8 d4d8 e8d8 h3c8 d8c8","r":536,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"qaZKG","f":"4r3/3k2pp/p2b1p2/1p1P4/1P2N3/P5P1/6PP/4R1K1 w - - 1 24","m":"e4f2 e8e1","r":437,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"qan29","f":"3rQ1k1/qp3ppb/3P3p/2n2P2/p5P1/P1N4P/1PP3B1/1K2R3 b - - 2 26","m":"d8e8 e1e8","r":481,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qarg6","f":"R7/1p3Npk/1Pp1p2p/3p4/3P1B2/2bbP3/1r3PPP/5K2 w - - 1 26","m":"f1g1 b2b1","r":471,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qb0Eq","f":"4Br1k/pp2Q1pp/n1b5/2P5/1q6/8/P4PpP/3RR1K1 b - - 0 22","m":"f8e8 e7e8 c6e8 e1e8","r":595,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qb3cM","f":"5r1k/p5bp/2p3p1/2P5/8/6Q1/PP3rPP/R3q2K w - - 0 27","m":"a1e1 f2f1 e1f1 f8f1","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qbrog","f":"2rQ2k1/5ppp/8/1p2Pq2/5P2/1P4B1/P5PP/1b1R2K1 b - - 6 31","m":"c8d8 d1d8","r":438,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qc3mR","f":"2r3k1/3q4/P3p2p/5pp1/8/8/5PPP/3R2K1 w - - 0 29","m":"d1d7 c8c1 d7d1 c1d1","r":501,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qcaU4","f":"q6Q/2p2kp1/2Nprp2/8/2P5/P7/5PPP/4R1K1 w - - 0 24","m":"h8a8 e6e1","r":432,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"qdG5Q","f":"6k1/p4ppp/1p6/8/4nP2/3P2PP/PP1r1P2/2R1K3 b - - 0 26","m":"d2d3 c1c8 d3d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qdHI1","f":"8/r5k1/3NQ1p1/3ppp1p/8/1P2P3/5PPP/2R3K1 w - - 0 41","m":"c1c8 a7a1 c8c1 a1c1","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qdNIW","f":"n6k/4r1pp/2p1r3/8/6PP/8/1P6/3R2K1 b - - 1 40","m":"e7f7 d1d8 e6e8 d8e8 f7f8 e8f8","r":440,"t":"backRankMate endgame fork long mate mateIn3"},{"i":"qdzcw","f":"3r4/5pkp/p1r1p1p1/8/P3R3/8/5PPP/2R3K1 w - - 0 28","m":"c1c6 d8d1 e4e1 d1e1","r":413,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qeHFt","f":"r4rk1/5ppp/2n2q2/ppp5/3p4/PP1P1N1P/R1P1QPP1/4R1K1 b - - 1 18","m":"f8e8 e2e8 a8e8 e1e8","r":546,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qeIBG","f":"3rb1k1/5p1p/4p1p1/4q3/8/Q7/5PPP/4R1K1 w - - 0 32","m":"e1e5 d8d1 e5e1 d1e1","r":415,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qeUBh","f":"1r4k1/p4ppp/4rb2/2pq4/8/2P5/PP3PPP/RN1R2K1 w - - 0 18","m":"d1d5 e6e1","r":576,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qeUi1","f":"5r1k/6pp/8/P2Bpp2/3b4/1R4P1/5P1P/6K1 b - - 0 38","m":"f8f6 b3b8 f6f8 b8f8","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qegsq","f":"6k1/1p2rppp/4N3/2p5/2P5/1P2P1P1/1P3P1P/r1BR2K1 b - - 0 23","m":"e7e6 d1d8 e6e8 d8e8","r":500,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qellg","f":"r2Q2k1/bp3ppp/p1b1p3/8/8/8/PP4PP/3R3K b - - 2 26","m":"a8d8 d1d8 c6e8 d8e8","r":450,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qex8G","f":"rk2Qr2/ppp4p/8/2q3b1/3R4/N1P5/PP4PP/4R1K1 b - - 4 22","m":"f8e8 e1e8 g5d8 e8d8","r":440,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qfJ2l","f":"2r3k1/4pp1p/pQ1p2p1/3P4/2r5/8/5PPP/q4RK1 w - - 0 27","m":"f1a1 c4c1 a1c1 c8c1","r":461,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"qfJu6","f":"3r1Nk1/p5p1/1p5p/4r3/5p2/P6R/1PP2PPP/4R1K1 w - - 0 27","m":"e1e5 d8d1 e5e1 d1e1","r":555,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qfKmi","f":"4r1k1/5ppp/pR6/P7/8/7P/5PPK/3r4 b - - 3 30","m":"e8e2 b6b8 d1d8 b8d8 e2e8 d8e8","r":433,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"qg1kl","f":"1q1r3k/p2p2pp/1pQR1p2/4p3/4P3/2P2P2/PP4PP/3R2K1 b - - 0 24","m":"d7c6 d6d8 b8d8 d1d8","r":400,"t":"backRankMate endgame fork mate mateIn2 queenRookEndgame short"},{"i":"qgDpO","f":"2kr3r/p6p/2p2p2/2b1p3/5R2/2P5/PP4PP/RN5K w - - 0 22","m":"f4f6 d8d1 f6f1 d1f1","r":528,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qgXif","f":"4R3/1r1P2k1/p1p5/3p3p/6p1/8/5PPP/6K1 w - - 0 45","m":"d7d8q b7b1 e8e1 b1e1","r":414,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"qglzy","f":"2RrQ1k1/p4ppp/1q6/8/8/7P/6P1/2R4K b - - 4 31","m":"d8e8 c8e8","r":422,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"qgpgQ","f":"2r4k/4b1pP/p2p1p2/4pP1P/1pr5/3N3Q/PP6/K1q3R1 w - - 2 35","m":"d3c1 c4c1 g1c1 c8c1","r":416,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"qgwcz","f":"3r2k1/5ppp/p2R4/1p2n3/1P2P3/P4P1P/6P1/2R4K b - - 0 30","m":"d8d6 c1c8 d6d8 c8d8","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qhDfo","f":"r4r2/ppRbk2p/4p1p1/3pQ3/3Pp1B1/8/6PP/2R2q1K w - - 2 27","m":"c1f1 f8f1","r":441,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qhK5d","f":"r1b1r2k/ppp3p1/3p1b1B/5p2/8/P1Q5/1PP2PPP/RN4K1 w - - 1 18","m":"c3h3 e8e1","r":547,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qhMag","f":"3r3k/p2q3p/6p1/1pp2pP1/4pPP1/2P4Q/PPPr4/1K2R2R w - - 1 31","m":"g4f5 d2d1 e1d1 d7d1 h1d1 d8d1","r":515,"t":"backRankMate endgame long mate mateIn3 sacrifice"},{"i":"qhXef","f":"1r6/2pk3p/2n1p3/p7/1r2p3/2b3P1/P2PPPBP/2Q1K2R w K - 0 21","m":"c1c3 b4b1 c3c1 b1c1","r":502,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qhg2s","f":"2k5/ppp4p/8/4rp2/2P3p1/1P1P4/P4bPP/5R1K w - - 0 25","m":"f1f2 e5e1 f2f1 e1f1","r":419,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qif6W","f":"3r2k1/5pp1/p2q3p/1p6/1P2p3/P3Qn2/B1R2PPP/3R2K1 w - - 1 25","m":"e3f3 d6d1 f3d1 d8d1","r":542,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"qj9uA","f":"2rQ2k1/p4ppp/8/1p6/3RP3/8/1q1NK1PP/8 b - - 1 31","m":"c8d8 d4d8","r":446,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qjleP","f":"4r1k1/5p1p/5p2/RPp5/3p4/1P1P4/2P1rPPP/5RK1 w - - 1 24","m":"f1c1 e2e1 c1e1 e8e1","r":526,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qjye1","f":"3r2k1/5ppp/p2Qp3/1p6/8/7P/1P3PP1/2R3K1 b - - 0 25","m":"d8d6 c1c8 d6d8 c8d8","r":471,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qjyvv","f":"r4rk1/1p4pp/4R3/3p4/p5Q1/3B4/3B2PP/5q1K w - - 2 25","m":"d3f1 f8f1","r":506,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qk6P3","f":"8/p2P2pk/7p/5q2/8/8/Pr4PP/5R1K w - - 0 30","m":"f1f5 b2b1 f5f1 b1f1","r":508,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qkIvG","f":"1r1R2k1/1p3ppp/1Q2b3/4n3/P7/2q3P1/4PP1P/1R4K1 b - - 1 25","m":"b8d8 b6d8","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qkP84","f":"1k2r3/ppp3pp/2p1B3/8/4P2P/8/PPP1K3/5R2 b - - 0 25","m":"e8e6 f1f8 e6e8 f8e8","r":421,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qkaCf","f":"5r1k/7p/8/3P4/2PR1pp1/8/4R1PP/1r5K w - - 1 41","m":"e2e1 b1e1","r":488,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove rookEndgame"},{"i":"qlEci","f":"3q3k/5ppp/p7/1p3N2/2p5/P7/6PP/4Q2K w - - 1 33","m":"e1g3 d8d1 g3e1 d1e1","r":488,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qlJCA","f":"8/2P2ppk/p6p/2r5/5P2/8/6PP/3R3K w - - 0 33","m":"d1d7 c5c1 d7d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qlJOS","f":"2r3k1/5ppp/pR2p3/P1RpP3/8/8/5P1P/5K2 b - - 0 28","m":"c8c5 b6b8 c5c8 b8c8","r":438,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qlQuu","f":"4r1k1/pp3ppp/2p5/8/3R2b1/2P1RP2/P1P4P/6K1 b - - 0 21","m":"e8e3 d4d8 e3e8 d8e8","r":454,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qlZG6","f":"1k6/ppp2Kpp/3r4/2r5/8/P4P1P/8/R3R3 b - - 3 30","m":"g7g6 e1e8 d6d8 e8d8","r":417,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qm39J","f":"k2rr3/pp2B3/8/1P1q4/P2p2p1/3P2Pp/2Q2P2/2R2K2 b - - 1 33","m":"e8e7 c2c8 d8c8 c1c8","r":544,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"qmAxC","f":"6k1/p4ppp/1pp5/4rb2/5K2/P7/1P2NPPP/3R4 b - - 0 27","m":"e5e2 d1d8 e2e8 d8e8","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qmEUe","f":"4rrk1/3bq2p/p4pp1/3pP1N1/5Q2/8/PP3PPP/R3R1K1 w - - 0 23","m":"e5f6 e7e1 a1e1 e8e1","r":584,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qmZHR","f":"2r1Q2k/pq4pp/1p6/3p4/8/bP4P1/P2B1P1P/4R1K1 b - - 2 26","m":"c8e8 e1e8 a3f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qmcXW","f":"6k1/3r1ppp/p2p4/Np1P4/1n2P1n1/PP4P1/4KP2/2R5 b - - 3 32","m":"b4a2 c1c8 d7d8 c8d8","r":408,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qml0n","f":"4R3/kp6/p2r3p/6p1/1P3p2/8/P4PPP/6K1 w - - 2 29","m":"e8e4 d6d1 e4e1 d1e1","r":406,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qn6O6","f":"2k1r3/1p2qppp/r4n2/p1Np4/8/B4Q2/PPP2PPP/3R2K1 w - - 4 25","m":"c5a6 e7e1 d1e1 e8e1","r":597,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"qnNmO","f":"5r1k/6p1/7p/8/3q4/8/PPP5/1K1R4 w - - 0 30","m":"d1d4 f8f1 d4d1 f1d1","r":540,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qnXxy","f":"6k1/pQB2p1p/2p3p1/2P5/2b5/4P3/Pb2qPPP/1R1r2K1 w - - 4 28","m":"b1d1 e2d1","r":545,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qnbW9","f":"5r1k/pp3rpp/1n2R3/4B3/2p1N3/2P1b3/PPB3PP/R5K1 w - - 6 22","m":"g1h1 f7f1 a1f1 f8f1","r":468,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qniRn","f":"2r3k1/5ppp/8/8/8/2Q4P/6P1/R6K b - - 0 40","m":"c8c3 a1a8 c3c8 a8c8","r":477,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qnja1","f":"6k1/p3nppp/1p6/3R4/1P3P2/4r3/P5PP/2R3K1 b - - 0 28","m":"e7d5 c1c8 e3e8 c8e8","r":451,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qo4r5","f":"3r1rk1/p1p2ppp/1p6/3P1q2/2P5/P3Q3/5PPP/1R2R1K1 b - - 1 20","m":"f8e8 e3e8 d8e8 e1e8","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qoAKH","f":"4r1k1/p4ppp/1p6/8/5P2/1Pn1P3/P2RB1PP/5K2 b - - 1 30","m":"e8e3 d2d8 e3e8 d8e8","r":415,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qoDrE","f":"r5k1/pp3npp/1bn1R3/8/7B/1N6/PPr3PP/4R2K b - - 1 20","m":"b6f2 e6e8 a8e8 e1e8","r":570,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qoI0t","f":"2r3k1/1p3pp1/p3p2p/3n4/1P1q4/P5Q1/5PPP/3R2K1 w - - 0 28","m":"d1d4 c8c1 d4d1 c1d1","r":516,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qogld","f":"1r4k1/5ppp/4p3/p7/3q4/8/5PPP/3Q2K1 w - - 0 34","m":"d1d4 b8b1 d4d1 b1d1","r":576,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"qol7u","f":"8/pp2r1kp/2pr4/4PR2/1P6/2P5/P5PP/7K w - - 0 31","m":"e5d6 e7e1 f5f1 e1f1","r":531,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qow2c","f":"2Q3k1/5ppp/1n6/3rp3/p7/1P4P1/P4P1P/2R3K1 b - - 0 31","m":"b6c8 c1c8 d5d8 c8d8","r":570,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qp0Lf","f":"8/pp2r1k1/5qnp/7Q/3n4/P7/1P4PP/5R1K w - - 0 30","m":"f1f6 e7e1 f6f1 e1f1","r":596,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qp0Yw","f":"3r2k1/3Q1ppp/4p1q1/np2P3/8/5P2/P5PP/2R1R1K1 b - - 0 27","m":"d8d7 c1c8 d7d8 c8d8","r":494,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qqWh1","f":"1n3r1k/p1p3pp/1b1p4/8/2BP4/1NP1q3/PP1N2PP/R4R1K b - - 1 20","m":"c7c5 f1f8","r":501,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"qqhoG","f":"r5k1/p1p2pp1/1pQ2B1p/8/8/5B2/P1Pq2PP/R3r2K w - - 0 24","m":"a1e1 d2e1","r":455,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"qqlBG","f":"r3r1k1/p4ppp/b1p1q3/8/3P4/2P2B2/2Q2PPP/2R2K1R w - - 4 19","m":"f1g1 e6e1 c1e1 e8e1","r":532,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"qqtdS","f":"3R4/1p3ppk/7p/1Pp5/1r6/4P3/P4PPP/6K1 w - - 1 26","m":"d8d7 b4b1 d7d1 b1d1","r":593,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qroTL","f":"4rrk1/5p2/p5p1/1p5p/8/8/PP3qPP/R2B1R1K w - - 0 26","m":"f1f2 e8e1 f2f1 e1f1","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qs6qw","f":"5r1k/2q1b1pp/p2p1n2/1p2p1P1/3pP3/1P1P3P/r3BQ1K/1R1N1R2 b - - 0 24","m":"f6h5 f2f8 e7f8 f1f8","r":500,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"qsEWu","f":"r1b2rk1/pp4pp/3Np3/8/3R4/8/6PP/2BR1q1K w - - 4 22","m":"d1f1 f8f1","r":442,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"qsNxV","f":"3q3k/1pp2p1p/2n1bNpB/4p3/P6Q/8/1PP2PPP/7K w - - 0 29","m":"h6g5 d8d1","r":400,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"qt7wN","f":"6k1/6p1/1n4Qq/2p5/3pP3/1P6/5rPP/5R1K w - - 0 34","m":"g6h6 f2f1","r":519,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"qtUwM","f":"1r4k1/1R3ppp/4p3/3p2P1/3P4/2p4P/1P4P1/R5K1 b - - 0 26","m":"b8b7 a1a8 b7b8 a8b8","r":521,"t":"backRankMate endgame master mate mateIn2 rookEndgame short"},{"i":"qtlmn","f":"4r1k1/p4ppp/1b3q2/3p4/1P6/P2p3Q/2P3PP/5R1K w - - 0 25","m":"f1f6 e8e1 f6f1 e1f1","r":422,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qtmmt","f":"3r2k1/3q1pbp/p5p1/Pp2p3/2p5/2P1P1B1/1PQ2PPP/4R1K1 w - - 0 28","m":"e1d1 d7d1 c2d1 d8d1","r":467,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qtpCX","f":"r5k1/1p3ppp/p7/1b1q4/3NR1P1/2PP3P/1B6/2K1R3 b - - 1 25","m":"b5d3 e4e8 a8e8 e1e8","r":557,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"quBK2","f":"1r4k1/5ppp/1N2p3/R3P3/p2PKP1n/P7/7P/8 b - - 3 30","m":"b8b6 a5a8 b6b8 a8b8","r":463,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qupsM","f":"1k6/ppp2b1r/3p1RP1/8/6P1/5K2/PP6/8 b - - 0 39","m":"f7g6 f6f8 g6e8 f8e8","r":503,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qvT2f","f":"1rrQ2k1/1p3ppp/8/8/P1q5/7P/1PPR1PP1/2KR4 b - - 2 27","m":"c8d8 d2d8 b8d8 d1d8","r":532,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"qvpkm","f":"6k1/1R3ppp/1p2p3/8/p7/7P/PP3PPK/3r4 b - - 1 26","m":"d1d6 b7b8 d6d8 b8d8","r":511,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qwJaU","f":"r1b3k1/1p1n1ppp/1Np5/p1P5/4r3/4PN2/PP3KPP/2RR4 b - - 1 20","m":"d7b6 d1d8 e4e8 d8e8","r":586,"t":"backRankMate master mate mateIn2 middlegame short"},{"i":"qwdrt","f":"k1r5/1p5p/p2Q2pn/8/4R2N/8/PP3PPP/6K1 w - - 5 32","m":"e4e7 c8c1 d6d1 c1d1 e7e1 d1e1","r":412,"t":"backRankMate endgame long mate mateIn3"},{"i":"qxHRf","f":"6k1/p4ppp/1p2B3/8/8/4r2P/P5P1/3R1K2 b - - 0 27","m":"e3e6 d1d8 e6e8 d8e8","r":440,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qxPDq","f":"3r3k/ppp3pp/4R3/8/8/1P1N1P2/K5PP/8 b - - 0 29","m":"d8d3 e6e8","r":492,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"qxVrp","f":"1r4rk/2R1R1p1/7p/2p2p2/2n5/1P6/5PPP/6K1 w - - 2 35","m":"b3c4 b8b1 e7e1 b1e1","r":565,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qxq7W","f":"3r2k1/1r3ppp/4p3/4P3/p5P1/Pb3PK1/5B1P/2R5 b - - 1 32","m":"d8d3 c1c8 d3d8 c8d8","r":420,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qyEto","f":"6k1/p6p/1p1rpPp1/8/2R2P2/P3R3/6PP/7K w - - 0 30","m":"c4c7 d6d1 e3e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qzCMh","f":"6k1/Qp3ppp/2p5/3qP3/8/2P4P/P4PP1/6K1 b - - 0 24","m":"d5e5 a7a8 e5b8 a8b8","r":554,"t":"backRankMate endgame mate mateIn2 queenEndgame short"},{"i":"qzMLJ","f":"2r3k1/p4ppp/p7/3r4/8/1P6/P1p1RPPP/2R3K1 w - - 0 29","m":"c1c2 d5d1 e2e1 d1e1","r":506,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"qzRkD","f":"4r1k1/p2r1pp1/1p5p/6B1/8/1Pp2B2/P1P2PPP/3R2K1 w - - 0 24","m":"g5f4 d7d1 f3d1 e8e1","r":591,"t":"backRankMate endgame mate mateIn2 short"},{"i":"qzTu2","f":"2R2rk1/pp3ppp/1q2p3/3pP3/8/1P2PQ1P/P5P1/5RK1 b - - 0 19","m":"f8c8 f3f7 g8h8 f7f8 c8f8 f1f8","r":583,"t":"backRankMate endgame long mate mateIn3 sacrifice"},{"i":"qzwmX","f":"r3nrk1/1p4pp/p2Bp3/8/Q3R3/2N5/PP4PP/4Rq1K w - - 2 21","m":"e1f1 f8f1","r":491,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"r046F","f":"6k1/6pp/4p3/1r1p4/8/2p1P3/5PPP/2R3K1 w - - 0 33","m":"c1c3 b5b1 c3c1 b1c1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"r0l9C","f":"R2br1k1/6pp/5p2/2B5/8/2P5/P3rPPP/R5K1 w - - 1 28","m":"c5d4 e2e1 a1e1 e8e1","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r1ZM0","f":"1r3Q1k/nq1b2pp/p2p4/P2Pp3/2P1N2P/6P1/1B4BK/5R2 b - - 0 30","m":"b8f8 f1f8","r":430,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"r1irt","f":"2r3k1/1p3p1p/p3p1p1/8/N2Q4/8/1P3PPP/1Rq3K1 w - - 1 29","m":"b1c1 c8c1 d4d1 c1d1","r":587,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r1jU2","f":"Q1Q3k1/2q2ppp/8/8/8/6P1/3b1P1P/5BK1 b - - 0 41","m":"c7c8 a8c8","r":439,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"r27Be","f":"1r4k1/p4ppp/b3pq2/3p4/3P4/2R5/PQ2NPPP/2R3K1 b - - 0 21","m":"b8b2 c3c8 a6c8 c1c8 f6d8 c8d8","r":588,"t":"backRankMate endgame long mate mateIn3 sacrifice"},{"i":"r2S50","f":"4r1k1/5pbp/6p1/p1p1r1q1/2Pp4/PP1R1Q2/5PPP/2BR2K1 w - - 9 30","m":"c1g5 e5e1 d1e1 e8e1","r":538,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"r2VDa","f":"r1b2rk1/2q2ppp/p3p3/1pp3P1/4pP1P/4P3/PPPQB3/2KR3R b - - 0 17","m":"f8d8 d2d8 c7d8 d1d8","r":439,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"r2oNp","f":"8/p5k1/2pp4/4p3/5rp1/1B6/PPP2rPP/3q2QK w - - 0 29","m":"g1d1 f2f1 d1f1 f4f1","r":474,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"r3xI3","f":"r1b2k1r/ppq1npbp/4p1p1/1B6/N3P1P1/P3P2P/1P6/1K1R2NR b - - 0 17","m":"c7e5 d1d8","r":587,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"r4AF8","f":"3r3k/3r1pp1/1n5p/1p6/4qP1P/2N3P1/PPP5/1K1RR3 w - - 0 30","m":"c3e4 d7d1 e1d1 d8d1","r":553,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r4Jm6","f":"5rk1/1p4p1/7p/2Pr4/1PRpp3/1Q6/6PP/3R1q1K w - - 4 42","m":"d1f1 f8f1","r":510,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"r4PIh","f":"2r1r1k1/pp3ppp/1q6/3p4/3Nn3/P1P2P1P/1P2Q1P1/R3R1K1 b - - 0 20","m":"e4g3 e2e8 c8e8 e1e8","r":470,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"r4rhr","f":"6k1/pp3ppp/8/8/8/1P2P1P1/3R1PKP/1Br5 b - - 2 30","m":"c1b1 d2d8","r":449,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"r4uFA","f":"2b1rrk1/5p1p/pp4p1/3pq3/3N1Q2/P1P3R1/1P3PPP/R5K1 w - - 0 24","m":"f4h4 e5e1 a1e1 e8e1","r":567,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"r5aBf","f":"4rQ1k/p5pp/8/2np4/2r5/4q1N1/PP4PP/3R1R1K b - - 5 25","m":"e8f8 f1f8","r":415,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"r5e2Y","f":"3r2k1/ppq2ppp/5p2/7r/8/2P4P/PP2QPP1/R3R1K1 b - - 1 23","m":"h5g5 e2e8 d8e8 e1e8","r":405,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"r5iCA","f":"2q3k1/p5pb/1p2p2p/3nBp2/3P4/Q3PB2/P4PPP/6K1 w - - 0 25","m":"a3a7 c8c1 f3d1 c1d1","r":407,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r62Jm","f":"2rr2k1/p1p2ppp/1p4n1/3R4/8/4PN2/PP3PPP/3R2K1 b - - 2 20","m":"g6e7 d5d8 c8d8 d1d8","r":528,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r69jm","f":"2r2rk1/pp3ppp/4pn2/3pN3/3P4/1P5Q/3q1PPP/3R2K1 w - - 0 19","m":"d1d2 c8c1 d2d1 c1d1","r":480,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r6Gjg","f":"2r3k1/1p3ppp/p3p3/3pP3/3q4/1P6/PQ3PPP/2N3K1 w - - 1 23","m":"b2d4 c8c1 d4d1 c1d1","r":517,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"r6H6k","f":"r1b1r1k1/ppp2ppp/3n4/8/5Q2/1B6/P1P2PPP/BN1Rq1K1 w - - 1 17","m":"d1e1 e8e1","r":577,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"r6KGx","f":"B6k/p5pp/8/1pp1p1qP/8/1PKP2P1/P1P2R2/R2b4 b - - 0 25","m":"d1h5 f2f8","r":413,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"r6je0","f":"7k/6p1/2P3Qp/8/2q5/5P2/4r1PP/4R2K w - - 3 35","m":"e1e2 c4c1 e2e1 c1e1","r":589,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r6knK","f":"3r2k1/p4pp1/7p/8/1b2pP2/1B2P3/PPq3PP/K1R5 w - - 0 27","m":"c1c2 d8d1 c2c1 d1c1","r":456,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r70PM","f":"4r1k1/1p1R3p/2p1q1p1/8/P4P2/1PQ5/2P2PPP/3Rr1K1 w - - 1 34","m":"c3e1 e6e1 d1e1 e8e1","r":577,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r78rI","f":"3r2k1/5ppp/3N4/R1p5/2P5/5P2/1P1n2PP/6K1 b - - 0 24","m":"d8d6 a5a8 d6d8 a8d8","r":529,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r7OcJ","f":"5r1k/pp1b1r1p/2p1pNp1/4P2q/3P4/8/PPP4Q/1K3R1R w - - 8 28","m":"f6h5 f7f1 h1f1 f8f1","r":549,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"r8Eoy","f":"6k1/p4ppb/1p5p/2p2P2/6P1/2PR2KP/P1Pp1r2/8 b - - 1 34","m":"f2e2 d3d8 e2e8 d8e8","r":550,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r8MTX","f":"4r1k1/pq2rpb1/7p/2p5/5p2/5B2/P1Q2PPP/3R2K1 w - - 0 30","m":"f3b7 e7e1 d1e1 e8e1","r":523,"t":"backRankMate endgame mate mateIn2 short"},{"i":"r8S1C","f":"1k6/ppp3p1/3r3r/4pn1p/PP5Q/4PR2/4B2N/R6K b - - 0 24","m":"f5h4 f3f8 d6d8 f8d8","r":572,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"r8TUa","f":"6k1/6p1/1P5p/1qPp1p2/r2Pp3/4P3/5PPP/1R4K1 w - - 0 31","m":"b1b5 a4a1 b5b1 a1b1","r":421,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"r908J","f":"2R1r1k1/p3r2p/1pq2ppQ/3p1p2/3P4/8/PP3PPP/2R3K1 w - - 14 30","m":"c8c6 e7e1 c1e1 e8e1","r":409,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"r91sh","f":"2Rr3k/6pp/8/4q3/4p3/7P/4KPP1/2Qr4 b - - 5 41","m":"d1c1 c8d8 e5e8 d8e8","r":555,"t":"backRankMate endgame hangingPiece mate mateIn2 queenRookEndgame short"},{"i":"r9Mvg","f":"7k/6pp/8/1p1P4/8/7P/P5P1/q3QK2 b - - 8 36","m":"a1a2 e1e8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove queenEndgame"},{"i":"rA7qR","f":"r4rk1/pp1b2p1/2p1pq1p/4N3/3PQ3/2P3R1/PP4PP/4R2K w - - 1 26","m":"e5d7 f6f1 e1f1 f8f1","r":508,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"rAAGD","f":"r2r2k1/p4ppp/8/1pp5/4RP2/3Q4/1P4PP/4R1K1 b - - 0 23","m":"d8d3 e4e8 a8e8 e1e8","r":423,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rAKDD","f":"4r2k/6p1/pn5p/Bp1p4/3P4/1P6/P1Q2PPP/6K1 w - - 0 31","m":"a5b6 e8e1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rAtTi","f":"1r4k1/5pp1/4pn1p/8/5P2/2q3R1/6PP/2R4K w - - 0 42","m":"c1c3 b8b1 c3c1 b1c1","r":421,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rAuUG","f":"6k1/5ppp/p1q5/1p1p4/4Q3/2P4P/PP4P1/3R2K1 b - - 0 31","m":"d5e4 d1d8 c6e8 d8e8","r":418,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"rBIBx","f":"r5k1/5ppp/5b2/8/1p1p4/1P3P1P/3N1P2/4R1K1 b - - 1 25","m":"a8a2 e1e8","r":507,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rCNyQ","f":"r3r2k/pp1nq1p1/2p1BpQp/8/8/1P6/P1P2PPP/R3R1K1 w - - 3 19","m":"e6f5 e7e1 a1e1 e8e1","r":567,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rCpfP","f":"r1b2r1k/pp4pp/5b2/8/2B5/2N5/PP4PP/R4RK1 b - - 1 18","m":"f6c3 f1f8","r":459,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"rD2wY","f":"r2bB2k/6pp/pp1B4/2pn4/P2n4/8/1Pp3PP/R4RK1 b - - 0 21","m":"d8g5 f1f8","r":500,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rDP7m","f":"1r6/2k2ppp/8/8/1R1p4/8/5PPP/6K1 w - - 0 38","m":"b4d4 b8b1 d4d1 b1d1","r":453,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rDQhy","f":"1k1r4/pp4p1/4Rp1p/2p5/3P4/2P5/PP3PPP/6K1 w - - 0 22","m":"d4c5 d8d1 e6e1 d1e1","r":450,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rDYc1","f":"5r1k/p4rpp/2p5/8/4P3/2NQ4/PPPB2PP/4q2K w - - 0 25","m":"d2e1 f7f1 d3f1 f8f1","r":522,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"rDtCY","f":"5rk1/3R1ppp/4p3/1rP5/pP2b3/P3P3/1K3P1P/3R4 b - - 3 28","m":"f8b8 d7d8 b8d8 d1d8","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rDzW2","f":"7k/1p4pp/8/p4P2/P1PR4/5K1P/2P1r3/4r3 b - - 2 45","m":"e2c2 d4d8 e1e8 d8e8","r":423,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rEFAx","f":"3k4/1R2bpp1/1p2p2p/4P3/1P6/r2r1N2/5PPP/R5K1 w - - 0 24","m":"a1a3 d3d1 f3e1 d1e1","r":488,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rF9Ru","f":"r4r2/pp4k1/2p1qRpp/3p4/8/2N3P1/PP4PP/5R1K w - - 0 27","m":"f6e6 f8f1","r":453,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"rG58P","f":"6k1/5ppp/Rr2p3/1nRp4/1P6/8/5PPP/6K1 b - - 0 32","m":"b6a6 c5c8","r":423,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rG6fA","f":"2r1b2k/1p4pp/8/p2p1R1P/3Pr3/2B5/1P4P1/2K2R2 b - - 0 28","m":"e8b5 f5f8 c8f8 f1f8","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rGK3R","f":"3r2k1/1p3ppp/p3p3/2b1R3/2P5/3r2B1/PP3PPP/R5K1 w - - 1 20","m":"e5c5 d3d1 a1d1 d8d1","r":595,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rGKrj","f":"4r1k1/pp3ppp/2p5/4Q3/4P3/5P2/PPP3qP/1K1R3R b - - 0 19","m":"e8e5 d1d8 e5e8 d8e8","r":440,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"rGMwV","f":"r1b2r1k/pp3Qpp/n1p2p2/8/5R2/6P1/PP3PBP/4R1K1 b - - 0 22","m":"f8f7 e1e8 f7f8 e8f8","r":560,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rGp1t","f":"8/p4p1k/1p2pBp1/7p/Pr1P4/8/5PPP/2R3K1 w - - 3 30","m":"c1c7 b4b1 c7c1 b1c1","r":492,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rGvhV","f":"6k1/5ppp/1p6/p7/RB6/4P2P/P1r2PPK/3r4 b - - 1 26","m":"a5b4 a4a8 c2c8 a8c8 d1d8 c8d8","r":461,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"rH7A2","f":"3rr1k1/1pp2ppp/p1p1bq2/8/3P4/2P1QN1P/PP3PP1/R3R1K1 b - - 0 16","m":"e6f5 e3e8 d8e8 e1e8","r":553,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rHpuX","f":"5r2/1p2k1pp/p3p3/3p4/PP6/4R3/2P3PP/2R2q1K w - - 2 29","m":"c1f1 f8f1","r":583,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"rHpxL","f":"r5k1/pRp2pp1/4r2p/2b5/4N3/3P4/P1P2PPP/4R1K1 w - - 0 23","m":"e4c5 e6e1","r":475,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"rIJQ5","f":"4r1k1/p3q1pp/2p3p1/3p4/1PPP4/P2Q2n1/6PP/4R2K w - - 1 24","m":"d3g3 e7e1 g3e1 e8e1","r":503,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rIN5x","f":"rn3r1k/ppp1R1np/8/3B4/6Q1/8/PPP3PP/R4q1K w - - 2 23","m":"a1f1 f8f1","r":483,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rIXUP","f":"1r1r4/ppp4k/2n4p/6b1/4qN2/P7/1PP2PPP/R1B1R1K1 w - - 0 22","m":"e1e4 d8d1 e4e1 d1e1","r":416,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rIvTW","f":"6k1/p4ppp/2rBp3/2R5/8/4P3/P3KPPP/8 b - - 0 22","m":"c6d6 c5c8 d6d8 c8d8","r":504,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rIy43","f":"4rbnr/kp4p1/p6p/2pBN3/3P4/8/PPP2PPP/RNB3K1 w - - 0 18","m":"e5f7 e8e1","r":474,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rJ3DL","f":"3r1r2/3R1bk1/p3p2p/4N1p1/1p2N3/1B6/P1P3PP/7K w - - 3 32","m":"d7a7 d8d1","r":453,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"rJ8CP","f":"5rk1/1b3ppp/2r5/4p3/4P3/3Q4/PPP2qPP/2KR3R b - - 1 18","m":"f8c8 d3d8 c8d8 d1d8","r":443,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"rJkpA","f":"6k1/2p2p2/5Pb1/p4Q1p/8/1P1p4/P2R2PP/4r2K w - - 1 35","m":"f5f1 e1f1","r":400,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"rK6hO","f":"4r1k1/5ppp/8/7q/3PQ3/1P4P1/1P1B1P1P/2R3K1 b - - 0 26","m":"e8e4 c1c8 e4e8 c8e8","r":512,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rKM1S","f":"4r3/ppp2ppk/3r4/6RP/5P2/8/PPP5/1K1R4 w - - 0 32","m":"d1d6 e8e1 d6d1 e1d1","r":540,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rLzWv","f":"2rQ2k1/pp3ppp/8/8/3P4/4R1B1/b1q3PP/4R2K b - - 0 24","m":"c8d8 e3e8 d8e8 e1e8","r":500,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rMDRO","f":"8/4R1pk/p6p/1p3p2/8/2P5/Pr4PP/5R1K w - - 0 32","m":"f1f5 b2b1 e7e1 b1e1 f5f1 e1f1","r":526,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"rMZ0v","f":"6k1/p1q2ppp/1p3b2/2p5/P1n5/2P3PP/5PQ1/3B3K b - - 0 33","m":"f6c3 g2a8 c7b8 a8b8","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rMzYA","f":"1r6/1p1Q1rk1/p2p2pp/8/3Np3/2P5/P5PP/7K w - - 1 34","m":"d7d6 f7f1","r":560,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rNFEx","f":"7k/6pp/2b2p2/4n3/4PP2/8/3r2PP/2R3K1 b - - 0 39","m":"c6e4 c1c8 d2d8 c8d8","r":578,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rNSH1","f":"1r1Q1k1r/2p1npp1/bp4qp/p3p3/4N3/4P1P1/PPP3BP/2KR3R b - - 9 18","m":"b8d8 d1d8","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rNUbO","f":"r3r1k1/pp2qp2/7p/3p2pn/3P4/2N3B1/PP3PPP/R2Q2K1 w - - 0 18","m":"d1h5 e7e1 a1e1 e8e1","r":514,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"rNl5k","f":"5bk1/1pR5/1p1P3p/1P1pPNp1/8/r7/6PP/7K w - - 0 34","m":"e5e6 a3a1 c7c1 a1c1","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rNsGp","f":"r2Q3k/pp4pp/2p5/5q1b/5P2/1PP3P1/P6P/3R2K1 b - - 2 29","m":"a8d8 d1d8 h5e8 d8e8 f5f8 e8f8","r":424,"t":"backRankMate endgame long mate mateIn3"},{"i":"rOFob","f":"3r2k1/1p2ppbp/2p3p1/8/8/P4NB1/1PR2PPP/R2r2K1 w - - 1 25","m":"a1d1 d8d1 f3e1 d1e1","r":406,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rOVeT","f":"3R1nk1/p5pp/5p2/8/1p3B2/b1r1PN2/P4PPP/6K1 w - - 4 31","m":"f4d6 c3c1 f3e1 