fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
1rnqb1k1/5pbp/8/1PpPP3/p4P2/N6P/R3N1B1/1Q4K1 b - - 0 32 | f6 | Is the move from f7 to b4 legal? | No | legality |
3rk2r/1p3pp1/p1p1b2p/2N1P3/P1p2n2/5N1P/1PP2PP1/R4RK1 b k - 0 18 | b6 | Does Black have any isolated pawns? | No | structure |
k7/1Rr4p/Pp2pp2/8/3PP3/4KPP1/7P/1r6 w - - 0 41 | Rxc7 | What piece is on b6? | Black Pawn | occupancy |
8/r4pk1/1pQBn3/2p3Pp/P1Pb2K1/8/P7/8 w - - 0 50 | Kxh5 | Identify any Black knight outposts on the board. | a5, c5, g4 | outposts |
5k2/4pp1n/1p6/4P3/p2N2pP/P2P2K1/1rP5/4R3 b - - 0 32 | Ra2 | Are there any open files in this position? | No | files |
r2q2k1/p2n1ppp/b1B1pn2/8/PBpP4/6P1/1bNNPP1P/3QR1K1 b - - 0 17 | Rb8 | Is the move from b2 to a5 legal? | No | legality |
r4r1k/1Q4p1/p6p/6q1/4p1n1/3p2PB/PP3PK1/R4R2 w - - 3 33 | h4g5 | Identify any Black knight outposts on the board. | d3 | outposts |
1rr5/p3kppp/2p1p3/3pP3/N2P4/1P6/P4PPP/R4K2 b - - 4 19 | c3a4 | What is the material balance in this position? | Black is up 2 pawns of material | material |
3rr1k1/pbq1bp1p/5np1/2Np4/N1p5/1P2PP2/PB2Q1PP/2RR2K1 b - - 1 22 | Bc6 | Does White have any isolated pawns? | No | structure |
rnbqk2r/ppppppbp/5np1/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 1 4 | h4 | Identify any Black knight outposts on the board. | None | outposts |
qnnbbrkr/ppp1ppp1/8/3p3p/3P3P/3N4/PPP1PPP1/QN1BBRKR b KQkq - 1 3 | Nd6 | What is the material balance in this position? | Equal | material |
8/r4k2/2p5/p1Np1PK1/3P4/2n5/8/7R b - - 1 54 | Re7 | Identify any White knight outposts on the board. | e6, g6 | outposts |
2r2rk1/pb1nqppp/3bpn2/2pp4/2P5/1PN1PN2/PBQ1BPPP/2RR2K1 w - - 2 14 | g3 | Identify any White knight outposts on the board. | a4 | outposts |
2r3k1/p6p/6p1/3p1p2/qP2p3/2r1P2P/5PPK/R7 w - - 0 31 | b5a4 | What is the material balance in this position? | Black is up 15 pawns of material | material |
2r3k1/1q2bpp1/p3b2p/1ppPp3/3P2P1/4BQ1P/PPB2PK1/R6R b - - 0 24 | Bxd5 | Are there any open files in this position? | No | files |
2r1r3/pp1n1kp1/1b1P1p2/4p3/4N1P1/PP6/1B2RPK1/2R5 w - - 4 31 | Rec2 | What piece is on b6? | Black Bishop | occupancy |
rnbqkbnr/pppppppp/8/8/5P2/8/PPPPP1PP/RNBQKBNR b KQkq - 0 1 | Nc6 | Does White have any passed pawns? | No | structure |
1q2rbk1/1b3ppp/8/1p1pP1B1/1PnN1P2/r4BP1/7P/1QRR2K1 b - - 1 29 | h6 | Does White have any isolated pawns? | Yes: b4 | structure |
8/2p3pk/5n1p/1q3p2/3P1PPP/4Pp2/5N1R/5NK1 w - - 0 40 | gxf5 | Is the move from f4 to b5 legal? | No | legality |
