fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
2kr3r/1p3p2/p1nBp3/3nP3/3q1PP1/3B1Q1P/5K2/1R5R w - - 0 36 | Kg3 | Identify any White knight outposts on the board. | h5 | outposts |
r3k2r/4qp1p/p1R1bp2/1p2p3/4P2P/Q4R2/P3BPP1/5K2 w kq - 4 22 | Bxb5 | Is the move from a3 to b6 legal? | No | legality |
r1b3k1/1p3rp1/4pp2/q7/2QPNR1P/1P3N2/1KP2P2/R7 b - - 0 30 | Qxa1# | What piece is on e6? | Black Pawn | occupancy |
r4rk1/2pn1ppp/1p2pq2/p1nb4/8/1P1PPNP1/P1Q1NPBP/R4RK1 w - - 0 16 | Nf4 | Is the move from g3 to f8 legal? | No | legality |
2bq1rnk/Br5p/3Pnb2/4pB2/1pP5/1P5P/1N1Q1PP1/R2R2K1 b - - 0 29 | Rg7 | Identify any White knight outposts on the board. | b5 | outposts |
r1bqr1k1/pppn1ppp/3b1n2/3p2B1/3P4/3B1N1P/PPP2PP1/RN1Q1RK1 w - - 7 9 | Nc3 | What is the material balance in this position? | Equal | material |
4kbQ1/p1r5/1p3p2/2q1n3/8/P2R4/5PPP/3R2K1 w - - 13 33 | Qe6+ | Identify any Black knight outposts on the board. | a5, c5 | outposts |
4r2k/2p2q1p/5p2/3pr3/8/1P2bQN1/P1P3PP/3RRK2 w - - 0 4 | Nf5 | Is the d-file open, semi-open, or closed? | semi-open for White | files |
8/8/4k3/1N1p3p/p1nP4/P1P2KP1/8/8 w - - 3 62 | Ke2 | Identify any Black knight outposts on the board. | g4 | outposts |
r4r1k/pp1q2b1/3p2p1/2p1n1p1/P1N1P1P1/2P4P/BP1Q2K1/R4R2 b - - 3 24 | Rf4 | Are there any open files in this position? | Yes: f | files |
2r3k1/q4pp1/1p1np2p/2n5/P7/3NPBP1/5P1P/1QR3K1 w - - 3 31 | Ne5 | What is the material balance in this position? | Equal | material |
3b4/8/p2k4/2p3pp/2PpP3/5K1P/PN4P1/8 w - - 40 95 | Nd1 | Does Black have any isolated pawns? | Yes: a6 | structure |
1krb4/pPr5/P2P1p2/3P2q1/7p/1R5P/2R3PK/6B1 w - - 1 36 | d7 | Does Black have any isolated pawns? | Yes: a7, f6, h4 | structure |
r3k2r/pb2bppp/2p1pn2/q7/1P1P4/p2BPN2/5PPP/R1BQ1RK1 b kq - 0 15 | Bxb4 | Are there any open files in this position? | No | files |
8/4kp2/1p2p3/p1b1Np1p/P4P2/1P1KP1PP/8/8 b - - 0 36 | f6 | Identify any White knight outposts on the board. | h4 | outposts |
r3r1k1/ppp2ppp/3b4/3p1q2/1n1P1N2/1Q2B3/PPP2PPP/R3R1K1 w - - 7 16 | Rac1 | Does Black have any passed pawns? | No | structure |
r6r/1p1k1pp1/1qb4n/3pP1Qp/p2pP3/P2B4/1P4PP/2R2R1K w - - 0 21 | e6+ | Is the White king in check? | No | check |
r1bqkb1r/p3pp1p/2pp2p1/4P2n/2B3P1/2N5/PPP2P1P/R1BQK2R b KQkq - 0 9 | Ng7 | Does White have any isolated pawns? | No | structure |
rnbqk1nr/pp3ppp/4p3/2PpP3/1b6/2N5/PPP2PPP/R1BQKBNR b KQkq - 0 5 | d4c5 | What is the material balance in this position? | White is up 1 pawn of material | material |
8/2qbn1k1/1p2ppp1/7p/1P1N3P/6P1/P2Q1PB1/6K1 w - - 3 41 | b5 | Is the White king in check? | No | check |
3q1brk/r4pp1/1p2p2p/p3p3/PnPP1PN1/7R/4Q1PP/1B3R1K w - - 0 27 | Qxe5 | Are there any open files in this position? | No | files |
2kb1r2/1pp3q1/p2p4/P3P3/1P1N3p/3P1P1Q/7P/R6K b - - 1 26 | f1h3 | Is the White king in check? | No | check |
rnbqk1nr/pp3ppp/2p1p3/b7/3P4/P1N2p2/1PPBQ1PP/R3KBNR w KQkq - 0 8 | Nxf3 | What piece is on e1? | White King | occupancy |
2kr1b1r/1p2qppp/p1n2n2/3p2B1/8/2PB3P/PP1NQPP1/R3K2R b KQ - 1 14 | g6 | Identify any White knight outposts on the board. | d4 | outposts |
r3k2r/p1q1npp1/np2p2p/2ppP2P/P2P4/2P2N2/2P1QPP1/R1B1K2R b KQkq - 1 12 | c4 | Identify any White knight outposts on the board. | None | outposts |
6k1/3q4/1Q3n1p/pp3Pp1/8/1P1p2P1/P3r2P/R2R2K1 w - - 3 31 | Re1 | Is the move from d1 to g2 legal? | No | legality |