c1e1","r":418,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rOcbN","f":"r2r2k1/pbp2ppp/1pn5/3q4/3P4/P4N2/1B2QPPP/3RR1K1 b - - 2 18","m":"d8e8 e2e8 a8e8 e1e8","r":420,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rOi8P","f":"4R3/5p1k/pBp4p/6p1/2P5/8/Pr3PPP/6K1 w - - 2 27","m":"c4c5 b2b1 e8e1 b1e1","r":546,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rOlIu","f":"r4Q1k/1p4pp/1qp5/8/p1P2R2/P2n2P1/1P3PBP/6K1 b - - 7 27","m":"a8f8 f4f8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rP3ux","f":"6k1/1p3ppp/PRb1p3/3pr3/8/2N1P3/6P1/6K1 b - - 0 31","m":"b7a6 b6b8 c6e8 b8e8","r":493,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rPDrN","f":"5r1k/ppp3pp/2nb4/3B4/3P1pqP/1P2P1P1/P1P2Q2/2B2RK1 b - - 2 33","m":"f4g3 f2f8 d6f8 f1f8","r":574,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rPXYA","f":"r3r1k1/p1p2pp1/1p5p/3pq3/Q5b1/2P5/P3BPPP/1R2R1K1 w - - 0 20","m":"e2g4 e5e1 b1e1 e8e1","r":500,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rPlJj","f":"6k1/5ppp/8/1p6/1PB3P1/3R2KP/8/1r6 b - - 0 34","m":"b5c4 d3d8","r":408,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"rPq2E","f":"1k6/ppp5/5R2/4Q3/7q/3K1R1P/PPP5/4r2r b - - 0 34","m":"e1e5 f6f8 e5e8 f8e8 h4d8 e8d8","r":555,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"rQFtG","f":"2r3k1/R2R1pp1/4p1bp/4b3/1pN5/1P6/5PPP/6K1 w - - 2 33","m":"c4e5 c8c1 d7d1 c1d1","r":516,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rQPol","f":"6k1/ppn1q2p/2p3p1/2P1rp2/1P6/P4R2/1Q4PP/3R3K w - - 6 36","m":"f3d3 e5e1 d1e1 e7e1","r":498,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rQcd9","f":"2r1R3/kr3ppp/3Q4/p7/8/2P2N2/P4PPP/6K1 w - - 4 30","m":"e8c8 b7b1 d6d1 b1d1 f3e1 d1e1","r":522,"t":"backRankMate endgame long mate mateIn3"},{"i":"rQhu5","f":"3r3k/2R3pp/p7/3Q1p2/8/7P/P4PP1/7K b - - 0 33","m":"d8d5 c7c8 d5d8 c8d8","r":421,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rQtsp","f":"4r1k1/5p2/p1p1rn2/5bp1/3R3p/2N3BP/PPP2PP1/2R3K1 w - - 0 26","m":"g3h2 e6e1 c1e1 e8e1","r":482,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rQxC1","f":"3Q2k1/p4ppp/1p1q4/8/5P2/P5BP/1Pr2P1K/3R4 b - - 0 29","m":"d6d8 d1d8","r":432,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rRS8Z","f":"8/Q1p3k1/2p1q2p/6p1/8/8/PPP5/1K2r2R w - - 1 41","m":"h1e1 e6e1","r":486,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rRUXX","f":"2r2rk1/pp2pp1p/3p2p1/3P4/4BP2/7R/PP1q2PP/3R3K w - - 0 21","m":"d1d2 c8c1 d2d1 c1d1","r":582,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rRaEE","f":"4r1k1/Q4pp1/3q2np/8/2P5/1P2P3/4rPPP/3R2K1 w - - 0 25","m":"d1d6 e2e1","r":557,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rS0WZ","f":"7k/p1q2rpp/1p3r2/2p5/5B2/2P5/PP4PP/3R1R1K w - - 0 29","m":"f4c7 f6f1 d1f1 f7f1","r":541,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rS7T8","f":"rn2k2r/p7/1pp1p3/5pp1/2PN1bp1/3P2N1/PP2BPP1/R2QRK1q w kq - 6 21","m":"g3h1 h8h1","r":573,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"rSNaG","f":"r5k1/5ppp/2p2n2/3pp3/8/Q4P1P/6P1/1R5K b - - 0 31","m":"a8a3 b1b8 f6e8 b8e8","r":515,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rSNv5","f":"1N4k1/r3Qppp/4p3/8/3Pn3/4P3/q4PPP/2R2RK1 b - - 0 24","m":"a7e7 c1c8 e7e8 c8e8","r":427,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rSTiw","f":"r3r1k1/1bq1nppp/p1n5/1p1B4/8/2P2N2/P2BQPPP/3RR1K1 b - - 0 18","m":"e7d5 e2e8 a8e8 e1e8","r":554,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rSa3V","f":"3Q2k1/pp2nppp/2n1bq2/8/4P3/2N2P2/PPP1B1PP/2KR3R b - - 0 17","m":"c6d8 d1d8","r":482,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rSd5k","f":"5r2/p2p1rk1/b1p1p1n1/p3P1Q1/P3PB2/6b1/2P3PP/3R3K w - - 0 31","m":"f4g3 f7f1 d1f1 f8f1","r":581,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rSh1B","f":"1k1r4/ppp3R1/8/7p/1P3p2/3R3P/PBn2P1P/6K1 b - - 0 27","m":"d8d3 g7g8 d3d8 g8d8","r":497,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rSjcq","f":"2Rr2kr/4Qppp/4p3/3n4/p7/8/PP3KPP/8 b - - 0 31","m":"d5e7 c8d8","r":417,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"rSlUL","f":"r1bkr3/1p1n2R1/2p1Q3/p4p2/3P4/2N5/PPP2P2/1K6 w - - 3 29","m":"e6d6 e8e1 c3d1 e1d1","r":475,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rSncq","f":"r1b1r1k1/pp3p1p/2p2p2/n1b5/q2N4/2P5/PP3PPP/RN1Q2KR w - - 0 15","m":"d1a4 e8e1","r":532,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rSsGi","f":"r3r1k1/ppp1Rppp/8/8/5b2/2N5/PPP2PPP/4R1K1 b - - 3 19","m":"f4d2 e7e8 a8e8 e1e8","r":526,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rT00w","f":"2r3k1/pR3ppp/6r1/3P2q1/3Pp1n1/B3P1P1/3N1PKP/2Q5 b - - 0 25","m":"c8c1 b7b8 c1c8 b8c8 g5d8 c8d8","r":475,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"rTEUz","f":"r3R2k/p1p3pp/6p1/5q2/3P4/2P2pPP/PP3P2/4R1K1 b - - 1 23","m":"a8e8 e1e8 f5f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"rTREE","f":"6k1/5ppp/3Rb1q1/2n5/1P6/2P3R1/1K2P3/8 b - - 0 36","m":"g6g3 d6d8","r":515,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rTTZ6","f":"2rr4/ppp1kb2/4p3/4nB2/8/2P2R2/PP3PPP/4R1K1 w - - 1 32","m":"e1e5 d8d1 e5e1 d1e1","r":573,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rTcTl","f":"1k1Qr3/ppp5/6q1/2b4p/8/2P2P2/PP4PP/2KR3R b - - 3 26","m":"e8d8 d1d8","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rUOB2","f":"1r4k1/1N3ppp/1n2p3/1q2P3/2p2B2/4PP2/P5PP/2RR2K1 b - - 3 25","m":"b8b7 d1d8 b5e8 d8e8","r":412,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rUfpV","f":"8/7p/2r5/5p2/3k4/1P2R3/3B1PPP/2q3K1 w - - 0 43","m":"d2c1 c6c1 e3e1 c1e1","r":597,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rUzXz","f":"4r1k1/5ppp/8/r2pN3/P7/7P/5PP1/R1R3K1 b - - 0 24","m":"e8e5 c1c8 e5e8 c8e8","r":450,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rV55i","f":"2r3k1/R4p1p/4p1p1/P7/8/8/2r2PPP/2R3K1 w - - 0 27","m":"a5a6 c2c1","r":482,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove rookEndgame"},{"i":"rV7sv","f":"1rQ3k1/5ppp/3p1n2/3Pp3/3bP3/5B2/rP3PPP/2R3K1 b - - 4 24","m":"b8c8 c1c8 f6e8 c8e8","r":555,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rW26r","f":"1R2q3/1P1R2p1/5pkp/4p3/8/1r6/4NPPP/6K1 w - - 0 30","m":"b8e8 b3b1 e2c1 b1c1 d7d1 c1d1","r":466,"t":"backRankMate endgame long mate mateIn3"},{"i":"rW6zm","f":"4q1k1/p4p1p/1p3Qp1/7P/2p5/8/PPP1rPP1/1K5R w - - 0 25","m":"h5h6 e2e1 h1e1 e8e1","r":548,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rWJwn","f":"3r2k1/3Q1ppp/pR2p3/4q1P1/2P5/7P/6P1/1R5K b - - 0 35","m":"d8d7 b6b8 e5b8 b1b8 d7d8 b8d8","r":546,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"rXJUU","f":"rnrQ3k/6pp/p3B3/5p2/1p3Pq1/4B1P1/PP5P/1K1R3n b - - 2 23","m":"c8d8 d1d8","r":578,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rXcRn","f":"r3b1k1/6pp/4Q1p1/1p6/8/1P6/P2q1PPP/4R1K1 b - - 3 32","m":"g8h8 e6e8 a8e8 e1e8","r":562,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rYTaA","f":"2r2rk1/p2q1ppp/1p2p3/8/4p3/6Q1/PP3PPP/3R2K1 w - - 0 22","m":"d1d7 c8c1 d7d1 c1d1","r":453,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"rYkgZ","f":"7k/6pp/5pb1/3p4/P2Bn3/2P5/r5PP/1R3NK1 b - - 2 32","m":"a2a4 b1b8 g6e8 b8e8","r":493,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rZFS4","f":"r4r1k/1p4pp/pPb1p1q1/P1p1PnP1/2PpN2b/1B1P1Q1K/3B4/R4R2 b - - 0 34","m":"f5g3 f3f8 a8f8 f1f8","r":530,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rZaeK","f":"5r1k/6pp/1p1p4/3Qp3/8/P7/5rPP/2qR3K w - - 0 29","m":"d1c1 f2f1 c1f1 f8f1","r":461,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"rZgA9","f":"2r4k/p2r2pp/8/4p3/8/4K3/PR4PP/2R5 b - - 1 28","m":"c8c1 b2b8 c1c8 b8c8 d7d8 c8d8","r":438,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"rZgoN","f":"6R1/1k2n2Q/4r1p1/pp2r3/2p5/8/6PP/2R4K w - - 0 37","m":"g8e8 e5e1 c1e1 e6e1","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rZrrm","f":"2r2k2/3rqpp1/8/1p3B1R/P2p2P1/5n1P/2PQ2K1/8 b - - 5 35","m":"f3d2 h5h8","r":497,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"rZyg2","f":"1k2r3/ppp5/5p1p/P2P2p1/2P5/1P1Qr2P/4R1P1/4R2K b - - 0 33","m":"e3d3 e2e8","r":495,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove rookEndgame"},{"i":"raKzN","f":"4r1k1/r4ppp/2R5/8/8/8/5PPP/5RK1 b - - 0 22","m":"e8e2 c6c8 e2e8 c8e8","r":523,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rb3ZZ","f":"4r1k1/5ppb/p6p/4Q2P/6P1/5PK1/8/2R5 b - - 0 34","m":"e8e5 c1c8 e5e8 c8e8","r":545,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rbmjN","f":"4r1k1/6pp/4pp2/2P5/8/2r5/P3RPPP/1R4K1 w - - 1 33","m":"b1b5 c3c1 e2e1 c1e1","r":583,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rbyfN","f":"5rk1/5ppp/5q2/p2Pp2P/P3P3/1pP4Q/6P1/6K1 b - - 0 32","m":"f8c8 h3c8 f6d8 c8d8","r":596,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"rc0zf","f":"3b4/1p1k2p1/p1pN2q1/4Q3/8/3P4/PPP5/1K6 w - - 0 36","m":"d6b7 g6g1 e5e1 g1e1","r":492,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rc9Ip","f":"rn2r1k1/pp3ppp/3R4/4N3/8/8/PP2NPPP/4K2R b K - 0 15","m":"e8e5 d6d8 e5e8 d8e8","r":460,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rcKRe","f":"rr4k1/2R2ppp/p3p3/3p2P1/4nP1P/1N2P3/2R5/6K1 b - - 0 29","m":"b8b3 c7c8 a8c8 c2c8","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rdCwn","f":"4r3/1p3pk1/6p1/8/1p4N1/1r6/5PPP/1R4K1 w - - 0 32","m":"b1b3 e8e1","r":505,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rdMvV","f":"1k2N3/1b3p2/2n1p2p/3pP1p1/3P4/b1P5/5PPP/1rBR2K1 w - - 4 38","m":"c1a3 b1d1","r":523,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"rdUgw","f":"4r1k1/1p3ppp/p4n2/5Q2/5p2/8/P4qPP/5R1K w - - 3 27","m":"f1f2 e8e1 f2f1 e1f1","r":433,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rdjCU","f":"5rk1/8/5qpp/8/8/8/PPQ3PP/3R3K w - - 6 44","m":"c2d2 f6f1 d1f1 f8f1","r":490,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"rdl62","f":"6k1/1p1r1ppp/p3p1b1/8/4P3/1P2NP2/P5PP/2R3K1 b - - 1 22","m":"d7d2 c1c8 d2d8 c8d8","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rdqXD","f":"3r2k1/5ppp/p3p3/8/8/2R3P1/4NP1P/1rB3K1 b - - 2 24","m":"d8d2 c3c8 d2d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"reNU1","f":"7k/p5pp/1pn2rp1/3p4/3P4/1QPq4/PP6/2K1R3 b - - 8 35","m":"f6f2 e1e8 f2f8 e8f8","r":573,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rf1o4","f":"r2qr1k1/5ppp/p2p1N2/2p2b2/8/4QN2/PPP2PPP/R3R1K1 b - - 0 17","m":"d8f6 e3e8 a8e8 e1e8","r":416,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rf4PZ","f":"2r3k1/p4ppp/8/P7/8/4Q3/1qr2PPP/R3R1K1 b - - 2 26","m":"b2b7 e3e8 c8e8 e1e8","r":423,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"rfShj","f":"2kr1b1r/p1p5/2p1b3/4p1p1/2P1Qp2/7P/PP2NPPB/R2q1K1R w - - 1 21","m":"a1d1 d8d1","r":461,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rfcIG","f":"4r1k1/p3Bppp/1pp1p3/8/1PP3n1/P1N5/5PPP/3R2K1 b - - 0 18","m":"e8e7 d1d8 e7e8 d8e8","r":563,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rflrW","f":"5rk1/p4ppp/1pR5/8/8/1P6/1r3PPP/R5K1 w - - 0 20","m":"a1a7 b2b1 c6c1 b1c1","r":429,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rg4T0","f":"2kr4/pppq4/5R2/8/4P1p1/1QP1b3/PP4PP/RN4K1 w - - 2 20","m":"g1h1 d7d1 b3d1 d8d1 f6f1 d1f1","r":550,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"rg9gp","f":"2kr4/pp1q4/2p2pNp/1P3Pp1/P7/5Q2/5PPP/R2r2K1 w - - 1 31","m":"a1d1 d7d1 f3d1 d8d1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rgSqE","f":"r5k1/5ppp/1p2p3/pRbr4/N3q3/1P3R2/1P2Q1PP/7K w - - 0 23","m":"e2e4 d5d1 e4e1 d1e1 f3f1 e1f1","r":400,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"rgkvM","f":"1k2r3/ppp1r1p1/6p1/2P2p1q/1P1Q4/P4PP1/6PP/3R1NK1 b - - 2 26","m":"g6g5 d4d8 e8d8 d1d8","r":506,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"rgxMY","f":"4k3/B2npp2/7q/1P1p2p1/1Pb3P1/2R1PP2/3K4/5NN1 b - - 0 27","m":"c4f1 c3c8","r":467,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rgyhO","f":"r2Q1k1r/pp2nppp/4b3/1B2P3/8/4BP2/qPP3PP/2KR3R b - - 3 17","m":"a8d8 d1d8","r":513,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rhRt5","f":"6k1/1p2rpp1/p1n4p/8/2q1QP2/8/PPP3PP/4R2K w - - 0 27","m":"e4c4 e7e1 c4f1 e1f1","r":426,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"rhUx7","f":"7k/2B3pp/8/p1p2r2/1p1p1n2/1P1P4/P5PP/4R1K1 b - - 3 32","m":"f4d3 e1e8 f5f8 e8f8","r":450,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rhWF5","f":"2Q3k1/5ppp/3Rq3/1r6/p3nP2/4B1PP/P7/3R2K1 b - - 0 35","m":"e6c8 d6d8 c8d8 d1d8","r":572,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"riEIy","f":"3r2k1/5p2/p3bPpp/1p6/1P1r4/P1R2B2/5PPP/4R1K1 w - - 3 34","m":"e1d1 d4d1 f3d1 d8d1","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ridE8","f":"6k1/2rb1ppp/4p3/1B6/7P/6P1/P4P2/3R2K1 b - - 0 30","m":"d7b5 d1d8 b5e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rj1xz","f":"2r3k1/p5p1/R6p/1P1n4/P2P4/5N2/5PPP/6K1 w - - 3 37","m":"a6a7 c8c1 f3e1 c1e1","r":500,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rjLIX","f":"4r1k1/1p2r1pp/p1p2p2/N2p4/PP1n4/4P3/2R2PPP/1R4K1 w - - 0 25","m":"e3d4 e7e1 b1e1 e8e1","r":597,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rjPKa","f":"8/3q4/4p1k1/6pp/1P6/3r3Q/5PP1/1R4K1 w - - 1 40","m":"h3h2 d3d1 b1d1 d7d1","r":544,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rjU5u","f":"r5k1/pp1q1ppp/2p2b2/3p4/5B2/P1P4P/1PP1QPP1/4R1K1 b - - 0 23","m":"a8e8 e2e8 d7e8 e1e8","r":466,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rjcLl","f":"1r4k1/p4ppp/2p1p3/5b2/8/2QP1P2/P1P3PP/Rr5K w - - 0 20","m":"a1b1 b8b1 c3e1 b1e1","r":429,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rjz70","f":"r2qkb1r/1p3ppp/p3pn2/3P1Q2/4p3/4B3/PP3PPP/RN1R2K1 w kq - 0 15","m":"d5e6 d8d1","r":430,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"rk5eZ","f":"r4Q1k/1pp3pp/p1b5/4P1q1/2B5/2PP4/P1P3PP/5RK1 b - - 4 18","m":"a8f8 f1f8","r":483,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rklrc","f":"2k5/pp4pp/8/2p2N2/P1P5/r7/5PPP/3R2K1 w - - 0 27","m":"d1d5 a3a1 d5d1 a1d1","r":580,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rl7RJ","f":"3q2k1/Rp1Q1ppp/2p5/2Pp4/1P1P4/7P/6P1/6K1 b - - 0 29","m":"d8d7 a7a8 d7c8 a8c8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"rlAB8","f":"3rqnk1/p4ppp/1pQ2b2/5N2/8/2P1B3/PP3PPP/3R2K1 w - - 4 19","m":"c6e8 d8d1","r":589,"t":"backRankMate hangingPiece master mate mateIn1 middlegame oneMove"},{"i":"rlC9m","f":"2r5/1p2kp1Q/p5p1/3q4/4N3/8/PP3PPP/3R2K1 w - - 0 29","m":"d1d5 c8c1 d5d1 c1d1","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rlFkC","f":"r3r1k1/p2p1ppp/bp6/2pP4/8/8/PPP2PPP/R1B1qQK1 w - - 2 16","m":"f1e1 e8e1","r":536,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rlbUW","f":"3r4/R5pp/6k1/8/P1p5/6B1/3r1PPP/4R1K1 w - - 0 30","m":"e1c1 d2d1 c1d1 d8d1","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rm0NV","f":"4r1k1/5ppp/p2q1n2/8/P7/BP3B2/3P1PPP/R2b2K1 w - - 0 23","m":"a3d6 e8e1","r":433,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rmObY","f":"r5k1/5ppp/3rp3/1p1p4/1P1P4/2RK4/P4PPP/R7 b - - 1 24","m":"a8a4 c3c8 d6d8 c8d8","r":446,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rmOss","f":"3r4/p4p1k/1pn1pPpp/2p5/5PN1/7R/P5PP/R2r3K w - - 7 28","m":"a1d1 d8d1","r":564,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"rnAMM","f":"5Q1k/2q2rpp/8/2p1p3/4P3/1P1P3P/2P3P1/5R1K b - - 0 44","m":"f7f8 f1f8","r":593,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"rnW3o","f":"4r3/2pR2pp/p1N2pk1/1p6/5bP1/7P/PPP2P2/1K6 w - - 3 26","m":"h3h4 e8e1 d7d1 e1d1","r":492,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rnxf8","f":"8/2r1kpp1/5b1p/3Pp3/1r2P3/R1P2N2/5PPP/6K1 w - - 0 26","m":"c3b4 c7c1 f3e1 c1e1","r":496,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ro5Od","f":"1n1r1k2/5p1Q/p7/4R3/8/3B4/b4PPP/1q4K1 w - - 0 28","m":"d3b1 d8d1 e5e1 d1e1","r":416,"t":"backRankMate endgame mate mateIn2 short"},{"i":"roHgh","f":"5r2/p7/1p2p1k1/3p2b1/3B4/2P5/PP4PQ/K7 w - - 0 35","m":"h2g3 f8f1 g3e1 f1e1","r":482,"t":"backRankMate endgame mate mateIn2 short"},{"i":"roh42","f":"3r2k1/5ppp/p2q4/2p5/1p2P3/1P6/P1Q2PPP/3r1RK1 w - - 0 22","m":"f1d1 d6d1 c2d1 d8d1","r":403,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rokki","f":"r4Q1k/p5pp/1q6/2p1R3/6P1/PP1P3P/2P5/5RK1 b - - 0 27","m":"a8f8 f1f8","r":590,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"rp60c","f":"2q3k1/4bppp/1p2p3/1N1p3n/P2P1B2/1Q5P/1P3PP1/6K1 w - - 1 21","m":"f4h2 c8c1 b3d1 c1d1","r":411,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rp75T","f":"3r2k1/5ppb/1RBR3p/4p3/p6P/P5P1/1P3P2/6K1 b - - 0 30","m":"d8d6 b6b8 d6d8 b8d8","r":552,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rpA4c","f":"r1b1rQ1k/1p4pp/p1n5/8/P7/2P1P2q/1P2N3/RNB1KR2 b Q - 2 17","m":"e8f8 f1f8","r":415,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rpDCQ","f":"rnb1rQ1k/p5pp/2p5/4P3/q3P3/2Bn4/PP4PP/R4RK1 b - - 2 22","m":"e8f8 f1f8","r":427,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rpauN","f":"2r3k1/p4pp1/7p/4P3/5P2/8/P2q2PP/3R3K w - - 0 35","m":"d1d2 c8c1 d2d1 c1d1","r":498,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rqCj1","f":"4r3/5pk1/pb5p/5Bp1/8/2P2Q2/PP4PP/3Rq2K w - - 0 34","m":"d1e1 e8e1 f3f1 e1f1","r":436,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rqTl2","f":"6k1/5pp1/p6p/1prBqP2/8/8/P4PPP/4R1K1 w - - 0 28","m":"e1e5 c5c1 e5e1 c1e1","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rqqQS","f":"4r1k1/pB3pp1/2p5/2P4N/1P2rp2/P7/5PPP/R5K1 w - - 4 31","m":"b7c6 e4e1 a1e1 e8e1","r":529,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rqqQa","f":"2b1r1k1/1p1pNppp/5r2/8/4p3/4P3/4KPPP/2R5 b - - 20 31","m":"e8e7 c1c8 e7e8 c8e8","r":536,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"rqsfm","f":"k1Qr4/pp6/3p4/3P4/P3q3/7P/1n2r1PK/2R2R2 b - - 2 28","m":"d8c8 c1c8","r":552,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rr1W2","f":"3r4/1k1r2pp/1pp2b2/8/PP6/6Q1/5PPP/2q1R2K w - - 0 27","m":"e1c1 d7d1 c1d1 d8d1","r":550,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rr5Qe","f":"3r2k1/5p1p/p3n3/4P1bP/1p6/6NQ/PPP3P1/1K3q2 w - - 0 29","m":"g3f1 d8d1","r":429,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rrJoe","f":"6k1/1N3ppp/r4n2/8/4p3/4P3/1P1r1PPP/3R2K1 w - - 0 25","m":"d1d2 a6a1 d2d1 a1d1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rrheo","f":"3r2k1/R4ppp/6b1/4p3/4P3/5P2/4B1PP/7K w - - 0 33","m":"e2c4 d8d1 c4f1 d1f1","r":571,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rsFBg","f":"2r5/1Q3ppq/4pk2/8/7p/8/5PPP/1R4K1 w - - 0 40","m":"b7c8 h7b1 c8c1 b1c1","r":536,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"rsT1P","f":"1r4k1/pN3ppp/2n5/8/P7/8/4R1PR/7K w - - 1 32","m":"b7c5 b8b1 e2e1 b1e1","r":588,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rsY0L","f":"2r2rk1/2p2ppp/pp1p1q2/3P4/2P1Q3/1P6/P4PPP/R3R1K1 b - - 1 17","m":"f8e8 e4e8 c8e8 e1e8","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rsmTS","f":"r5k1/1p4p1/2p1q2p/8/2P5/8/1P3PPP/4R1K1 w - - 0 29","m":"e1e6 a8a1 e6e1 a1e1","r":488,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rtIAy","f":"r6k/pb4pp/pnp2p2/2N5/3P4/5N2/PP3PPP/4R1K1 b - - 0 21","m":"b7c8 e1e8","r":460,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"rtbr8","f":"1rbr2k1/p4ppp/1p1qpn2/2p5/2PP4/1R2QB2/P3NPPP/1R4K1 w - - 2 19","m":"d4c5 d6d1 b1d1 d8d1","r":502,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"ru7tE","f":"r2q1Q1k/pp4pp/2p5/2P5/1P5r/P4R1P/6P1/5R1K b - - 4 28","m":"d8f8 f3f8 a8f8 f1f8","r":505,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ruXTF","f":"k3r3/pp6/2q5/8/1P6/2P2N2/1K1R2PP/8 b - - 2 35","m":"e8e3 d2d8 c6c8 d8c8","r":436,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ruXkv","f":"3r2k1/1p3ppp/n3p3/8/4P1PP/5q2/PPPr4/1K3RQ1 w - - 0 24","m":"f1f3 d2d1 g1d1 d8d1","r":585,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"ruhlX","f":"r5r1/2p1P2k/p6p/1pBp1p2/3P3b/R7/PPP2P1P/1K2R3 w - - 1 30","m":"e1e6 g8g1 e6e1 g1e1","r":540,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ruk1M","f":"5r1k/p4r1p/2p5/3pRB2/1P6/2Pn4/P5PP/5R1K w - - 3 29","m":"f5d3 f7f1 d3f1 f8f1","r":424,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rvTlZ","f":"1k2Q1r1/ppp5/2np4/1q6/3PR2p/P1P3bP/1P1N2P1/1K1R4 b - - 0 26","m":"g8e8 e4e8 c6d8 e8d8","r":416,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rx5PW","f":"4r1k1/3Q3p/1p4p1/5p2/P7/8/5PPP/4rRK1 w - - 3 32","m":"f1e1 e8e1","r":549,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"rxNi4","f":"r1bB1rk1/pp3ppp/3p4/2pP4/1nB5/1P3N2/4RPPP/4R1K1 b - - 3 20","m":"f8d8 e2e8 d8e8 e1e8","r":410,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rxT86","f":"5rk1/pp3p2/4pp2/3P1PbQ/2r1q3/5R2/P5PP/4R2K w - - 2 29","m":"e1e4 c4c1 e4e1 c1e1 f3f1 e1f1","r":545,"t":"backRankMate endgame long mate mateIn3"},{"i":"rxX8T","f":"1k1r4/2p5/1pPq3p/p3p3/P3P3/2P1Q3/5PPP/1R4K1 w - - 1 26","m":"e3g3 d6d1 b1d1 d8d1","r":495,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"rxg4y","f":"r1b2rk1/pp2p1bp/4p1p1/3pP3/R7/1P5Q/1BPPN1PP/3K1q1R w - - 3 21","m":"h1f1 f8f1","r":453,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"rxhsA","f":"4r1k1/pp3pp1/2p1q2p/3p4/3P4/2P5/PP1Q1PPP/5RK1 w - - 0 23","m":"f1e1 e6e1 d2e1 e8e1","r":529,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rydpB","f":"5r1k/p7/1p4pb/3Rp2p/1P2r3/3N4/PQ4PP/3Rq2K w - - 6 34","m":"d1e1 e4e1 d3e1 f8f1","r":585,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ryyAt","f":"2r1kb1r/pp4p1/n5N1/3Q2pp/8/8/PP3PPP/6KR w - - 1 24","m":"g6h8 c8c1 d5d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rzVxw","f":"6k1/1p3ppp/p4n2/P7/1P1p4/2r5/2N1RPPP/6K1 w - - 0 25","m":"c2d4 c3c1 e2e1 c1e1","r":526,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rzcLj","f":"2r2k2/pp3pp1/7p/3r4/8/4P3/PP3PPP/3R2K1 w - - 0 24","m":"d1d5 c8c1 d5d1 c1d1","r":424,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"rzcaA","f":"r4rk1/ppp2ppp/5q2/3P4/5Bb1/5NP1/Pn2QPBP/4R1K1 b - - 0 18","m":"f8e8 e2e8 a8e8 e1e8","r":484,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"rze9y","f":"1k6/ppp5/4rp2/7R/P2p1Pp1/2bP4/2r2PKP/5R2 b - - 0 29","m":"c2a2 h5h8 e6e8 h8e8","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rziG6","f":"6k1/3r3p/1Bn2p2/1p4p1/4p3/8/PP3PPP/4R1K1 w - - 0 29","m":"e1e4 d7d1 e4e1 d1e1","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"rztD3","f":"6k1/2p2ppp/4r3/2P1n3/4P3/3r1P2/R5KP/8 b - - 2 30","m":"d3f3 a2a8 e6e8 a8e8","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s04zj","f":"6k1/1p2rppp/2p3b1/p2Q4/P4B2/1P5P/5KP1/2R5 b - - 0 32","m":"c6d5 c1c8 e7e8 c8e8","r":405,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s0EVJ","f":"1r4k1/5ppp/2R5/3p1P1b/5r2/7P/8/2R2BK1 b - - 2 35","m":"f4f5 c6c8 b8c8 c1c8","r":543,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s0Jjt","f":"r5k1/3Q1ppp/p3p3/1pq1R3/2p5/6N1/P4PPP/3R2K1 b - - 0 22","m":"c5e5 d7d8 a8d8 d1d8","r":563,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"s0Mjl","f":"k4Q1r/pp2n3/1p6/2P4p/PP6/5R1P/6PK/q2r4 b - - 2 27","m":"h8f8 f3f8 d1d8 f8d8 e7c8 d8c8","r":400,"t":"backRankMate endgame long mate mateIn3"},{"i":"s0PyQ","f":"2Q3k1/3q1npp/4R3/3P4/Pp5P/1r6/1PP1R3/2K5 b - - 0 31","m":"d7c8 e6e8 c8e8 e2e8","r":558,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"s0QFA","f":"8/4pBb1/4P2k/p7/r7/8/5PPP/1R4K1 w - - 3 34","m":"b1b7 a4a1 b7b1 a1b1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s0xsI","f":"1rr3k1/1b3ppp/pp2p3/1p2P3/1P6/P3P1P1/2R2PBP/2R3K1 b - - 7 28","m":"b7g2 c2c8 b8c8 c1c8","r":576,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s1Iaj","f":"4r1k1/p1p2ppp/2p1q3/8/P2P4/B1P2R2/2P2PPP/1r1Q2K1 w - - 0 19","m":"d1b1 e6e1 b1e1 e8e1","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s1RIA","f":"6k1/5ppp/r3p3/8/1PRN4/P2r1P2/6PP/6K1 b - - 0 34","m":"a6d6 c4c8 d6d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s1jkq","f":"2r1r1k1/pb3ppp/8/2pq4/3pp3/B4P1P/PPP1Q1P1/R3R1K1 b - - 0 21","m":"e4f3 e2e8 c8e8 e1e8","r":565,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"s1xpC","f":"6k1/p5pp/1r6/5pN1/3rpP2/8/6PP/3R3K w - - 0 31","m":"d1d4 b6b1 d4d1 b1d1","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s3Ffk","f":"rnbk1Q1r/1pqpn2p/p3p1p1/2p3pB/4P3/2NP4/PPP3PP/R1B2RK1 b - - 0 12","m":"h8f8 f1f8","r":415,"t":"backRankMate mate mateIn1 oneMove opening"},{"i":"s3bmO","f":"5rk1/5ppp/p1r1p3/4q3/2pRP3/8/PPQ2P1P/3R3K b - - 6 22","m":"f8c8 d4d8 c8d8 d1d8","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s3ibN","f":"6k1/4pp1p/1r1p2p1/2p5/8/5N2/5PPP/R5K1 w - - 0 27","m":"a1a7 b6b1 f3e1 b1e1","r":520,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s3oCS","f":"Q1r3k1/5ppp/4p1q1/p3P3/1nP5/7P/1P1R1PP1/K2R4 b - - 0 27","m":"c8a8 d2d8 a8d8 d1d8","r":590,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s3vb1","f":"6k1/7p/b7/5Q2/8/2P5/r4PPP/4R1K1 w - - 5 32","m":"e1e6 a2a1 f5b1 a1b1 e6e1 b1e1","r":523,"t":"backRankMate endgame long mate mateIn3"},{"i":"s4SED","f":"3r3k/pp3p1P/2p1p3/7R/8/7P/PPPrBq2/1K2Q3 w - - 0 29","m":"e1f2 d2d1 e2d1 d8d1","r":577,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"s4YXj","f":"1Q4k1/5ppp/4b3/p2p4/8/6P1/q1r3BP/4R2K b - - 1 24","m":"c2c8 b8c8 e6c8 e1e8","r":533,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"s54va","f":"2kr4/ppp3pp/2n1N3/4P3/8/2n5/5rPP/R1B2R1K w - - 0 19","m":"f1f2 d8d1 f2f1 d1f1","r":563,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"s6JLo","f":"2kr1b1r/p1p2p1p/2p3p1/8/4p3/2P5/PP2q1PP/RNB1R2K w - - 0 15","m":"e1e2 d8d1 e2e1 d1e1","r":461,"t":"backRankMate fork mate mateIn2 middlegame short"},{"i":"s6UkF","f":"1k5r/pp4p1/2pQp1q1/4Pp2/5P2/2P5/PP6/2KR4 b - - 3 29","m":"b8a8 d6d8 h8d8 d1d8","r":540,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"s6br7","f":"3r2k1/5ppp/1pR5/p7/3B4/6P1/PP3P1P/6K1 b - - 0 28","m":"d8d4 c6c8 d4d8 c8d8","r":407,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"s6xkb","f":"5rk1/pp3p2/6p1/3Pnp2/6q1/1B6/PPP3PP/3RQ2K w - - 0 23","m":"e1e5 g4d1 e5e1 d1e1","r":493,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"s7OFg","f":"r1bQ1k2/4nppp/p3p3/q7/4P2P/1Pp2P2/P1P5/1K1R1BNR b - - 3 19","m":"a5d8 d1d8","r":420,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"s7sAF","f":"r3r3/1pp2ppp/p1n2n2/5k2/B2P1B2/2P5/PP3PPP/RN4K1 w - - 3 16","m":"f4c7 e8e1","r":406,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"s89od","f":"r1r3k1/1q3ppp/p3p3/4P3/3B4/3P1N2/5PPP/1R4K1 w - - 0 23","m":"b1b7 c8c1 f3e1 c1e1","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s8R6H","f":"R3brk1/1p4pp/2q1p3/3nBp2/1P1P4/4PB2/3Q1PPP/6K1 w - - 4 23","m":"d2a2 c6c1 f3d1 c1d1","r":474,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"s8xm2","f":"3r3k/6pp/8/7q/8/2P2RP1/3R1P1P/nK6 b - - 0 35","m":"d8d2 f3f8","r":504,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"s9BaL","f":"5rk1/ppp2rp1/7p/2PR4/1P1Pp3/P3b3/1B2Q1PP/R4q1K w - - 2 24","m":"a1f1 f7f1 e2f1 f8f1","r":554,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"s9ED0","f":"8/pk3ppp/1prR1nb1/2P5/8/B7/PR3PPP/6K1 w - - 1 27","m":"c5b6 c6c1 d6d1 c1d1","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s9cjL","f":"2r3k1/3b4/4p3/3p4/P7/1pQ5/5PPP/6K1 w - - 1 48","m":"c3b3 c8c1 b3d1 c1d1","r":519,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s9eo1","f":"r5k1/5ppq/5b2/4p3/3p4/6P1/Q4P1P/B1RR2K1 b - - 0 36","m":"a8a2 c1c8 f6d8 c8d8","r":471,"t":"backRankMate endgame mate mateIn2 short"},{"i":"s9tHh","f":"2r3k1/5ppp/4p3/p2pP3/P2P1P1P/6P1/2Q5/1R3K2 b - - 0 29","m":"c8c2 b1b8 c2c8 b8c8","r":504,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sAOIc","f":"4r1k1/pp5p/5qp1/2p5/8/1P6/2B2PPP/Q5K1 w - - 0 31","m":"a1f6 e8e1","r":430,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sAvnk","f":"4Q3/p2r2pk/Pp3r1p/1Pb1p3/4p3/6R1/6PP/R3N2K w - - 2 38","m":"e8d7 