8/6k1/4p3/4q1Pp/1p6/6PK/2Q5/8 w - - 1 55 | Kh4 | Is the h-file open, semi-open, or closed? | semi-open for White | files |
r4rk1/p1n1p1b1/2ppq1p1/1p4P1/2PP1p2/P1NBP3/1PQ2P2/2KR3R w - - 2 22 | Bxg6 | Identify any White knight outposts on the board. | None | outposts |
r3k1nr/5ppp/1pp2q2/p1b1p3/2B1P3/1QN5/PPP2PPP/2KR1R2 w kq - 0 13 | a4 | What piece is on g5? | Empty | occupancy |
3q3k/2p4p/p2p4/7P/1nbPP1P1/K7/2p5/2QR2R1 b - - 0 28 | c5 | Is the Black king in check? | No | check |
2kr3r/pp1n1ppp/1n2q3/2b1P3/2p2B2/2N2N2/PP2Q1PP/R4RK1 w - - 2 16 | f8c5 | Is the Black king in check? | No | check |
5k2/5p2/5P2/p5PP/P1Pp1p2/1P6/6bK/8 w - - 0 42 | Kxg2 | Is the move from h2 to g1 legal? | Yes | legality |
r1q3k1/1b2b1p1/p1p1pr1p/1p6/1Pp1PP2/P1N5/4B1PP/2QRR2K b - - 1 20 | c2c1 | Identify any White knight outposts on the board. | e5 | outposts |
5r2/ppk2P2/6n1/3p4/4p3/PRp5/2P5/3K1B2 b - - 1 40 | Rxf7 | Identify any Black knight outposts on the board. | c4, e4, f3 | outposts |
1rbqr1k1/4bpp1/3p2n1/1ppP3p/4PPnP/5NP1/1PB4N/R1BQR1K1 w - - 0 22 | f5 | Is the White king in check? | No | check |
r1bqkb1r/pp1n1ppp/2n1p3/2ppP3/3P1P2/8/PPP1N1PP/R1BQKBNR w KQkq - 2 7 | c3 | Is the a-file open, semi-open, or closed? | closed | files |
8/5p2/6kp/5R2/4PPP1/7K/8/5r2 b - - 6 57 | f6 | Is the h-file open, semi-open, or closed? | semi-open for White | files |
2b2rk1/b4ppp/5r2/pp6/3PP3/2P1K1p1/BPR5/R1BQ2Nq w - - 4 31 | Bd5 | Does White have any passed pawns? | Yes: d4 | structure |
8/5k1n/bpr2n1P/p2p2p1/3P2P1/4R2R/3B1N2/4K3 w - - 5 38 | Re5 | Is the White king in check? | No | check |
r4rk1/5pb1/1qNp1np1/pp1Pp2p/8/2PB1P2/PP1Q2PP/1K1R3R w - - 1 19 | Bc2 | What piece is on h8? | Empty | occupancy |
8/8/5N1P/4p1n1/p3P3/8/k4PP1/6K1 w - - 1 4 | f4 | Does Black have any passed pawns? | Yes: a4 | structure |
r3r1k1/ppq1ppbp/2p2np1/NP6/P1PPpP2/4P3/1B4PP/R3QRK1 w - - 1 18 | Rb1 | What is the material balance in this position? | Equal | material |
2r1r3/b1q2ppk/P1p1b2p/1p1pP2N/3Pn3/4BN1P/1P3PP1/R1Q1R1K1 w - - 0 23 | b4 | Is the move from f2 to c4 legal? | No | legality |
8/1p6/4p3/1k6/1B6/1P6/2K5/1n6 w - - 10 8 | Bf8 | Is the move from b3 to g8 legal? | No | legality |
r1b1k2r/p2n1pb1/2N1pq1p/1pp5/2pP3p/2N3P1/PP2QP1P/R3KB1R w KQkq - 2 14 | Bg2 | What piece is on h5? | Empty | occupancy |
6k1/8/4p2p/2p2n1P/8/3p4/p1r5/R4K2 b - - 1 37 | g1f1 | Identify any Black knight outposts on the board. | b4, d4, d5, f5 | outposts |
5rk1/1r3pp1/3pbn1p/6q1/3PPR2/6NP/3Q2PK/3B1R2 b - - 4 29 | Ra8 | What piece is on d5? | Empty | occupancy |
