fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
r1bqk1nr/pppp1ppp/2n5/8/2B1P3/2p2N2/P4PPP/R1BQ1RK1 w kq - 0 9 | Ba3 | Identify any White knight outposts on the board. | None | outposts |
rn1q1rk1/5ppp/pb2pn2/1b2N1B1/QPp1P3/P7/4RPPP/3R2K1 w - - 0 17 | d7b5 | What is the material balance in this position? | Black is up 6 pawns of material | material |
r1b1k2r/2p2ppp/p1ppq3/3p4/3P4/1P2PN2/1B1NBPPP/R2Q1RK1 w kq - 0 15 | b7c6 | Identify any White knight outposts on the board. | a4 | outposts |
6k1/2q2p2/1p1r1np1/1R6/3Pp2p/1Q2P1P1/P4P1P/5BK1 w - - 2 33 | Rb4 | Is the b-file open, semi-open, or closed? | semi-open for White | files |
2r3k1/r2nqpp1/p3b2p/2pp4/8/Q3PN2/PP2BPPP/2R2RK1 w - - 0 18 | Nd4 | Identify any White knight outposts on the board. | None | outposts |
2rq2k1/5pp1/p1rBp2p/3pP3/PRpP1n2/1nP2N1P/1RQ2PPK/8 w - - 6 27 | Rb1 | Is the White king in check? | No | check |
2r5/2P2p2/5Pk1/p7/PpR5/3K4/8/8 w - - 3 66 | Kd4 | Does Black have any passed pawns? | Yes: b4 | structure |
1r4n1/5Nkr/p3pnp1/1p1p3p/b4q1P/2PPB1P1/5PB1/1R2R1K1 w - - 0 32 | Bxf4 | What piece is on d4? | Empty | occupancy |
7k/7p/pq1p4/2P4P/1nb1P1P1/8/1K6/3Q2R1 b - - 0 31 | Nd3+ | Identify any Black knight outposts on the board. | c5, e5 | outposts |
rnbqk2r/pp3ppp/5n2/2pp2B1/3P4/P1b5/1PQ1PPPP/R3KBNR w KQkq - 0 8 | bxc3 | Is the move from e1 to d1 legal? | Yes | legality |
rnbqkbnr/p1pp1ppp/8/1B6/4Pp2/8/PPPP2PP/RNBQK1NR b KQkq - 0 4 | Qh4+ | Are there any open files in this position? | No | files |
r1bq1rk1/1p1n1ppp/p1pbpn2/8/2BP4/2N1PN2/PPQ2PPP/R1B2RK1 w - - 0 10 | a4 | Is the move from d4 to d2 legal? | No | legality |
r1b2rk1/ppR2npp/q7/B2QP1b1/P3pN2/1P4PP/4PP2/5RK1 w - - 5 26 | e6 | Identify any White knight outposts on the board. | d6 | outposts |
r4r2/2q1pNk1/4P3/2pp1p1Q/5P2/pPPn2N1/P5P1/2K2R2 w - - 1 40 | Kb1 | Identify any White knight outposts on the board. | a4 | outposts |
1rb3k1/p2p1pbp/2p3p1/2Bn4/1P2N1PP/q6N/2QKP3/3R1B2 b - - 0 25 | Nxb4 | Is the move from a3 to a4 legal? | Yes | legality |
8/1n3k2/1R6/3P1Bp1/1p1KNbP1/1P6/8/2r5 b - - 6 63 | Rd1+ | What is the material balance in this position? | White is up 1 pawn of material | material |
2rbr1k1/1p1b3p/p2pN1pB/q2Nn2n/4P3/P2B3Q/1PP3PP/4RR1K b - - 4 21 | Bxe6 | Identify any White knight outposts on the board. | d5 | outposts |
8/3b2Bq/8/5k1p/3Q4/8/6K1/8 w - - 2 2 | Qd3+ | Is the Black king in check? | No | check |
1r4k1/1pq2ppp/p1rp1b2/P3p3/1R2P3/1QP2R1P/1P2BPP1/6K1 w - - 7 34 | Bc4 | Is the move from c3 to d8 legal? | No | legality |