f6f1","r":445,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sBJma","f":"1k1Q3r/ppp3pp/1q2p3/2b5/8/4B3/PPP2PPP/2KR4 b - - 4 18","m":"h8d8 d1d8","r":568,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sBYeG","f":"8/B2bk3/4ppp1/1P6/r7/2p5/2R2PPP/6K1 w - - 0 32","m":"b5b6 a4a1 c2c1 a1c1","r":595,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sBnA6","f":"r3r1k1/4b1p1/5pQp/1P2pP2/8/1PB4R/6PP/q6K w - - 0 33","m":"c3a1 a8a1","r":554,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sBwik","f":"8/5ppk/8/4p3/1P4p1/3q4/2r2PPP/3R2K1 w - - 0 44","m":"d1d3 c2c1 d3d1 c1d1","r":403,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sCIj6","f":"5rk1/1pp4p/p2p1qpb/3Pp3/P3P3/2N5/1PP1Q1PP/R6K w - - 0 23","m":"a1f1 f6f1 e2f1 f8f1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sChsi","f":"4r1k1/5ppp/R2p4/1p6/1P2B3/7P/5PPK/8 b - - 0 24","m":"e8e4 a6a8 e4e8 a8e8","r":454,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sClQC","f":"5rk1/6pp/8/p2pn2Q/Pp6/1Pp5/2N3PP/4Rq1K w - - 7 29","m":"e1f1 f8f1","r":504,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sD3uu","f":"k1Qr4/pp4pp/3r3n/3qN3/8/6P1/PP2PP1P/2R1KN2 b - - 2 22","m":"d8c8 c1c8","r":435,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sDEEx","f":"8/p4kpp/2p1pb2/3r4/8/1NP1q3/PP3PPP/4R1K1 w - - 0 23","m":"e1e3 d5d1 e3e1 d1e1","r":433,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sEOOO","f":"r1b4k/1pQ1q1pp/p1n5/8/4P3/2N5/PP2B1PP/5R1K b - - 4 21","m":"e7c7 f1f8","r":478,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sEqsG","f":"r1bR2k1/4rppp/p1p1p3/8/Np6/5P2/PPP1B1PP/2K5 b - - 1 17","m":"e7e8 d8e8","r":484,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"sFBg2","f":"4r1k1/pppb2pp/3p1q2/3P4/3Q4/2P5/P4PPP/R1B3K1 w - - 0 19","m":"d4f6 e8e1","r":599,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sFZDi","f":"6nr/1R3pp1/2k1p2p/4P3/3r1P2/BP3R2/6PP/7K w - - 1 23","m":"b7f7 d4d1 f3f1 d1f1","r":466,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sFdZ9","f":"2r3k1/1pr4p/p7/4Qp2/8/1P6/5PPP/1R4K1 w - - 1 46","m":"e5f5 c7c1 b1c1 c8c1","r":496,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"sFj8G","f":"8/p1R1b1k1/1p1p3p/3Pprp1/8/B2P4/6PP/2Q2q1K w - - 2 29","m":"c1f1 f5f1","r":421,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sFvUo","f":"5rk1/2p1Rpbp/p4np1/6Q1/1p6/3rB3/PP2NPPP/2q3K1 w - - 0 18","m":"e2c1 d3d1","r":431,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sG2Qc","f":"1rr3k1/5ppp/5q2/3PRb2/3P4/pPQ2N1P/B4PP1/K3R3 b - - 0 27","m":"c8c3 e5e8 b8e8 e1e8","r":429,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"sGLoU","f":"r3b2k/4Q2p/3p2p1/3P4/1pP2P2/1p3B2/P5PP/7K w - - 0 36","m":"a2b3 a8a1 f3d1 a1d1 e7e1 d1e1","r":552,"t":"backRankMate endgame long mate mateIn3"},{"i":"sGXVN","f":"2r3k1/3R1ppp/8/p2p4/3P4/1P6/P1r2PPP/R5K1 w - - 3 22","m":"d7d5 c2c1 a1c1 c8c1","r":535,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sGXuD","f":"5r1k/6pp/p7/1p6/2p5/5QP1/P6P/4R2K b - - 0 33","m":"f8f3 e1e8 f3f8 e8f8","r":593,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sGhIG","f":"3r2k1/pp3p1p/2p1pbp1/8/N3q3/8/PPQ2PPP/6K1 w - - 0 20","m":"c2e4 d8d1 e4e1 d1e1","r":532,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sGrxF","f":"6k1/pp2rp1p/2q3p1/8/3N4/1Q6/PP3PPP/3b2K1 w - - 0 24","m":"d4c6 e7e1","r":517,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sH1A4","f":"4r3/pp3kp1/3p2n1/2pP2P1/2P5/7Q/PP6/K3q2R w - - 2 29","m":"h1e1 e8e1","r":430,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sH2ou","f":"6k1/ppp2ppp/2n1b3/4P3/1PP3P1/3R3P/P6K/r7 b - - 0 30","m":"c6b4 d3d8","r":420,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sHQhT","f":"8/p2k3p/3r2p1/2R1np2/8/B7/P4PPP/6K1 w - - 1 32","m":"c5e5 d6d1 e5e1 d1e1","r":402,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sHjrW","f":"3Q2rk/ppp2Rpp/1q1p4/4p3/3n4/1B4PP/P1P3PK/5R2 b - - 0 25","m":"g8d8 f7f8 d8f8 f1f8","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sHnJv","f":"r1b1nQ1k/1pqn2pp/p7/2p1P1B1/8/2N5/PPP3PP/R4RK1 b - - 2 18","m":"d7f8 f1f8","r":566,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sI4s4","f":"8/1R6/7r/2k1BP2/2B1P3/8/PPP5/1K6 w - - 1 45","m":"b7b3 h6h1 c4f1 h1f1","r":486,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sICml","f":"5k2/1rN1npp1/3R3p/pp6/6P1/2P5/PP3P1P/5K2 b - - 0 28","m":"b7c7 d6d8","r":580,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sILvD","f":"6k1/pp3pbp/2p2np1/4p3/3rP3/2N2B2/PPP2PPP/3R2K1 w - - 2 16","m":"c3e2 d4d1","r":461,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"sITFy","f":"r1b4k/1p1p2pp/p1p3n1/2P2R2/1P2P3/1Bq5/P5PP/5R1K b - - 4 28","m":"d7d6 f5f8 g6f8 f1f8","r":534,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"sIWVn","f":"2r3k1/R4ppp/4p3/3p1P2/8/8/P4qPP/5R1K w - - 1 25","m":"f1f2 c8c1 f2f1 c1f1","r":419,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sIZgJ","f":"4r1k1/p4ppp/1p2Q3/8/8/8/PP3PPP/3R2K1 b - - 0 23","m":"e8e6 d1d8 e6e8 d8e8","r":486,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sIzu2","f":"1r4k1/5ppp/8/3PP3/R1b5/2P1K3/p5PP/8 b - - 0 28","m":"b8b1 a4a8 b1b8 a8b8","r":447,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sJ5km","f":"r5k1/5p1p/b2Bp1pQ/3pP3/p2q4/8/PP3PPP/2R3K1 w - - 0 25","m":"c1c2 d4d1","r":536,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sJ9ar","f":"1r2r1k1/pppnq1bp/3p2p1/5p2/2PPP3/1P3B1P/P1Q2PPB/3RR1K1 w - - 0 19","m":"e4f5 e7e1 d1e1 e8e1","r":504,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"sJxti","f":"rr4k1/5ppp/4b3/pN2P2n/2p5/P4PP1/1PPRB2P/2KR4 b - - 0 21","m":"b8b5 d2d8 a8d8 d1d8","r":587,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"sK5mB","f":"2r1Q2k/2N3pp/8/5p2/p4P2/P1q5/5PPP/4R1K1 b - - 1 28","m":"c8e8 e1e8","r":509,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sK6FI","f":"4rk2/p5pp/bp1r4/5p2/8/1BP5/P4PPP/3R2KR w - - 0 23","m":"d1d6 e8e1","r":502,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sKVbc","f":"r6k/p5pp/8/2P2Q2/8/P1q2P2/4p1PP/4R2K w - - 0 30","m":"f5e4 c3e1","r":557,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"sKYU1","f":"2r4k/p5pp/1p6/1P1pp3/4b3/8/P2K1R2/8 b - - 3 43","m":"c8c4 f2f8","r":591,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"sKlAu","f":"2r2rk1/pp2pp1p/6p1/4q3/8/P7/1P3PPP/RN2R1K1 w - - 0 18","m":"e1e5 c8c1 e5e1 c1e1","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sL1G2","f":"3r2k1/p3ppbp/6p1/8/8/4BN2/2q2PPP/2R3K1 w - - 0 26","m":"c1c2 d8d1 f3e1 d1e1","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sLS08","f":"2r3k1/5ppp/p2R4/1q5Q/2b1p3/4P2P/1P1R2PK/4r3 b - - 1 31","m":"b5h5 d6d8 c8d8 d2d8","r":469,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sLSp6","f":"7r/2pk1p1p/Q5p1/3r4/8/8/PPP2PPP/1K1q3R w - - 3 24","m":"h1d1 d5d1","r":436,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"sLaU1","f":"6k1/1p2rpbp/1p4p1/3B4/P1NP4/2P5/1r3PPP/R2b2K1 w - - 0 23","m":"c4b2 e7e1","r":476,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sLhkB","f":"1r3rk1/p1q3pp/5p2/4n3/4P3/3P3Q/P4PPP/2R3K1 w - - 0 23","m":"c1c7 b8b1 c7c1 b1c1","r":436,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sMBIk","f":"6k1/4pp1p/r5p1/2P5/1R1b4/8/5PPP/6K1 w - - 0 38","m":"b4d4 a6a1 d4d1 a1d1","r":454,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sMGue","f":"1k6/ppp5/8/7B/5b1P/1KP5/1P5r/6R1 b - - 0 37","m":"h2h4 g1g8","r":491,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sNDQQ","f":"3r2k1/ppR2ppp/8/8/8/1P2P3/P2r1PPP/1R4K1 w - - 1 21","m":"c7b7 d2d1 b1d1 d8d1","r":533,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sNmKz","f":"8/ppq3k1/7p/3p1QpB/1P1np3/P5P1/6PP/7K w - - 0 28","m":"f5d5 c7c1 h5d1 c1d1","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sNpLq","f":"6k1/b1B4p/3n2p1/5p2/1r3R2/8/P5PP/7K w - - 0 32","m":"c7d6 b4b1 f4f1 b1f1","r":580,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sO60v","f":"3r2k1/p4pp1/7p/4p3/8/1N2P1Q1/P3bPPP/q5K1 w - - 0 24","m":"b3a1 d8d1","r":464,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sO7Ef","f":"4r3/pp3p2/6pp/6k1/8/1B6/PP4PP/5R1K w - - 2 31","m":"f1f7 e8e1 f7f1 e1f1","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sOGGi","f":"2r5/1p4k1/1p6/3PR3/8/P7/1P2pPPP/6K1 w - - 2 33","m":"e5e2 c8c1 e2e1 c1e1","r":472,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sOi4M","f":"3q1rk1/5ppp/8/p3R3/1p6/QP6/P5PP/7K w - - 0 27","m":"a3a5 d8d1 e5e1 d1e1","r":502,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sOprT","f":"5rk1/p1R1Rpp1/r6p/1pp5/P6N/1P6/6PP/7K w - - 0 34","m":"a4b5 a6a1 e7e1 a1e1","r":547,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sPLEO","f":"r2r2k1/p4ppb/2p5/7p/5B2/4RNP1/Pb3P1P/4R1K1 b - - 1 21","m":"d8d7 e3e8 a8e8 e1e8","r":488,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"sPjsg","f":"1k6/ppp4p/2n5/5B2/6p1/PPr5/2P2KPP/4R3 b - - 1 27","m":"c6d4 e1e8","r":496,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"sPybc","f":"2r3k1/1p4pp/p7/3r1p2/8/8/PP3PPP/3R2K1 w - - 0 25","m":"d1d5 c8c1 d5d1 c1d1","r":417,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sQ6vn","f":"r2Q1knr/1b2ppbp/p5p1/1pp5/4P3/2P1BN2/qPN1BPPP/2KR3R b - - 2 13","m":"a8d8 d1d8","r":429,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sQ8xr","f":"4r2k/4r1pp/1n3p2/2p1pRP1/4P3/2BP3P/8/5R1K b - - 0 39","m":"f6g5 f5f8 e8f8 f1f8","r":485,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sQNND","f":"r1r3k1/5ppp/p2p1b2/8/2QP4/P7/1P2R1PP/4R1K1 b - - 0 26","m":"c8c4 e2e8 a8e8 e1e8","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sQPX1","f":"3r2k1/p2r1ppp/1B6/3p4/2p5/2Pn2PP/PPN1RPK1/4R3 b - - 0 30","m":"a7b6 e2e8 d8e8 e1e8","r":464,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sQQFC","f":"4r1k1/4Nppp/8/1p6/3P4/2R1B3/5PPP/5qNK b - - 1 30","m":"e8e7 c3c8 e7e8 c8e8","r":576,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sQd2i","f":"7k/pp4pp/8/3R4/4pb2/P5PP/1P3r2/6K1 b - - 2 33","m":"f4g3 d5d8 f2f8 d8f8","r":535,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sQwdB","f":"4r1k1/p1p2p2/2p3bp/3p2p1/8/2P2QB1/P1P2PPP/1R2q1K1 w - - 1 22","m":"b1e1 e8e1","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sR0eY","f":"4r1k1/5p1p/p2q1npQ/1p2P3/2p5/2P2B2/P4PPP/6K1 w - - 0 29","m":"e5d6 e8e1","r":517,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sRDGf","f":"4r3/5k2/p2P2R1/1p3p2/8/2NB1P2/PPP5/1K6 w - - 1 30","m":"d3f5 e8e1 c3d1 e1d1","r":457,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sRrEI","f":"6k1/5ppp/P7/2Np1P2/5p2/2b2P1P/4r3/1R4K1 b - - 1 33","m":"e2a2 b1b8","r":464,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sS0ig","f":"4r1k1/1p3ppp/2p5/p7/P3Q3/8/1P4PP/3R2K1 b - - 0 28","m":"e8e4 d1d8 e4e8 d8e8","r":540,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sS2VX","f":"r1bq1Q1k/pp4pp/2pp4/4P3/2B1P3/1P6/P1P3PP/b4R1K b - - 1 18","m":"d8f8 f1f8","r":509,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sSAF4","f":"4r2k/pp4pp/1Bb3r1/3p4/2Q1R3/P1P5/5PPP/4R1K1 b - - 0 25","m":"d5c4 e4e8 c6e8 e1e8","r":466,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sSVj2","f":"rn5k/p5pp/6p1/2pR4/6P1/5B1P/PP1B1q2/2K4R b - - 0 23","m":"f2f3 d5d8 f3f8 d8f8","r":571,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sSiL1","f":"2Q5/6qk/4p1p1/p7/1p3P2/3P4/6PP/7K w - - 1 36","m":"c8e6 g7a1 e6e1 a1e1","r":519,"t":"backRankMate endgame mate mateIn2 queenEndgame short"},{"i":"sTKNw","f":"6k1/pP3pp1/4p2p/1r2P3/5P2/8/6PP/3R3K w - - 1 35","m":"d1d7 b5b1 d7d1 b1d1","r":520,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sThk2","f":"4r1k1/ppp3q1/3p2pp/3Pr3/2P5/1P4Q1/P4PPP/R4RK1 w - - 1 21","m":"f1e1 e5e1 a1e1 e8e1","r":462,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sUBcF","f":"1rR3k1/pp3ppp/4p3/4n3/P2rP3/7P/5PP1/2R3K1 b - - 1 27","m":"b8c8 c1c8 d4d8 c8d8","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sUQst","f":"4r3/1R6/8/2Q2ppp/P2P4/1P6/1k3PPP/6K1 w - - 0 43","m":"a4a5 e8e1","r":526,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"sUVFG","f":"4r1k1/N4pp1/8/3p2p1/P1b5/6Q1/5PPP/2R1q1K1 w - - 1 25","m":"c1e1 e8e1","r":493,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sUWet","f":"6k1/5ppp/2R1b3/8/PP3P2/3r4/6PP/4K3 b - - 0 36","m":"e6b3 c6c8 d3d8 c8d8","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sUbAZ","f":"3rQ1k1/5ppp/8/3q4/8/1P6/P4PP1/4R1K1 b - - 6 29","m":"d8e8 e1e8","r":417,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"sVPwC","f":"r5k1/5ppp/p2R4/4p3/4P3/8/PPr2PPP/3R2K1 b - - 1 21","m":"c2b2 d6d8 a8d8 d1d8","r":444,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sVcdW","f":"3r3k/1pp2rp1/7B/p2nQ3/P7/3P4/1P3qPP/3RR2K w - - 2 25","m":"e1f1 f2f1 d1f1 f7f1","r":588,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"sVjmc","f":"2r3k1/5p2/p3pPp1/1p5p/3Q3P/8/PP4B1/K1qR4 w - - 3 32","m":"d1c1 c8c1","r":484,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sWZvI","f":"k4R1r/pp2n3/2p1P2p/2Ppn1p1/3P2q1/8/PPKB4/5R2 b - - 0 37","m":"h8f8 f1f8 e7c8 f8c8","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sWaHg","f":"3Rb3/2r3k1/5ppp/1p1B4/1P6/8/6PP/7K w - - 0 49","m":"d8e8 c7c1 e8e1 c1e1","r":436,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sWeXk","f":"r2r2k1/pb3ppp/1p2p3/2n5/2B2P2/1P2PN2/P2R2PP/3R2K1 b - - 1 17","m":"b7f3 d2d8 a8d8 d1d8","r":457,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"sWvJR","f":"3r2k1/5pp1/1p2p2p/8/4q3/1PP5/1P3PPP/4R1K1 w - - 0 26","m":"e1e4 d8d1 e4e1 d1e1","r":493,"t":"backRankMate endgame master mate mateIn2 rookEndgame short"},{"i":"sX2QJ","f":"1k2rr2/pp4Q1/3q3p/2p5/5P2/8/PP4P1/K2R4 w - - 0 33","m":"d1d6 e8e1 d6d1 e1d1","r":415,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"sXtTg","f":"k1Q1r3/pp4pp/8/8/nP1q1P2/B3r3/6PP/R1R4K b - - 2 25","m":"e8c8 c1c8","r":558,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sY55c","f":"4r3/p5QR/5Bp1/2P2k1p/4rp2/8/PP3PPP/R5K1 w - - 8 35","m":"h7h6 e4e1 a1e1 e8e1","r":587,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sYTg4","f":"4r1k1/Q4pbp/3n2p1/1p6/pp1N4/3P4/5NPP/1R2r1K1 w - - 1 30","m":"b1e1 e8e1","r":460,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sZ5It","f":"6k1/p5p1/P1r4p/3n1p2/8/8/5PPP/3R2K1 w - - 1 33","m":"d1d5 c6c1 d5d1 c1d1","r":425,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sZ9U2","f":"3r2k1/Q2pqppp/8/pN1p4/1p6/1P6/r4PPP/4R1K1 w - - 0 30","m":"e1e7 a2a1 e7e1 a1e1","r":589,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sZHXf","f":"3r2k1/p4p1p/2n2pN1/1p6/2p3P1/P3b2P/BPP5/2K3NR w - - 1 23","m":"c1b1 d8d1","r":407,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sZVDj","f":"2Q2rk1/3R1ppp/8/1pP5/1q6/7P/5PP1/3R2K1 b - - 0 31","m":"f8c8 d7d8 c8d8 d1d8","r":481,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"sZu9k","f":"3r4/2p2pqk/6pp/8/p3B3/5R2/2P2PPP/3R2K1 w - - 0 28","m":"d1d8 g7a1 d8d1 a1d1","r":572,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sZv21","f":"2R3k1/4nppp/5q2/2Q1p3/4P1B1/3P2PP/2P2PK1/r7 b - - 0 33","m":"e7c8 c5c8 f6d8 c8d8","r":589,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sa0ab","f":"k1Qr2nr/pp4pp/5p2/q2p4/1b1NPB2/3P4/PP5P/1KR2R2 b - - 3 27","m":"d8c8 c1c8","r":575,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sa6kV","f":"r1b1r1k1/2p1Nppp/1p2p3/p1n1P3/P1B5/4PP2/1P4PP/R1BR2K1 b - - 0 16","m":"e8e7 d1d8 e7e8 d8e8","r":499,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"saPhZ","f":"4r1k1/4Bppp/4p3/1n6/4nP2/8/1PP3PP/3R1RK1 b - - 0 24","m":"e8e7 d1d8 e7e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"saUoa","f":"3r2k1/5ppp/6b1/3P4/p1R3P1/5P1P/PPP5/2K5 b - - 0 25","m":"d8d5 c4c8 d5d8 c8d8","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sahBU","f":"5rk1/1p3ppb/2p4p/p4Pq1/P3Q2N/2P2BPP/1P1r1P2/4R1K1 b - - 6 26","m":"f8d8 e4e8 d8e8 e1e8","r":555,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"satPh","f":"r3r1k1/3pq2p/1p3pp1/p7/2bP1b2/2P1B2Q/PP3PPP/R3R1K1 w - - 0 21","m":"e3f4 e7e1 a1e1 e8e1","r":552,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"sbIez","f":"r6k/3Bq1pp/p1p3b1/1pPpP3/8/2P1B1P1/P4Q1P/5RK1 b - - 0 24","m":"e7d7 f2f8 a8f8 f1f8","r":456,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"sbjhw","f":"6k1/ppp2ppp/2p1r3/7P/4PK2/2Nb4/P7/3R4 b - - 2 26","m":"d3c4 d1d8 e6e8 d8e8","r":526,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sbm8q","f":"3r2k1/p4ppp/1p1Q4/1Pp5/8/8/PP3PPP/4R1K1 b - - 0 22","m":"d8d6 e1e8","r":414,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"sbx1E","f":"2kr3r/p1p1bppp/2p5/8/8/8/PP3PPP/R1B1R1K1 w - - 0 16","m":"e1e7 d8d1 e7e1 d1e1","r":446,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sc0xf","f":"6k1/5ppp/1r6/p1p5/P2p4/2PR2PP/5PK1/4r3 b - - 0 37","m":"d4c3 d3d8 e1e8 d8e8","r":461,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"scXOV","f":"4r1k1/pppRbrpp/4p2B/4P3/4p1Q1/1P6/6PP/3R1q1K w - - 2 21","m":"d1f1 f7f1","r":531,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sd10U","f":"7k/2p1q1pp/rp1p4/2r1P3/3Q1P2/pP6/P1P3PP/2KR3R b - - 0 21","m":"d6e5 d4d8 e7d8 d1d8","r":582,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sdppd","f":"2R5/4r1pk/5p1p/2p2P2/PpPp4/3P4/1P4PP/5R1K w - - 3 34","m":"f1f2 e7e1 f2f1 e1f1","r":452,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sdtWq","f":"1r1Q2k1/1q3ppp/2p1b3/p7/N3p3/1P2P1P1/P1P4P/2KRR3 b - - 0 20","m":"b8d8 d1d8","r":426,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"se1sT","f":"r5k1/3q1p2/6p1/3r3p/P3p3/1Q6/2P2PPP/R4RK1 w - - 0 28","m":"f1d1 d5d1 a1d1 d7d1","r":543,"t":"backRankMate endgame mate mateIn2 short"},{"i":"se4LQ","f":"r6k/6pp/1p6/8/4P3/1q3P2/6PP/1R5K w - - 0 30","m":"b1b3 a8a1 b3b1 a1b1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"segB0","f":"4r1k1/1p3pb1/3P3p/1PP3p1/1N6/8/5RPP/3Rr2K w - - 1 37","m":"d1e1 e8e1 f2f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"seqD3","f":"6k1/5ppp/4p3/p2pP3/3P1P2/2r5/6PP/1R4K1 b - - 0 27","m":"c3c4 b1b8 c4c8 b8c8","r":534,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"seu7s","f":"2r2rk1/p5pp/5p2/1p2p3/3qQ3/1P6/PR3PPP/3R2K1 w - - 0 21","m":"d1d4 c8c1 d4d1 c1d1 e4e1 d1e1","r":463,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"sfOo5","f":"3r3k/2R3pp/p7/1p1B4/5P2/P2p3P/1P3KP1/8 b - - 0 32","m":"d8d5 c7c8 d5d8 c8d8","r":595,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sfT6I","f":"6k1/p1r3pp/3npp2/1p1p4/8/1Q3P2/P3N1PP/2q4K w - - 0 31","m":"e2c1 c7c1 b3d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sgCtY","f":"8/p3R1pk/1pP4p/3r4/1P2p3/8/P4PPP/6K1 w - - 1 31","m":"e7e4 d5d1 e4e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sgEYA","f":"6k1/p4pp1/1p2p2p/8/3P4/R7/P1r2PPP/6K1 w - - 0 27","m":"a3a7 c2c1","r":446,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"sgIlQ","f":"3r2k1/pp3ppp/4p3/Q7/2Bqb1P1/PP5P/5P2/5RK1 b - - 1 25","m":"e4d5 a5d8","r":577,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"sgTJ2","f":"1rb1r1k1/pp3ppp/8/8/2pR1P2/2P3PP/P1P1P1B1/2K4R b - - 3 19","m":"e8e2 d4d8 e2e8 d8e8","r":532,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sglvs","f":"5r2/5p1k/1p3p1p/p2r4/P3q3/7Q/1PP3PP/4R2K w - - 0 36","m":"e1e4 d5d1 e4e1 d1e1","r":520,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"shDUk","f":"b1r5/5pkp/p3pbp1/1p6/1P1PNQ2/P2R1P2/6PP/1Bq4K w - - 3 33","m":"f4c1 c8c1 d3d1 c1d1","r":484,"t":"backRankMate fork mate mateIn2 middlegame short"},{"i":"shNC1","f":"1rR3k1/p2q1ppp/4p3/8/P1QPn3/1r2B3/5PPP/2R3K1 b - - 1 27","m":"b8c8 c4c8 d7c8 c1c8","r":504,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"shSl0","f":"5rk1/1b5p/pn1p2p1/1p6/4P1Q1/P1NB4/1PP2qPP/4R2K w - - 6 30","m":"e1f1 f2f1 d3f1 f8f1","r":565,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"shszj","f":"r4k2/1R4pp/2Qp4/4p1p1/1q2P3/8/5PPP/6K1 w - - 0 34","m":"b7b4 a8a1 b4b1 a1b1 c6c1 b1c1","r":403,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"shz5z","f":"1rR3k1/3p1ppp/1q2p3/n2pP3/P7/2Q3P1/1P3PKP/8 b - - 1 27","m":"b8c8 c3c8 b6d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"si07e","f":"2r2R1r/p4Qp1/1kq1p2p/1p1pP3/3P4/1N6/PP3PPP/6K1 w - - 7 29","m":"f8h8 c6c1 b3c1 c8c1","r":550,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"si1zL","f":"rn4k1/pp3ppp/4p3/q2p4/3PPB2/5B2/P4PPP/2Q3K1 b - - 0 18","m":"d5e4 c1c8 a5d8 c8d8","r":483,"t":"backRankMate endgame mate mateIn2 short"},{"i":"siFBN","f":"r5k1/p3Qppp/3R1n2/q7/8/5P2/P5PP/4R2K w - - 6 28","m":"e7b7 a5e1","r":561,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"sie7Q","f":"3R1nk1/1p3p1p/5Q2/pq6/8/2P5/5PPP/6K1 w - - 1 39","m":"c3c4 b5b1 d8d1 b1d1","r":595,"t":"backRankMate endgame mate mateIn2 short"},{"i":"simiY","f":"8/p3p2p/5kp1/1P6/P7/r7/6PP/3R3K w - - 0 35","m":"d1d4 a3a1 d4d1 a1d1","r":418,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sjKqJ","f":"3r3k/6pp/p4p2/1p2pP2/4P3/2q5/6PP/Q6K w - - 0 33","m":"a1c3 d8d1 c3e1 d1e1","r":413,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"sjOMA","f":"k1r5/pp3Rp1/8/2QP3p/8/7P/3P3P/6K1 b - - 0 27","m":"c8c5 f7f8 c5c8 f8c8","r":429,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sjqbu","f":"1rb3k1/2pp1ppp/p1Q5/4P2q/2P5/1P3PB1/P5PP/3R1RK1 b - - 0 20","m":"d7c6 d1d8","r":452,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sk6H6","f":"r3r1k1/5pp1/p1Q4p/2P5/3q4/1p6/5PPP/3R2K1 w - - 0 30","m":"d1d4 e8e1","r":504,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"skPfh","f":"r5k1/pp3rp1/7p/8/2Q5/8/PPP3PP/5q1K w - - 0 28","m":"c4f1 f7f1","r":478,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"skUsI","f":"3r1k2/pp1r1pp1/7p/3N4/1P2Pq2/P7/B3Q1PP/3R3K w - - 0 26","m":"d5f4 d7d1 e2d1 d8d1","r":546,"t":"backRankMate endgame mate mateIn2 short"},{"i":"skpBT","f":"3r4/6pk/4p2p/1R1P1p2/8/1P3N2/P1R2PPP/b5K1 w - - 0 35","m":"d5e6 d8d1 f3e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sl5TO","f":"2r5/pp4p1/8/4Nk1p/3R1B2/P7/1P3PPP/1b4K1 w - - 1 29","m":"f4g3 c8c1 d4d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"slHRT","f":"8/5pkp/4p1p1/4R3/P7/1r6/5PPP/2R3K1 w - - 0 38","m":"c1b1 b3b1 e5e1 b1e1","r":517,"t":"backRankMate endgame hangingPiece mate mateIn2 rookEndgame short"},{"i":"sm7qo","f":"8/2P2k2/r4ppp/3pp3/8/5P1P/5PPB/6K1 w - - 0 34","m":"c7c8q a6a1 c8c1 a1c1","r":538,"t":"backRankMate endgame mate mateIn2 short"},{"i":"smDvJ","f":"4r1k1/p1p3pp/2p2p2/3p4/3P3N/2P5/P4rPP/5R1K w - - 0 27","m":"f1f2 e8e1 f2f1 e1f1","r":577,"t":"backRankMate endgame mate mateIn2 short"},{"i":"smc3h","f":"r5k1/5ppp/2rPp3/R1p1P3/2P2PP1/3K3P/8/1R6 b - - 0 44","m":"a8a5 b1b8 c6c8 b8c8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"smkts","f":"3r1r2/6k1/2p2pp1/p3p2P/Np2P2P/4b3/PPP4R/1K1qQB2 w - - 1 31","m":"e1d1 d8d1","r":417,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"smqC6","f":"5r1k/6p1/p4rRp/1ppBp3/4P3/8/PPP5/1K4R1 w - - 4 29","m":"g6g7 f6f1 g1f1 f8f1","r":426,"t":"backRankMate endgame mate mateIn2 short"},{"i":"snIBD","f":"8/rr6/P1R5/1P1k4/1b6/8/5PPP/6K1 w - - 0 42","m":"a6b7 a7a1 c6c1 a1c1","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"snstT","f":"4r1k1/ppp2ppp/2n1r3/2b5/3p4/P2P1q2/1P3PPP/R1BQR1K1 w - - 0 17","m":"d1f3 e6e1","r":472,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"sobyR","f":"4r2k/2p1Q1pp/pp3p2/8/2P3P1/1P5P/P4P2/1K1R4 b - - 0 29","m":"e8e7 d1d8 e7e8 d8e8","r":562,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sopy8","f":"1rQ3k1/3r1ppp/4p1b1/8/P7/1q2BBP1/5PKP/2R5 b - - 1 29","m":"b8c8 c1c8 d7d8 c8d8","r":572,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"sp3wf","f":"4r3/p1k1q2p/2p3p1/2n5/4Np2/2P2P2/PPQ2PPP/3R2K1 w - - 0 25","m":"e4c5 e7e1 d1e1 e8e1","r":505,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"sp9eE","f":"8/p3r2p/1pn2p2/8/1P1k4/5Q2/P5PP/2R4K w - - 2 40","m":"c1c6 e7e1 f3f1 e1f1","r":473,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"sq7GC","f":"6k1/6p1/p7/3p2p1/8/2P5/Pr3PPP/3R2K1 w - - 0 25","m":"d1d5 b2b1 d5d1 b1d1","r":419,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"sqRCH","f":"8/p4pk1/3N1n1p/4R1p1/8/8/PPr2PPP/6K1 w - - 0 28","m":"e5e7 c2c1 e7e1 c1e1","r":453,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sqXRV","f":"3Q3k/6pp/p1n2r2/8/8/4B3/P1P1qPPP/3R2K1 b - - 4 24","m":"c6d8 d1d8 f6f8 d8f8","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sqdPj","f":"5rk1/3r1pb1/p1R1p1p1/6Np/1n6/7R/PP1B1PPP/6K1 w - - 1 27","m":"d2b4 d7d1 b4e1 d1e1","r":561,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"sr1yF","f":"2r3k1/p3Rppp/2p3q1/3p4/3P1r2/1PPQ1P1P/P5P1/4R1K1 b - - 2 28","m":"g6d3 e7e8 c8e8 e1e8","r":468,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"sr8sp","f":"r5k1/5ppp/R1pRp3/8/PP6/2b4P/5PP1/6K1 b - - 0 28","m":"a8a6 d6d8","r":463,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"srWvN","f":"6k1/5ppp/1q6/2np4/8/5NP1/5PKP/2R5 b - - 3 30","m":"c5e4 c1c8 b6d8 c8d8","r":435,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ssbYO","f":"r1Q3k1/5ppp/4p3/1p2P1q1/1P1Bp3/3bP2P/P5BK/2R5 b - - 4 35","m":"a8c8 c1c8 g5d8 c8d8","r":426,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ssomx","f":"k2Q2nr/pp2bppp/4p3/1q6/4RB2/8/PP3PPP/2R3K1 b - - 0 20","m":"e7d8 c1c8","r":592,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ssqmg","f":"r2r3k/2N3bp/1R4p1/p4p2/1n2p3/4B3/R4PPP/6K1 w - - 4 30","m":"b6b4 d8d1","r":576,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"stBur","f":"r4rk1/2p1b3/p6Q/2p1Nq2/7p/1PpP3R/P1P3PP/R6K w - - 4 28","m":"e5g6 f5f1 a1f1 f8f1","r":591,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"stPDi","f":"3r1r1k/7P/p6R/3qpp2/2p5/8/PPP2Q2/2K2R2 w - - 0 34","m":"c1b1 d5d1 f1d1 d8d1","r":558,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"stQyt","f":"r1b1r1k1/1p2Qppp/p7/8/8/5PB1/PP3P1P/R2R2K1 b - - 0 20","m":"e8e7 d1d8 e7e8 d8e8","r":435,"t":"backRankMate endgame mate mateIn2 short"},{"i":"suALS","f":"3r2k1/1p3pp1/p4np1/4R3/8/1B5Q/PP3PPP/3q2K1 w - - 1 26","m":"b3d1 d8d1 e5e1 d1e1","r":463,"t":"backRankMate endgame mate mateIn2 short"},{"i":"suteD","f":"3r1rk1/pQ2n1bp/1pp2pp1/2n1p1B1/4P3/2P2N2/PP3PPP/RN4K1 w - - 0 16","m":"b7e7 d8d1 f3e1 d1e1","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"sv4fG","f":"8/7k/R1p1r1pp/1N6/7P/P2P2bn/1PPN4/2K5 w - - 0 38","m":"b5d4 e6e1","r":450,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"svNmO","f":"7k/p5pp/5p2/1p6/4P2B/P1r5/3r1PPP/3R2K1 w - - 0 29","m":"d1d2 c3c1 d2d1 c1d1","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sw4SR","f":"4rk2/3n3p/p1p5/2p1q3/3p2Q1/PP6/2P2PPP/R5K1 w - - 2 24","m":"g4d7 e5e1 a1e1 e8e1","r":595,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"sw63i","f":"2rR2k1/4Qppp/8/8/p7/1q3B2/5PPP/6K1 b - - 1 32","m":"c8d8 e7d8","r":559,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sw7Nn","f":"1k2Q1r1/ppp5/2np3b/5P2/3P4/2P2p1p/PP4rP/R2KR3 b - - 3 32","m":"g8e8 e1e8 c6d8 e8d8","r":415,"t":"backRankMate endgame mate mateIn2 short"},{"i":"swB7X","f":"6k1/5ppp/4p3/PR1pP3/3P3P/5P2/r2b4/3K4 b - - 0 41","m":"d2a5 b5b8 a5d8 b8d8","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"swMIh","f":"rn4k1/ppp3pp/1b2p3/4P1B1/6Q1/2P5/PP3rPP/RN4K1 w - - 0 15","m":"g1h1 f2f1","r":534,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sweUi","f":"2r3k1/p4p2/1p4pp/1N1p4/P7/8/1Q2RPPP/2q3K1 w - - 1 36","m":"b2c1 c8c1 e2e1 c1e1","r":413,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sx0ub","f":"4r1k1/p1p3pp/2pp4/8/5r2/1P1P4/PR4PP/5R1K w - - 0 21","m":"f1f4 e8e1 f4f1 e1f1","r":411,"t":"backRankMate endgame master mate mateIn2 rookEndgame short"},{"i":"sx9W1","f":"8/6pk/1n1R3p/2r2p2/1p3B2/1B2P3/PP3PPP/6K1 w - - 6 31","m":"d6b6 c5c1 b3d1 c1d1","r":570,"t":"backRankMate endgame mate mateIn2 short"},{"i":"sxbbO","f":"r2R2k1/2Q2ppp/p3p3/2p5/P1P5/1P6/5P1P/2qb1K2 b - - 