8/1pB3p1/p3k3/P6R/4PP1P/8/5rK1/4b3 w - - 7 46 | Kg1 | What is the material balance in this position? | White is up 1 pawn of material | material |
2k4R/8/2p4P/1p6/1P6/3p2pK/6P1/2r5 b - - 3 44 | Kd7 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r4rk1/pb2q1bp/1p4p1/3pPp2/P2P1R2/1pP1P2Q/1P1B2NP/R5K1 b - - 5 25 | Ba6 | What piece is on f5? | Black Pawn | occupancy |
r2q1rk1/1ppbnpp1/p1np1b1p/4p3/3PP3/2P1BN2/PPBN1PPP/R2Q1RK1 w - - 4 11 | d5 | What piece is on g6? | Empty | occupancy |
8/p1r1ppk1/6p1/3P1b2/1r1b1P2/2N3P1/BP5R/2R1K3 w - - 6 30 | Re2 | Does Black have any isolated pawns? | Yes: a7 | structure |
r1b1k1nr/p1pp1ppp/1bp5/4q3/4P3/2P2Q2/PP1P1PPP/RNB2RK1 b kq - 2 8 | e1g1 | What is the material balance in this position? | Black is up 2 pawns of material | material |
2r5/4k2p/6p1/4bpP1/7P/1B3K2/P3N3/8 b - - 0 35 | Rb8 | What piece is on c8? | Black Rook | occupancy |
r3k2r/4Nppp/p2pb3/4p1Pn/1p2P2P/5P2/qPPQ4/2KR1B1R w kq - 0 18 | Qxb4 | Does White have any passed pawns? | No | structure |
2r1r1k1/1b4qp/p3n1p1/Q1P2p2/8/1N2p2P/P3BPP1/1R1R2K1 w - - 0 28 | fxe3 | What piece is on d7? | Empty | occupancy |
2Q5/6pk/5p1p/1b2pP2/1p2P3/1P4P1/2K4P/q2N4 b - - 12 42 | Qd4 | What piece is on d1? | White Knight | occupancy |
r1b1kn1r/pp2bp2/2p2n1p/4q1p1/4P3/1PN5/PBPQBPPP/R2R2K1 w kq - 0 13 | Nd5 | What piece is on c7? | Empty | occupancy |
r6r/pb2n1p1/6kp/1P1n4/1bp1N3/6P1/1P1BPPBP/R2R2K1 b - - 3 19 | Rhd8 | What is the material balance in this position? | Black is up 1 pawn of material | material |
7k/pp1r2pp/1bnpq3/3Npr2/8/P1PQ1N1P/1P3PP1/3R1RK1 w - - 0 21 | Nd2 | Does Black have any passed pawns? | No | structure |
8/kp6/6p1/p2pPn2/3P1P2/PbPR4/2q2Q2/2B1K3 b - - 2 46 | Qxc1+ | Does Black have any passed pawns? | No | structure |
rnbqk2r/ppp2ppp/3p3n/4p2Q/2B1P3/2P5/P1PP1PPP/R1B1K1NR w KQkq - 0 6 | h3 | Is the move from c1 to b2 legal? | Yes | legality |
5r1k/4R3/p1pp4/3p1b2/3q1P2/6QP/P2B2P1/7K w - - 6 40 | Bc3 | Is the c-file open, semi-open, or closed? | semi-open for White | files |
2k2qnr/7p/1pP2p2/4p1p1/4P3/2N2N2/PP3PPP/R2rK2R w KQ - 0 16 | d8d1 | Is the White king in check? | Yes | check |
r1bqr1k1/1p1n1pbp/p5p1/2pPn3/P4B2/2N2N2/1P2B1PP/R2Q1RK1 w - - 2 15 | d6 | Is the c-file open, semi-open, or closed? | semi-open for White | files |
4k2r/n4pbp/3pb3/3Np3/PP2p3/2P5/5PPP/R3K2R w KQk - 1 19 | c4 | What piece is on f8? | Empty | occupancy |
2rr2k1/1q2bppp/1p1np3/4Q3/2P1N3/2N3P1/P3PP1P/2RR2K1 b - - 3 26 | Nxc4 | Is the c-file open, semi-open, or closed? | semi-open for Black | files |