r1bqk1nr/pp1p1ppp/3b4/1B2p3/3pP3/2P5/PP3PPP/RNBQ1RK1 b kq - 0 7 | Bc5 | Identify any Black knight outposts on the board. | None | outposts |
r4rk1/p1p2ppp/4p1b1/1N2q3/P2p4/3P3P/1P4P1/R2QK2R w KQ - 0 19 | c5e5 | What is the material balance in this position? | Black is up 2 pawns of material | material |
rnbqk2r/pp1p2pp/4p3/2pP1p1n/2P1P3/2P2PP1/P6P/R1BQKBNR b KQkq - 0 8 | f4 | What piece is on d6? | Empty | occupancy |
7k/2p2Q1p/p2p4/3n3P/3PP1P1/2pK4/1q6/3R2R1 b - - 4 32 | Qb5+ | Is the move from c3 to g4 legal? | No | legality |
8/5p2/1p1B2p1/4p3/2BPPk2/P4P1r/P3KP2/1R6 b - - 0 26 | d3d4 | What is the material balance in this position? | White is up 8 pawns of material | material |
r4rk1/npqnbppp/p2pp3/P6b/2PP4/1QN1BN1P/1P2BPP1/R1R3K1 w - - 3 16 | d5 | Does White have any isolated pawns? | No | structure |
rn4nr/pp4pp/3Qpk2/1N6/8/8/PP3PPP/R5K1 w - - 0 21 | Nc7 | Is the move from d6 to g2 legal? | No | legality |
rn1k1b1r/pp1b2pp/5p2/2P5/5pP1/2N1p3/PPP1P2P/2KR1BNR w - - 0 13 | Bg2 | Is the Black king in check? | No | check |
r6k/pp4bp/8/3n1b2/8/PK4R1/1q5P/6R1 w - - 0 30 | e2b2 | Is the Black king in check? | No | check |
5n2/2p2p2/p2p3k/1p1PpNN1/4P1Q1/P7/1PP2P2/2K5 b - - 4 33 | e7f5 | Is the Black king in check? | Yes | check |
8/2b5/2N5/PpPp1n2/3P1p2/3K1Pk1/8/8 w - - 0 46 | a6 | Is the move from d3 to d5 legal? | No | legality |
2kr4/p1pp1p2/1p2p2p/4Pp2/N1P2R2/8/P5KP/8 b - - 0 28 | d6 | Does White have any passed pawns? | No | structure |
r2q1rk1/1b2bppp/p2p1n2/npp1p1B1/P3P3/2PP1N1P/BP3PP1/RN1Q1RK1 b - - 1 12 | h6 | Is the move from b7 to a5 legal? | No | legality |
r2r2k1/p4pb1/bpn2q1p/3p1np1/8/1NP2N1P/PPBB1PPQ/3RR1K1 w - - 2 21 | Bxf5 | What piece is on c1? | Empty | occupancy |
r3qrk1/p5b1/2b3pp/2Q1np2/4P3/1P2BP2/P5PP/2NRKB1R b K - 0 20 | fxe4 | Is the move from f5 to f3 legal? | No | legality |
8/p7/1p1r1kp1/5p1p/P2P3P/4PnP1/4K3/2R5 w - - 0 47 | Kxf3 | Are there any open files in this position? | Yes: c | files |
r2qk2r/1p1bbppp/p3p3/8/3P4/3B4/PP3PPP/R1BQR1K1 w kq - 1 15 | d5 | What is the material balance in this position? | Equal | material |
6k1/6p1/7p/3b3q/Q2Pn3/P1P2P2/3B3P/R3RNK1 b - - 0 5 | Qxf3 | What is the material balance in this position? | White is up 13 pawns of material | material |
r2qk2r/1p1b1p2/1P2p3/p2pPp1p/nb1N1N2/3PB3/5QPP/1R3RK1 w kq - 2 23 | Nxf5 | What piece is on d4? | White Knight | occupancy |
r1bqkr2/ppppbpQp/3n4/8/P7/8/1PPP1PPP/RNB1R1K1 w q - 1 11 | Nc3 | Is the move from b1 to f7 legal? | No | legality |
2kr3r/4b1p1/3ppn1p/N3p2P/4P1P1/P3Bn2/1PP1K3/R6R w - - 0 20 | Nc6 | Is the a-file open, semi-open, or closed? | semi-open for Black | files |