1 29","m":"a8d8 c7d8","r":457,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"sxqgg","f":"4r1k1/p1p2ppp/2p3q1/1p6/5P2/2P1Q2P/PP1R2P1/R5K1 b - - 0 23","m":"e8e3 d2d8 e3e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"sy2p4","f":"r1b2k1r/1p2npbp/1B2p1p1/pB6/1Q6/2N5/PP3PPP/R2R2K1 b - - 0 16","m":"a5b4 d1d8","r":484,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"sy306","f":"rn1q1Q1k/pp4pp/3P4/2p5/3p4/8/PPPPr1PP/R1B2RK1 b - - 2 15","m":"d8f8 f1f8","r":463,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"syDpt","f":"5rk1/p4q1p/1p4p1/PPp5/4P3/2Q5/6PP/4R1K1 w - - 1 32","m":"g1h1 f7f1 e1f1 f8f1","r":507,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"syqFn","f":"r5k1/1pp2p1p/6p1/2P1b3/4P3/5N2/4RPPP/6K1 w - - 0 30","m":"f3e5 a8a1 e2e1 a1e1","r":472,"t":"backRankMate endgame mate mateIn2 short"},{"i":"szL3Y","f":"3r2k1/5ppp/1r6/pN1p2q1/P1pRQ3/2P4P/1P3PP1/3R2K1 b - - 0 26","m":"d5e4 d4d8 g5d8 d1d8","r":409,"t":"backRankMate endgame mate mateIn2 short"},{"i":"szVFR","f":"2r3k1/p5pp/p2p1p2/3PpP2/4P3/1P2Q3/P3q1PP/7K w - - 0 24","m":"e3e2 c8c1 e2d1 c1d1","r":448,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"sznqB","f":"4r1k1/p3rppp/2p2n2/1p3p2/8/2N2N2/PP1R1PPP/3R2K1 w - - 0 24","m":"f3d4 e7e1 d1e1 e8e1","r":405,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"t0b11","f":"4r1k1/Q1Rb2pp/3P1p2/8/P7/8/1r3PPP/R3q2K w - - 4 28","m":"a1e1 e8e1","r":565,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"t0neT","f":"2q4k/6p1/1R2Np1p/3P4/2r5/6B1/5PPP/3R2K1 w - - 1 35","m":"d1b1 c4c1 b1c1 c8c1","r":592,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t0wRf","f":"r1R4k/p2Q2pp/1r4pq/3pP2n/3P1P2/1P4P1/P3N1KP/5nB1 b - - 1 29","m":"a8c8 d7c8","r":549,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"t115p","f":"5rk1/pp3pp1/3R1b1p/3R4/8/q1P1PN2/2Q2PPP/6K1 w - - 0 23","m":"f3d4 a3a1 c2b1 a1b1","r":577,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"t11z6","f":"3R3k/p3rppp/8/1p6/8/P3P3/5PPP/6K1 b - - 1 35","m":"e7e8 d8e8","r":440,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove rookEndgame"},{"i":"t1H25","f":"5k2/4R2p/r4pp1/1p1N4/8/8/1PP2PPP/6K1 w - - 4 31","m":"e7h7 a6a1","r":406,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"t1TIw","f":"6k1/p3rp2/6p1/3p4/5r2/8/PPP3PP/5R1K w - - 0 30","m":"f1f4 e7e1 f4f1 e1f1","r":574,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"t1WXo","f":"8/p4kpp/2pp1n2/8/3PP3/2Q1PR2/P5PP/1r5K w - - 1 23","m":"c3c1 b1c1 f3f1 c1f1","r":400,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"t1XlI","f":"5rk1/1b1p1rBp/p1n1p3/1p6/4P1Q1/3B2R1/P5PP/R4q1K w - - 2 26","m":"d3f1 f7f1 a1f1 f8f1","r":525,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"t1Xxb","f":"5rk1/pR3ppp/8/2P5/1PP2r2/P7/1B4PP/3R3K w - - 0 27","m":"d1d4 f4f1","r":481,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"t1bq0","f":"5rk1/3q1pp1/p3p2p/8/r1p2P2/6Q1/2P2PPP/R2R2K1 w - - 0 26","m":"d1d7 a4a1 d7d1 a1d1","r":493,"t":"backRankMate endgame hangingPiece mate mateIn2 queenRookEndgame short"},{"i":"t1lPq","f":"6k1/p4pp1/4p2p/q7/1b1PN3/3QP3/1Pr2PPP/6K1 w - - 0 32","m":"d3c2 a5a1 c2b1 a1b1","r":538,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t2a48","f":"5rk1/p4p2/3p3p/3P1p2/2P1p3/6N1/P2Q1PPP/1r5K w - - 0 28","m":"g3f1 b1f1","r":531,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"t2pTU","f":"k2Q3r/pp2np2/5q1p/4p1p1/2P2bP1/5N1P/PP2BP2/3R1RK1 b - - 2 22","m":"h8d8 d1d8 e7c8 d8c8","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"t378Q","f":"3R3k/1b3rpp/4p3/pqp5/8/1BP5/2P2PPP/4R1K1 b - - 0 27","m":"f7f8 d8f8","r":489,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"t3Bhy","f":"1r4k1/p1p2ppp/2pq2r1/3p4/1P1P4/P1P4P/4QPP1/2R1R2K b - - 2 24","m":"d6f6 e2e8 b8e8 e1e8","r":573,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"t3cpo","f":"1k6/1pp3p1/p7/4p1Nr/8/8/PPP5/1K2R3 w - - 2 34","m":"e1e5 h5h1 e5e1 h1e1","r":409,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t3mKO","f":"6k1/5ppp/8/1K6/1p2rb1P/3r4/PP3P2/2R5 b - - 4 39","m":"d3d4 c1c8 d4d8 c8d8 e4e8 d8e8","r":401,"t":"backRankMate endgame long mate mateIn3"},{"i":"t3ufC","f":"6k1/5ppp/p1r5/1PP1p3/3r4/4KP1P/6P1/R2b4 b - - 0 39","m":"a6b5 a1a8 c6c8 a8c8 d4d8 c8d8","r":543,"t":"backRankMate endgame long mate mateIn3"},{"i":"t477v","f":"3r2k1/3Q1ppp/1p2p3/8/1P6/P6P/5PP1/2R3K1 b - - 0 25","m":"d8d7 c1c8 d7d8 c8d8","r":460,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"t4Hh3","f":"3r2k1/Q5pp/4p3/2P2p2/8/8/P2r1PPP/2q1R1K1 w - - 0 25","m":"e1c1 d2d1 c1d1 d8d1","r":558,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"t4J44","f":"3r1rk1/p4p2/1p3Q1p/2p1B1p1/8/P3PN2/5PPP/R2q2K1 w - - 10 27","m":"a1d1 d8d1 f3e1 d1e1","r":418,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t4JYN","f":"3r3k/6pp/p7/3Qn3/P7/6P1/5P1P/1R4K1 b - - 0 29","m":"d8d5 b1b8 d5d8 b8d8","r":426,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t59k8","f":"1k1Q3r/ppp5/8/8/6rn/2P1PNPq/PP3P1P/3R1RK1 b - - 6 28","m":"h8d8 d1d8","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"t5Y8J","f":"4Q1kr/2qb1ppp/2p5/8/8/8/Pr3PPP/3RR1K1 b - - 5 26","m":"d7e8 e1e8","r":468,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"t5dM3","f":"5r2/6k1/p3pr1p/1p4p1/8/1P4P1/P2qQ1PP/R4R1K w - - 1 26","m":"e2d2 f6f1 a1f1 f8f1","r":448,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"t5f6v","f":"k1Q1q1nr/pp4b1/4p2p/4P1p1/1P1r1p2/P7/3BBPPP/2R2RK1 b - - 2 21","m":"e8c8 c1c8","r":483,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"t5mlw","f":"6k1/3p1ppp/2n1p3/q7/P2N4/3rP3/5PPP/RR4K1 b - - 4 21","m":"c6d4 b1b8 a5d8 b8d8","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t6FXL","f":"6k1/2R2ppp/p7/1p6/5pP1/KP6/P3r2P/8 b - - 4 33","m":"f4f3 c7c8 e2e8 c8e8","r":543,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"t6Wfg","f":"k1Rr3r/pp2q2p/4pp2/1B4p1/3P4/4nP2/PPQ4P/2R3K1 b - - 1 26","m":"d8c8 c2c8 h8c8 c1c8","r":420,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"t6sx3","f":"r1R3k1/p4ppp/1p1pp3/8/3P4/P3P3/qP3PPP/2Q1N1K1 b - - 8 27","m":"a8c8 c1c8","r":456,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"t7HyV","f":"4Q1k1/2qr1ppb/2p2n1p/pp6/5N2/2N3PP/PP2R1BK/8 b - - 3 26","m":"f6e8 e2e8","r":527,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"t888G","f":"1k4Qr/ppp1R3/5p2/8/3P1p1q/2P5/PP1N1P2/4RK2 b - - 0 27","m":"h8g8 e7e8 g8e8 e1e8","r":507,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t8DmD","f":"7r/6R1/p1kr3p/2p2pp1/2P5/8/PP3PPP/4R1K1 w - - 0 31","m":"e1e7 d6d1 e7e1 d1e1","r":401,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"t8Xyh","f":"8/pp3p1k/2r1rPp1/7p/8/1PP2R2/1P4PP/3R3K w - - 3 31","m":"d1d7 e6e1 f3f1 e1f1","r":531,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"t8bNv","f":"r4Q1k/ppP3pp/8/2p5/N2q4/4r2P/PPP3P1/R4RK1 b - - 1 18","m":"a8f8 f1f8","r":462,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"t8cm2","f":"3r2k1/1p3ppp/p2Q4/8/P2b4/1P4P1/6BP/2R4K b - - 0 31","m":"d8d6 c1c8 d6d8 c8d8","r":406,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t8dId","f":"2r3k1/5ppp/p1r5/1p2p3/8/2PR1P2/b1K3PP/3R4 b - - 1 24","m":"b5b4 d3d8 c8d8 d1d8","r":544,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t8v4f","f":"2r3k1/5ppp/p4p2/8/2B2qb1/PP1R4/1KN1rP2/5R2 b - - 9 30","m":"c8c4 d3d8 e2e8 d8e8","r":456,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"t8wGS","f":"2b3k1/7p/pp2p1pB/3nP3/1P4Q1/P7/B4rPP/2q4K w - - 0 30","m":"h6c1 f2f1","r":496,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"t8yEz","f":"3r2k1/1p2Rppp/1p1P4/8/3r1P2/1b1PR2P/1P4P1/6K1 b - - 5 24","m":"d4d6 e7e8 d8e8 e3e8","r":533,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t8yyB","f":"5r1k/2R3pp/4p2b/p3r3/5R2/P3p1KP/6P1/8 b - - 1 31","m":"f8f4 c7c8 f4f8 c8f8","r":544,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t91sL","f":"3r4/1pR5/4R3/p5k1/8/PP6/5PPP/6K1 w - - 1 35","m":"c7f7 d8d1 e6e1 d1e1","r":400,"t":"backRankMate endgame master mate mateIn2 rookEndgame short"},{"i":"t95ie","f":"2br1rk1/2B1pp1p/p1n1P1pb/1pN2n2/8/5N1P/PPP1RPP1/2K2B1R w - - 1 18","m":"c1b1 d8d1","r":522,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"t99hx","f":"1r1r2k1/5pb1/R5pp/2p1p3/8/P1P2B2/1P2RPPP/6K1 w - - 3 27","m":"a6c6 d8d1 e2e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t9BEZ","f":"rn2k1nr/pb2ppbp/1p4p1/1Bp5/4P3/N1P1BN2/PP3PPP/2KR3R b - - 5 10","m":"e8f8 d1d8","r":569,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"t9DGa","f":"r3Q1k1/1pp2ppp/p4n2/3P2qb/8/4R3/PP3PPP/4R1K1 b - - 5 24","m":"f6e8 e3e8 a8e8 e1e8","r":409,"t":"backRankMate endgame mate mateIn2 short"},{"i":"t9L2y","f":"k2r1r2/1RQ3pp/2p5/1p6/8/3P4/P5PP/1R3q1K w - - 2 31","m":"b1f1 f8f1","r":510,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"t9MPw","f":"2r3k1/p4ppp/8/8/6P1/P1QP2RP/5r2/KR6 b - - 0 30","m":"c8c3 b1b8 c3c8 b8c8","r":526,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tA0NF","f":"3r4/p4kpp/1p6/8/8/2P1R3/PP3PPP/6K1 w - - 2 28","m":"e3e2 d8d1 e2e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tA2FW","f":"4r1k1/4rppp/p4n2/2b3B1/2P4Q/5B2/P5PP/1R2q2K w - - 0 32","m":"b1e1 e7e1 h4e1 e8e1","r":434,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tAzG8","f":"1r4k1/5ppp/4pn2/3p4/p2N4/P3P3/1Q3PPP/2R3K1 b - - 0 23","m":"b8b2 c1c8 f6e8 c8e8","r":452,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tBIH3","f":"4rrk1/p4p1p/1p2q1p1/8/3R4/2P5/PPQ2PPP/3R2K1 w - - 3 21","m":"a2a3 e6e1 d1e1 e8e1","r":494,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"tBPxD","f":"2r3k1/5ppp/8/pR6/2Qp4/7P/5PP1/6K1 b - - 0 35","m":"c8c4 b5b8 c4c8 b8c8","r":406,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tBTpf","f":"3r3k/pp3pp1/4pn1p/2q5/8/2P1QNR1/PP3PPP/6K1 w - - 0 27","m":"e3c5 d8d1 f3e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tBtaH","f":"3r1rk1/5ppp/p7/1p1pQ3/q1p5/P1P4P/1P3PP1/3RR1K1 b - - 3 26","m":"f8e8 e5e8 d8e8 e1e8","r":538,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tC6bM","f":"8/3r1k1p/1pp1pNp1/8/8/8/1rP2PPP/1R4K1 w - - 2 24","m":"b1b2 d7d1","r":462,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tC6q8","f":"3r2k1/rp2Rpp1/1bp4p/p7/P7/2P3B1/5PPP/1R4K1 w - - 2 27","m":"b1b6 d8d1 e7e1 d1e1","r":489,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tCKwa","f":"5rk1/pp2Qpp1/7p/q7/8/1P6/P5PP/4R2K w - - 1 35","m":"e7b7 a5e1","r":435,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"tCc73","f":"6k1/8/6p1/P2q3p/8/4P1B1/2r2PPP/3R2K1 w - - 0 36","m":"d1d5 c2c1 d5d1 c1d1","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tChIz","f":"3r2k1/5ppp/3R4/1p6/1p1P4/8/P4PPP/2R3K1 b - - 0 25","m":"d8d6 c1c8 d6d8 c8d8","r":438,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tCqh8","f":"5rk1/pppb2b1/2n5/7Q/3P3B/8/PP4PP/4Rq1K w - - 1 26","m":"e1f1 f8f1","r":516,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"tCsqK","f":"3rr1k1/1b3p1p/4p1pQ/p7/1p2B3/1P3N1R/P2B1PPP/b1q3K1 w - - 1 27","m":"d2c1 d8d1 f3e1 d1e1","r":436,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tCyYK","f":"5r1k/6pp/5r2/8/1bP5/1Q6/6PP/q1R4K w - - 0 37","m":"c1a1 f6f1 a1f1 f8f1","r":563,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tD7Rd","f":"1rk4N/p3R2p/p1p2p2/8/8/P1PR4/5PPP/6K1 w - - 1 23","m":"d3d7 b8b1 d7d1 b1d1 e7e1 d1e1","r":507,"t":"backRankMate endgame long mate mateIn3"},{"i":"tDHFy","f":"5rk1/6p1/2p1p2p/1b5Q/4P3/8/6PP/1B1R1q1K w - - 2 40","m":"d1f1 f8f1","r":492,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tEkiL","f":"4rQ1k/6pp/p7/3pq3/2r5/P1P1P2P/1B4P1/R4RK1 b - - 2 26","m":"e8f8 f1f8","r":591,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tFXuG","f":"2r1k1nr/5ppp/p3p3/4P3/1p1q4/1P6/P4PPP/RN1R2K1 w k - 0 19","m":"d1d4 c8c1 d4d1 c1d1","r":445,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tG8CI","f":"r1b1r1k1/p4ppp/1p1R4/2p5/4pP2/4B3/PPP3PP/2K4R b - - 1 17","m":"e8e7 d6d8 e7e8 d8e8","r":545,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tGCl9","f":"3r4/p5R1/7p/5k2/8/1P6/r4PPP/3R2K1 w - - 1 25","m":"d1d8 a2a1 d8d1 a1d1","r":455,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tGQTA","f":"rn1r1Q1k/ppp3pp/4p3/6P1/4q3/B1P5/P1P1N2P/R3KR2 b Q - 2 16","m":"d8f8 f1f8","r":504,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"tGcqw","f":"6k1/3b1ppp/8/1BRp4/1P3n2/5P2/1PP2KPP/1r6 b - - 0 29","m":"d7b5 c5c8 b5e8 c8e8","r":563,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tGll5","f":"3r1rk1/5ppp/p1q1pbb1/8/B7/2P5/1P2RPPP/RN4K1 w - - 0 19","m":"a4c6 d8d1 e2e1 d1e1","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tHQHN","f":"2b3k1/2q2ppp/p1Q5/4P3/8/7P/5PP1/3R2K1 b - - 3 29","m":"c7c6 d1d8 c6e8 d8e8","r":571,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tHaAz","f":"1k4r1/ppp2p2/3b3p/8/6Q1/3P4/PPP2PPP/4R1K1 b - - 5 21","m":"g8g4 e1e8","r":560,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tHbNn","f":"5n1k/R5p1/1p6/5p1p/3Pp3/1r6/5qPP/5R1K w - - 0 34","m":"f1f2 b3b1 f2f1 b1f1","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tHe49","f":"6rk/2p2p1p/p4p2/6q1/8/3QR3/PPP3PP/7K w - - 5 24","m":"e3g3 g5c1 d3d1 c1d1","r":506,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tJNnw","f":"r4rk1/p4qp1/2p3p1/1p1p2B1/3b4/P1N5/1PQ3PP/R4RK1 w - - 0 23","m":"g1h1 f7f1 a1f1 f8f1","r":597,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tJOtg","f":"2r3k1/p1q2pp1/1p3n1p/1P6/8/PQ6/4NPPP/2rR2K1 w - - 0 25","m":"d1c1 c7c1 e2c1 c8c1 b3d1 c1d1","r":482,"t":"backRankMate endgame long mate mateIn3"},{"i":"tJlEV","f":"5rk1/5ppp/1Q2p3/P2pq3/8/7P/5PP1/1R4K1 b - - 1 31","m":"f8b8 b6b8 e5b8 b1b8","r":558,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tKMK3","f":"4r1k1/p1P2ppp/1p6/5R2/3Q4/2P5/P3rPPP/3R2K1 w - - 1 22","m":"d4d7 e2e1 d1e1 e8e1","r":512,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"tLBL7","f":"2r2Q1k/pp4pp/8/3P2q1/2B3b1/4r3/PPP3PP/1K3R1R b - - 2 22","m":"c8f8 f1f8","r":416,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"tLIwU","f":"1k1Qr3/ppp1r1p1/8/4p2p/5P1P/1PP3P1/q4RK1/3R4 b - - 1 29","m":"e8d8 d1d8","r":412,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"tMEYu","f":"1r4k1/2p2ppp/8/1p1qQ3/p7/2PP3P/PP3PP1/4R1K1 b - - 0 24","m":"d5d3 e5e8 b8e8 e1e8","r":520,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"tMjiO","f":"8/3k1p1p/6p1/r2p4/8/2N5/5PPP/4R1K1 w - - 0 35","m":"e1e5 a5a1 c3b1 a1b1 e5e1 b1e1","r":553,"t":"backRankMate endgame long mate mateIn3"},{"i":"tNFpo","f":"1k1r4/5pp1/2B1pnp1/pP6/Rb6/8/1P3PPP/2Rr2K1 w - - 1 29","m":"c1d1 d8d1","r":422,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tNVp6","f":"r3R1k1/p4ppp/2p2q2/8/3p4/Q7/PPP2PPP/4R1K1 b - - 0 21","m":"a8e8 e1e8","r":595,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tNWey","f":"2r1B2k/p5rp/4q1p1/3P4/8/1P6/P4PPP/4R1K1 w - - 0 36","m":"e1e6 c8c1 e6e1 c1e1","r":575,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tNZmp","f":"r1b2rk1/pp4pp/2p1p3/3pP3/4p1Q1/4P3/PPP3PP/R1B1Rq1K w - - 0 16","m":"e1f1 f8f1","r":517,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"tNxG1","f":"1k2Rr2/ppp5/8/1P1p1nr1/P6p/2P4B/3N1PP1/4R1K1 b - - 2 29","m":"f8e8 e1e8","r":452,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tNxU0","f":"2r1R2k/5Qpp/1p4p1/p5B1/3q4/7P/PP3PP1/6K1 b - - 1 26","m":"c8e8 f7e8","r":591,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tOgNH","f":"3rk3/pp3p1p/3q1p2/8/1Q6/P7/1P3PPP/R5K1 w - - 0 24","m":"b4b7 d6d1 a1d1 d8d1","r":464,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"tP0Hb","f":"1k1r4/ppp4p/5p2/5r2/1P2R3/5Pb1/P3K3/3R4 b - - 2 45","m":"d8d1 e4e8 d1d8 e8d8","r":586,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tPFAP","f":"6k1/5ppp/4p3/3pP3/3P4/1R3P1P/1pr3P1/1n4K1 b - - 1 35","m":"b1d2 b3b8 c2c8 b8c8","r":418,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tPjrf","f":"5rk1/1p2p2p/p5p1/8/2P1R1n1/1P6/P3BrPP/4R2K w - - 1 30","m":"e2g4 f2f1 e1f1 f8f1","r":462,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tPmo8","f":"1r2n3/p3P2k/2p1R2p/3p4/3P4/P1P5/2P2PPP/6K1 w - - 0 26","m":"e6c6 b8b1","r":432,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tQo2h","f":"5r1k/2pR2pp/8/8/5Q2/4p2P/P5PK/8 b - - 0 36","m":"f8f4 d7d8 f4f8 d8f8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tQraI","f":"r1b2rk1/1p2p1bp/p5p1/2pN4/P7/4P3/1PP3PP/R1BQ1q1K w - - 4 18","m":"d1f1 f8f1","r":593,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"tQu4M","f":"5r1k/p1pB2p1/1p1b2Qp/4r3/4P3/2N5/PPP3PP/1K3q1R w - - 2 24","m":"h1f1 f8f1 c3d1 f1d1","r":539,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tR08e","f":"2kr3r/1pp2ppp/p3p3/2b1P3/Q4B2/8/PPP3PP/3q1R1K w - - 0 17","m":"f1d1 d8d1","r":440,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tR0uD","f":"2krr3/ppp3pp/2np4/3N1p2/8/6QB/PPP3PP/R1B1q2K w - - 1 18","m":"g3e1 e8e1","r":496,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"tRQM7","f":"4r1k1/pp3p2/5p1p/2pp1Pb1/6Q1/3B4/PPP3P1/1K5R w - - 2 31","m":"h1h6 e8e1 g4d1 e1d1","r":540,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tRXEg","f":"k1r5/p3R1pp/3B4/3P1b2/8/2N5/PP3PPP/2R3K1 w - - 3 24","m":"c3b5 c8c1 e7e1 c1e1","r":523,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"tRfcn","f":"6k1/4rppp/2R5/2pr4/8/2p2N1P/5PPK/8 b - - 2 29","m":"c3c2 c6c8 d5d8 c8d8 e7e8 d8e8","r":442,"t":"backRankMate endgame long mate mateIn3"},{"i":"tRk5T","f":"6k1/5ppp/4p3/3pPP2/3P2P1/5N2/4Q1q1/1RK5 b - - 0 37","m":"g2e2 b1b8","r":596,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tRma6","f":"6k1/1p4p1/p1p2p1p/8/3q2R1/8/PP2rPPP/1B4K1 w - - 0 31","m":"g4d4 e2e1","r":444,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tTAXy","f":"rn2r1k1/ppp2ppp/8/5b2/2P5/1NP5/P3QPPP/3R1RK1 b - - 0 17","m":"e8e2 d1d8 e2e8 d8e8","r":556,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tTS5i","f":"r1b1r1k1/pp2Bp1p/2np1bp1/8/5P2/8/PPPR2PP/1K3B1R w - - 0 15","m":"e7f6 e8e1 d2d1 e1d1","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tUBoS","f":"r4rk1/1p4pp/p7/8/7R/PPQ5/2b3PP/R4q1K w - - 2 26","m":"a1f1 f8f1","r":567,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tUm5S","f":"2r2Q1k/1p4pp/p5n1/3p4/2qP2P1/P1P1r2P/1P3R2/5RK1 b - - 2 29","m":"g6f8 f2f8 c8f8 f1f8","r":434,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tVHF6","f":"4rr1k/1p4pp/2p1pb2/p3p1Q1/P3P3/1P1P1R2/2P3PP/5R1K b - - 0 25","m":"f6g5 f3f8 e8f8 f1f8","r":447,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tVMmu","f":"1Q1r3k/6pp/5p2/3p4/P3n2q/1P1bPB2/1BR3P1/2R3K1 b - - 0 31","m":"d8b8 c2c8 b8c8 c1c8","r":508,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tVa65","f":"1R3bk1/2r2p1p/p5p1/1p6/1P6/P3P3/5PPP/3R2K1 w - - 0 28","m":"d1d8 c7c1 d8d1 c1d1","r":420,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tVgyi","f":"3r3k/pp4p1/2n4p/8/8/5N2/PPq2PPP/2R3K1 w - - 0 25","m":"c1c2 d8d1 f3e1 d1e1","r":584,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tW6VB","f":"4r1k1/p4ppp/3p4/1P1P4/5P2/3Q4/P5PP/2R1q2K w - - 1 23","m":"c1e1 e8e1 d3f1 e1f1","r":552,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"tWFIO","f":"2R2rk1/p4ppp/1p1p1q2/3b4/8/8/P2NQPPP/4R1K1 b - - 0 21","m":"f8c8 e2e8 c8e8 e1e8","r":424,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"tWJ29","f":"2r3k1/pp4p1/3p3p/3P4/PP1pP3/3p4/3R1PPP/6K1 w - - 2 26","m":"d2d3 c8c1 d3d1 c1d1","r":577,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tWJWO","f":"1r6/p4kpp/5p2/2pP4/2P5/3R4/P4PPP/6K1 w - - 1 35","m":"d5d6 b8b1 d3d1 b1d1","r":423,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tWVT5","f":"3r4/5pk1/p5pp/1p3n2/8/1P1B1R2/P4PPP/6K1 w - - 6 32","m":"d3f5 d8d1","r":492,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"tWzPW","f":"8/5r1k/1p1rnp1b/p1pPpR2/P3P2R/8/1B4PP/7K w - - 0 39","m":"d5e6 d6d1 f5f1 d1f1","r":557,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tXC7I","f":"5rk1/2p2rb1/2p5/2P1p2p/1QPp2P1/P7/1P4PP/2BRRq1K w - - 3 29","m":"e1f1 f7f1 d1f1 f8f1","r":560,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tYZ53","f":"5r1k/br4pp/8/2p2N2/2P1p3/Pp2P1P1/1R3P1P/3R2K1 b - - 0 28","m":"f8f5 d1d8 f5f8 d8f8","r":526,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tYjVT","f":"2b1r1k1/5rpp/p1p1P3/3pR1QN/2pP4/2P5/P5PP/4Rq1K w - - 3 27","m":"e1f1 f7f1","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"tYqBc","f":"6k1/5ppp/2R5/8/5KPP/P2r1P2/2pr4/2R5 b - - 5 35","m":"d3a3 c6c8 d2d8 c8d8","r":549,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tZ5tC","f":"2r5/5pkp/6p1/3P4/R1N5/8/1n3PPP/6K1 w - - 1 32","m":"c4b2 c8c1 b2d1 c1d1","r":462,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tZJ0m","f":"8/1R6/p1pp2k1/5r2/2Pr2p1/1P6/P5PP/5R1K w - - 1 32","m":"f1f5 d4d1 f5f1 d1f1","r":578,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tZOBS","f":"2r3k1/2rbqp2/4p1p1/p2pP2p/Pn1P4/3NQ2R/1P3PPP/RB4K1 w - - 5 25","m":"d3f4 c7c1 e3c1 c8c1","r":448,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tZP1Z","f":"4rrk1/3qQppp/p1p2n2/2pp4/8/2NP4/PPP2PPP/R1B1R1K1 w - - 1 14","m":"e7d7 e8e1","r":546,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"tZp2P","f":"rn2rQ1k/pp4pp/2p5/3p2B1/3P4/1BP3Pb/PP2q1P1/R4RK1 b - - 1 17","m":"e8f8 f1f8","r":530,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"ta3Fg","f":"r1b4k/ppp3pp/8/3R1p2/4r3/7P/PPP2PP1/2K3NR b - - 0 17","m":"c7c6 d5d8 e4e8 d8e8","r":467,"t":"backRankMate endgame mate mateIn2 short"},{"i":"taFcB","f":"2r3k1/5ppp/p3p3/3p4/P5N1/5q2/7P/1R4K1 b - - 1 31","m":"c8c2 b1b8 c2c8 b8c8","r":460,"t":"backRankMate endgame mate mateIn2 short"},{"i":"taTnF","f":"6k1/6pp/8/8/p1B2R2/7P/1r3P2/3b2K1 b - - 1 37","m":"g8h8 f4f8","r":582,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tb2Sp","f":"4r1k1/1p3ppp/p4p2/3R4/8/2P1Q2P/PP4P1/6K1 b - - 0 27","m":"e8e3 d5d8 e3e8 d8e8","r":495,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tc74C","f":"1k1r4/ppp2Rp1/2p5/4p3/P3P2p/3P3P/2P3P1/7K b - - 1 23","m":"d8d4 f7f8 d4d8 f8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tdH48","f":"3r2k1/5ppp/4p3/pRp5/8/2P3P1/P4P1P/6K1 b - - 2 25","m":"d8d2 b5b8 d2d8 b8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tdUND","f":"3r2k1/5ppp/pp3n2/1p6/8/P6Q/1PB1RPPP/3q2K1 w - - 1 26","m":"c2d1 d8d1 e2e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tdhua","f":"3r2k1/1b3p1p/4p1pR/1p2P1q1/p3p1Q1/P1P5/BP1r1PPP/R5K1 w - - 4 24","m":"g4g5 d2d1 a1d1 d8d1","r":570,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tdoU3","f":"1k1r1b2/p1p3p1/1p2Q3/4P3/8/P4R2/1PP3PP/R2q3K w - - 1 25","m":"a1d1 d8d1 f3f1 d1f1","r":433,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tdu5s","f":"2rb2k1/5pp1/7p/4pN1n/1p2P1Q1/1P1bB3/PP4PP/K1q5 w - - 0 33","m":"e3c1 c8c1","r":585,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"tdxTv","f":"2r5/8/p6k/1p1b2p1/5p2/P6P/5PPB/3R2K1 w - - 0 35","m":"d1d5 c8c1 d5d1 c1d1","r":404,"t":"backRankMate endgame mate mateIn2 short"},{"i":"teVgu","f":"r5k1/p1R2ppp/1p2p3/3pP3/3Pr1P1/3K3P/P7/2R5 b - - 5 29","m":"e4f4 c7c8 a8c8 c1c8","r":577,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"teyYk","f":"5rk1/ppp2qp1/3b3p/3pP3/8/P1N3Q1/1PP3PP/3RRr1K w - - 1 22","m":"e1f1 f7f1 d1f1 f8f1","r":492,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tf6F3","f":"1Q5k/3n2pp/3p4/1Pp1p3/P7/B1P3bq/R2P3N/5R1K b - - 0 27","m":"d7b8 f1f8","r":536,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"tf8P2","f":"5Q1k/6pp/p3B1n1/3p4/2pq4/6B1/2P3PP/5R1K b - - 0 28","m":"g6f8 f1f8","r":541,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tfK8a","f":"3r3k/1p3p2/p4Prp/2P1RQ2/6pR/P3p3/1B4PP/7K w - - 2 44","m":"e5e3 d8d1 e3e1 d1e1 f5f1 e1f1","r":425,"t":"backRankMate endgame long mate mateIn3"},{"i":"tfhhJ","f":"2r3k1/2RqBpp1/3P3p/1p6/1p6/5Q2/5PPP/6K1 w - - 2 29","m":"c7d7 c8c1 f3d1 c1d1","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tfwtw","f":"1r2r1k1/2p2ppp/2Q5/p1BP4/2P1q1B1/2P5/P4PPP/R4RK1 w - - 4 20","m":"f1e1 e4e1 a1e1 e8e1","r":517,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tg5Z4","f":"r3r1k1/p1p2ppp/5b2/3R4/8/8/PPP2PPP/R1B3K1 w - - 1 17","m":"c2c3 e8e1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tg7hD","f":"3q2k1/pp3p2/4p1pB/8/4Q3/1P3P2/P5PP/2b4K w - - 0 27","m":"h6c1 d8d1 e4e1 d1e1","r":469,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"tgBPn","f":"3r2k1/pp3ppp/2n5/8/Q4P2/5NP1/PPP3BP/1K4q1 w - - 0 21","m":"f3g1 d8d1","r":451,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tgbdX","f":"r2R2k1/pp3ppp/1p6/1P6/4r3/2P1n3/5PPP/3R2K1 b - - 1 26","m":"a8d8 d1d8 e4e8 d8e8","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tgeEn","f":"3r2k1/p4ppp/4p1b1/8/3Q4/1B3P2/Pr4PP/2R2R1K b - - 0 25","m":"d8d4 c1c8 d4d8 c8d8","r":506,"t":"backRankMate endgame mate mateIn2 short"},{"i":"th9yV","f":"2r5/8/p1R2pkp/3p1pp1/Q2Pq3/P3P3/5PPP/6K1 w - - 0 27","m":"c6c8 e4b1 c8c1 b1c1 a4d1 c1d1","r":573,"t":"backRankMate endgame long mate mateIn3"},{"i":"thKQu","f":"r5k1/5ppp/p4q2/1p1R4/8/2Q3P1/P3PP1P/3R2K1 b - - 0 21","m":"f6c3 d5d8 a8d8 d1d8","r":465,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"thd2Z","f":"r1k5/pppn1p1p/8/8/2p5/2Pb1N2/PP1N2PP/4R1K1 b - - 0 17","m":"f7f5 e1e8","r":455,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ti0C0","f":"4r2k/1p4bp/3Pqpp1/p1Q5/8/P4N2/5PPP/2R3K1 w - - 3 33","m":"f3d4 e6e1 c1e1 e8e1","r":513,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"ti7w9","f":"1rR1n1k1/1P3ppp/4p3/8/1r6/5B2/5PPP/6K1 w - - 2 35","m":"c8b8 b4b1 f3d1 b1d1","r":483,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tidNf","f":"2q3k1/p4ppb/B1p4p/B1Pp4/1Q1PpP1P/7P/5P2/6K1 b - - 0 33","m":"c8a6 b4b8 a6c8 b8c8","r":505,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tj1L2","f":"2r1N2k/pp6/7p/3P1n2/8/P7/6PP/5R1K w - - 0 38","m":"f1f5 c8c1 f5f1 c1f1","r":553,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tj9Hx","f":"1r6/4k1p1/7p/p7/3Pp3/2r5/P4PPP/2R3K1 w - - 0 29","m":"c1c3 b8b1 c3c1 b1c1","r":466,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tjNnU","f":"2r3k1/5ppp/p7/1p1R4/8/1PP2P2/P3r1PP/5RK1 b - - 0 27","m":"c8c3 d5d8 e2e8 d8e8","r":497,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tjblC","f":"4r1k1/pp3ppp/4r3/2b5/4N3/1PP5/P4PPP/R3R1K1 w - - 1 22","m":"e4c5 e6e1 a1e1 e8e1","r":410,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tkPaP","f":"r3r1k1/ppp2Bpp/3n4/8/8/B1q5/P3QPPP/4RRK1 b - - 0 20","m":"d6f7 e2e8 a8e8 e1e8","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"tkWZU","f":"1k5r/ppp5/7p/2P3p1/2Pr4/4R3/P5PP/4R1K1 b - - 0 28","m":"d4c4 e3e8 h8e8 e1e8","r":491,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tkbnK","f":"r1b1r1k1/1p3ppp/p7/4Q3/P7/7P/2P2PP1/2RR2K1 b - - 0 19","m":"e8e5 d1d8 e5e8 d8e8","r":451,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tkt1S","f":"r2k2nr/pbpppRb1/1p4B1/4P1p1/8/4P1P1/PPP4P/RN2K3 b Q - 1 18","m":"g7e5 f7f8","r":590,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"tlPLw","f":"r3Q2k/1p4pp/p3p1p1/3bP3/3N4/P1q4P/2P2RP1/5RK1 b - - 0 24","m":"a8e8 f2f8 e8f8 f1f8","r":439,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tlRMx","f":"2b2rk1/1p3p2/4pPpp/3r4/p2R1Q2/P4N2/5PPP/3q2K1 w - - 0 27","m":"d4d1 d5d1 f3e1 d1e1","r":496,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tlaKD","f":"2r3k1/5r1p/4pBp1/p3Pp2/1p2p3/7Q/PP3PP1/K1q4R w - - 2 31","m":"h1c1 c8c1","r":494,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tliKZ","f":"2r5/1p3kp1/p5p1/8/3qP3/8/PP4PP/3R3K w - - 0 26","m":"d1d4 c8c1 d4d1 c1d1","r":420,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tlpM0","f":"R7/6pk/6bp/3p4/8/8/PrP3PP/5R1K w - - 2 37","m":"f1f8 b2b1 f8f1 b1f1","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tmAXR","f":"5r1k/pp3Qpp/8/6b1/3P4/6Pb/PP5P/4R1K1 b - - 0 24","m":"f8f7 e1e8 f7f8 