r3kb1r/pp1q1pp1/2p1pn1p/5b2/P1QP4/2N2P2/1P2P1PP/R1B1KB1R b KQkq - 0 10 | a5 | Is the d-file open, semi-open, or closed? | semi-open for Black | files |
r1bqkbnr/pppp1ppp/2n5/4P3/8/8/PPP1PPPP/RNBQKBNR w KQkq - 1 3 | b8c6 | What is the material balance in this position? | White is up 1 pawn of material | material |
r4rk1/p3qpp1/1p3n1p/2p5/8/2QRPN1P/PP3PP1/2R3K1 b - - 2 19 | Rad8 | Identify any Black knight outposts on the board. | None | outposts |
r1bq1rk1/3nbppp/pp3n2/2p1p3/P3P3/2P2N2/1P3PPP/RNBQRBK1 w - - 0 2 | c4 | What piece is on h7? | Black Pawn | occupancy |
3qN1k1/p4ppp/1p2p3/8/PbRN4/6BP/4QPP1/4R1K1 b - - 0 33 | Bxe1 | Does Black have any passed pawns? | No | structure |
r1b1nrk1/ppp2ppp/1b1q4/3N4/B2n4/3N4/PPPP1PPP/R1BQK2R w KQ - 0 11 | Ne3 | What is the material balance in this position? | White is up 1 pawn of material | material |
2r4Q/p3k2R/1p1p2p1/3PP3/2b1P1P1/P5N1/1Pq2rB1/K7 b - - 4 35 | h1h7 | Is the White king in check? | No | check |
r1bq1rk1/pp2bppp/2nppn2/6B1/3NP3/2N5/PPPQ1PPP/2KR1B1R w - - 4 9 | f4 | Is the move from d4 to f3 legal? | Yes | legality |
8/1p6/4bk2/8/pP2PP2/P3R1P1/1r6/4K3 b - - 4 37 | b5 | Does White have any passed pawns? | Yes: e4, f4, g3 | structure |
1rr2q1k/8/2p2p2/pPb1pP1p/P1BpN2P/3P4/2P1KP2/6RR w - - 0 34 | b6 | Does White have any isolated pawns? | Yes: f2, f5, h4 | structure |
1n1qkbnr/p4p1p/2Bp2p1/4p3/2P5/2P3P1/P1bNPP1P/R1B1K2R b KQk - 1 12 | a8c6 | Is the Black king in check? | Yes | check |
5r1k/p5pp/4P3/2Q5/2N3P1/P3B1KP/3R4/5q2 b - - 0 37 | Rf3+ | Is the move from g7 to a8 legal? | No | legality |
3rrbk1/1pqb1ppp/p1n1pn2/2PpN3/3P4/PP1B4/1B1N1PPP/R2QR1K1 w - - 1 15 | b4 | What is the material balance in this position? | Equal | material |
r4rk1/pp1qbppp/2np1n2/2p1p3/2P1P3/P1NP1N2/1P3PPP/1RBQK2R w K - 3 10 | b4 | Identify any White knight outposts on the board. | None | outposts |
r4rk1/1p1b2p1/p3pq2/3pp2Q/1n1P4/2N4R/PP5P/6RK w - - 2 26 | dxe5 | Does White have any isolated pawns? | Yes: d4, h2 | structure |
6r1/2p2q1k/3pp1np/Np2p3/1P2P2P/2P2PP1/5Q1K/4R3 w - - 13 55 | Nb3 | What piece is on g7? | Empty | occupancy |
r7/ppp1r1pk/5p2/6p1/1P6/P4P2/B4PKP/R7 b - - 0 28 | b2b4 | What is the material balance in this position? | Black is up 3 pawns of material | material |
r1bq1r2/1p3nkp/p2p2p1/3N1p2/3Q1P2/6P1/P4PBP/R4RK1 b - - 3 19 | Kh6 | Is the Black king in check? | Yes | check |
8/2kb1ppp/8/p1p1p3/P1PrP3/3BKP2/6PP/1R6 b - - 5 31 | f5 | Is the move from f7 to f6 legal? | Yes | legality |
8/2p1k2Q/1p3q2/2pP4/p1P5/P5P1/5P1P/6K1 b - - 2 44 | h5h7 | Is the Black king in check? | Yes | check |