2rqr1k1/pp3ppp/8/1P1n4/P2p2b1/1QbP1N1P/1B3PP1/R2B1RK1 b - - 0 21 | Be6 | Is the Black king in check? | No | check |
2r3k1/pp3pp1/4Pb1p/3p3Q/3q4/P7/P2K2PP/3R1B1R w - - 0 22 | Ke1 | Does White have any isolated pawns? | Yes: a2, a3, e6 | structure |
6r1/2k5/2n2R2/p2p4/1ppP1P2/2P1PpP1/PP1B2K1/8 w - - 0 33 | e4f3 | What is the material balance in this position? | White is up 2 pawns of material | material |
5k2/1b1q3Q/r5p1/p2p2B1/2pP4/2p1P3/PP4PP/6K1 w - - 4 26 | Qxd7 | Is the move from e3 to d3 legal? | No | legality |
8/8/p5r1/2R5/PP4p1/2K2k2/2P5/8 w - - 4 44 | f6g6 | Identify any Black knight outposts on the board. | f3, h3 | outposts |
r2q1rk1/pp2ppb1/2n2np1/2ppNb1p/3P1B1P/2N1PP2/PPPQ2P1/R3KB1R w KQ - 1 10 | Bb5 | Does Black have any passed pawns? | No | structure |
1r6/3kbp2/p2p1p2/1p2p3/4P1P1/PP5r/2PR3P/1K1R2B1 b - - 4 24 | Rc8 | Is the White king in check? | No | check |
5rk1/1p1q1ppp/1Nr2b2/8/4R3/5P2/PP2nP1P/1K1R1B2 w - - 0 24 | Nxd7 | Is the move from b1 to g3 legal? | No | legality |
2rqr1k1/pR1n1pbp/5np1/2pp4/3PP3/P1N2PN1/2QBB1PP/5RK1 b - - 0 20 | cxd4 | Identify any Black knight outposts on the board. | None | outposts |
1r2r1k1/5ppp/p2pb3/4n3/1P6/P4B1P/3B1PP1/2R1R1K1 w - - 0 30 | Be2 | Does White have any passed pawns? | No | structure |
8/4p3/3k4/3P1bp1/8/K5P1/B7/8 b - - 0 59 | Kc5 | What piece is on a3? | White King | occupancy |
r2q1rk1/pp2n1b1/2ppPn1p/4ppp1/1PP1P3/2N1BB2/P4PPP/R2QR1K1 w - - 0 16 | exf5 | What piece is on d3? | Empty | occupancy |
5rkb/3n3n/bp2N2P/p2pp1p1/3P2P1/2P5/3B1N2/1R2K2R b K - 0 32 | Re8 | Is the White king in check? | No | check |
8/p5K1/6p1/1B1p1k2/4R1N1/2P2p2/5N2/Qr6 w - - 0 1 | Nh3 | Is the move from g7 to f8 legal? | Yes | legality |
3r1rk1/pp3pbp/6p1/2pnn3/4N3/1QPP2P1/PP4NP/R6K w - - 0 18 | Nxc5 | What piece is on b8? | Empty | occupancy |
r2q1rk1/1b1n1ppp/1p1p1n2/p3p3/2PPP3/Q2B1N2/1P1N1PPP/R3R1K1 b - - 0 14 | Re8 | What piece is on f6? | Black Knight | occupancy |
r3n3/2p3rk/2bp1q2/5p1p/1P2pP2/1B2N1PP/4QRRK/8 b - - 1 37 | Qg6 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r1bqr1k1/pp3pp1/2nbpn1p/8/2BP4/2N1BN2/PP1Q1PPP/R3K2R w KQ - 6 12 | O-O-O | Is the Black king in check? | No | check |
r1bq1rk1/1p3ppp/pbn1p3/1N6/2P5/1P4P1/P4PBP/R1BQ1RK1 w - - 0 15 | Nd6 | Does Black have any isolated pawns? | No | structure |
6k1/1p4p1/p1pp3p/8/1P3R2/2P5/P3r1KP/8 w - - 0 36 | e1e2 | Is the Black king in check? | No | check |