e8f8","r":461,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tmIH0","f":"4r1k1/2pN1ppp/p1Q5/2P5/5B2/P7/5qPP/5R1K w - - 4 30","m":"f1f2 e8e1 f2f1 e1f1","r":443,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tmOAI","f":"2r3k1/p4pp1/6np/8/8/7P/P2r1PPB/3R2K1 w - - 0 30","m":"d1d2 c8c1 d2d1 c1d1","r":408,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tmdVL","f":"2Q4k/p5pp/8/1bp5/3p4/6BP/PPq3PK/8 b - - 3 31","m":"b5e8 c8e8","r":474,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"tmsnb","f":"1k1r2nN/pp4p1/8/5Q2/2P5/6P1/PP1qPPBP/R4K1R w - - 3 22","m":"f5b5 d2d1 a1d1 d8d1","r":550,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"tn7sm","f":"4r2k/6bp/3p4/3Q4/Pp6/1B2q3/6PP/3R2K1 w - - 0 34","m":"g1h1 e3e1 d1e1 e8e1","r":561,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"tnYPz","f":"r2r2k1/qp3ppp/8/p1p1P3/3pPP2/PP1QB1P1/7P/2RR2K1 b - - 0 26","m":"d4e3 d3d8 a8d8 d1d8","r":501,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"tnoBC","f":"r1b3k1/ppp2ppp/4p3/n3P3/2N2P2/8/PP2PPBP/3R2K1 b - - 0 16","m":"a5c4 d1d8","r":461,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"toci8","f":"1k3r2/ppp1br2/8/4R1p1/3P2Pp/2P5/PP5B/4R2K b - - 2 29","m":"e7d6 e5e8 f8e8 e1e8","r":574,"t":"backRankMate endgame mate mateIn2 short"},{"i":"topSx","f":"2r4k/pp2r3/4N1R1/3p4/3P4/P1P2R2/1n4PP/7K w - - 2 31","m":"e6f8 e7e1 f3f1 e1f1","r":524,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tpmOJ","f":"7k/p1p3pp/5p2/2P5/1p1n1P1P/3nR3/P2r2PK/8 b - - 4 35","m":"d3c5 e3e8","r":483,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"tqDsP","f":"2k4r/1bpp2R1/pp2p1p1/n3P3/2PP4/P1N1B1P1/1P5P/2K5 b - - 1 23","m":"h8h2 g7g8","r":503,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tqZZu","f":"8/1N6/6p1/4k3/8/3n4/r4PPP/3R2K1 w - - 3 36","m":"d1d3 a2a1 d3d1 a1d1","r":512,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tqyZl","f":"r1b4k/1p4pp/p2Q1r2/qB3p2/3P4/2P2N2/P4PPP/R3R1K1 b - - 0 18","m":"f6d6 e1e8","r":550,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"trGsL","f":"2r4k/pp4pp/6q1/4bb2/4Np2/3R1P2/PP3P1P/1K1R4 b - - 2 27","m":"g6g2 d3d8 c8d8 d1d8","r":549,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"trHN8","f":"8/1q2N1pk/2p4p/8/3Pp3/r7/5PPP/1R4K1 w - - 0 36","m":"b1b7 a3a1 b7b1 a1b1","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"trddU","f":"2b1r1k1/5pPp/8/3P4/p4q2/P2P4/1PP3PP/5R1K w - - 0 38","m":"f1f4 e8e1 f4f1 e1f1","r":493,"t":"backRankMate endgame mate mateIn2 short"},{"i":"trrWk","f":"2r3k1/p4ppp/1pP5/1nP2q2/Q3r3/P2RB2P/5PP1/3R2K1 b - - 0 29","m":"e4a4 d3d8 c8d8 d1d8","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ts8i6","f":"r3r1k1/5pbp/4q1p1/p2p4/3B3Q/6R1/1PP3PP/R6K w - - 4 28","m":"d4g7 e6e1 a1e1 e8e1","r":557,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"tsLbv","f":"1r4k1/1PB2ppp/p1p5/2P5/8/7P/1b3PP1/4R1K1 b - - 2 30","m":"b8b7 e1e8","r":505,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tseLQ","f":"4r1k1/p4ppp/8/7q/4Q3/4PP2/PP2K1PP/R2R4 b - - 0 27","m":"e8e4 d1d8 e4e8 d8e8","r":537,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"tsy3v","f":"6k1/3r4/1p4pp/1P6/6p1/r1P5/2R2PPP/3R2K1 w - - 0 29","m":"d1d7 a3a1 c2c1 a1c1 d7d1 c1d1","r":515,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"ttSr8","f":"7k/qr2Q1p1/7p/6p1/3P4/4P3/5PPP/1R4K1 w - - 0 38","m":"b1b7 a7a1 b7b1 a1b1","r":557,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ttdM9","f":"8/R5pp/3k4/1r1p1p2/8/2P2B2/5PPP/6K1 w - - 2 36","m":"a7g7 b5b1 f3d1 b1d1","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tteij","f":"8/ppr4k/4Q2p/8/3P4/8/PP3PPP/6K1 w - - 8 37","m":"d4d5 c7c1 e6e1 c1e1","r":544,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ttmyN","f":"4r2k/1pp3pp/1p2P3/8/8/8/PP1K2PP/5R2 b - - 3 30","m":"e8e6 f1f8","r":478,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"tuSt8","f":"k1Q5/pp4p1/qn2p1p1/3rP3/3P2P1/1P2B2r/1P3P2/2R2RK1 b - - 2 24","m":"b6c8 c1c8","r":465,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"turCy","f":"r1b1Q1k1/1p3ppp/p1q5/8/8/2N2N2/PP3PPP/4R1K1 b - - 0 24","m":"c6e8 e1e8","r":496,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tuusR","f":"r2Br1k1/2p2ppp/p7/1p2b3/8/2N5/PPP2PPP/3RR1K1 b - - 0 17","m":"e5c3 e1e8","r":527,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"tvHMD","f":"2r4k/6pp/8/5P2/8/8/2N2P2/4R1K1 b - - 0 43","m":"c8c2 e1e8","r":425,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"tvYks","f":"R7/P1k3pp/4p3/8/8/8/r4PPP/3R2K1 w - - 3 31","m":"d1d8 a2a1 d8d1 a1d1","r":488,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tvcUp","f":"3r4/1pp5/1k5p/p3N1b1/4P3/1B6/PPP2PPP/2KR4 w - - 2 20","m":"c1b1 d8d1","r":460,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"twRnN","f":"5r1k/1p4pp/1p3P2/8/1N6/P1P2P1P/1P2RKP1/3r4 b - - 0 32","m":"f8f6 e2e8 f6f8 e8f8","r":484,"t":"backRankMate endgame mate mateIn2 short"},{"i":"twU9Z","f":"6k1/6P1/R7/1p2p3/3p4/5r2/PPP5/1K6 w - - 0 36","m":"a6e6 f3f1","r":536,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"twWTn","f":"r6k/5pp1/4p2p/1N1p4/2n5/8/5PPP/r1Q3K1 w - - 0 35","m":"c1a1 a8a1","r":492,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"twYIO","f":"6k1/5ppp/8/4P3/8/RR3PK1/r5PP/2r5 b - - 0 33","m":"a2a3 b3b8 c1c8 b8c8","r":529,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"txGds","f":"6k1/p4ppp/1p2p3/5PP1/2r3r1/P7/1P3R1P/4RK2 b - - 2 26","m":"e6f5 e1e8","r":477,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"txQmt","f":"2r5/p4pkp/1p2p3/7p/3P4/8/PP3PPP/3R2K1 w - - 1 24","m":"d1d2 c8c1 d2d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"txbYb","f":"1r6/p3kp1Q/4pp2/8/8/P7/2Pq1PPP/3R2K1 w - - 1 22","m":"d1d2 b8b1 d2d1 b1d1","r":582,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ty8qk","f":"rnb3k1/ppp2rpp/8/8/2p5/N7/PPPP2PP/R1BQ1q1K w - - 2 12","m":"d1f1 f7f1","r":477,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"tyMft","f":"6k1/1pp1rppp/1p4q1/1b1R4/8/P1R1BP2/1P2Q1PP/6K1 b - - 0 27","m":"b5e2 d5d8 e7e8 d8e8","r":587,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tyiR0","f":"5rk1/5p1p/3p1Bp1/3r4/Rp3P2/1P2R3/1Pb3PP/7K w - - 0 30","m":"a4b4 d5d1 e3e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"tz7C8","f":"5nk1/1R3pp1/p3p2p/3pP3/P1rP4/1N6/5PPP/6K1 w - - 5 31","m":"b3c5 c4c1","r":578,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"tzIQA","f":"2Q2r1k/6pp/p3R3/1p4q1/8/7P/PP3PP1/4R1K1 b - - 0 30","m":"f8c8 e6e8 c8e8 e1e8","r":417,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"tzVOI","f":"6k1/5p1p/p5p1/P7/1r6/8/5PPP/2R3K1 w - - 0 34","m":"c1c6 b4b1 c6c1 b1c1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"tznRs","f":"2r3k1/5pp1/p2pp2b/1p5P/3PN3/6Q1/PPr5/K2q2R1 w - - 0 30","m":"g1d1 c2c1 d1c1 c8c1","r":470,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u0nvo","f":"8/5pkp/6p1/3pq3/8/3P4/P2r1PPP/4R1K1 w - - 0 26","m":"e1e5 d2d1 e5e1 d1e1","r":479,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"u1dgz","f":"2r3k1/5p1p/4b1p1/8/4R3/1p6/1R4PP/7K w - - 1 40","m":"e4e3 c8c1 e3e1 c1e1","r":483,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u1iy3","f":"4r1k1/p1pR1ppp/1pp5/2P1Q3/1P6/P1N4P/2P3PK/5q2 b - - 0 27","m":"e8e5 d7d8 e5e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u2OLH","f":"6k1/5ppp/1b2p3/1p1b4/1PqPpP2/P3B3/4N1PP/2Q4K b - - 3 28","m":"c4e2 c1c8 b6d8 c8d8","r":416,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u2oIH","f":"8/k4p2/2B5/p1q5/P7/5P2/1r4PP/2R4K w - - 0 38","m":"c1c5 b2b1 c5c1 b1c1","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u34YP","f":"5r1k/1p3ppp/p2R4/n1p2P2/8/4P3/1PP1BKPP/8 b - - 0 27","m":"f8d8 d6d8","r":467,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"u3APy","f":"Q4r1k/2p3pp/p6q/1pp1Rp2/8/1PPP2PP/1P3P2/4R1K1 b - - 0 28","m":"f8a8 e5e8 a8e8 e1e8","r":546,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"u3OQT","f":"6k1/2p2ppp/p5r1/4N3/2Pp1q2/3P3P/P3PP2/1R2RK2 b - - 0 26","m":"f4e5 b1b8 e5e8 b8e8","r":536,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"u46vN","f":"5r1k/1pp1npp1/p6p/4P3/3rN3/4Q3/2q2PPP/2R3K1 w - - 0 28","m":"c1c2 d4d1 e3e1 d1e1","r":492,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u475N","f":"5rk1/6p1/p2pp2p/1pp5/3pP1P1/3PP2P/PPP1Q3/1K3r2 w - - 0 26","m":"e2f1 f8f1","r":461,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"u4Cgw","f":"4r2k/p2R2pp/8/4Rp2/8/2N2P2/Prn1N1PP/7K b - - 0 28","m":"e8e5 d7d8 e5e8 d8e8","r":544,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u4Lzv","f":"r3Q1k1/5ppp/1n1B1b2/3n4/1p1P3P/r7/P4PP1/4R1K1 b - - 4 28","m":"a8e8 e1e8","r":421,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"u4j7J","f":"5r1k/p4Npp/1p2pb1q/5p1n/3Q4/5PP1/PP3PKP/3R1R2 b - - 9 25","m":"f8f7 d4d8 f6d8 d1d8 f7f8 d8f8","r":539,"t":"backRankMate long mate mateIn3 middlegame sacrifice"},{"i":"u4zY3","f":"3q4/8/4Qbk1/4Pp1p/1P4p1/P7/1B4PP/7K w - - 2 48","m":"e5f6 d8d1 e6e1 d1e1","r":508,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u5DpV","f":"1k1r4/ppp4p/8/3Q1p2/5P1K/1n2R1PP/8/8 b - - 0 40","m":"d8d5 e3e8 d5d8 e8d8","r":494,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u5Gsg","f":"1r4k1/p1p2ppp/4p3/8/3P1N2/2P5/P1b2PPP/2R3K1 w - - 0 20","m":"c1c2 b8b1 c2c1 b1c1","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u5iz0","f":"1brr2k1/Bp3ppp/8/8/8/P3Q1P1/1q3P1P/R3R1K1 b - - 2 23","m":"d8e8 e3e8 c8e8 e1e8","r":412,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"u64FD","f":"2r5/p3R3/k4N2/5p2/3P1P2/4P1rp/PP6/K1R5 w - - 3 46","m":"c1c8 g3g1 c8c1 g1c1","r":499,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u6JG5","f":"5rk1/3p1rpp/p3p3/1pb1B3/4b3/PB6/1PP3PP/R3R2K w - - 0 21","m":"e1e4 f7f1 a1f1 f8f1","r":421,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"u6QGg","f":"5rk1/5q1n/p7/1p2Q3/8/P7/1PP1R1PP/R6K w - - 4 33","m":"a1e1 f7f1 e1f1 f8f1","r":574,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"u6hBK","f":"3rr3/p3kpR1/3q4/1pn1pP2/8/3B4/PPP3Q1/1K2R3 w - - 3 30","m":"d3b5 d6d1 e1d1 d8d1","r":535,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"u7X1Z","f":"3rkb1r/1p2pppp/p1n2B2/2p5/8/N1P3Q1/PP2NPPP/R2q1K1R w k - 3 13","m":"a1d1 d8d1","r":466,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"u7bdm","f":"r4Q1k/pp4pp/2np4/2p3q1/8/2PP4/P1P3PP/R4RK1 b - - 2 17","m":"a8f8 f1f8","r":441,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"u81aT","f":"8/1p2rqk1/1P3pp1/8/8/8/5PPQ/2R3K1 w - - 5 42","m":"c1c7 e7e1","r":568,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"u8WeY","f":"r2r1k2/ppp2pbp/2p3p1/8/4P3/2P5/PP2bPPP/R1B1R1K1 w - - 0 16","m":"e1e2 d8d1 e2e1 d1e1","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"u8tUj","f":"4Q1k1/2q2ppp/p4n2/1pr5/8/1P5P/P4PP1/4RBK1 b - - 1 27","m":"f6e8 e1e8","r":411,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"u99I1","f":"8/ppkr3p/2p5/4q3/8/1P6/P5PP/4R2K w - - 0 37","m":"e1e5 d7d1 e5e1 d1e1","r":444,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"u9COw","f":"3r1rk1/1Q3pp1/8/p6p/1b2NP2/1P6/PP2b1PP/R1B1R2K w - - 4 27","m":"e1e2 d8d1 e2e1 d1e1","r":553,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"u9Dg6","f":"2r3k1/R4ppp/p3p3/3p4/8/3K3P/PP3PP1/8 b - - 1 23","m":"c8c6 a7a8 c6c8 a8c8","r":559,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"u9V1J","f":"r4r2/2p3kp/b1p3p1/p2p4/8/2P1R2Q/PPB3PP/R4q1K w - - 2 22","m":"a1f1 f8f1","r":433,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"uAju8","f":"2r3k1/1p3pp1/p7/4q3/8/P7/1P3PPP/4R1K1 w - - 0 26","m":"e1e5 c8c1 e5e1 c1e1","r":582,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"uAtDS","f":"r5k1/pb3ppp/1p3n2/1Rp1p3/2PqP3/3B4/PQ3PPP/3R2K1 w - - 0 18","m":"d3b1 d4d1","r":581,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"uB5lR","f":"r4rk1/pp4p1/2pQp2p/4n3/4P3/2N3R1/PP4PP/4Rq1K w - - 3 24","m":"e1f1 f8f1","r":404,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"uCVTb","f":"2r3k1/pq3ppp/1p2p3/8/1P2n3/P2QPN2/5PPP/5RK1 b - - 1 19","m":"c8c3 d3d8","r":474,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uCxhk","f":"2k5/ppn3pp/2p5/2P1p3/1PN5/P7/r4PPP/4R1K1 w - - 6 28","m":"e1e5 a2a1 e5e1 a1e1","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uD23u","f":"3rr1k1/p4pbp/2p3p1/8/8/2P2BB1/1PQ2PPP/3Rq1K1 w - - 3 26","m":"d1e1 e8e1","r":490,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"uDHyz","f":"4r1k1/1N3ppb/p6p/4PP2/6P1/3pP2P/P7/2R3K1 b - - 0 28","m":"e8e5 c1c8 e5e8 c8e8","r":498,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uDKZP","f":"6k1/2r2ppp/6b1/2N1p3/1P1p4/2P2P2/r5PP/2RR2K1 b - - 0 28","m":"d4c3 d1d8","r":485,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uDxEi","f":"3Rr1k1/5ppp/1p2r3/2p2b2/4p3/P6P/1P2BPP1/3R2K1 b - - 3 23","m":"e8d8 d1d8 e6e8 d8e8","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uEFJ0","f":"2k1r3/pp3p1p/3p2p1/P7/3NrP2/2P5/1P3PPP/R4RK1 w - - 1 21","m":"f1e1 e4e1 a1e1 e8e1","r":497,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uEaHH","f":"1r4k1/2B2ppp/p1p1bn2/8/4P3/5P2/PPP2KPP/3R4 b - - 0 18","m":"b8b2 d1d8 f6e8 d8e8","r":532,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uEukg","f":"2kr4/ppp5/8/7N/8/4bR2/PPP3PP/2Rr3K w - - 7 25","m":"c1d1 d8d1 f3f1 d1f1","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uFMvF","f":"Q7/2p1Nppk/1p3n1p/p7/1P1P4/2q5/6PP/4R1K1 w - - 0 30","m":"g1h1 c3e1","r":491,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"uFdl4","f":"5rk1/pp3p1p/2r1pBp1/8/8/1P3R2/P3qPPP/4R1K1 w - - 0 25","m":"e1e2 c6c1 e2e1 c1e1","r":491,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uH2AT","f":"r4rk1/1p3ppp/p4q2/3p4/P2p1P2/3P4/1PP1Q1PP/4RRK1 b - - 1 18","m":"f8e8 e2e8 a8e8 e1e8","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uH7q6","f":"5r1k/3RR2p/6b1/p7/5p2/2r4P/P4PPB/6K1 w - - 0 33","m":"d7a7 c3c1 e7e1 c1e1","r":420,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uI7pg","f":"r4Q1k/pp4pp/2p1P3/5RP1/3q3P/P7/1PK5/8 b - - 1 29","m":"a8f8 f5f8","r":483,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"uIwun","f":"3rQ1k1/pp3ppp/1bp3q1/8/6N1/1PP2B1P/P5P1/4R2K b - - 4 28","m":"d8e8 e1e8","r":498,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uIxkV","f":"2r5/5ppk/1p5p/p7/P2Q4/4P3/5PPP/1Rr3K1 w - - 1 33","m":"b1c1 c8c1 d4d1 c1d1","r":440,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"uIyYf","f":"3r2k1/ppR2ppp/8/3P4/1P3b2/P7/5P2/7K b - - 0 41","m":"d8d5 c7c8 d5d8 c8d8","r":436,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uJqnT","f":"1r4k1/2p2ppp/R1P1r1q1/8/4n3/4B1P1/1Q2PPBP/4R1K1 b - - 2 24","m":"b8b2 a6a8 b2b8 a8b8 e6e8 b8e8","r":562,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"uK8Lq","f":"5rk1/pp3ppp/6q1/3r1b2/8/P3Q3/1PN1R1PP/1K5R b - - 2 26","m":"f8c8 e3e8 c8e8 e2e8","r":571,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"uLRfa","f":"r1b2q1k/p5pp/2r5/1p6/1QB4P/P4P2/1P4P1/1K2R3 b - - 1 28","m":"f8b4 e1e8 b4f8 e8f8","r":544,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uLnJa","f":"2Q3rk/6pp/2R1B3/8/8/5PP1/6PK/q7 b - - 2 30","m":"g8c8 c6c8","r":444,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uM0Sf","f":"1k5r/2p1R3/ppP2p2/6p1/6P1/2P2N2/PP3P2/K7 w - - 1 34","m":"f3d4 h8h1 e7e1 h1e1","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uM7qN","f":"3r2k1/pB3ppp/3Rp2b/1p6/8/P5P1/2R2P1P/5K2 b - - 0 27","m":"d8d6 c2c8 d6d8 c8d8","r":553,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uMz6H","f":"2k3r1/pp4pp/4p1p1/1P6/P7/2Pr2P1/5RPP/R6K w - - 0 27","m":"a1a3 d3d1 f2f1 d1f1","r":547,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"uNRRe","f":"rn3rk1/1b3ppp/p3p3/2p5/2P2q2/5N1P/PP2BPP1/R2QR1K1 b - - 3 16","m":"f8d8 d1d8","r":454,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"uNVAe","f":"8/Q1P2pk1/b3p2p/3r1p2/8/P7/6PP/7K w - - 1 39","m":"a7a6 d5d1 a6f1 d1f1","r":431,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"uNnVz","f":"7k/1pp3pp/3p4/4p3/1q6/6P1/P5KP/5R2 b - - 0 33","m":"e5e4 f1f8","r":490,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"uO3v0","f":"2r3k1/5pp1/4p2p/pN1p4/5B2/3qP3/5PPP/3R2K1 w - - 0 25","m":"d1d3 c8c1 d3d1 c1d1","r":408,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uOVvy","f":"2r2k2/pR4pp/8/8/3P4/P1r5/5PPP/R5K1 w - - 0 29","m":"b7a7 c3c1 a1c1 c8c1","r":479,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"uPZWF","f":"5r1k/2q3pp/p5p1/1p2R3/3P4/7P/PP3QP1/4R1K1 b - - 0 29","m":"f8f2 e5e8 f2f8 e8f8","r":465,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"uQ7Uq","f":"4r1k1/pbp2ppp/2p5/2p5/2P2P2/1P3B2/P4KPP/3R4 b - - 3 22","m":"e8e6 d1d8 e6e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uQfXF","f":"r5k1/pp1b4/5rpp/8/1n2Q3/6R1/PP4PP/1B1R1q1K w - - 2 27","m":"d1f1 f6f1","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"uR1bM","f":"r1b1r1k1/ppp2ppp/8/3q4/3PP3/8/P4PPP/R1B1Q1K1 w - - 0 15","m":"e4d5 e8e1","r":425,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"uR4pq","f":"8/p7/1r1bR2Q/8/2p2Pk1/8/P5PP/7K w - - 1 38","m":"e6d6 b6b1 d6d1 b1d1","r":574,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"uRF5q","f":"2r5/1p4kp/p5p1/4R3/2N5/8/6PP/7K w - - 1 42","m":"c4d6 c8c1 e5e1 c1e1","r":518,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"uSGFf","f":"4r1k1/1b3ppp/2p5/p1Bp4/3P4/P1P5/1q3PPP/1Q4K1 w - - 0 25","m":"b1b2 e8e1","r":563,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uSYgY","f":"5r1k/b5pp/8/p3P3/Ppr5/7P/N2R2PK/2B5 b - - 0 37","m":"f8f1 d2d8 f1f8 d8f8","r":516,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uSceG","f":"r5k1/pp3ppp/2n5/2pq4/8/1P1P3P/P3QPPN/4R1K1 b - - 0 19","m":"c6d4 e2e8 a8e8 e1e8","r":446,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"uSsEf","f":"8/5r1p/2kp4/1R2p1B1/8/8/6PP/1R3q1K w - - 4 43","m":"b1f1 f7f1","r":505,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uSzub","f":"3r2k1/pp3pp1/2p5/5PP1/7R/4b3/PPP5/1K1r3R w - - 4 26","m":"h1d1 d8d1","r":435,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uTIRw","f":"1r2Q2k/1q4pp/6n1/3P4/1p6/4R3/PP3PP1/R5K1 b - - 0 38","m":"b8e8 e3e8 g6f8 e8f8","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uTh7f","f":"4r1k1/5p2/6p1/3R4/2p1r1p1/PpP3B1/1P3PPP/3R2K1 w - - 0 33","m":"d5d2 e4e1 d1e1 e8e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uTq5D","f":"2q3k1/1b3pp1/p3p2p/1p1pP3/3P1P2/P7/1P1Q2PP/1B5K w - - 0 26","m":"d2d3 c8c1 d3d1 c1d1","r":438,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uTwYw","f":"2rQ2k1/Bp3ppp/5n2/p7/8/P3P2P/1P2KPP1/3R2bq b - - 2 30","m":"c8d8 d1d8 f6e8 d8e8","r":469,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uUZ99","f":"7k/p5pp/8/2p4P/8/P2b1pPQ/1P3P2/3q1BK1 b - - 2 41","m":"d3e2 h3c8 d1d8 c8d8","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uUmhB","f":"6k1/pr3ppp/1p2p3/3rP3/1P2n3/4P1P1/1B3P1P/2R2RK1 b - - 1 24","m":"e4d2 c1c8 d5d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uWTW8","f":"1r3r1k/pqp3pp/5p2/7P/3Q4/P7/1PP2P2/1K1R3R b - - 0 24","m":"f8d8 d4d8 b8d8 d1d8","r":465,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uWa9c","f":"5r1k/2p2Qpp/p7/1p6/8/1PN5/1PP4q/1K2R3 b - - 1 26","m":"f8f7 e1e8 f7f8 e8f8","r":451,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uWvMJ","f":"4r1k1/2q1r1b1/2n2n1p/1pPp1Q2/pP6/P4PB1/5PPP/3RR1K1 w - - 0 26","m":"g3c7 e7e1 d1e1 e8e1","r":599,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"uX9fC","f":"1r4k1/5ppp/8/p3PR2/2n5/N7/6PP/7K w - - 0 30","m":"a3c4 b8b1 f5f1 b1f1","r":521,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"uXhUG","f":"2rr4/5pkp/R1n2p2/1p6/4R3/1PP2N2/2P2PPP/6K1 w - - 1 21","m":"f3h4 d8d1 e4e1 d1e1","r":469,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uXrVf","f":"3r2k1/pp2Rppp/2p5/2Pr4/3p4/8/PP3PPP/3R2K1 b - - 1 23","m":"d8d7 e7e8","r":569,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"uYMtK","f":"1r4k1/5r1p/4p1pQ/1p1pP1B1/8/b6R/6PP/R4q1K w - - 2 28","m":"a1f1 f7f1","r":406,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"uYmlr","f":"r1b3k1/1pp2ppp/6r1/p1p1n3/2P4q/P3P1PP/1P3P2/R1BQRBK1 b - - 0 16","m":"h4e4 d1d8","r":574,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"uZ11B","f":"r5k1/5ppp/5n2/1R6/4PP2/3P3P/1p2K1P1/8 b - - 1 29","m":"a8a2 b5b8 f6e8 b8e8","r":567,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uZWFJ","f":"1r2r2k/5p1p/p4NpB/1b6/2n4Q/8/1P3PPP/1R2q1K1 w - - 4 32","m":"b1e1 e8e1","r":429,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"uZqLW","f":"5rk1/pQ2pr1p/6p1/1P6/8/2P5/P5PP/R3q2K w - - 0 26","m":"a1e1 f7f1 e1f1 f8f1","r":492,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ua1Qk","f":"8/2k2p2/3pr3/2Pq4/8/8/1P4PP/3R3K w - - 0 37","m":"d1d5 e6e1","r":415,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"uaKKK","f":"rn4k1/p1q1npp1/4p2p/2p5/2B5/4PN2/PP1Q1PPP/3R2K1 b - - 0 17","m":"g8f8 d2d8 c7d8 d1d8","r":508,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"uaRSO","f":"k2Q2r1/ppr2q2/6p1/1Pp2p1p/P7/7B/2P2PPP/3R1RK1 b - - 1 31","m":"g8d8 d1d8 c7c8 d8c8","r":518,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uacez","f":"5rk1/p4ppp/8/2pR4/B4Q2/2P5/P5PP/4r2K w - - 1 27","m":"f4f1 e1f1","r":555,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"uadVo","f":"2k1r3/1bpp4/1pr4p/8/1P5P/PK6/3B4/5R2 b - - 2 34","m":"e8e4 f1f8 e4e8 f8e8","r":418,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uasHv","f":"1k6/ppp1q3/4p3/2rbPp2/Q5r1/P3P3/1P1B2PR/1K1R4 b - - 5 25","m":"g4a4 h2h8 e7d8 h8d8","r":510,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ub8Bq","f":"5r1k/p1p3pp/8/2pqP3/P7/1P2p3/2Q3PP/3R3K w - - 0 26","m":"d1d5 f8f1","r":488,"t":"backRankMate endgame master mate mateIn1 oneMove queenRookEndgame"},{"i":"ubU5D","f":"3r2k1/p2qn1pp/4p3/3r4/8/1P6/1B2QPPP/2RR2K1 w - - 4 24","m":"e2g4 d5d1 c1d1 d7d1 g4d1 d8d1","r":550,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"ubfSJ","f":"3b1Q1k/p5pp/7r/2p1p3/P1N1Pq2/2P3P1/1P2R2P/5RK1 b - - 0 32","m":"f4f8 f1f8","r":544,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ubh85","f":"4r1k1/pp3pp1/6b1/3p4/8/1B2r1P1/PP4PP/R1Q4K w - - 0 29","m":"c1c7 e3e1 a1e1 e8e1","r":436,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ud8O3","f":"2kr4/1b3pQ1/2pq3p/1p6/p7/P4P2/BPP3PP/1K4R1 w - - 1 28","m":"g7g3 d6d1 g1d1 d8d1","r":466,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"udF98","f":"2r1rQ1k/p5pp/1p2p3/3pP3/3P3n/2P2R2/P2q2PP/5RK1 b - - 9 26","m":"e8f8 f3f8 c8f8 f1f8","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"udJzS","f":"1k1r4/pp3p2/4p3/3r4/8/2P3P1/PPQ2q1P/K2RR3 w - - 3 27","m":"c2f2 d5d1 e1d1 d8d1","r":419,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"udNfH","f":"r5k1/3R1ppp/8/4rP2/p3p3/2P4P/PPK5/5R2 b - - 1 29","m":"a8a5 d7d8 e5e8 d8e8","r":517,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"udUXY","f":"1r6/5k1p/6p1/5p2/8/2b2P2/PP2R1PP/7K w - - 0 34","m":"b2c3 b8b1 e2e1 b1e1","r":502,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"udeE4","f":"2r2rk1/pp3p1p/8/8/3P1p2/P6R/1P4PP/5R1K w - - 2 25","m":"f1f4 c8c1 f4f1 c1f1","r":463,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"udkDR","f":"2r3k1/p4pp1/1p5p/3p4/8/3RP3/PP2NPPP/2r3K1 w - - 1 30","m":"e2c1 c8c1 d3d1 c1d1","r":407,"t":"backRankMate endgame mate mateIn2 short"},{"i":"udllf","f":"r1n1r1k1/3R1ppp/p1p5/1p1b1P2/4p3/P3B2P/1PP1B1P1/5RK1 b - - 2 24","m":"e8e7 d7d8 e7e8 d8e8","r":588,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ueTZE","f":"3Q4/pk5p/N1q5/1p6/6p1/P7/1P3PPP/6K1 w - - 2 37","m":"a6b4 c6c1 d8d1 c1d1","r":582,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uec8O","f":"3k4/1b6/p3Rr1q/3p4/3P2Q1/P1P1b2B/1P4PP/5RK1 w - - 1 38","m":"g1h1 f6f1","r":494,"t":"backRankMate hangingPiece master mate mateIn1 middlegame oneMove"},{"i":"uewu5","f":"3r2k1/5ppp/8/p3P3/1p3P2/4N2P/qP1Q2P1/2R4K b - - 1 30","m":"d8d2 c1c8 d2d8 c8d8","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ufCyh","f":"2kr4/pp3p2/6p1/4p2r/2B5/1Q2P3/PPP2P1P/1K1q2R1 w - - 6 26","m":"g1d1 d8d1","r":440,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ufI7Y","f":"8/6k1/1Np1p2p/2Pb4/1r6/p7/P3RPPP/6K1 w - - 0 31","m":"b6d5 b4b1 e2e1 b1e1","r":587,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ufMDk","f":"r4r1k/ppp3p1/1b6/3pn1qb/8/2P2N2/PPQ3PP/RN3R1K w - - 0 18","m":"f3g5 f8f1","r":585,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"ufair","f":"4r1k1/8/4q2p/1Q4p1/2p5/2P5/5PPP/5RK1 w - - 0 32","m":"f1d1 e6e1 d1e1 e8e1","r":567,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"ufpqB","f":"2r2k1Q/pp1bbpp1/1q2p1n1/3pP3/1P1N4/P6R/1Br2PPP/R5K1 b - - 2 20","m":"g6h8 h3h8","r":441,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"uggxa","f":"2r3k1/1pq2np1/7p/1p1p3Q/P2N4/7R/3B2PP/7K w - - 0 31","m":"h5d5 c7c1 d2c1 c8c1","r":575,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"uhKu1","f":"3r1k2/5pp1/p6p/4q3/8/8/P4PPP/4R1K1 w - - 0 33","m":"e1e5 d8d1 e5e1 d1e1","r":430,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"uhNUl","f":"2r5/6pp/p2N1p1k/8/4q3/6Q1/6PP/7K w - - 0 53","m":"d6e4 c8c1 g3e1 c1e1","r":577,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uhOne","f":"6k1/3rrppp/8/1R2p3/1p6/3nNNK1/6PP/8 b - - 3 35","m":"e5e4 b5b8 d7d8 b8d8 e7e8 d8e8","r":543,"t":"backRankMate endgame long mate mateIn3"},{"i":"uhpZw","f":"3r3k/3Q2pp/1q1b1p2/3p4/1p1P3B/5N2/PP3PPP/3KR3 b - - 2 24","m":"d8d7 e1e8 d6f8 e8f8","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uhtj0","f":"6k1/5ppp/4p3/8/2N2P1r/2br1B1P/5BK1/1R6 b - - 6 35","m":"h4f4 b1b8 d3d8 b8d8","r":530,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"ui003","f":"4r1k1/1p1Q1ppp/8/1pP1q3/1P6/P7/5PPP/5RK1 w - - 2 30","m":"f1d1 e5e1 d1e1 e8e1","r":537,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"ui33U","f":"4r1k1/2p1qpp1/Q1p4p/8/8/2P5/P1P2PPP/1R4K1 w - - 0 21","m":"a6c6 e7e1 b1e1 e8e1","r":450,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"ui5h0","f":"8/3rr2k/3PQ3/1p4p1/1P3p2/8/P4PPB/6K1 w - - 0 42","m":"d6e7 d7d1 e6e1 d1e1","r":518,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ui6iw","f":"2r3k1/p3pp1p/1p4p1/8/1P6/P2qP3/5PPP/3R2K1 w - - 0 26","m":"d1d3 c8c1 d3d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"uiPEM","f":"3r2k1/5ppp/p7/2b5/P2N2r1/2PKR1P1/6P1/4R3 b - - 5 31","m":"c5d4 e3e8 d8e8 e1e8","r":405,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uiroB","f":"4r2k/p5p1/7p/3q4/8/8/PPP3PP/1K1R4 w - - 0 26","m":"d1d5 e8e1 d5d1 e1d1","r":473,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"uirwg","f":"4rk2/pQ3p2/4q3/2p5/2N5/8/PPP5/1K4R1 w - - 1 38","m":"b7g2 e6e1 g1e1 e8e1","r":484,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"ujc1F","f":"5k2/6b1/p6p/3q2p1/Npr1pp2/7P/PP3PPB/3R2K1 w - - 0 37","m":"d1d5 c4c1 d5d1 c1d1","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ujm6F","f":"7k/1p2rppp/p7/2R5/5KP1/8/5P2/8 b - - 0 40","m":"b7b6 c5c8 e7e8 c8e8","r":482,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"uk7N3","f":"4r2k/pp2r1pp/6p1/5P2/6Q1/8/3q1RPP/3R3K w - - 0 28","m":"f2d2 e7e1 d1e1 e8e1","r":462,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"ukcei","f":"3r1r1k/p6p/Bp3p1n/7P/2P2R1Q/3q4/PP3PP1/1K5R w - - 7 30","m":"b1a1 d3d1 h1d1 d8d1","r":562,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"ukwXm","f":"r6k/1p4pp/8/4p2n/1PP1Pp2/4q3/1B1Q3P/2KR4 b - - 5 27","m":"e3e4 d2d8 a8d8 d1d8","r":554,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"ul27d","f":"6k1/1p3ppp/2r1p3/4P3/3K4/4P3/R5PP/8 b - - 2 36","m":"c6c7 a2a8 c7c8 a8c8","r":595,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ulN2c","f":"5rk1/pp4pp/4p3/2p1N3/8/2P1P3/PP1R2PP/3R1q1K w - - 1 24","m":"d1f1 f8f1","r":482,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"ulWHt","f":"3r1b2/1b3Qpk/p3pp1B/1P1rN3/8/8/1P3PPP/R5K1 