4Q1k1/1p4p1/p6p/8/P1P1npP1/1P5P/2K5/4q3 b - - 0 41 | Kh7 | Is the Black king in check? | Yes | check |
8/p7/8/2p5/4k1p1/6P1/PP3K2/8 b - - 2 51 | Kd3 | What piece is on a7? | Black Pawn | occupancy |
4rrk1/pb1qnpb1/1p4pp/2p1n3/3pPNP1/P1NP2QP/1PP2RB1/2B2R1K w - - 0 24 | Ncd5 | What is the material balance in this position? | Equal | material |
r1r3k1/5pp1/4p2p/1p2P2q/3Q2b1/2P5/3R1PBP/1R4K1 w - - 0 28 | Bxa8 | Is the move from d4 to g4 legal? | Yes | legality |
r2qnrk1/4bp1p/5n2/3pp3/ppb1P3/4B1N1/PPPQ3P/1KNR1B1R b - - 1 20 | Bxf1 | Identify any Black knight outposts on the board. | e4 | outposts |
r2qkb1r/pp3ppp/1n6/8/3n4/1QN2P2/PP3P1P/2KR1B1R w kq - 0 13 | Bb5+ | What piece is on g3? | Empty | occupancy |
r2qkb1r/pp2pppp/2p2nb1/8/4PBP1/2Np1N1P/PPP2P2/R2QK2R w KQkq - 0 10 | Qxd3 | Are there any open files in this position? | No | files |
5q1k/pp4pp/4R3/8/B1P3n1/P6P/1P3PK1/8 w - - 0 32 | hxg4 | What is the material balance in this position? | Black is up 3 pawns of material | material |
1r4k1/3q3p/3P1QpB/4P1K1/6P1/pp6/1P6/8 w - - 0 51 | e6 | What piece is on h7? | Black Pawn | occupancy |
r1b1k2r/p3n3/1Pn1p2p/q2pPp1P/P4Pp1/2P3Q1/2P1N1P1/R1B1KB1R b KQkq - 0 15 | axb6 | Are there any open files in this position? | No | files |
r3r1k1/pp1bq2p/4Np2/n2P1PB1/8/3B4/P5PP/Q4RK1 b - - 0 22 | Bxe6 | Is the White king in check? | No | check |
rnb2bnr/p3k1pp/p7/5p2/8/1P2Q3/1B1P1PPP/RN2K1NR b KQ - 2 14 | d3e3 | Is the White king in check? | No | check |
4r1k1/1p1b3p/p2B2p1/P1p5/3nR3/2N2P2/1P3PK1/8 b - - 2 29 | Nb3 | What piece is on b3? | Empty | occupancy |
r2r4/4R1bk/1p2Nppp/p2p4/Pn1P1P2/2B3PP/1P4K1/5B2 b - - 1 32 | Rg8 | Is the move from g7 to e3 legal? | No | legality |
1r2r1k1/2q2ppp/2p2n2/p2p4/1P2b3/2P1N2P/P4PP1/R2QRBK1 w - - 0 24 | a3 | Is the move from a2 to a4 legal? | Yes | legality |
r4k2/1N2bppp/r1p1p3/8/p1P1nB2/3R2P1/P3PP1P/1R4K1 w - - 6 23 | f3 | Identify any White knight outposts on the board. | None | outposts |
r3r1k1/1pq2pp1/2ppbnnp/p3pN2/3PP3/2P2N2/PPBQ1PPP/R3R1K1 b - - 3 17 | Rad8 | Is the d-file open, semi-open, or closed? | closed | files |
8/p2rk2R/2R2p2/P1p1n3/4p2P/5pP1/5P1K/8 b - - 0 35 | h8h7 | Is the Black king in check? | Yes | check |
rn1qkbnr/pp3ppp/2p1p3/3p4/4P3/2N2Q1P/PPPP1PP1/R1B1KB1R w KQkq - 0 6 | Be2 | Are there any open files in this position? | No | files |
r1b3nr/ppp1bkpp/6n1/8/3QP3/2N5/PP4PP/R1B1K1NR w KQ - 3 12 | f4g6 | What is the material balance in this position? | White is up 6 pawns of material | material |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.