5R2/1ppkp3/3pn3/3P4/p1P4p/P1N1P3/1PKB4/8 w - - 1 33 | d8e6 | What is the material balance in this position? | White is up 7 pawns of material | material |
r2qrbk1/1b1n2p1/pp1p1p2/2pPp1p1/4P3/2P1NN2/PPB1QP1P/1K4RR w - - 0 19 | h4 | Is the g-file open, semi-open, or closed? | semi-open for White | files |
r1bqk2r/pppp1Npp/2n2n2/2b1p3/2B1P3/8/PPPP1PPP/RNBQK2R b KQkq - 0 5 | Bxf2+ | Identify any White knight outposts on the board. | None | outposts |
8/p4rkp/8/8/1PP5/8/1P1K3R/8 b - - 0 34 | Rf4 | Is the move from f7 to d7 legal? | Yes | legality |
r2qrbk1/5ppp/4b3/1pppP1NP/8/pPPP2Q1/P2B2P1/2KR1R2 w - - 0 20 | Rf6 | Is the e-file open, semi-open, or closed? | semi-open for Black | files |
r3kb1r/1bpn1pp1/pp1ppq1p/8/3PP3/3B1N2/PPPNQPPP/1K1R3R b kq - 3 10 | Qd8 | Does White have any isolated pawns? | No | structure |
r1bq1rk1/2p1bppp/p1n2n2/1p1pp3/4P3/1BP2N2/PP1P1PPP/RNBQR1K1 w - - 0 9 | exd5 | Identify any White knight outposts on the board. | None | outposts |
r1b2k2/1p2qppB/3r4/p7/3nQ3/P3P3/1P3PPP/R1B1K2R b KQ - 2 18 | Nb3 | What is the material balance in this position? | White is up 2 pawns of material | material |
8/7P/8/4BkP1/5P1K/8/8/7q w - - 1 54 | c6h1 | Is the White king in check? | Yes | check |
r2r4/q3npk1/3pb1pp/1pbNp2P/p3P3/P1P1NP2/BP1Q2P1/1K2R2R b - - 0 23 | g5 | Does White have any isolated pawns? | No | structure |
rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPP2PPP/RNBQKBNR w KQkq - 0 3 | Nd2 | Does White have any isolated pawns? | No | structure |
r1bqk2r/pp1n1ppp/2p1pn2/3p4/2PP4/2NBPN2/PP1Q1PPP/R3K2R b KQkq - 2 8 | dxc4 | Is the Black king in check? | No | check |
1r6/2q1p1kp/p1bp1p2/p4Pp1/PrP1P3/1P1Q1B2/6PP/1R3R1K b - - 0 29 | Qb7 | Is the Black king in check? | No | check |
r2qkb1r/pp3pp1/2n1pn1p/3p4/3P3B/2PB1Q1P/PP3PP1/RN2K2R b KQkq - 1 10 | Be7 | Is the move from e8 to e5 legal? | No | legality |
5k2/5p2/6pp/3pp3/2n1P3/6NP/3q1PP1/5QK1 b - - 1 37 | f5g3 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r3r1k1/p4pp1/2np3p/1p1q4/3P4/1PP2N2/P2Q2PP/4RRK1 b - - 0 17 | a5 | Is the move from e8 to c8 legal? | Yes | legality |
r4rk1/pb2qppp/2p1pn2/8/3PP3/b2B1N2/1B3PPP/2RQ1RK1 w - - 0 18 | e5 | Identify any White knight outposts on the board. | c5 | outposts |
rqr3k1/3Qbp2/p1n1R1p1/1pp5/2P2P2/2N3P1/PP3PB1/R5K1 b - - 0 20 | Ra7 | What is the material balance in this position? | White is up 1 pawn of material | material |
8/p5p1/R6k/8/2B5/1P3nP1/2r5/7K b - - 5 42 | a1a6 | Is the Black king in check? | Yes | check |
8/4kp2/bN2p2p/2B2n2/8/1p2PP2/4r1PP/1R4K1 b - - 4 28 | d4c5 | Is the Black king in check? | Yes | check |