w - - 2 26","m":"f7b7 d5d1 a1d1 d8d1","r":541,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"uleYt","f":"4k3/7R/3rb3/4q3/1p3p2/1P3P2/P3Q1PP/1B5K w - - 1 42","m":"e2e5 d6d1 e5e1 d1e1","r":400,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"umCGl","f":"1k2r3/ppp5/3p2p1/3P4/2P5/1P2Q1Pp/P6P/5R1K b - - 0 26","m":"e8e3 f1f8 e3e8 f8e8","r":469,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"umG5l","f":"4r1k1/p4ppp/1p6/2pR4/4R1P1/8/P5PP/6K1 b - - 0 25","m":"e8e4 d5d8 e4e8 d8e8","r":431,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"umPvJ","f":"5rk1/p5pp/1b6/7Q/2b1p3/8/PP2B1PP/R1Bq3K w - - 5 28","m":"e2d1 f8f1","r":527,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"umW2L","f":"r4r1k/1n4pp/2p1Q3/pp2p1b1/1P2P3/PBBP4/2P2qPP/RR5K w - - 6 25","m":"b1f1 f2f1 a1f1 f8f1","r":556,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"unAqc","f":"rnbk1Q1r/ppppn3/6pB/b3P3/3P4/2P5/PP4PP/RN3RK1 b - - 1 14","m":"h8f8 f1f8","r":477,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"unlBO","f":"3rkb1r/Qp2pppp/6n1/8/4p3/6B1/PP2NPPP/R2q1K1R w k - 3 18","m":"a1d1 d8d1","r":440,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"uoH2B","f":"2rr2k1/p4ppp/bp1p4/8/4P3/P3qP2/Q5PP/1B2R2K w - - 0 27","m":"e1e3 c8c1 e3e1 c1e1","r":591,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uoTK7","f":"r4rk1/p6p/3Rb1p1/8/4Q3/8/PPP3PP/4Rq1K w - - 2 25","m":"e1f1 f8f1","r":568,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uoXCv","f":"7k/p5pp/1p3q2/n2B1p2/2P4Q/8/P4PPP/6K1 w - - 0 29","m":"h4f4 f6a1 f4c1 a1c1","r":477,"t":"backRankMate endgame mate mateIn2 short"},{"i":"upBeq","f":"5r2/3kb2Q/p3p2p/1p2P1B1/3P4/2P5/PP4PP/R4q1K w - - 3 29","m":"a1f1 f8f1","r":470,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"upXU0","f":"r1b1r1k1/pp3ppp/8/2p5/4Q3/8/PPP1BPPP/3RK2R b K - 0 14","m":"e8e4 d1d8 e4e8 d8e8","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"upcAG","f":"r4k2/pR6/5p2/3ppP2/8/3P3r/PPP5/1K4R1 w - - 0 28","m":"g1g7 h3h1 g7g1 h1g1","r":564,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"upkow","f":"rb5k/1p3rpp/p7/2pn2B1/3p4/N5P1/PPP2PKP/R3R3 b - - 3 23","m":"b7b5 e1e8 f7f8 e8f8","r":568,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"uq0vf","f":"r1b2rk1/pp3ppp/4p3/b5P1/4Pq1P/P2Q1P2/1PP5/1K1R1B1R b - - 1 21","m":"f8d8 d3d8 a5d8 d1d8","r":414,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"uqe7R","f":"4Q2k/6pp/2b2b2/p1p2p2/2Pq1B2/1P3P2/P5PP/4R2K b - - 7 28","m":"c6e8 e1e8","r":521,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uqznd","f":"8/p2n1pp1/r5kp/8/8/1P6/5PPP/3R2K1 w - - 0 35","m":"d1d7 a6a1 d7d1 a1d1","r":504,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"ur2YN","f":"3rr3/pp3pk1/7p/6p1/2QP4/1BP5/PP6/K3qR2 w - - 7 35","m":"f1e1 e8e1 b3d1 e1d1","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ur4NJ","f":"r1b1r1k1/4Qppp/4p3/2p1P3/ppB2P2/8/PPP3PP/2KRR3 b - - 0 20","m":"e8e7 d1d8 e7e8 d8e8","r":549,"t":"backRankMate endgame mate mateIn2 short"},{"i":"ur8wW","f":"3r1rk1/5p2/6p1/p7/1pQ1P3/3B3P/PPP5/1K3q2 w - - 0 29","m":"d3f1 d8d1","r":401,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"urIuT","f":"7R/kp3qP1/p7/2bpp3/6P1/2P5/PP6/K7 w - - 2 46","m":"g7g8q f7f1","r":573,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"uramh","f":"6k1/5ppp/8/1Rp5/3r2P1/4K2P/8/8 b - - 2 44","m":"d4d5 b5b8 d5d8 b8d8","r":533,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"urhVm","f":"r5k1/2p2pp1/p1p2n1p/8/4r3/2PP1R2/P1P2qPP/R1B4K w - - 0 20","m":"f3f2 e4e1 f2f1 e1f1","r":411,"t":"backRankMate endgame mate mateIn2 short"},{"i":"urqtP","f":"r1b2rk1/pp4p1/2n1p3/6BQ/8/6R1/P5PP/3R1q1K w - - 2 23","m":"d1f1 f8f1","r":513,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"urutp","f":"6k1/pp3p1p/3p1RpQ/8/3RP3/8/PP4PP/2r4K w - - 1 28","m":"d4d1 c1d1 f6f1 d1f1","r":538,"t":"backRankMate endgame hangingPiece mate mateIn2 queenRookEndgame short"},{"i":"us6U2","f":"8/5ppk/7p/3p4/3P4/3rqP2/1QR3PP/6K1 w - - 10 36","m":"g1h1 e3e1","r":515,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uswRn","f":"2r1kb1r/pp1npppp/8/1N6/3PpPQ1/8/PP6/K1qR2N1 w k - 3 17","m":"d1c1 c8c1","r":509,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"utKHA","f":"r1bR3k/pp2r1pp/2p2p2/b7/2B1P3/2N5/PPP2PPP/2KR4 b - - 1 17","m":"a5d8 d1d8 e7e8 d8e8","r":497,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"utdZO","f":"1r4k1/3R4/2p5/p4P1p/4PN2/P7/6PP/7K w - - 1 41","m":"f4e6 b8b1 d7d1 b1d1","r":539,"t":"backRankMate endgame mate mateIn2 short"},{"i":"utzrr","f":"3r2k1/5p2/b3p1pp/4P3/8/1R3P2/6PP/1Q1q3K w - - 2 37","m":"b1d1 d8d1","r":544,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uuOrB","f":"2B5/2r5/P2R4/4p1k1/5p2/8/6PP/7K w - - 3 42","m":"c8b7 c7c1 d6d1 c1d1","r":516,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uuU74","f":"2k2r2/2p4p/p6b/2P3p1/3pN1P1/8/PPP1R1P1/1K5R w - - 0 25","m":"h1h6 f8f1 e2e1 f1e1","r":448,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uuhzW","f":"1r6/5p2/4b1kp/6p1/N2B4/b1P5/1P1R1PPP/6K1 w - - 0 30","m":"b2a3 b8b1 d2d1 b1d1","r":463,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uukRg","f":"4Nk2/pR3p1p/6p1/2r5/8/8/5PPP/6K1 w - - 4 30","m":"e8d6 c5c1","r":413,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uuqTR","f":"6k1/5ppp/p7/1p1R4/1Pr5/7P/P5P1/6K1 b - - 0 32","m":"c4b4 d5d8","r":498,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"uuy9t","f":"5rk1/rq3ppp/p3b3/4Pp2/2p2N2/P7/1PPQ2PP/2KRR3 b - - 4 23","m":"f8b8 d2d8 b8d8 d1d8","r":551,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"uv6S0","f":"5r1k/p1p3pp/8/8/1P5q/P4Qb1/4R2P/R6K b - - 0 32","m":"f8f3 e2e8 f3f8 e8f8","r":461,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uvJch","f":"Q4rk1/p1q2ppp/1p6/2p1R3/3p4/3P3P/PPP2PP1/4R1K1 b - - 0 21","m":"f8a8 e5e8 a8e8 e1e8","r":445,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"uvQEC","f":"7k/ppR4p/4P2p/1P1pr3/8/P7/5PPP/6K1 w - - 1 29","m":"c7b7 e5e1","r":578,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"uw1Gx","f":"2r3k1/ppQ2ppp/2p3r1/3p4/P2P4/2P4P/1P3PP1/R3R1K1 b - - 0 24","m":"c8c7 e1e8","r":514,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"uw20m","f":"r1b1r1k1/5ppp/8/1p6/4P3/3P2Q1/1q3PPP/1R4K1 w - - 0 27","m":"b1b2 a8a1 b2b1 a1b1","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uxNF0","f":"8/p2nR1Q1/1pkr3p/2p5/3P4/2P5/PP3PPP/6K1 w - - 1 28","m":"d4c5 d6d1 e7e1 d1e1","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uxQ3R","f":"4r1k1/p3Bppp/p3p3/8/8/2P3N1/qP1R1PPP/5RK1 b - - 3 20","m":"e8e7 d2d8 e7e8 d8e8","r":422,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uxe8j","f":"5rk1/3q2p1/p3p2Q/1p2rp2/3P4/6R1/PP4PP/3R3K w - - 0 26","m":"d1d3 e5e1","r":483,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uxoNX","f":"7k/6pp/2r2p2/1Rp5/P4K2/7P/5PP1/8 b - - 2 33","m":"c5c4 b5b8 c6c8 b8c8","r":454,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"uxrsv","f":"3r2k1/p4ppp/8/4P3/1p3P2/1P1p4/P5PP/2R3K1 b - - 1 29","m":"d8d4 c1c8 d4d8 c8d8","r":479,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"uy2Pn","f":"1r3Q1k/r1qb2pp/8/2P1P3/1P4n1/6P1/6BP/2B1RRK1 b - - 2 30","m":"b8f8 f1f8","r":561,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"uy6fF","f":"6k1/5pp1/2r3bp/R7/4p3/1p1rB3/1P3PPP/2R3K1 w - - 0 32","m":"c1c6 d3d1","r":576,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uy72E","f":"4n1k1/6pp/p3B3/1p2p3/r4R1q/2P5/PP4PP/4R2K b - - 2 27","m":"g8h8 f4f8","r":462,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"uyQZv","f":"1r1Br1k1/p4ppp/2p5/3p1B2/8/1P4n1/P1P2PPP/4RRK1 b - - 0 20","m":"g3f5 e1e8","r":405,"t":"backRankMate endgame hangingPiece master mate mateIn1 oneMove"},{"i":"uySD7","f":"2r3k1/5p1p/6p1/3r4/8/1P3P2/P5PP/3R3K w - - 0 31","m":"d1d5 c8c1 d5d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"uzTd1","f":"3r2k1/1pR2ppp/q7/1N1Q4/P3n3/8/1P3PPP/5RK1 b - - 0 26","m":"d8d5 c7c8 d5d8 c8d8","r":593,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uzZ3q","f":"3r2k1/ppR2pp1/b6p/8/1P6/P1N5/3r1PPP/2R3K1 w - - 1 26","m":"c3e4 d2d1 c1d1 d8d1","r":503,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uzcKq","f":"3r2k1/pQ3ppp/5b2/8/8/P3P3/1P1r1PPP/1q3RK1 w - - 0 23","m":"f1b1 d2d1 b1d1 d8d1","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"uzhTg","f":"8/6pk/1RPp1p1p/4p3/r2pP3/3P4/5PPP/6K1 w - - 0 34","m":"c6c7 a4a1 b6b1 a1b1","r":513,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"uzyo0","f":"3r1k2/p2r1pbp/1pn3p1/2pP4/5B2/8/PP3PPP/2RR2K1 w - - 0 22","m":"d5c6 d7d1 c1d1 d8d1","r":509,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v0mKa","f":"3r4/2p3pp/2p1b1k1/p7/5B2/NP6/Pb3PPP/1R4K1 w - - 2 22","m":"b1b2 d8d1","r":563,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"v0rAh","f":"r5k1/5pp1/1p5p/8/1P3P2/3Q4/6PP/4R2K w - - 0 33","m":"e1e7 a8a1 e7e1 a1e1 d3f1 e1f1","r":576,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"v0vRR","f":"2r3k1/1p3pp1/7p/p2bN3/8/8/5PPP/3R2K1 w - - 0 27","m":"d1d5 c8c1 d5d1 c1d1","r":405,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v184N","f":"3rb1k1/3r1pp1/p1p4p/8/4q3/1P3RQ1/P4PPP/4R1K1 w - - 0 28","m":"e1e4 d7d1 e4e1 d1e1","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v1OFn","f":"2r1r1k1/pp3ppp/n3b3/1n4P1/2PP1P2/4R1B1/5KBP/4R3 b - - 0 27","m":"e6c4 e3e8 c8e8 e1e8","r":427,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"v1OtI","f":"1r3k2/5ppp/8/Rp1p4/1Pr5/8/5PPP/3R2K1 w - - 1 28","m":"d1d5 c4c1 d5d1 c1d1","r":532,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"v1W8G","f":"k2N4/pp4pp/3r4/8/8/8/PP3PPP/4R1K1 w - - 1 36","m":"e1e8 d6d1 e8e1 d1e1","r":424,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v1clI","f":"3r2k1/5ppp/4n3/4P3/8/5N2/1qP2PPP/1R4K1 w - - 0 28","m":"b1b2 d8d1 f3e1 d1e1","r":484,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v1lNp","f":"7k/p5pp/1p1qpp2/2p2Q2/5P2/1P1P3P/P1P3PK/4R3 b - - 0 33","m":"e6f5 e1e8 d6f8 e8f8","r":567,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"v2bIh","f":"2R5/3rBpkp/p5p1/1pbr4/8/8/PP3PPP/2R3K1 w - - 8 24","m":"e7c5 d5d1 c1d1 d7d1","r":523,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v3FaN","f":"3r2k1/pp2r1pp/3p4/6B1/2p5/6Q1/PP3PPP/2q3K1 w - - 0 26","m":"g5c1 e7e1","r":589,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"v3f8Y","f":"6k1/1R4p1/p6p/8/1P1rp3/2n5/P1P3PP/5R1K w - - 1 31","m":"f1f7 d4d1 f7f1 d1f1","r":486,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v3gEV","f":"2kr3r/1pp2p1p/5p2/p3p3/1b6/1P5P/q3NPP1/Q4K1R w - - 0 20","m":"a1a2 d8d1","r":526,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"v3jKd","f":"3rr1k1/ppp2pp1/4b2p/8/5p1N/8/PPB2RPP/R1Bq3K w - - 0 19","m":"c2d1 d8d1 f2f1 d1f1","r":455,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"v3xdm","f":"1r4k1/q4pbp/4p1p1/3p4/8/5N2/Q4PPP/6K1 w - - 0 27","m":"a2a7 b8b1 f3e1 b1e1","r":476,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v41s8","f":"3r1k2/3r3p/1p1Npp2/4P1p1/1R6/5P2/PPP3PP/1K2R3 w - - 0 28","m":"d6e4 d7d1 e1d1 d8d1","r":498,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v48mv","f":"k1r2r2/1p2R1Q1/p6p/3p4/8/8/P5PP/4Rq1K w - - 2 32","m":"e1f1 f8f1","r":492,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"v4U0Y","f":"2kr4/ppp2ppp/8/8/P7/4RP2/1PP3PP/R2r3K w - - 1 21","m":"a1d1 d8d1 e3e1 d1e1","r":497,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"v5HH4","f":"3r2k1/1b3ppp/pB6/4Rp2/2P3P1/7P/1P2R2K/5r2 b - - 1 33","m":"d8d3 e5e8","r":466,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"v5dGA","f":"r5k1/5p1p/4pBp1/8/1R6/6R1/2P2PPP/q5K1 w - - 0 29","m":"f6a1 a8a1 b4b1 a1b1","r":592,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v5dsa","f":"8/1P3Rpk/p7/8/8/1r6/6PP/6K1 w - - 1 33","m":"g1h1 b3b1 f7f1 b1f1","r":569,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"v5fIr","f":"6k1/p4ppp/4p3/2rpP3/1R6/2P5/5PPP/6K1 b - - 0 34","m":"c5c3 b4b8 c3c8 b8c8","r":546,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"v6B5B","f":"r7/1pp2N1k/p5pp/5r2/8/1B6/PP4PP/4R2K w - - 0 29","m":"e1e7 f5f1","r":409,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"v6wPZ","f":"5rk1/6pp/8/2p5/2P1p3/4q3/P5PP/4R2K w - - 0 29","m":"e1e3 f8f1","r":509,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"v73VE","f":"2r3k1/1R3ppp/p7/2P5/8/4P3/5PPP/6K1 b - - 0 35","m":"c8c5 b7b8 c5c8 b8c8","r":506,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"v75aQ","f":"2r3k1/2q2ppp/p2r1b2/1p1Pp3/5P2/P3Q2P/1P4P1/3RRBK1 b - - 0 22","m":"e5f4 e3e8 c8e8 e1e8","r":596,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"v7ByA","f":"5kn1/p1r2pp1/1pB4p/1P6/8/6PP/5PK1/3R4 b - - 5 35","m":"g8e7 d1d8","r":481,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"v7fRb","f":"2r3k1/5ppp/8/pR6/2R5/6P1/2P3PK/8 b - - 0 32","m":"c8c4 b5b8 c4c8 b8c8","r":571,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"v7ofJ","f":"2kr2nr/pp5p/3BR3/8/8/2P1R3/PP4PP/7K w - - 3 23","m":"d6e5 d8d1 e3e1 d1e1","r":457,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v7pZd","f":"5rk1/pp3ppp/8/3r2q1/8/8/PP1nQPPP/3RR1K1 b - - 1 20","m":"f8d8 e2e8 d8e8 e1e8","r":467,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"v8Ngo","f":"3n1r1k/1p4p1/p2p2Pp/4p3/P7/1P2Q3/1BPP4/2K2q1R w - - 0 34","m":"h1f1 f8f1 e3e1 f1e1","r":579,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v8Qd3","f":"6k1/5ppp/rpp4q/4p3/4P2P/P1N2P2/1PP1K1P1/3R3R b - - 2 19","m":"b6b5 d1d8","r":420,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"v8TfB","f":"r3r2k/2p3p1/p3N2p/3R4/5q2/7Q/PPP5/1K2R3 w - - 2 28","m":"e6f4 e8e1 d5d1 e1d1","r":533,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"v8cWj","f":"1k1r4/1p6/3Np2R/p3P1p1/2P1q3/1P6/P5PP/7K w - - 0 31","m":"d6e4 d8d1","r":516,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"v8jqw","f":"r3r1k1/ppp1q1bp/1n1p2p1/3P1b2/4B3/5N2/PPQ2PPP/R1B1R1K1 w - - 3 16","m":"e4f5 e7e1 f3e1 e8e1","r":549,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"v93Mr","f":"Q4rk1/p4ppp/1p6/8/2P5/1P2R2P/1q4P1/4R1K1 b - - 0 27","m":"f8a8 e3e8 a8e8 e1e8","r":545,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"v9Bcv","f":"2k5/1pp3p1/p1r1p3/PP3p2/Q2Pp3/8/6PP/R1q4K w - - 2 26","m":"a1c1 c6c1 a4d1 c1d1","r":414,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"v9Cl7","f":"3r4/p3kppp/2p1p3/2n1P3/2N2P2/1P6/P5PP/5R1K w - - 2 26","m":"f1f2 d8d1 f2f1 d1f1","r":541,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v9HPn","f":"2Q5/pp3rp1/1k6/7p/1P6/PN2b3/6PP/2R2q1K w - - 3 30","m":"c1f1 f7f1","r":567,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"v9SEE","f":"6k1/p7/8/2pP4/1pr5/2B5/PP2RPPP/6K1 w - - 0 32","m":"c3e5 c4c1 e2e1 c1e1","r":546,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v9aBH","f":"1r5k/b1n3pp/p7/P7/1PB5/7P/3R1PP1/6K1 b - - 0 31","m":"b8b4 d2d8 c7e8 d8e8","r":401,"t":"backRankMate endgame mate mateIn2 short"},{"i":"v9uyJ","f":"4r1k1/b2b1ppp/ppp5/P2p2q1/1P1P4/2P2B2/3Q1PPP/RN4K1 w - - 0 20","m":"d2g5 e8e1","r":444,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"v9ysO","f":"r5k1/5ppp/3Bp3/1bP5/1q6/5P2/6PP/1R5K w - - 0 28","m":"b1b4 a8a1 b4b1 a1b1","r":590,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vAb41","f":"6k1/5ppp/Q1r1p2n/3pP3/3P2Pq/4P2P/P3N1K1/2R5 b - - 0 26","m":"c6a6 c1c8 h4d8 c8d8","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vAwml","f":"8/5ppk/8/6p1/8/1P1r4/P4nPP/5R1K w - - 0 34","m":"f1f2 d3d1 f2f1 d1f1","r":546,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vBGEW","f":"k1R1r3/pp3p1p/5p2/3rn3/PP1p1B2/3P1NP1/7P/2R3K1 b - - 2 26","m":"e8c8 c1c8","r":442,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vBHBB","f":"r3rQ1k/1b4pp/ppq5/2p1P3/P7/2NPn2P/1P3RPB/5RK1 b - - 2 24","m":"e8f8 f2f8 a8f8 f1f8","r":501,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vCdVc","f":"4r3/pppq1pkp/3n1Np1/4r1B1/8/5Q2/PP3PPP/3R2K1 w - - 4 21","m":"f6d7 e5e1 d1e1 e8e1","r":574,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vD2yL","f":"3r2k1/p4pp1/4p2p/1pR5/3rb3/P7/5PPP/1BR3K1 w - - 0 25","m":"b1e4 d4d1 c1d1 d8d1","r":497,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vDN2c","f":"3r1Q1k/1p4pp/p2P4/P1P1q3/6P1/5R1P/5PK1/8 b - - 2 42","m":"d8f8 f3f8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"vDTip","f":"2r2rk1/pRN2p1p/q6p/3p4/8/1Q6/5PPP/6K1 w - - 1 22","m":"c7a6 c8c1 b3d1 c1d1","r":431,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vDcCB","f":"2R2rk1/pq3ppp/4p3/8/8/1P4P1/P2Q1P1P/3R2K1 b - - 0 21","m":"f8c8 d2d8 c8d8 d1d8","r":545,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"vDieN","f":"5r2/2R1nqk1/1P1R2pp/4p1p1/2p5/6P1/6PP/1Q5K w - - 3 40","m":"d6d7 f7f1 b1f1 f8f1","r":528,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vED8I","f":"r3k3/pp4pp/2p5/3p1r2/8/N2N4/PPPPn1PP/R1B3K1 w q - 2 17","m":"g1h1 f5f1","r":542,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vEVEr","f":"r1b3k1/Qp3ppp/p3pn2/3p4/8/1P2P1P1/q4PBP/2R2RK1 b - - 1 21","m":"a8a7 c1c8 f6e8 c8e8","r":465,"t":"backRankMate hangingPiece mate mateIn2 middlegame short"},{"i":"vF60f","f":"r1b3k1/pp3ppp/4p3/q7/1nP5/2N1P3/5PPP/3QKB1R b K - 2 22","m":"b7b6 d1d8","r":536,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vFAvu","f":"r4rk1/ppp3pp/8/8/8/2N5/PPPP2PP/R1BQ1q1K w - - 2 16","m":"d1f1 f8f1","r":573,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vFcC6","f":"4r1k1/5p1p/2p3p1/P2p4/3Pr3/3q4/5PPP/R2R2K1 w - - 0 33","m":"d1d3 e4e1 a1e1 e8e1","r":540,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vFqJj","f":"1r5k/p1pp2pp/8/2p5/2N5/1Q6/PPP1qrRP/7K b - - 0 23","m":"f2g2 b3b8 e2e8 b8e8","r":577,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"vFwHr","f":"1r4k1/5ppp/R3p3/8/1R6/7P/5PP1/6K1 b - - 0 30","m":"b8b4 a6a8 b4b8 a8b8","r":514,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vHG55","f":"2r5/Q4nk1/3p4/3P2p1/6P1/7P/PP6/K1q2R2 w - - 2 35","m":"f1c1 c8c1","r":452,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vHKhv","f":"3rk2r/pp5p/2p1pb2/2P5/8/1B4Q1/P5PP/2Bq3K w k - 1 25","m":"b3d1 d8d1 g3e1 d1e1","r":544,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"vIKNU","f":"5rk1/ppp2rpp/8/8/2P1R3/8/P5PP/2RQ1q1K w - - 2 21","m":"d1f1 f7f1 c1f1 f8f1","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vIaGH","f":"1r4k1/5p1p/6p1/p1R5/P7/2r5/5PPP/6K1 w - - 0 33","m":"c5c3 b8b1 c3c1 b1c1","r":487,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vIk7f","f":"4r1k1/p4ppp/b7/P3N1P1/4p3/P6P/2P2b2/1RBK4 b - - 1 25","m":"e8e5 b1b8 a6c8 b8c8 e5e8 c8e8","r":513,"t":"backRankMate endgame long mate mateIn3"},{"i":"vIyow","f":"1r4k1/2p2p1p/6p1/p1B5/q1n1Q3/4P3/P4PPP/2Rr2K1 w - - 3 36","m":"c1d1 a4d1","r":579,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vJFOt","f":"6k1/pNp1rppp/2pr4/4p3/4Pn2/5P2/PPP2P1P/3R1R1K b - - 3 17","m":"d6h6 d1d8 e7e8 d8e8","r":506,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vJIBf","f":"7k/p5pp/1p3p2/5r2/8/P3r3/6PP/2R4K b - - 1 35","m":"f5f2 c1c8 e3e8 c8e8","r":550,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vJm3A","f":"r2qkb1r/ppp1n2p/6p1/4Q3/8/8/PPP2PPP/RNB3K1 w kq - 1 13","m":"e5h8 d8d1","r":472,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vJnyh","f":"r4rk1/4bppp/p2q4/1pp1p3/P7/5B2/1PP2PPP/R1BQ2K1 w - - 0 17","m":"f3a8 d6d1","r":525,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"vJrte","f":"r3r2k/p1p3pp/2pn4/8/5Q2/2P5/PBP1qPPP/R4RK1 w - - 0 18","m":"f1e1 e2e1 a1e1 e8e1","r":540,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vKF4r","f":"1R1r2k1/P4ppp/8/8/3p4/8/6P1/6K1 b - - 1 39","m":"d8b8 a7b8q","r":542,"t":"advancedPawn backRankMate endgame mate mateIn1 oneMove promotion"},{"i":"vKb5B","f":"r1bk1Q1r/1pqpn2p/p3p1p1/4P2N/8/3B4/PPP3PP/R4RK1 b - - 1 23","m":"h8f8 f1f8","r":520,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vKjnm","f":"3r2k1/5ppp/3Rp3/pR6/1np5/5B2/1P3PPP/6K1 b - - 0 29","m":"d8d6 b5b8 d6d8 b8d8","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vKx5f","f":"r5k1/1R3ppp/Pb6/4P3/5P2/6K1/b6P/8 b - - 2 32","m":"a8a6 b7b8 b6d8 b8d8","r":559,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vLHLa","f":"1rb1r1k1/p4ppp/1p6/8/2pR2n1/5NP1/PP2P1BP/R5K1 b - - 0 22","m":"e8e2 d4d8 e2e8 d8e8","r":419,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vLYbh","f":"5r2/p5k1/2p3pp/1p6/4P3/1QN1b3/PP4PP/3R1q1K w - - 2 27","m":"d1f1 f8f1","r":478,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vLjO2","f":"5bk1/p4ppp/8/3p4/R2P4/8/2PBrPPP/6K1 w - - 1 25","m":"d2e3 e2e1","r":417,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"vMJNl","f":"7k/2q2pp1/4p2p/p7/3PQ3/4P3/r4PPP/2R3K1 w - - 4 30","m":"c1c7 a2a1 e4b1 a1b1 c7c1 b1c1","r":526,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"vMMe8","f":"r1bqnQ1k/3pb1pp/p7/1pp1P3/4P3/P1NP4/1PP3PP/R1B2RK1 b - - 2 14","m":"e7f8 f1f8","r":435,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vMRyK","f":"1r4k1/5ppp/1n2b1q1/1p2P3/2pR4/P5P1/6BP/3Q2K1 b - - 4 39","m":"b6a4 d4d8 b8d8 d1d8","r":536,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vMfve","f":"r5k1/1pR2ppp/1p1p4/1P2n3/8/P3P1P1/3PKP1P/8 b - - 0 24","m":"a8a3 c7c8","r":428,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vMgT0","f":"4r1k1/6pp/p4n2/4r3/5Q2/8/5PPP/2Rq2K1 w - - 0 29","m":"c1d1 e5e1 d1e1 e8e1","r":594,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vMiDe","f":"8/4r1kp/6p1/5p2/3R4/8/6PP/2R4K w - - 0 40","m":"c1c6 e7e1","r":417,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"vN0No","f":"4k3/pp1n3Q/6p1/3pP1N1/2r2R2/8/PP4PP/7K w - - 1 28","m":"g5e6 c4c1 f4f1 c1f1","r":496,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vNHgs","f":"6k1/2p3p1/p2P3p/1p6/5r2/P7/1PP3PP/R4q1K w - - 1 25","m":"a1f1 f4f1","r":433,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"vNvXX","f":"5k2/7p/1pP1r1p1/p4p2/P1p5/8/5PPP/2R3K1 w - - 0 33","m":"c1c4 e6e1","r":401,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"vO9f0","f":"r1b1r1k1/bpp2ppp/p1p5/6B1/4N3/8/PPPRBPPP/5RK1 b - - 0 14","m":"e8e4 d2d8 e4e8 d8e8","r":497,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vOFFM","f":"3r2k1/5ppp/p1R5/1p6/8/PP5P/5PP1/6K1 b - - 1 28","m":"d8d3 c6c8 d3d8 c8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vPJyo","f":"4Q2k/5rpp/p1p2n2/8/8/8/P2q1PPP/4R1K1 b - - 1 29","m":"f6e8 e1e8 f7f8 e8f8","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vPiT5","f":"4Q2k/p1q3pp/1p2Qn2/1P1p4/3b4/B7/P5PP/5B1K b - - 0 29","m":"f6e8 e6e8","r":589,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vQZ3T","f":"1k1r4/pp5p/2p2Qp1/5p2/2N2b2/2P5/PP3P2/K2q3R w - - 5 28","m":"h1d1 d8d1","r":511,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vQr9G","f":"8/6Rp/4R1pn/3r1pk1/8/8/P4PPP/6K1 w - - 0 27","m":"g7h7 d5d1 e6e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vR94U","f":"r4Q1k/6pp/4p3/3pP3/p1pN4/2q5/P5PP/5RK1 b - - 3 25","m":"a8f8 f1f8","r":535,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vRMkx","f":"r4r1k/6pp/p7/1p1QP3/2p5/P1P5/BP4PP/1R3q1K w - - 1 28","m":"b1f1 f8f1","r":416,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vRX0P","f":"7k/3r2p1/1p5p/p7/Q3q3/8/5PPP/6K1 w - - 0 30","m":"a4e4 d7d1 e4e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"vRXcK","f":"5rk1/p4qp1/7p/1p1p4/2pPp3/2P1B1Q1/PP4PP/4R2K w - - 0 29","m":"e3h6 f7f1 e1f1 f8f1","r":510,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"vRddU","f":"4r3/2p2p1k/1p4pp/p7/3B4/P7/1P1Q1PPP/4q1K1 w - - 1 36","m":"d2e1 e8e1","r":570,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vRk5s","f":"2rR2k1/1p3ppp/1p6/2r5/5PP1/P6P/1PPR4/2K5 b - - 2 29","m":"c8d8 d2d8","r":426,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"vRnJR","f":"4r1k1/5ppp/p2B1b2/1pp5/6Q1/1P1Pr3/6PP/2q2R1K w - - 0 31","m":"f1c1 e3e1 c1e1 e8e1","r":414,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vRqvE","f":"3r2k1/5pp1/p6p/1p2P1b1/1P2b3/P7/1B3PPP/4R1K1 w - - 0 27","m":"e1e4 d8d1 e4e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vRzuf","f":"2r3k1/1p3p1p/p2P2p1/5b2/8/1P6/P4PPP/Q1r3K1 w - - 1 29","m":"a1c1 c8c1","r":554,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"vS0um","f":"3q4/6pk/p4p1p/4P3/5B2/5P2/1r4PP/3R3K w - - 0 34","m":"d1d8 b2b1 f4c1 b1c1 d8d1 c1d1","r":499,"t":"backRankMate endgame long mate mateIn3"},{"i":"vSwTb","f":"2R2bk1/5r2/p7/1p6/8/1Q3P2/P1P2qPP/3Rr2K w - - 23 46","m":"d1e1 f2e1","r":547,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vTcmq","f":"r5k1/p2R1ppp/1p2n1b1/2p5/8/2P3B1/PP1R3K/8 b - - 5 27","m":"e6g5 d7d8 a8d8 d2d8","r":535,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vTtCN","f":"2Q4r/4rkpp/5p2/p2p1p2/8/2P5/PP3PPP/6K1 w - - 2 30","m":"c8f5 e7e1","r":447,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"vTxeZ","f":"4rrk1/3bq1pp/2p5/pp1p1p2/3P1P1P/P2Q3R/1PP3P1/1NK2R2 w - - 1 19","m":"b1d2 e7e1 f1e1 e8e1","r":527,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"vUemA","f":"4b3/p4k2/1p1RR1n1/3p2p1/PP3p2/2r4P/1N3PPB/6K1 w - - 0 31","m":"e6g6 c3c1 b2d1 c1d1","r":548,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vVNQZ","f":"2r3k1/p1r2ppp/R7/4P2n/3N4/4P3/5PPP/5RK1 w - - 2 28","m":"f1a1 c7c1 a1c1 c8c1","r":448,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vX2TX","f":"6k1/p4ppp/4b1r1/8/PP1bP3/1B1P1PP1/3K3P/2R5 b - - 4 36","m":"e6b3 c1c8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vXSTf","f":"3r1Q1k/1pp3pp/p7/8/8/4r3/PbP3PP/5RK1 b - - 3 25","m":"d8f8 f1f8","r":560,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vXTQo","f":"r3r1k1/pp3p1p/4qBp1/3N1p2/7Q/8/PPP2PPP/R5K1 w - - 1 18","m":"d5c7 e6e1 a1e1 e8e1","r":583,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"vXU7O","f":"5rk1/pp2p1b1/4pr1p/8/4PB2/8/PP4PP/R4R1K w - - 1 23","m":"f4g3 f6f1 a1f1 f8f1","r":522,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vYJMq","f":"5r1k/p5pp/2p3b1/1pn1R3/4P3/P2P3P/BPP5/1K3rR1 w - - 1 29","m":"g1f1 f8f1","r":460,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vYP3B","f":"3R4/5ppk/8/8/p7/P3P3/r2N1PPP/6K1 w - - 3 37","m":"d2c4 a2a1 d8d1 a1d1","r":540,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vYUPm","f":"6k1/p4ppp/8/1p1r4/q2p1b2/7P/4R2P/1K1R4 b - - 3 36","m":"d5c5 e2e8","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vYgWb","f":"2rR2k1/p3Qppp/1p6/8/1P6/P3P3/1q3PPP/6K1 b - - 1 30","m":"c8d8 e7d8","r":523,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vYrpF","f":"4r1k1/1Q3pp1/7p/p1p5/P1P5/1P3PN1/6PP/3Rq2K w - - 3 28","m":"d1e1 e8e1 g3f1 e1f1","r":511,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vYzVz","f":"1k2Qb1r/ppp5/1qb4p/6p1/nP6/P1NR4/2P2P2/R1B1K3 b Q - 2 30","m":"c6e8 d3d8","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vYzub","f":"1r4k1/5ppp/4p3/R7/8/PP5P/5PP1/6K1 b - - 0 29","m":"b8b3 a5a8 b3b8 a8b8","r":514,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vaF5Y","f":"R3Q3/2pr1rpk/1pp4p/8/8/2P5/2P3PP/4Rq1K w - - 2 25","m":"e1f1 f7f1","r":557,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"vaLTw","f":"2k1r1nr/pp4pp/2p5/2QNqb2/8/5B2/PPP2PPP/2R2RK1 w - - 0 18","m":"f1e1 e5e1 c1e1 e8e1","r":584,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vax0H","f":"4r1k1/1p5p/p2p2pB/3P1p2/2P5/1P3R2/P4qPP/7K w - - 0 28","m":"f3f2 e8e1 f2f1 e1f1","r":488,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vb0CJ","f":"3rQ1k1/5ppp/8/2p2PP1/1p1r4/qP5P/P1P5/RK2R3 b - - 8 32","m":"d8e8 e1e8","r":404,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"vb2eq","f":"4r1k1/p6p/1p2N3/6p1/1PP2p2/3P1R2/P5PP/b6K w - - 2 28","m":"e6g5 e8e1 f3f1 e1f1","r":472,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vbC7w","f":"rnbq1Q1k/ppp3pp/5R2/8/4r2N/8/PPPP3p/RNB4K b - - 3 14","m":"d8f8 f6f8","r":551,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vbG5f","f":"6Qk/5ppp/8/4R3/N7/5qP1/PP3P2/K1b5 b - - 0 37","m":"h8g8 e5e8","r":416,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vbGxE","f":"3r3k/p5pp/3R1p2/2p5/2P2P2/1P3QP1/P1q4r/2B2RK1 b - - 0 27","m":"d8d6 f3a8 d6d8 a8d8","r":552,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vbSja","f":"6k1/1b3ppp/p3p3/8/8/3qb3/P1RBR3/3K4 b - - 1 37","m":"b7f3 c2c8 d3d8 c8d8","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vbayr","f":"4r3/ppp3pp/1b3nk1/8/3n4/2N2N2/PP3PPP/R1B3K1 w - - 2 19","m":"f3d4 e8e1","r":574,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vbj0S","f":"4r3/pppk3p/n2pbr2/3N4/R3P2Q/1P6/6PP/2R2q1K w - - 2 26","m":"c1f1 f6f1","r":513,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vbwvH","f":"r3r1k1/2p2ppp/2p1b3/p1NnR3/P7/1P6/2P2PPP/R4BK1 b - - 4 20","m":"e6c8 e5e8","r":567,"t":"backRankMate hangingPiece master mate mateIn1 middlegame oneMove"},{"i":"vcXv8","f":"3r1Q1k/6pp/3P4/2p5/3b1R2/3qp1P1/6NK/8 b - - 1 36","m":"d8f8 f4f8","r":497,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vcpLH","f":"6k1/1b3ppp/2p5/1pP5/3RP3/6P1/r1B2P1P/6K1 b - - 0 25","m":"a2c2 d4d8","r":439,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vd5QZ","f":"6k1/1R3ppp/1p2p3/p7/N2P1n2/P4PK1/2r3PP/8 b - - 1 35","m":"f4g2 b7b8 c2c8 b8c8","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vdE7W","f":"3r1rk1/pp4pp/8/8/2P5/1Q1p4/PP1B2PP/R4q1K w - - 2 23","m":"a1f1 f8f1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vdqF5","f":"4rQ1k/6pp/1p6/pP2P3/P2q4/8/7P/5R1K b - - 2 46","m":"e8f8 f1f8","r":557,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"ve4WB","f":"1k1r3r/ppp2ppp/8/3np3/1B6/q1N2P1B/2PQ1P1P/1K1R3R b - - 0 16","m":"d5b4 d2d8 h8d8 d1d8","r":449,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"veXDg","f":"6k1/p4ppp/5q2/1P1p4/8/1N2rb2/P2n1K1P/2R4R b - - 9 28","m":"d2b3 c1c8 f6d8 c8d8 e3e8 d8e8","r":404,"t":"backRankMate endgame long mate mateIn3"},{"i":"vej0L","f":"3r2k1/p4ppp/1p1Qp3/8/8/8/P4PPP/2R3K1 b - - 0 28","m":"d8d6 c1c8 d6d8 c8d8","r":541,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"velya","f":"1q4k1/5ppp/p3r3/1p1R4/1P1pP3/P1pP2QP/2P3P1/6K1 b - - 3 33","m":"b8g3 d5d8 e6e8 d8e8","r":407,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"vf26E","f":"3r2k1/5ppp/8/3q4/4n3/Q2P4/5PPP/R5K1 w - - 0 33","m":"d3e4 d5d1 a1d1 d8d1","r":581,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"vf7RK","f":"4r1k1/p3Qppp/8/2p5/1pb1PP2/8/PPP3PP/1K1R4 b - - 0 20","m":"e8e7 d1d8 e7e8 d8e8","r":518,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vfOgN","f":"1k6/ppp5/8/5p2/1P2rnn1/P5Q1/2PK3R/8 b - - 0 32","m":"g4h2 g3g8 e4e8 g8e8","r":501,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vfnqH","f":"2bQRnk1/3r1pp1/p7/1pp5/8/8/P1P2PPP/6K1 w - - 4 24","m":"d8c8 d7d1 e8e1 d1e1","r":470,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vg4Fn","f":"2Q3k1/4rppp/r2p4/4pb2/1P2n3/8/P4PPP/2RR2K1 b - - 0 30","m":"f5c8 c1c8 e7e8 c8e8","r":590,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vgANb","f":"2br2k1/2Q2ppp/8/8/4P3/1P3P2/P2r2PP/q4R1K w - - 0 26","m":"f1a1 d2d1 a1d1 d8d1","r":463,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vgLo2","f":"7k/6pp/p7/3p1Q2/5q2/7P/P5P1/4R2K b - - 0 35","m":"f4f5 e1e8 f5f8 e8f8","r":547,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"vgNk7","f":"rnbr2k1/pp3ppp/1qp2b2/8/8/1NPQ1B2/PBP2PPP/1R2R1K1 b - - 12 16","m":"d8d3 e1e8","r":472,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vgYNc","f":"1rr3k1/p2p1ppp/1p2p3/3n4/3N4/1P3K2/P1R2PPP/2R5 b - - 5 23","m":"d5b4 c2c8 b8c8 c1c8","r":466,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vggMr","f":"r3r2k/5p2/5p1p/8/5P2/p2B2R1/PRP3PP/7K w - - 2 32","m":"b2b3 e8e1 d3f1 e1f1","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vgx2I","f":"1k2r3/ppp2p2/8/1P4B1/8/3p4/P4PPP/2R1q2K w - - 1 33","m":"c1e1 e8e1","r":415,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vhVhz","f":"r1b3k1/ppp2ppp/3b2q1/4R3/8/2N4P/PPP2PP1/R1BQ1K2 b - - 0 14","m":"d6e5 d1d8","r":490,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vheuO","f":"1R3r1k/p5pp/4Q1p1/6q1/3p4/8/PP3PPP/4R1K1 b - - 0 28","m":"f8b8 e6e8 b8e8 e1e8","r":597,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"viBJI","f":"2r2rk1/1R3pp1/4p2p/8/8/4P3/P3nPPP/4R1K1 w - - 0 27","m":"e1e2 c8c1 e2e1 c1e1","r":474,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"viqRv","f":"r1b1rQ1k/ppp3pp/8/8/1P1P4/P6P/4q1P1/1RB2RK1 b - - 2 21","m":"e8f8 f1f8","r":588,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vj0I2","f":"r2Q1k1r/pp2npbp/6p1/8/8/PPq5/2P2PPP/1K1R2NR b - - 10 21","m":"a8d8 d1d8","r":440,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vj6A6","f":"r1b2rk1/b7/p1p3np/1p2P2Q/8/2P5/P1B3PP/R1B1Rq1K w - - 2 21","m":"e1f1 f8f1","r":437,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vj7Do","f":"4r1k1/1p4pp/3N4/p2P4/5p2/1P2r3/PB4PP/1qQ4K w - - 0 31","m":"c1b1 e3e1 b1e1 e8e1","r":581,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"vjXRB","f":"2r3k1/pR4p1/4pp2/P5p1/3P4/8/5PPP/2rR2K1 w - - 2 29","m":"d1c1 c8c1","r":447,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"vjc2H","f":"r7/1p2Rp1k/2pn1p1p/2Pp4/3P4/1p4R1/P4PPP/6K1 w - - 0 26","m":"a2b3 a8a1 e7e1 a1e1","r":451,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vkf4x","f":"2r2k2/pp2ppbp/6p1/4P3/2B2P2/P3PK2/1Pn4P/3R3R b - - 2 18","m":"c8c4 d1d8","r":581,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vl0Q0","f":"1r6/6pk/p5Rp/2p1p3/2B2p2/P4P2/3R2PP/7K w - - 1 33","m":"g6a6 b8b1 d2d1 b1d1 c4f1 d1f1","r":501,"t":"backRankMate endgame long mate mateIn3"},{"i":"vlEop","f":"r3r1k1/ppp1qp1n/3p3p/3PP1p1/8/2P2QB1/P4PPP/R3R1K1 w - - 1 19","m":"e5d6 e7e1 a1e1 e8e1","r":572,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vlQTH","f":"r5k1/2q2ppp/1p6/2p5/1P1P2P1/2P1Q3/5PP1/4R1K1 b - - 1 34","m":"c5d4 e3e8 a8e8 e1e8","r":491,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"vle9e","f":"8/5Rpk/5p2/1r4p1/8/8/1r3PPP/2R3K1 w - - 0 37","m":"c1c7 b2b1 c7c1 b1c1","r":503,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vll2o","f":"4r1k1/p4ppp/8/6P1/P2R4/8/2b3B1/6K1 b - - 0 34","m":"e8e5 d4d8 e5e8 d8e8","r":473,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vm1TE","f":"2r3k1/pbq2pp1/1p5p/PR1ppN2/8/8/1Q3PPP/1Rr3K1 w - - 4 29","m":"b1c1 c7c1 b2c1 c8c1","r":532,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vmQyS","f":"8/R5b1/6pk/2p2p1p/2P5/1P6/P2r2PP/4R2K w - - 1 38","m":"e1e7 d2d1 e7e1 d1e1","r":410,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vnIGd","f":"3rr1k1/p1p1qppp/1p1p1n2/3b4/3QP3/P4B2/1PP2PPP/3RR1K1 w - - 0 16","m":"e4d5 e7e1 d1e1 e8e1","r":518,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vnkDs","f":"1r4k1/Q4pp1/3q3p/4p3/8/2p5/5PPP/3R2K1 w - - 0 35","m":"d1d6 b8b1 d6d1 b1d1","r":416,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"vnmrB","f":"Q4r1k/6pp/p3Rb2/1p3q2/3P1p2/1B6/1P3PPP/4R1K1 b - - 0 27","m":"f8a8 e6e8 a8e8 e1e8","r":496,"t":"backRankMate endgame mate mateIn2 short"},{"i":"voXjC","f":"r4rk1/p5pp/8/1P4R1/8/1P6/P2P2PP/1N1Q1q1K w - - 2 22","m":"d1f1 f8f1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"voYgc","f":"2r3k1/5ppp/4p3/p2p4/P7/2Q5/2P2PPP/1R4K1 b - - 0 23","m":"c8c3 b1b8 c3c8 b8c8","r":496,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vouY8","f":"1rb1rnk1/p1p2ppp/8/2bB1qBQ/8/2P5/PP4PP/RN3R1K w - - 0 19","m":"f1f5 e8e1 f5f1 e1f1","r":550,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vpfUA","f":"4r3/pp3kb1/2p2p2/8/3P2pN/P1P5/1P2rPPB/1RR3K1 w - - 6 31","m":"c1e1 e2e1 b1e1 e8e1","r":421,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vpno1","f":"8/5p2/1R2pk1p/p5p1/3r4/P7/1P3PPP/6K1 w - - 0 34","m":"b6a6 d4d1","r":547,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"vptGd","f":"1k1r3Q/ppp5/8/7p/8/3PR2P/q4PP1/4R1K1 b - - 0 22","m":"d8h8 e3e8 h8e8 e1e8","r":467,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"vq5bz","f":"r2Q1k1r/2p1npp1/p1p4p/4P3/7q/2N5/PPP2PPP/R2R2K1 b - - 6 18","m":"a8d8 d1d8","r":468,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vqDcR","f":"r5k1/p3Rnpp/1p3p2/2pr4/5P2/6B1/PP4PP/4R1K1 b - - 3 24","m":"a7a5 e7e8 a8e8 e1e8","r":575,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vqx4C","f":"7k/R6p/1p3p2/1Pp1p3/Pr6/8/1B4PP/7K w - - 1 30","m":"b2a3 b4b1 a3c1 b1c1","r":545,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vrLtS","f":"4r3/p1k1rp1p/1p3p1b/3p4/2NPP3/2P5/P4PPP/1R2R1K1 w - - 0 23","m":"e4d5 e7e1 b1e1 e8e1","r":444,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vrSfY","f":"5r1k/1p4pp/p7/8/PP2P3/3RNQ1P/4r1PK/8 b - - 0 31","m":"f8f3 d3d8 f3f8 d8f8","r":481,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vrd1J","f":"2r1k2r/5pp1/Q3p2p/1p1n3P/8/3R1NP1/PP3P2/K1q4R w k - 2 28","m":"h1c1 c8c1","r":491,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vrqeY","f":"6k1/5ppp/p7/1p2r3/8/1Pb1P1P1/P4K1P/3R4 b - - 3 35","m":"b5b4 d1d8 e5e8 d8e8","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vrzMD","f":"4r1k1/1pp2ppp/p2p4/5bb1/8/1PN5/1PPP1PPP/R1B3K1 w - - 0 17","m":"d2d3 e8e1","r":508,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vsTst","f":"6k1/5p2/1p4p1/8/1P6/2r5/3R2PP/7K w - - 0 41","m":"d2d6 c3c1 d6d1 c1d1","r":591,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vt7Wh","f":"3k2n1/pRR5/2B5/2bpr2p/8/P7/1P4PP/7K w - - 4 38","m":"c7g7 e5e1","r":445,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vuTSf","f":"4k2r/2Rpppbp/qp3np1/8/QPPP1B2/4P3/1P2KP1P/1N4N1 b k - 2 14","m":"a6a4 c7c8","r":526,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vuUN7","f":"4r1k1/p4pp1/5B1p/8/8/1P6/P1Q2PPP/2R1q1K1 w - - 1 29","m":"c1e1 e8e1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vuXP0","f":"3r2k1/p3n1p1/1p2pp1p/2p5/4q3/2P3Q1/PP3PPP/4R1K1 w - - 0 25","m":"e1e4 d8d1 e4e1 d1e1","r":413,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vuifv","f":"5rk1/p4p2/6p1/1Rb5/5B1Q/P7/4q1PP/1R1r3K w - - 2 34","m":"b1d1 e2d1 h4e1 d1e1","r":542,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vvBOq","f":"6k1/5pPp/p3r3/1p6/3p1q2/P7/1PPQ2PP/7K w - - 0 28","m":"d2f4 e6e1 f4f1 e1f1","r":419,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"vvYbe","f":"1r4k1/5pp1/7p/8/3q4/8/5PPP/3R2K1 w - - 0 28","m":"d1d4 b8b1 d4d1 b1d1","r":494,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vwCLI","f":"4r1k1/pp3p1p/2b3pB/3pr3/8/P6R/1P1Q1PPP/2q3K1 w - - 0 24","m":"d2c1 e5e1 c1e1 e8e1","r":564,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"vwHwi","f":"6k1/5ppp/8/8/4K3/2r5/R1pr2PP/2R5 b - - 7 35","m":"d2g2 a2a8 c3c8 a8c8","r":541,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"vwOhz","f":"4r1k1/p3qpbp/2p2pp1/1p1n4/3P4/1BP3Q1/PP3PPP/2BR2K1 w - - 2 22","m":"g3f3 e7e1 d1e1 e8e1","r":496,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"vwTkG","f":"r4Q1k/pppb2pp/2n1p3/6q1/2BP4/2P5/P5PP/R4RK1 b - - 5 18","m":"a8f8 f1f8","r":454,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vwUMb","f":"6k1/5ppp/p2R4/1p6/2b5/P4NK1/4r1PP/8 b - - 5 36","m":"a6a5 d6d8 e2e8 d8e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"vwmlW","f":"4r1k1/pQ3pp1/7p/8/8/8/PP3PPP/3Rr1K1 w - - 1 22","m":"d1e1 e8e1","r":503,"t":"backRankMate endgame master mate mateIn1 oneMove queenRookEndgame"},{"i":"vwouT","f":"7k/p3R1pp/1b6/3Q4/8/6P1/P4PKP/3r4 b - - 0 28","m":"d1d5 e7e8","r":451,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"vxLP3","f":"4r1k1/pp3ppp/2p2n2/1q1pn3/5P2/1P1P2P1/P3Q1BP/4RNK1 b - - 0 20","m":"e5d3 e2e8 f6e8 e1e8","r":400,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"vxOMo","f":"1r4k1/pr3ppp/5b2/2q5/3p4/P4N2/1P2Q1PP/1R2R2K b - - 1 32","m":"c5b6 e2e8 b8e8 e1e8","r":513,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"vyTtN","f":"r5k1/2K2ppp/8/8/N2P1P2/2P2nP1/1R5P/8 b - - 0 33","m":"a8a4 b2b8","r":544,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"vyaGl","f":"1rr1Q1k1/5ppp/8/3p3q/3P4/6P1/PP2RPbP/4R1K1 b - - 1 27","m":"c8e8 e2e8 b8e8 e1e8","r":515,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"vyiXG","f":"3rQ1k1/pp3ppp/8/2pp1q2/8/6nP/PPPN3P/R3RBK1 b - - 0 20","m":"d8e8 e1e8","r":446,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"vzfCb","f":"4r1k1/1p4pp/pNp2p2/P1Pp1b2/1n6/5P2/5NPP/1R5K w - - 0 29","m":"b1b4 e8e1","r":437,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"w0Cqo","f":"4B1k1/p4pp1/1p6/8/2bP4/q1P1Q3/1R3PPP/6K1 w - - 3 26","m":"e3d2 a3a1 b2b1 a1b1 d2c1 b1c1","r":505,"t":"backRankMate endgame long mate mateIn3"},{"i":"w0JQ2","f":"5Nk1/pppq1pp1/2n5/2bp4/5R2/2P5/PPP1r1PP/R1B4K w - - 0 15","m":"f8d7 e2e1 f4f1 e1f1","r":477,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"w0bYV","f":"r5k1/p1R2p1p/6p1/r1p5/8/2P1P3/5PPP/3R2K1 w - - 2 23","m":"d1d7 a5a1 d7d1 a1d1","r":512,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"w0uA6","f":"5rk1/8/2p1Rp2/2P3p1/3P3p/5N1P/r4PPB/6K1 w - - 0 30","m":"e6c6 a2a1 f3e1 a1e1","r":516,"t":"backRankMate endgame mate mateIn2 short"},{"i":"w0zUh","f":"5rk1/p2p1ppp/4p3/P1RnP3/1r1P4/5N2/5PPP/2R3K1 b - - 0 24","m":"f8b8 c5c8 b8c8 c1c8","r":550,"t":"backRankMate endgame mate mateIn2 short"},{"i":"w1NeV","f":"3rk3/p2q3p/8/2pB4/4pB2/P3P3/Q4PPP/6K1 w - - 1 32","m":"d5b3 d7d1 b3d1 d8d1","r":508,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"w1OcC","f":"1k2r3/ppp2q2/2n3p1/8/6N1/3P4/PPP3PP/5R1K w - - 0 24","m":"f1f7 e8e1 f7f1 e1f1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"w1hax","f":"5r1k/6pp/1p6/2p5/3p4/3P1Q2/7P/R5K1 b - - 0 28","m":"f8f3 a1a8 f3f8 a8f8","r":497,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"w1mYr","f":"4r1k1/ppp2bpp/2p5/5n2/3P4/4B3/PPP2PPP/RN4K1 w - - 2 15","m":"e3f4 e8e1","r":542,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"w1qq4","f":"4r3/5p1k/p1p3p1/5bqp/2P1r3/1P2B3/P4PPP/2R1R1K1 w - - 0 40","m":"e3g5 e4e1 c1e1 e8e1","r":565,"t":"backRankMate endgame mate mateIn2 short"},{"i":"w1zVq","f":"4r1k1/5p2/p5pp/1p1pr3/2PR4/1P6/P5PP/3R3K w - - 1 26","m":"c4d5 e5e1 d1e1 e8e1","r":461,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"w2NjN","f":"4rQ1k/1p4pp/p1b4q/2P5/3p4/8/PP4PP/3R1R1K b - - 5 31","m":"e8f8 f1f8","r":408,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"w2QRG","f":"3r2k1/7p/1P1r2p1/P3pp2/8/1R6/5PPP/R5K1 w - - 1 28","m":"b6b7 d6d1 a1d1 d8d1","r":557,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"w2UnF","f":"4r1k1/pp4pp/8/2p2p2/3p4/2PQ4/PPB3PP/R3r2K w - - 0 25","m":"a1e1 e8e1 d3f1 e1f1","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"w36YH","f":"3r3k/p2r2p1/8/7p/8/1P6/P1R2PPP/5RK1 w - - 0 23","m":"f1c1 d7d1 c1d1 d8d1","r":553,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"w3WiU","f":"3r1rk1/ppp2ppp/2n5/5q2/4R3/2P2Q2/PP3PPP/RNB3K1 w - - 1 15","m":"f3f5 d8d1 e4e1 d1e1","r":558,"t":"backRankMate fork mate mateIn2 middlegame short"},{"i":"w3mOn","f":"2r1r1k1/1p3ppp/pq6/n2p1p2/3PnB2/2PB1PP1/PP2Q1P1/R3R1K1 b - - 0 18","m":"e4c3 e2e8 c8e8 e1e8","r":507,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"w4y7F","f":"r3r2k/3qpQnp/pp4p1/2P5/4bR2/1P1pP2P/P5P1/R5K1 b - - 1 22","m":"e8f8 f7f8 a8f8 f4f8","r":542,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"w5LOb","f":"5r2/p1B1q3/kpp5/7p/8/8/P1P3PP/4R2K w - - 0 37","m":"e1e7 f8f1","r":401,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"w5Tl9","f":"3rr1k1/p4pp1/4q2p/3p4/8/1P1R2Q1/P1P2PPP/3R2K1 w - - 2 22","m":"g3c7 e6e1 d1e1 e8e1","r":520,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"w5dLq","f":"3r4/pp3nk1/4R2p/8/8/8/P2N1PPP/6K1 w - - 1 26","m":"d2e4 d8d1","r":424,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"w5lNq","f":"6k1/N4ppp/p7/P2n4/4r3/7P/2R2PPK/8 b - - 2 35","m":"d5b4 c2c8 e4e8 c8e8","r":481,"t":"backRankMate endgame mate mateIn2 short"},{"i":"w5pM7","f":"3rr1k1/1p3ppp/pN3b2/8/3p2Q1/3R4/PP4PP/3Rq2K w - - 6 30","m":"d1e1 e8e1","r":414,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"w6HtR","f":"1k6/1p2b1p1/1Bp2p2/3r4/6P1/5P1r/PPP2R2/1K1R4 w - - 0 29","m":"d1d5 h3h1 f2f1 h1f1 d5d1 f1d1","r":596,"t":"backRankMate endgame long mate mateIn3"},{"i":"w6RFJ","f":"rr4k1/p4ppp/4p1b1/1Q3n2/8/2R5/P4PPP/2R3K1 b - - 0 25","m":"b8b5 c3c8 a8c8 c1c8","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"w6zsa","f":"2r5/1Q3p2/2r1Bk2/8/5n1p/4R2P/PP6/K1q1R3 w - - 3 39","m":"e1c1 c6c1","r":477,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"w7Y03","f":"2rQ2k1/pq3ppp/4p3/8/1pP5/1P4P1/P4P1P/3RR1K1 b - - 0 24","m":"c8d8 d1d8","r":430,"t":"backRankMate endgame master mate mateIn1 oneMove queenRookEndgame"},{"i":"w8zL7","f":"6k1/5pp1/7p/1p1p1P2/4r3/8/PP3qPP/5R1K w - - 0 29","m":"f1f2 e4e1 f2f1 e1f1","r":552,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"w9CVs","f":"5rk1/5ppp/8/p7/7P/P3RKP1/2r5/4R3 b - - 2 35","m":"f8c8 e3e8 c8e8 e1e8","r":504,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"w9KXw","f":"6k1/prp1Bppp/8/5p1n/3P4/2P5/P1P2PPP/4R1K1 w - - 0 22","m":"e1e5 b7b1 e5e1 b1e1","r":495,"t":"backRankMate endgame mate mateIn2 short"},{"i":"w9ecS","f":"3R1r1k/1p4pp/n7/3Q4/7P/P4pP1/6r1/5K2 b - - 5 38","m":"f8d8 d5d8","r":455,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"w9hgW","f":"3r3k/ppn3bp/6p1/2p2q2/8/P4N2/1PQ2PPP/1RB3K1 w - - 3 25","m":"c2f5 d8d1 f3e1 d1e1","r":494,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wA4RW","f":"4r1k1/2p2pbp/1p3np1/pNn5/2P5/BP3B2/P1Q3PP/3Rq2K w - - 1 23","m":"d1e1 e8e1","r":411,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"wAF7D","f":"6k1/1p3ppp/1q2p3/p2PP3/Pn6/1P3N2/5PPP/2Q3K1 b - - 0 23","m":"b4d5 c1c8 b6d8 c8d8","r":528,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wAIIu","f":"3r2k1/5ppp/2B1pn2/6B1/3r4/2b5/PPP2PPP/R5K1 w - - 0 19","m":"b2c3 d4d1 a1d1 d8d1","r":441,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wAMTV","f":"5rk1/1R3p1p/p1rp2p1/8/3b4/7P/P4PPB/3R2K1 w - - 0 23","m":"d1d4 c6c1 d4d1 c1d1","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wAZQU","f":"5r2/pp4k1/5rpp/3N4/3b4/8/PPP3PP/R4RK1 w - - 0 24","m":"g1h1 f6f1 a1f1 f8f1","r":585,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wAvqg","f":"3rQ2k/pp4pp/2n5/3N4/3q2b1/6P1/PP4rP/R3RN1K b - - 1 24","m":"d8e8 e1e8","r":582,"t":"backRankMate master masterVsMaster mate mateIn1 middlegame oneMove"},{"i":"wBJSH","f":"4r2k/4Q1pp/pp3p2/7P/8/6P1/5P2/3R2K1 b - - 0 32","m":"e8e7 d1d8 e7e8 d8e8","r":465,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"wBQGe","f":"2r3k1/2r2p1p/p3p1p1/3n4/3q4/2P5/PQ3PPP/2R3K1 w - - 0 27","m":"c3d4 c7c1 b2c1 c8c1","r":437,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wBQr4","f":"2r5/4kp1p/8/r2p4/4pP2/8/5PPP/R5K1 w - - 0 29","m":"a1a5 c8c1","r":400,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"wBxju","f":"3r2k1/ppp2p1p/2p3p1/4Pb2/5B2/2q2P2/P4RPP/2R4K w - - 0 20","m":"c1c3 d8d1 f2f1 d1f1","r":440,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wC2Gz","f":"2r3k1/5ppp/1p6/pP1R4/P1r5/4P1P1/5PKP/3R4 b - - 0 32","m":"c4a4 d5d8 c8d8 d1d8","r":500,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"wCPEE","f":"1rR3k1/5ppp/1q2p3/p2pP3/P4n2/1P3N2/5PPP/2R3K1 b - - 1 27","m":"b8c8 c1c8 b6d8 c8d8","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wCo7K","f":"6k1/2Rn1ppp/4p3/1p1p4/1P1P4/r3PB2/5PPP/6K1 w - - 0 27","m":"c7d7 a3a1 f3d1 a1d1","r":516,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wCuqa","f":"5rk1/pp3ppp/2p1pn2/q1P2b2/2Nr4/1Bb2Q1P/P1P1RPPB/3R2K1 w - - 0 23","m":"c4a5 d4d1 e2e1 d1e1","r":539,"t":"backRankMate hangingPiece mate mateIn2 middlegame short"},{"i":"wDIBX","f":"5rk1/pR4bp/4p1p1/4P3/8/2B5/6PP/3Q1q1K w - - 3 27","m":"d1f1 f8f1","r":501,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wDUaB","f":"1Q4k1/3R1ppp/2n5/4b3/8/4B1PB/P1q2P1P/6K1 b - - 0 31","m":"c6b8 d7d8","r":585,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wDWTt","f":"3r2k1/4b1pp/1pB2p2/4p3/3B4/4P3/1Rb2PPP/6K1 w - - 0 26","m":"d4b6 d8d1","r":498,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wDdH8","f":"4r1k1/4rpp1/3R1b1p/4PB2/1p3P2/2p5/PP4PP/3R3K w - - 0 31","m":"e5f6 e7e1 d1e1 e8e1","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wDrPD","f":"3rR2k/5Qpp/p1p5/4p2n/1P2P3/P6P/1q3PPK/8 b - - 3 36","m":"d8e8 f7e8","r":449,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wE5HO","f":"2R1r1k1/pp2rppp/5q2/3p1b2/4p3/4P1P1/PPQN1P1P/2R3K1 b - - 1 21","m":"e8c8 c2c8 f5c8 c1c8 e7e8 c8e8","r":424,"t":"backRankMate long mate mateIn3 middlegame"},{"i":"wEqlB","f":"1r3bk1/5p2/p1q2Bpp/3Np3/P3P3/8/5PPP/2R3K1 w - - 0 38","m":"c1c6 b8b1 c6c1 b1c1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wFk4S","f":"2r3k1/5ppp/R7/PpB5/8/1bP1P3/5PPP/6K1 b - - 0 26","m":"c8c5 a6a8 c5c8 a8c8","r":447,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wGZl3","f":"2kr4/ppp3pp/5p2/5b2/2P2B2/PP6/1R2pPPP/6K1 w - - 0 22","m":"b2e2 d8d1 e2e1 d1e1","r":475,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wGfha","f":"2r2rk1/pQ3pp1/3Npn1p/3p4/8/5RP1/PP4PP/R1q4K w - - 2 22","m":"a1c1 c8c1 f3f1 c1f1","r":571,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wGtIg","f":"5k2/1p5p/p5p1/2rBR3/8/8/PP1R1PPP/1b4K1 w - - 1 26","m":"a2a3 c5c1 d2d1 c1d1 e5e1 d1e1","r":509,"t":"backRankMate endgame long mate mateIn3"},{"i":"wH7xe","f":"2r1Q1k1/1r1b1ppp/5q2/3P4/p4b2/P4N1P/3NRPP1/4R1K1 b - - 4 31","m":"d7e8 e2e8 c8e8 e1e8","r":409,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wH8w5","f":"3r2k1/ppq2ppb/7p/2p4P/2Pb4/5BN1/PP2QPP1/4R1K1 b - - 1 22","m":"c7g3 e2e8 d8e8 e1e8","r":595,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"wHNGV","f":"1k6/ppp2pb1/6p1/4p3/2P5/1P5K/PB2RqP1/3R4 b - - 0 25","m":"f2e2 d1d8","r":460,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"wHNv0","f":"2r3k1/5ppp/p4b2/3R4/8/4B3/PP3PPP/6K1 w - - 1 21","m":"d5d2 c8c1 d2d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wHmM9","f":"r5k1/5p2/4p2p/3pP2Q/1qpb1P2/p7/R5PP/1BN4K w - - 6 30","m":"b1c2 b4e1","r":581,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"wHxkp","f":"5rk1/p1pp1rp1/1p2p3/2b1P1qp/2P1QP2/6B1/PP4PP/R4R1K w - - 0 22","m":"f4g5 f7f1 a1f1 f8f1","r":566,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wIR2K","f":"6k1/5ppp/1P2p3/8/8/1r4P1/5P1P/R5K1 b - - 0 27","m":"b3b6 a1a8 b6b8 a8b8","r":473,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"wIe1i","f":"r3r1k1/p1p3b1/1p3n1p/4q1p1/2P2p2/P6P/1PQRBPPB/3R2K1 w - - 0 23","m":"e2f3 e5e1 d1e1 e8e1","r":573,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"wJBPX","f":"4r1k1/p4ppp/3R2b1/1Pp1Q3/1q2P3/1P3PPB/7P/3R2K1 b - - 0 29","m":"e8e5 d6d8 e5e8 d8e8","r":503,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wJD4m","f":"r3Q2k/1p4pp/p1p3q1/5p2/3P4/P1P4r/1P2RPP1/4R1K1 b - - 1 29","m":"a8e8 e2e8 g6e8 e1e8","r":517,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"wJohj","f":"3r2k1/p1Q2ppp/4b3/8/3pp3/4P3/PP3Pq1/1KR1B3 b - - 1 32","m":"d8c8 c7c8 e6c8 c1c8","r":589,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wK3kw","f":"3r2k1/1p3ppp/p4q2/5P2/2P5/1P2Q3/P5PP/4R2K b - - 0 34","m":"f6f5 e3e8 d8e8 e1e8","r":598,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"wK5jg","f":"b4r1k/4Q1bp/6p1/1p4N1/4P3/6N1/6PP/5q1K w - - 0 32","m":"g3f1 f8f1","r":438,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wKFfu","f":"3r2k1/1p4p1/7p/3rpQ2/2n1N3/2P5/5PPP/2q1R1K1 w - - 0 34","m":"e1c1 d5d1 c1d1 d8d1","r":505,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wKOJq","f":"6k1/p4ppp/1pp5/4r3/8/2Nn4/PP3PPP/3R2K1 b - - 1 26","m":"d3b2 d1d8 e5e8 d8e8","r":572,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wKUzt","f":"6k1/pp3ppp/5b2/2p5/3nPQ2/q2N2P1/6BP/6K1 b - - 0 27","m":"a3d3 f4b8 f6d8 b8d8","r":598,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wKkgj","f":"5rk1/1b5p/p5p1/1pRp4/1P1Pp3/P3P3/3B2PP/3Q1q1K w - - 6 27","m":"d1f1 f8f1","r":541,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wKqtt","f":"r2q3r/pp5p/2p1kp2/2b1N3/4P1b1/8/PPP3PP/RNBQ3K w - - 0 13","m":"e5g4 d8d1","r":453,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"wL3kU","f":"4r1k1/1pp1Qppp/p7/4p2n/8/2N5/PPP2PPP/3R2K1 b - - 0 18","m":"e8e7 d1d8 e7e8 d8e8","r":454,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wLpqU","f":"3r2k1/1Bp2pp1/p3b3/2P1q3/P6p/2Q5/5PPP/6K1 w - - 0 27","m":"c3e5 d8d1 e5e1 d1e1","r":433,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wMG1Z","f":"6k1/5ppp/4p3/R2p4/p1r5/b3P1P1/1N3PKP/8 b - - 3 32","m":"a3b2 a5a8 c4c8 a8c8","r":562,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wMayQ","f":"3q1k1r/4bppp/8/2QNp3/8/1P6/PB3PPP/6K1 w - - 1 27","m":"d5e7 d8d1","r":516,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wOQf5","f":"4Qrk1/1p3ppp/p7/2p3n1/q7/2P1R3/PP3PPP/1K2R3 b - - 0 27","m":"f8e8 e3e8 a4e8 e1e8","r":474,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wOa1j","f":"6k1/p2r2p1/4p2p/B1Pn4/3P4/PP6/5rPP/RR5K w - - 1 30","m":"a5e1 f2f1","r":519,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wOwPc","f":"1k6/ppp2pp1/2b5/4pP2/4P3/2Pq1P2/PP2N3/2K4R b - - 2 32","m":"d3e2 h1h8 c6e8 h8e8","r":508,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wP6Qb","f":"r5k1/5ppp/P2n4/8/1R2nb2/5B1P/6P1/6K1 b - - 4 37","m":"a8a6 b4b8 d6c8 b8c8","r":529,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wP7MD","f":"4r1k1/5ppp/p7/1p1R4/3PR3/2P3P1/7P/6K1 b - - 0 37","m":"e8e4 d5d8 e4e8 d8e8","r":546,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"wPH7h","f":"2r3k1/5pp1/p3p2p/2rpP3/1q1N4/1P6/1B1Q1PPP/6K1 w - - 0 29","m":"d2b4 c5c1 b2c1 c8c1 b4e1 c1e1","r":507,"t":"backRankMate endgame long mate mateIn3 sacrifice"},{"i":"wPMGG","f":"4r1k1/Q4ppp/bp6/2p5/2n5/2P5/P5PP/3Rq2K w - - 1 29","m":"d1e1 e8e1","r":434,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wPfdJ","f":"6k1/7p/2r1pp2/3p4/1r6/4P3/5PPP/2R3K1 w - - 0 26","m":"c1c6 b4b1 c6c1 b1c1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"wPfpR","f":"r1k5/ppp4r/4B1bp/2b2pp1/3R4/2N5/PPP2PPP/2K4R b - - 1 18","m":"c8b8 d4d8","r":479,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"wQEU6","f":"r3r1k1/5ppp/p2p4/1pp5/P7/1PqP2Q1/5PPP/2R3K1 w - - 0 22","m":"c1c3 e8e1","r":481,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"wQU4p","f":"8/5ppk/1pR2n1p/pr2N3/1P1P4/4P3/5PPP/6K1 w - - 1 27","m":"b4a5 b5b1 c6c1 b1c1","r":569,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wRGAE","f":"6k1/5p1p/6p1/1N1pR2n/rP6/8/1P3PPP/6K1 w - - 0 29","m":"e5e2 a4a1 e2e1 a1e1","r":551,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wRTma","f":"3r3k/p5pp/qp6/8/2P1Q3/8/P1R2PPP/2Rr2K1 w - - 1 32","m":"c1d1 d8d1 e4e1 d1e1","r":490,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wRYqF","f":"1R3R2/5pkp/6p1/3pp3/2r5/Q7/1P3PPP/6K1 w - - 1 36","m":"b8b7 c4c1","r":418,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"wRbUz","f":"7k/3N2pp/p2p4/3Np3/p7/6PP/1q3RK1/8 b - - 0 30","m":"b2b7 f2f8","r":586,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wSGOQ","f":"2kr4/pp4pp/4pp2/2b5/1P3P2/N7/P5PP/B1Rr3K w - - 3 21","m":"c1d1 d8d1","r":553,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wSRT1","f":"r1bqrkn1/pp4p1/4p2p/2p1Pn1Q/8/2PB1R2/PP3PPP/R1B3K1 w - - 7 17","m":"d3f5 d8d1","r":596,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"wT7j8","f":"3r4/pp3pk1/4p1p1/1P1r3p/P7/2R5/6PP/Q1Rq3K w - - 2 35","m":"c1d1 d5d1 a1d1 d8d1","r":579,"t":"backRankMate endgame fork mate mateIn2 queenRookEndgame short"},{"i":"wTBgC","f":"3r3r/1pp2kpn/p3R2p/8/8/P1P5/5PPP/R1B3K1 w - - 1 19","m":"e6e2 d8d1 e2e1 d1e1","r":424,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wTeTS","f":"b5k1/2q2pp1/pr5p/3pN3/3P4/4P3/P4PPP/2R3K1 w - - 0 24","m":"c1c7 b6b1 c7c1 