1k6/8/P7/1K6/7p/6p1/6B1/8 w - - 2 62 | Kb6 | Is the move from b5 to b4 legal? | Yes | legality |
8/8/4pk2/5p1p/Bp1Pp2P/4P2K/1p3P2/1R6 w - - 0 37 | a5b4 | What is the material balance in this position? | White is up 6 pawns of material | material |
r4rk1/5pbp/p3p1p1/1p2Pb2/2nR1P2/2N5/PPP1NBPP/2K3R1 b - - 6 23 | g3f2 | What is the material balance in this position? | White is up 1 pawn of material | material |
8/p4rk1/3Q2p1/5q2/P1pPN3/5P1p/1PP2P2/1K6 b - - 1 30 | Qf4 | Is the d-file open, semi-open, or closed? | semi-open for Black | files |
rnb2n1k/pp3Qb1/3pp2p/4P1q1/8/3B4/PBP1K1P1/5R1R w - - 4 22 | exd6 | Is the b-file open, semi-open, or closed? | semi-open for White | files |
r1bq3r/ppp2Qpp/3k4/2bnNP2/2Bn4/8/PPPP1PPP/R1B1K2R w KQ - 4 11 | Qxd5+ | Is the move from a2 to a3 legal? | Yes | legality |
r2qk2r/1ppb1ppp/p1nbpn2/8/2pP4/2N1PNP1/PP2QPBP/R1B2RK1 b kq - 4 9 | b5 | Are there any open files in this position? | No | files |
6k1/5r1p/2p5/p2p1PQ1/3Pr3/2P5/PP6/R4RK1 b - - 0 34 | g2g5 | Is the White king in check? | No | check |
1r4k1/5p1p/3p2p1/Q1pP4/Pp3BP1/1P2r2q/2RN1K2/8 b - - 1 32 | Rbe8 | Does Black have any isolated pawns? | No | structure |
6k1/4pp1p/pn1p2p1/P1pP4/1r2PP2/2N4P/4K1P1/1R6 b - - 0 33 | Nc4 | Is the Black king in check? | No | check |
5b1R/2r1k1p1/p4pP1/1p2pB2/3qNn2/P4P2/1PP5/1K2Q3 b - - 1 42 | Rxc2 | Identify any Black knight outposts on the board. | f4 | outposts |
r4bk1/pp1qpr1p/5pp1/3Pn3/8/1QN1RPB1/PP3P1P/4R1K1 w - - 10 22 | Ne4 | Is the move from f3 to h5 legal? | No | legality |
r1b2k1r/ppqn1pp1/3b1p2/2p5/2PP3p/3B3P/PP2NPP1/R1BQR1K1 w - - 0 13 | Be3 | Identify any Black knight outposts on the board. | None | outposts |
3r1k1r/p7/2Q1p1p1/qRPP2p1/N2b1Pb1/P1NK4/8/R7 b - - 3 33 | Bxc3 | What piece is on h5? | Empty | occupancy |
4Qn1r/p7/3Pp2p/2p5/5q1k/6R1/P4PPP/b5K1 w - - 4 29 | h3 | Does White have any isolated pawns? | Yes: a2, d6 | structure |
r3k3/1pp2pp1/p1pb1qn1/4p3/3PP1p1/8/PPPN1PPr/R1BQR1K1 w q - 0 13 | Qxg4 | Is the move from d1 to e2 legal? | Yes | legality |
8/1kp5/1p1nQ3/p2pNp1p/P6P/2q2P2/6PK/8 b - - 3 34 | Qd4 | Does White have any isolated pawns? | Yes: a4 | structure |
3r4/5k2/1p2bb1p/p1p2pp1/5P2/2P1B1PP/PP6/2N1R1K1 b - - 1 28 | a4 | Is the d-file open, semi-open, or closed? | open | files |
8/6k1/6q1/7P/5b2/1p1B1Pp1/6K1/8 w - - 0 69 | hxg6 | What piece is on h1? | Empty | occupancy |
8/p2r1p2/2R5/1P2kp2/4n3/5BPP/5P2/4K3 b - - 4 44 | f6 | Identify any White knight outposts on the board. | a6, c6, f4, h4 | outposts |
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