b1c1","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wTkkT","f":"r5k1/5ppp/2q1p3/2Np4/RQnP4/2P1P2P/5PP1/6K1 b - - 0 28","m":"a8a4 b4b8 c6c8 b8c8","r":547,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wU5Bw","f":"r1b2r1k/1p3Npp/2p4q/p4p2/2p5/2P5/PP3PPP/1K1R1B1R b - - 1 19","m":"f8f7 d1d8 f7f8 d8f8","r":411,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wVpFe","f":"5r1k/6pp/7q/pRp1p3/P3P1B1/2PP3P/2n2PP1/7K b - - 2 26","m":"f8f2 b5b8 f2f8 b8f8","r":581,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wWCur","f":"rk1Q3r/ppp2pp1/6qp/4P3/1b6/8/PPP2PPP/RN1R2K1 b - - 6 16","m":"h8d8 d1d8","r":425,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"wWFcO","f":"7k/pp4pp/8/5p2/6q1/P1P1rbP1/3R3P/6K1 b - - 3 38","m":"g4h3 d2d8 e3e8 d8e8","r":533,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wWOQe","f":"R1b4k/4R2p/3P2p1/2r5/8/8/5PPP/6K1 w - - 2 37","m":"d6d7 c5c1 e7e1 c1e1","r":415,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wWRMQ","f":"3r2k1/5ppp/p2Pp3/3p4/5P2/7P/P2K2P1/2R5 b - - 0 26","m":"d8d6 c1c8 d6d8 c8d8","r":475,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"wWa5X","f":"2kr4/p7/2pqp3/6p1/6Qp/8/PPP2PPP/R5K1 w - - 0 22","m":"g4g5 d6d1 a1d1 d8d1","r":469,"t":"backRankMate endgame master mate mateIn2 sacrifice short"},{"i":"wWoyQ","f":"r1Q3k1/pp1r1ppp/4p1q1/5n2/4p3/8/PP3PPP/2R1R1K1 b - - 1 22","m":"a8c8 c1c8 d7d8 c8d8","r":527,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wXEHt","f":"1r1q2k1/1p3ppp/pQpr4/P7/8/P1R1P3/5PPP/1R4K1 w - - 8 26","m":"c3b3 d6d1 b1d1 d8d1","r":507,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wXhw8","f":"3r2k1/5pbp/pQ2pnp1/8/PPP5/8/5PPP/2Rq2K1 w - - 3 30","m":"c1d1 d8d1","r":461,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wXmJd","f":"6k1/pp3ppp/3p4/3P4/7P/q1RK4/P3rPP1/8 b - - 0 28","m":"a3a2 c3c8 e2e8 c8e8","r":541,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"wYTJJ","f":"6k1/3b1p1p/5nq1/pQ6/2p1r1p1/8/PP3PPP/K2R1B1R w - - 2 22","m":"d1d7 e4e1 d7d1 e1d1","r":485,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wYU5w","f":"5r1k/p1p2rp1/3P3p/3Qp3/8/2P3N1/P5PP/3R1q1K w - - 3 27","m":"g3f1 f7f1 d1f1 f8f1","r":559,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wYXzg","f":"8/5pk1/3R3p/1p2P1p1/2P5/8/r2p1PPP/6K1 w - - 0 35","m":"c4b5 a2a1","r":459,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"wYZw8","f":"1k1r1bnr/pp3ppp/6q1/2p1B3/8/2N3PB/PPP2P1P/R2Q2K1 b - - 3 14","m":"b8a8 d1d8","r":472,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"wZ0Gg","f":"3r2k1/3q1bpp/p7/1pQ2p2/4nN2/1P2PB2/P4PPP/2R3K1 w - - 3 28","m":"f3e4 d7d1 c1d1 d8d1","r":536,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"wZ8L0","f":"1Qr4k/6pp/8/p4R2/8/P3q1P1/1P4BP/5R1K b - - 0 25","m":"c8b8 f5f8 b8f8 f1f8","r":571,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wZNi6","f":"5r1k/pp2N2p/3npq2/6p1/4P3/1P6/3Q2PP/3R3K w - - 4 27","m":"d2d6 f6f1 d1f1 f8f1","r":446,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"wZYQj","f":"6k1/p3rppp/1p6/1N2P3/2p2P2/3n2K1/P5PP/3R4 b - - 0 28","m":"d3c5 d1d8 e7e8 d8e8","r":586,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wZZo3","f":"5r1k/2Qp2pp/8/3Bp3/8/2N4P/PPP5/1K3q1R w - - 1 27","m":"h1f1 f8f1 c3d1 f1d1","r":458,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wZaX1","f":"r4r2/pp4Qp/2b1k1n1/3p4/3P4/2N5/PP4PP/5R1K w - - 4 24","m":"g7h7 f8f1","r":441,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"waMIk","f":"1r2nQ1k/2pqb1pp/2p5/p1Pp2P1/1r1P3P/2N5/PP6/K1BR1R2 b - - 6 26","m":"e7f8 f1f8","r":400,"t":"backRankMate master mate mateIn1 middlegame oneMove"},{"i":"waTBB","f":"r4k2/7p/p7/3Rp3/4r3/8/PP3PPP/2R3K1 w - - 1 30","m":"c1c7 e4e1","r":590,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"waYm8","f":"r5k1/6pp/1b1RP3/P1p1p3/8/8/5PPP/6K1 w - - 0 29","m":"a5b6 a8a1 d6d1 a1d1","r":519,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"waotz","f":"r2r2k1/p4p1p/2p1b1pB/8/N3P3/Q7/P5PP/R2q3K w - - 1 21","m":"a1d1 d8d1","r":439,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"wb89e","f":"2r3k1/p1r2ppp/4p3/3pNb2/1q3P2/R1P5/3Q2PP/2R4K w - - 0 25","m":"c3b4 c7c1 d2c1 c8c1","r":558,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wbZA6","f":"k3Q2r/pp4p1/5p2/2p2P2/2P4P/P5BK/1Pq4P/3rR3 b - - 2 28","m":"h8e8 e1e8 d1d8 e8d8","r":516,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wbwfi","f":"3r2k1/1p3ppb/p7/5P1p/3R2P1/5K1P/1P6/2R5 b - - 0 34","m":"d8d4 c1c8 d4d8 c8d8","r":494,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"wc0Zo","f":"7k/6pp/p4p2/1p2p3/P7/3rPP2/2r4P/1R4K1 b - - 0 33","m":"b5a4 b1b8 c2c8 b8c8 d3d8 c8d8","r":421,"t":"backRankMate endgame long mate mateIn3 rookEndgame"},{"i":"wc7yq","f":"1k6/ppp2p1p/8/n1p1pP2/6R1/P1Pr1P2/1P2KP1P/8 b - - 1 27","m":"c5c4 g4g8 d3d8 g8d8","r":401,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wcCWK","f":"3r2k1/p1p2ppp/1p1Rp3/4p1PP/5q2/P1P5/1PP2PQ1/1K5R b - - 0 24","m":"d8d6 g2a8 d6d8 a8d8","r":569,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wcMBr","f":"3q4/5kb1/6pp/2r1p3/8/6B1/PP3PPP/3R2K1 w - - 0 27","m":"d1d8 c5c1 d8d1 c1d1","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wcYEN","f":"6k1/5pp1/2p2p1p/8/3PP3/2r2N2/1q3PPP/1R4K1 w - - 0 30","m":"b1b2 c3c1 f3e1 c1e1","r":508,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wcbbt","f":"3r2k1/2R2pp1/4p3/1p6/4P2p/6N1/3rNPPP/1R4K1 w - - 0 27","m":"g3h5 d2d1 b1d1 d8d1","r":589,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wcv71","f":"4r2k/1p3ppp/8/4Qb2/2P5/7P/P4PP1/3R2K1 b - - 0 32","m":"e8e5 d1d8 e5e8 d8e8","r":535,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wdZst","f":"2r4k/6pp/Q4pq1/p2p4/1pb5/4P3/PBR2PPP/2R3K1 b - - 0 26","m":"c4a6 c2c8 a6c8 c1c8 g6e8 c8e8","r":520,"t":"backRankMate endgame long mate mateIn3"},{"i":"wduRo","f":"6k1/5ppp/4p1b1/4P3/8/R5KP/3q2P1/4r3 b - - 11 45","m":"e1e2 a3a8 d2d8 a8d8","r":554,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wepyP","f":"6k1/2R2ppp/4b3/3p4/1P1P4/r3B3/5PPP/6K1 w - - 0 25","m":"c7b7 a3a1 e3c1 a1c1","r":472,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wetmz","f":"6k1/pp3ppp/1q2p3/2n5/2Q5/1BP4P/PP3PP1/6K1 b - - 4 24","m":"c5b3 c4c8 b6d8 c8d8","r":525,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wfYB9","f":"2r5/5pk1/1R5p/1p1Pp3/1P2P1p1/5N2/P4PPP/6K1 w - - 1 28","m":"b6b5 c8c1 f3e1 c1e1","r":479,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wfZ8V","f":"r1b1r1k1/pp3ppp/2p5/4Q3/2P5/4B2P/1P4P1/3RR1K1 b - - 0 21","m":"e8e5 d1d8 e5e8 d8e8","r":560,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wg6g2","f":"5k2/5ppp/1r6/3Pb3/8/8/5PPP/4R1K1 w - - 0 34","m":"e1e5 b6b1 e5e1 b1e1","r":474,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"wgfGl","f":"7k/p1pn2pp/1p1p4/5pP1/3P2q1/2Pb2B1/PP1N2KP/4R3 b - - 3 26","m":"g4g5 e1e8 d7f8 e8f8","r":498,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wgm3N","f":"6k1/3p1ppp/4pn2/1Nr5/4BP2/8/1PP3PP/R5K1 b - - 0 22","m":"f6e4 a1a8 c5c8 a8c8","r":541,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wh9Ge","f":"7k/r5p1/3B3p/1pP5/8/1P6/5PPP/6K1 w - - 0 37","m":"c5c6 a7a1","r":402,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"whlgU","f":"2r3k1/2p1Rppp/p2p4/2p5/8/6P1/r4PP1/4R1K1 b - - 3 25","m":"c5c4 e7e8 c8e8 e1e8","r":461,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"whoAk","f":"Q6k/5ppp/1nrBp2b/3pP3/5P2/2P3P1/7P/R5K1 b - - 0 35","m":"b6a8 a1a8 c6c8 a8c8","r":445,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wiPvz","f":"r2k1r2/pppb2pp/8/3QR3/8/2PP4/P5PP/4Rq1K w - - 2 23","m":"e1f1 f8f1","r":418,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wiY40","f":"4r1k1/1n3pbp/2Np2p1/3P4/5P2/1P2rB2/R1P3PP/3R3K w - - 2 33","m":"a2a7 e3e1 d1e1 e8e1","r":507,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"widNN","f":"2r3k1/p4ppp/5n2/1P2p3/6PN/r4P2/b3K2P/1RR5 b - - 3 33","m":"a2b1 c1c8 f6e8 c8e8","r":568,"t":"backRankMate endgame hangingPiece mate mateIn2 short"},{"i":"wig5E","f":"r4Q1k/1ppb2pp/p3p3/3pP1q1/3Pn3/N1PB4/PP4PP/5RK1 b - - 5 18","m":"a8f8 f1f8","r":454,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"wjDQ3","f":"1k2r3/2p4p/1p1p2p1/p7/7P/5P2/PPPr2P1/1K1R4 w - - 0 31","m":"d1d2 e8e1 d2d1 e1d1","r":477,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"wjIGs","f":"r1b1r1k1/ppp2ppp/8/8/8/5NP1/PPP1B1PP/3R1RK1 b - - 0 14","m":"e8e2 d1d8 e2e8 d8e8","r":500,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wjOZT","f":"7k/pp4bp/6p1/B7/3pP3/1Q6/PP3PPP/2r3K1 w - - 0 23","m":"a5e1 c1e1","r":528,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"wjYmx","f":"6k1/5ppp/1q6/p1p2P1n/3Q1P2/1PP4P/2B3P1/4R1K1 b - - 0 32","m":"c5d4 e1e8","r":583,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"wjZKF","f":"r5k1/p5pp/2R1br2/8/2N5/Q1P5/P5PP/3R1q1K w - - 2 24","m":"d1f1 f6f1","r":400,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"wjchA","f":"5rk1/ppp3p1/5q1p/2bP4/4N3/3P4/PP1B2PP/R2Q1r1K w - - 3 23","m":"d1f1 f6f1 a1f1 f8f1","r":557,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wkTXm","f":"3r2k1/p4pp1/2R1p2p/5b2/8/6B1/PP1r1PPP/R5K1 w - - 1 28","m":"a1c1 d2d1 c1d1 d8d1","r":437,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wkULD","f":"1r5k/6pp/2r5/8/8/5P2/2pR1KPP/2R5 b - - 3 42","m":"b8b2 d2d8","r":523,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"wkbUm","f":"r3r3/ppp2k1p/3p2p1/4qb2/6nN/2P2RQ1/PP3PPP/R5K1 w - - 0 23","m":"g3g4 e5e1 a1e1 e8e1","r":491,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"wkkVK","f":"k2r3r/p1Qq1p1p/Bpp5/5p2/8/8/PPP2P1P/1K2R1R1 w - - 8 24","m":"e1e7 d7d1 g1d1 d8d1","r":592,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"wl6qH","f":"3r2k1/5ppp/p3p3/1p2R1Q1/2r5/P1P5/1P3PPP/2Rq2K1 w - - 1 25","m":"c1d1 d8d1 e5e1 d1e1","r":505,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"wlHbX","f":"7k/ppr3p1/5p1p/q3pP2/3pP3/P2P4/1P1Q1RPP/7K w - - 2 35","m":"d2a5 c7c1 a5e1 c1e1 f2f1 e1f1","r":558,"t":"backRankMate endgame long mate mateIn3 queenRookEndgame"},{"i":"wlMnK","f":"4r2k/p5p1/2p3Q1/3p4/8/4qP2/P5PP/1R4K1 w - - 3 28","m":"g1h1 e3e1 b1e1 e8e1","r":522,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"wmFgt","f":"1r2R2k/3Q2pp/5b2/5P2/2P4P/P3P3/3KB3/6q1 b - - 3 42","m":"b8e8 d7e8","r":408,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wmScR","f":"r5k1/ppp2rPp/2n1R2B/8/8/3pb3/PP4PP/RN5K w - - 2 17","m":"e6e3 f7f1","r":459,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"wmfsY","f":"5k2/p4ppp/3BR3/1p1P3P/n1r5/K4P2/2P5/8 b - - 1 32","m":"f8g8 e6e8","r":400,"t":"backRankMate endgame master masterVsMaster mate mateIn1 oneMove"},{"i":"wmgTp","f":"3r2k1/1pp3pp/p3p3/8/3PpQ2/1P4PP/1Pq3P1/5RK1 b - - 1 25","m":"g8h8 f4f8 d8f8 f1f8","r":481,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"wmnp6","f":"5R2/p1r4p/3pR2B/5rpk/8/8/P4PPP/6K1 w - - 4 34","m":"f8f5 c7c1 e6e1 c1e1","r":464,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wnDa4","f":"8/pp1R2p1/2p1k2p/P3P3/1P3p2/1r6/6PP/7K w - - 3 34","m":"d7b7 b3b1","r":547,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"wnVWG","f":"5rk1/p7/1p2pqp1/3p4/PP1Pp1Q1/4b3/1B1N2PP/5RK1 w - - 0 25","m":"g1h1 f6f1 d2f1 f8f1","r":484,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wo960","f":"2r3k1/6pp/8/pB1p1p2/P2Bp3/4P3/2r2PPP/R5K1 w - - 1 29","m":"b5d7 c2c1 a1c1 c8c1","r":516,"t":"backRankMate endgame mate mateIn2 short"},{"i":"woNRt","f":"7k/p2q2b1/2pr4/2N1p3/8/8/PP4QP/K2R4 w - - 0 35","m":"d1g1 d6d1 g1d1 d7d1","r":459,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wpTAF","f":"6k1/2p2ppp/8/pR6/8/P1K4P/3r1PP1/8 b - - 2 34","m":"d2f2 b5b8","r":454,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"},{"i":"wpmZ1","f":"5r1k/ppq3pp/2n5/2Np4/3P4/2P5/P4QPP/R3R1K1 b - - 0 20","m":"f8f2 e1e8 f2f8 e8f8","r":460,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wpmzd","f":"3qr3/5bkp/5pp1/p1Qp4/3B4/8/PP1R1PPP/K7 w - - 3 33","m":"d4c3 e8e1 d2d1 e1d1","r":520,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wpuOI","f":"4r1k1/8/1p2r1pp/pbp2p2/8/2n5/PPB2PPP/1RNR2K1 w - - 0 32","m":"b2c3 e6e1 d1e1 e8e1","r":528,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wq1zU","f":"4rQ1k/r3q1pp/bp2p3/p3P3/P2P4/2P2R2/1P3RPP/6K1 b - - 1 28","m":"e8f8 f3f8 e7f8 f2f8","r":442,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wqGTi","f":"1k1r3r/pp3Bp1/2n3p1/6P1/4Pb2/1Q5P/PPP2P2/1K1q3R w - - 0 23","m":"h1d1 d8d1","r":457,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"wr7Nj","f":"1k2r3/pp3ppp/3r1n2/8/2Rp4/7Q/PP4PP/2R1q2K w - - 4 25","m":"c1e1 e8e1","r":586,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wr9DD","f":"rn3r1k/1p4pp/p7/6P1/8/5Q2/P4P1P/3R1K1R b - - 0 22","m":"f8f3 d1d8 f3f8 d8f8","r":430,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wrFMM","f":"r3r1k1/pp3pp1/7p/3R4/2Pp4/bP1P1Q2/P4PPP/R3q1K1 w - - 5 19","m":"a1e1 e8e1","r":400,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"wrWMw","f":"3rrb1k/pp3qpp/2n5/8/6Q1/3P4/PP4PP/R1B2R1K w - - 0 21","m":"f1f7 e8e1 f7f1 e1f1","r":431,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wrnhz","f":"r1b3k1/1p1n1ppp/p1r2B2/1Np5/2P1p3/1P2P1PP/P4PB1/3R2K1 b - - 0 22","m":"d7f6 d1d8 f6e8 d8e8","r":536,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wsI5R","f":"3R4/Q4ppk/2r1q2p/8/4p3/5N2/6PP/7K w - - 1 38","m":"f3d4 c6c1","r":512,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wsrWp","f":"6k1/ppr2ppp/8/8/3q4/1P6/P4PPP/3Q2K1 w - - 0 26","m":"d1d4 c7c1 d4d1 c1d1","r":469,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"wsxkq","f":"5k2/1p3ppp/p7/8/2r5/P7/1P3PPP/3R2K1 w - - 0 23","m":"d1d2 c4c1 d2d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"wtPZr","f":"2r3k1/pp3p1p/3q4/8/2r5/7Q/P5PP/3R3K w - - 0 26","m":"d1d6 c4c1 d6d1 c1d1","r":505,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"wtwr1","f":"3rQ2k/p1p3pp/2P5/2p2rq1/P7/2P5/6PP/R3R1K1 b - - 4 27","m":"d8e8 e1e8 f5f8 e8f8","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"wuDd4","f":"1n1R3Q/q3rk2/pN4p1/1p6/8/1bP5/PP3PPP/6K1 w - - 0 33","m":"a2b3 e7e1","r":464,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wuuyV","f":"3r4/8/p5kp/1p4p1/8/2P1B3/PP3PPP/4R1K1 w - - 2 34","m":"e1e2 d8d1 e2e1 d1e1","r":492,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wuzHR","f":"5r1k/7p/p4qp1/8/1P1bB3/1P5Q/P5PP/3R2K1 w - - 1 33","m":"g1h1 f6f1 d1f1 f8f1","r":597,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"wvfNC","f":"1k4nr/ppp2ppp/8/3Rq3/4P1B1/6P1/PPP2P1K/R1B5 b - - 0 15","m":"e5e4 d5d8","r":420,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"wvy1c","f":"4r1k1/4Nppp/p3p3/1p6/4n3/P6P/1P2NPP1/2R3K1 b - - 0 27","m":"e8e7 c1c8 e7e8 c8e8","r":539,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wwWSg","f":"r1b2rk1/ppp4p/3p2p1/8/8/N1Q5/P1P3PP/R4q1K w - - 4 23","m":"a1f1 f8f1","r":422,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wwdWf","f":"5r1k/p1p3pp/2p1Q3/3p4/8/2N5/PPP2rPP/3qR2K w - - 0 22","m":"c3d1 f2f1 e1f1 f8f1","r":540,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"wwnC1","f":"3rr1k1/pp4b1/2p3Q1/4p1p1/8/2P1P1N1/PP3PPP/2Rq3K w - - 4 28","m":"c1d1 d8d1 g3f1 d1f1","r":403,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"wx37c","f":"r4rk1/ppp3pp/4pq2/4p3/2B5/3Pb3/PP4PP/RN1Q1RK1 w - - 0 15","m":"g1h1 f6f1 d1f1 f8f1","r":494,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"wxFCK","f":"4r1k1/2p2pp1/r1pp3p/7N/8/6Q1/5PPP/3Rq1K1 w - - 6 34","m":"d1e1 e8e1","r":563,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"wxy47","f":"6k1/5ppp/4pn2/8/1p2P3/1N1R1P2/1Pr3PP/6K1 b - - 2 33","m":"c2b2 d3d8 f6e8 d8e8","r":433,"t":"backRankMate endgame mate mateIn2 short"},{"i":"wygn1","f":"2r3k1/1p3ppp/p3p3/4P3/8/8/PP1r1PPP/3R2K1 w - - 0 20","m":"d1d2 c8c1 d2d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"wyj7K","f":"1k1r4/ppp3rp/5R2/3N4/2p2P2/8/PP3P1P/5K1R b - - 0 23","m":"d8d5 f6f8 d5d8 f8d8","r":451,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"wyydp","f":"rnb1k2r/p3nppp/1p2p3/1B6/8/2N1PN2/PP3PPP/3RK2R b K - 1 12","m":"e8f8 d1d8","r":441,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"x03Q5","f":"r5k1/Pn3ppp/4p3/3b4/8/5N1P/5PP1/2R3K1 b - - 2 37","m":"a8a7 c1c8 b7d8 c8d8","r":494,"t":"backRankMate endgame mate mateIn2 short"},{"i":"x0WoI","f":"7r/4kppp/4p3/1p6/1P2R3/2P5/3r1PPP/R5K1 w - - 0 26","m":"a1a5 d2d1 e4e1 d1e1","r":438,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"x0rin","f":"3r1rk1/1Q3pp1/p6p/4qP2/P7/1P6/2P2PPP/4R1K1 w - - 0 21","m":"e1e5 d8d1 e5e1 d1e1","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"x1BTN","f":"3r2k1/pp3ppp/1q3n2/3B4/3P4/4Q2P/PP1N2P1/4R2K b - - 0 22","m":"f6d5 e3e8 d8e8 e1e8","r":435,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"x1os4","f":"3rr1k1/4bppp/5B2/p2pQ3/P7/2N4P/1qP2PP1/3RR1K1 b - - 0 21","m":"e7f6 e5e8 d8e8 e1e8","r":558,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"x2mVf","f":"r1bn2k1/ppp2ppp/8/1B6/5n2/2P2N2/PBP2PPP/4R1K1 b - - 0 16","m":"c8g4 e1e8","r":515,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"x2o0m","f":"8/2r5/R7/3p2k1/1P3pp1/p7/5PPP/6K1 w - - 0 41","m":"a6a3 c7c1","r":422,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"x2rYb","f":"5rk1/1br2ppp/p3p3/1pn1p3/8/2N2P2/PPPR2PP/3R2K1 b - - 0 22","m":"f8c8 d2d8 c8d8 d1d8","r":458,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"x4Vyl","f":"6k1/Q4ppp/r4q2/3p2n1/3PpN2/P3P1P1/1r5P/2R1RK2 b - - 9 28","m":"a6a7 c1c8 f6d8 c8d8","r":417,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"x500F","f":"6k1/5ppp/4pn2/r7/P2P4/2R1P3/4KP1P/8 b - - 0 28","m":"a5a4 c3c8 f6e8 c8e8","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"x5zBc","f":"rn4k1/p5pp/1p2R3/8/2Bp4/5q2/P1P2P1P/5RK1 b - - 1 21","m":"g8h8 e6e8 f3f8 e8f8","r":428,"t":"backRankMate endgame mate mateIn2 short"},{"i":"x6gO6","f":"2Rr1Q1k/p2q2pp/8/8/2B5/6B1/P5PP/7K b - - 1 31","m":"d8f8 c8f8","r":476,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"x6phc","f":"3r2k1/1R3ppp/4p3/1p1rn3/8/4B3/PP3PPP/5RK1 w - - 1 24","m":"f1c1 d5d1 c1d1 d8d1","r":571,"t":"backRankMate endgame mate mateIn2 short"},{"i":"x6zHy","f":"7k/pp4pp/2p2r2/4pP2/8/8/PPP4P/3R3K b - - 1 28","m":"f6f5 d1d8 f5f8 d8f8","r":416,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"x7E4p","f":"1r2r1k1/p4p1p/6pQ/8/8/1P1R4/P4PPP/3Rq1K1 w - - 7 27","m":"d1e1 e8e1","r":486,"t":"backRankMate endgame mate mateIn1 oneMove queenRookEndgame"},{"i":"x8VPC","f":"3r1rk1/pp2pp1p/6p1/2P1Q3/8/5R2/PPPq1P1P/2K3R1 w - - 1 25","m":"c1b1 d2d1 g1d1 d8d1","r":583,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"x8dH2","f":"1rQ1kb1r/p2npppp/1p6/1q1p4/3P1B2/4PN2/P2N1PPP/R1R3K1 b k - 2 17","m":"b8c8 c1c8","r":481,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"x9J1q","f":"b2r2k1/7p/1pP1nRp1/1P2b3/8/5NB1/5PPP/6K1 w - - 0 31","m":"f6e6 d8d1 f3e1 d1e1","r":440,"t":"backRankMate endgame mate mateIn2 short"},{"i":"x9TPb","f":"5r1k/pp3pNp/2p2q2/4p3/4r3/1P4R1/P5PP/5R1K w - - 0 34","m":"f1f6 e4e1 f6f1 e1f1","r":507,"t":"backRankMate endgame mate mateIn2 short"},{"i":"x9UR9","f":"4r3/6kp/6p1/2b5/2R1N3/1P1P1P2/2Pq2PP/7K w - - 0 36","m":"e4d2 e8e1 d2f1 e1f1","r":437,"t":"backRankMate endgame mate mateIn2 short"},{"i":"x9uNp","f":"3r1Q1k/p5pp/8/3p2q1/P2Pr3/2B5/1P4PN/5RK1 b - - 2 33","m":"d8f8 f1f8","r":457,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"xA9rV","f":"2rQ1k1r/pp2nppp/4p1b1/8/7N/2P3P1/P3qPBP/R2R2K1 b - - 4 17","m":"c8d8 d1d8","r":560,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"xAKkI","f":"1k6/ppp2q1p/2n1r3/7r/8/P1PQ1P2/1P4PP/3R1RK1 b - - 14 28","m":"f7f4 d3d8 c6d8 d1d8","r":568,"t":"backRankMate mate mateIn2 middlegame sacrifice short"},{"i":"xATy2","f":"6r1/2R5/2nr2p1/p4p1p/2k2N2/P7/1PP3PP/5R1K w - - 1 36","m":"f1f3 d6d1 f3f1 d1f1","r":498,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xAoLz","f":"1k6/ppp2p2/2p5/7p/1bbr4/3B1PN1/1PP1R1PP/6K1 b - - 3 23","m":"c4d3 e2e8 d4d8 e8d8","r":462,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xAqbq","f":"1k6/ppprp2p/5Bp1/5p2/8/1PP2P2/1P3KPP/4R3 b - - 0 23","m":"e7f6 e1e8 d7d8 e8d8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"xAwcK","f":"1k5r/pppQ1ppp/8/1P6/P6N/8/2P2qPP/3Rr2K w - - 2 29","m":"d1e1 f2e1","r":571,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"xB0Iz","f":"Q2r2k1/4Rppp/p5q1/1p6/2p5/P5P1/1P3P1P/4R1K1 b - - 0 26","m":"d8a8 e7e8 a8e8 e1e8","r":441,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"xBYm6","f":"r1R3k1/1p1Q1ppp/1p6/1P5P/p3Pn2/5N2/q4PP1/6K1 b - - 1 26","m":"a8c8 d7c8","r":589,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"xBZuI","f":"r5k1/pp3ppp/3n2q1/2pP1b2/P1B5/1PN1Q2P/5PP1/4R1K1 b - - 2 24","m":"a8e8 e3e8 d6e8 e1e8","r":436,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"xCOKx","f":"3r2k1/2p1qpp1/2p4p/8/2P5/1P6/P4PPP/4R1K1 w - - 0 29","m":"e1e7 d8d1 e7e1 d1e1","r":468,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"xCewc","f":"6k1/p4ppp/3br3/2p5/7B/1P3N2/P2R1PPP/2n2K2 b - - 5 27","m":"d6f4 d2d8 e6e8 d8e8","r":530,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xCntO","f":"2r3k1/5ppp/4p3/8/3P4/3rP3/5PPP/3R2K1 w - - 0 30","m":"d1d3 c8c1 d3d1 c1d1","r":404,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"xCpgl","f":"r1b2Q1k/pppn2pp/8/6q1/3P4/2P5/PP4PP/RN3RK1 b - - 0 18","m":"d7f8 f1f8","r":499,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"xDJGE","f":"6k1/6pp/2pb4/6P1/1p1pP2P/1B1nq3/5RK1/5R2 b - - 9 42","m":"g8h8 f2f8 d6f8 f1f8","r":536,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"xDdPq","f":"6k1/r4ppp/2p1p3/2Pp4/3P1P2/8/5PPP/1R5K b - - 1 24","m":"a7c7 b1b8 c7c8 b8c8","r":400,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"xDkI2","f":"6k1/5ppp/3p4/3q4/1Pr5/P4P2/6PP/3Q3K w - - 0 31","m":"d1d5 c4c1 d5d1 c1d1","r":400,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"xE8U7","f":"2r3k1/1pp1Rppp/1p1p1n2/5r2/3P4/P1P2P2/1P3PK1/4R3 b - - 7 26","m":"f6d5 e7e8 c8e8 e1e8","r":400,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xFkmb","f":"2kr3r/Rpp1npp1/3pbn2/3Pp2p/4P3/2P2NPP/3NqPBK/2B2R2 b - - 0 18","m":"e6d7 a7a8","r":557,"t":"backRankMate mate mateIn1 middlegame oneMove"},{"i":"xFpGg","f":"k1Qr3r/pp5p/2R1p1p1/8/3p4/8/Pq3PPP/2R3K1 b - - 4 25","m":"d8c8 c6c8 h8c8 c1c8","r":417,"t":"backRankMate endgame mate mateIn2 queenRookEndgame short"},{"i":"xFsPG","f":"2b5/7p/5Bpk/2b5/8/PBP2R2/4r1PP/R6K w - - 1 33","m":"a1a2 e2e1 f3f1 e1f1","r":445,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"xGDOz","f":"3r1rk1/2p1bpp1/p6p/1p2N3/4n3/8/PPP2PPP/R1B1R1K1 w - - 0 16","m":"e1e4 d8d1 e4e1 d1e1","r":419,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"xGScZ","f":"6k1/5ppp/p4r2/1BP1r3/1P6/2P1P3/P3K1bP/3RR3 b - - 0 24","m":"a6b5 d1d8 e5e8 d8e8","r":412,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xGVn5","f":"5k2/pp3ppp/8/8/3B4/PR2P3/2r2PPP/6K1 w - - 3 30","m":"d4c3 c2c1 c3e1 c1e1","r":483,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xGc3z","f":"2r4r/3k2pp/R2b4/3Qp3/8/4P3/1P3PPP/R1q3K1 w - - 1 26","m":"a1c1 c8c1 d5d1 c1d1","r":596,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xGoGA","f":"2rR2k1/2r2ppp/p4q2/1p2pP2/4P2P/5N2/2PQ2K1/3R4 b - - 1 32","m":"c8d8 d2d8 f6d8 d1d8","r":507,"t":"backRankMate endgame fork mate mateIn2 short"},{"i":"xH7Qv","f":"1k3b1r/ppprn3/5p2/6p1/1PNp4/3P1PP1/P2BR2P/2R3K1 b - - 1 21","m":"e7d5 e2e8 d7d8 e8d8","r":563,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"xHHfs","f":"6k1/pp3ppp/5n2/2bp4/8/1NP5/P4qPP/RN1Qr2K w - - 2 21","m":"d1e1 f2e1","r":550,"t":"backRankMate hangingPiece mate mateIn1 middlegame oneMove"},{"i":"xHs6b","f":"4r1k1/pp2qp2/7p/1Q3bp1/3p4/P5B1/1PP2PPP/R5K1 w - - 2 23","m":"b5f5 e7e1 a1e1 e8e1","r":463,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"xIYfx","f":"3r2k1/2K2ppp/1p6/p7/2PN4/6rP/PBP5/4R3 b - - 0 26","m":"d8e8 e1e8","r":483,"t":"backRankMate endgame hangingPiece mate mateIn1 oneMove"},{"i":"xIclR","f":"1r1Q2k1/1q3ppp/4bn2/4p3/4P3/5P2/p1B3PP/K2R3R b - - 3 28","m":"b8d8 d1d8 f6e8 d8e8","r":402,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"xIo5v","f":"3r3k/5pnp/3q2p1/Q2N4/4p3/4P3/5PPP/3R2K1 w - - 3 28","m":"d5c3 d6d1 c3d1 d8d1 a5e1 d1e1","r":499,"t":"backRankMate endgame long mate mateIn3"},{"i":"xJKeb","f":"5rk1/3R1ppp/rpp1p3/4P3/8/7P/1PP2PP1/1K1R4 b - - 5 21","m":"f8a8 d7d8 a8d8 d1d8","r":485,"t":"backRankMate endgame mate mateIn2 rookEndgame short"},{"i":"xJVuq","f":"5rk1/p3p1bp/1p4p1/3PP3/2P3Q1/4q3/P4rPP/3RR2K w - - 5 27","m":"e1e3 f2f1 d1f1 f8f1","r":517,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xKM9Y","f":"2Q3k1/5ppp/4b3/p1p5/4p3/qP2P3/P4PPP/2RR2K1 b - - 0 23","m":"e6c8 d1d8","r":480,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"xKRpK","f":"2r3k1/5p2/7p/1N1Rb3/1P4p1/8/5PPP/6K1 w - - 3 29","m":"d5e5 c8c1 e5e1 c1e1","r":457,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xLaxM","f":"8/2R3pk/4p2p/3p4/1q3Np1/6P1/6PP/R3r2K w - - 1 44","m":"a1e1 b4e1","r":431,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"xLfXQ","f":"2rr2k1/p4ppp/4p3/2Pq4/8/Q4R2/PP3PPP/2R3K1 w - - 1 24","m":"b2b4 d5d1 c1d1 d8d1","r":554,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"xLnix","f":"3RR2k/p5pp/1p4b1/5p2/1P3q2/1Br4P/P1P2PP1/6K1 b - - 0 26","m":"g6e8 d8e8","r":494,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"xLt6x","f":"1k3r2/ppp5/3p1P1p/3P4/P3R3/1P5P/2P5/2K5 b - - 0 34","m":"f8f6 e4e8","r":437,"t":"backRankMate endgame master mate mateIn1 oneMove rookEndgame"},{"i":"xM0mn","f":"6k1/3r1pp1/2p1p2p/B1P5/1P6/P1R5/5PPP/6K1 w - - 4 28","m":"a3a4 d7d1","r":446,"t":"backRankMate endgame master mate mateIn1 oneMove"},{"i":"xMY5G","f":"1r4k1/R4ppp/4p3/1N1pP3/5n2/2P5/P5PP/4K3 b - - 0 26","m":"b8b5 a7a8 b5b8 a8b8","r":499,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xMceE","f":"3r3k/1p5p/p2P2p1/2r5/8/5NB1/1b1R1PPP/6K1 w - - 0 27","m":"d2b2 c5c1 f3e1 c1e1","r":585,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xNHct","f":"r1b3k1/1p1n1ppp/4p3/1N6/p1K1Pn1P/P1N5/1P6/3R4 b - - 5 31","m":"d7f6 d1d8 f6e8 d8e8","r":416,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"xNqLf","f":"6k1/4b1pp/3pP3/1p2p3/4Np2/3p4/PPr2PPP/3R2K1 w - - 3 23","m":"d1d3 c2c1 d3d1 c1d1","r":569,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xNwa8","f":"5rk1/4bqpp/8/8/P2B4/1P6/2PQ2PP/4R2K w - - 6 32","m":"d4c3 f7f1 e1f1 f8f1","r":564,"t":"backRankMate endgame mate mateIn2 sacrifice short"},{"i":"xOmB5","f":"8/1r3p2/4p1pp/p1kpb3/3N4/P1P5/5PPP/4R1K1 w - - 0 28","m":"e1e5 b7b1 e5e1 b1e1","r":572,"t":"backRankMate endgame master mate mateIn2 short"},{"i":"xPQDu","f":"r1bQ2k1/1q3ppp/2n2n2/p1p5/1p2PN2/5P2/PPP3PP/2KR1B1R b - - 3 17","m":"c6d8 d1d8 f6e8 d8e8","r":576,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"xPbxk","f":"rn1q3k/ppp2Qpp/8/4p3/3P4/2N1b3/PPP3PP/5R1K b - - 7 18","m":"e3d4 f7f8 d8f8 f1f8","r":594,"t":"backRankMate mate mateIn2 middlegame short"},{"i":"xPkPe","f":"2r4k/5Q2/p4Ppb/1p5p/8/8/PP4PP/7K w - - 1 47","m":"f7g6 c8c1","r":514,"t":"backRankMate endgame mate mateIn1 oneMove"},{"i":"xQMxi","f":"5rk1/p4ppp/1p2p1b1/8/8/4PB2/PPrR1PPP/3R2K1 b - - 3 23","m":"f8c8 d2d8 c8d8 d1d8","r":542,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xQXhq","f":"1r6/2RP4/7p/7k/P2B2p1/8/5PPP/6K1 w - - 2 40","m":"d4f6 b8b1 c7c1 b1c1","r":506,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xRLAr","f":"3r2k1/p4ppp/8/2Q5/3r4/N7/R1P2PPP/6K1 w - - 0 26","m":"a2a1 d4d1 a1d1 d8d1","r":455,"t":"backRankMate endgame mate mateIn2 short"},{"i":"xRTrh","f":"4r1k1/2p2ppp/p1p5/8/2PR4/8/PP3PPP/6K1 w - - 1 25","m":"d4d2 e8e1","r":570,"t":"backRankMate endgame mate mateIn1 oneMove rookEndgame"}]