4R3/5Qpk/8/2q5/6p1/6P1/5P1P/6K1 b - - 0 41 | a2f7 | What is the material balance in this position? | White is up 6 pawns of material | material |
r5nr/2pqk1N1/p2b1p1p/2p5/3pP3/7Q/PPP2PPP/R1B1R1K1 w - - 0 15 | h7h6 | What is the material balance in this position? | White is up 1 pawn of material | material |
r1bqk2r/pp1p1ppp/2n1pn2/8/1b1NP3/2N1B3/PPP2PPP/R2QKB1R w KQkq - 5 7 | f3 | Is the White king in check? | No | check |
4k3/8/8/2Q5/3PP3/1K6/2P5/3q4 w - - 9 43 | e5 | Does White have any isolated pawns? | No | structure |
r4rk1/3b1p1p/1q3npQ/pp1P4/4p3/1P2NP2/1PP1N1PP/R2R2K1 w - - 0 20 | Nd4 | Identify any Black knight outposts on the board. | None | outposts |
r3k2r/pp1n1pp1/1qn1p3/1Nb1P1Bp/P6P/1P1Q3N/5PP1/R4RK1 b kq - 0 17 | Ncxe5 | What piece is on a7? | Black Pawn | occupancy |
3rr1k1/pp3ppp/2p2b2/5b1P/5P1R/1P2N3/P1P1KQP1/1RB2Bq1 b - - 4 21 | Bxh4 | Identify any Black knight outposts on the board. | None | outposts |
r4rk1/p1p1b1pp/2R5/2Bnp3/N5P1/3P1P1q/PP3P2/4QRK1 b - - 0 19 | Nf4 | What piece is on d2? | Empty | occupancy |
r3kbnr/ppqnppp1/2p3p1/8/3P4/5NN1/PPPB1PPP/R2QK2R w KQkq - 0 10 | Qe2 | Is the move from a2 to b7 legal? | No | legality |
5R2/8/8/8/6rp/8/4K1k1/8 w - - 5 80 | Rf2+ | Does Black have any passed pawns? | Yes: h4 | structure |
3Q4/pbP1rk2/4p1q1/7p/5p1P/3PR1P1/5P2/4R1K1 w - - 0 44 | f5f4 | What is the material balance in this position? | White is up 3 pawns of material | material |
6rk/R3R1p1/6Bp/p6P/5K2/8/8/2r5 w - - 3 40 | Rxa5 | Identify any Black knight outposts on the board. | b4 | outposts |
r1bqr1k1/ppp2ppp/2n5/8/1b2N3/5N1P/PPPBBPP1/R2Q1RK1 b - - 0 13 | c3e4 | What is the material balance in this position? | White is up 3 pawns of material | material |
5k1r/p1N1pp1p/6p1/2p1P3/n7/B4P2/P1b3PP/3R2K1 w - - 2 23 | Rd7 | Is the Black king in check? | No | check |
1k6/1bp4p/pq3p2/5Qp1/2p1pP2/2P1N3/PP5P/3R2K1 b - - 0 29 | Qxe3+ | Does Black have any isolated pawns? | Yes: a6, c4, c7 | structure |
b5k1/p1r3p1/7p/2p2P2/3rq3/R3N1PK/PP3R1P/2Q5 b - - 3 34 | Qe8 | Is the c-file open, semi-open, or closed? | semi-open for White | files |
r4rk1/6p1/p4n1p/1p1Ppq2/4n3/2P4P/P1B2PP1/R2QR1K1 w - - 0 26 | f3 | Does White have any passed pawns? | Yes: d5 | structure |
8/8/8/4k3/6P1/3R1N2/5PK1/3r4 b - - 8 52 | d2f3 | Is the Black king in check? | Yes | check |
rnbqk2r/pp2ppbp/3p1np1/2pP4/2P4P/2N5/PP2PPP1/R1BQKBNR w KQkq - 0 6 | e4 | Is the c-file open, semi-open, or closed? | closed | files |
1qk5/p1r2p2/6r1/R2BB3/1pp5/6P1/1P3P1P/5RK1 b - - 2 28 | Qb6 | Is the h-file open, semi-open, or closed? | semi-open for Black | files |
3r1rk1/pB3p2/1p1P1qp1/2p1pp2/2P5/P1P5/R4P2/3QK2R b K - 0 23 | Rxd6 | Is the e-file open, semi-open, or closed? | semi-open for White | files |
r4b1r/pppk2p1/3qb3/2Npp1Pn/8/3PBQ2/PPP3PP/4RRK1 b - - 2 16 | Qxc5 | What piece is on g6? | Empty | occupancy |
r1b3k1/pp1n3p/2pbp2r/3pNpp1/2PPP3/1P1N2P1/P1Q1PKBq/R1B2R2 b - - 1 18 | Rh3 | Is the move from h2 to b5 legal? | No | legality |
2rq1b2/pp1b1pk1/3p1N2/2r2pPp/4P3/1B1Q4/PPP1N3/1K1R4 w - - 2 28 | Qh3 | What piece is on h5? | Black Pawn | occupancy |
1k6/1pr4p/4p3/5pb1/2q5/2p2P2/P1QRRNPP/5K2 b - - 0 34 | cxd2 | Does Black have any isolated pawns? | Yes: h7 | structure |
rnbqkb1r/ppp2ppp/8/3p4/2NPn3/8/PPP2PPP/RNBQKB1R w KQkq - 0 6 | Ne3 | Is the e-file open, semi-open, or closed? | open | files |
r2q2k1/pbpn2pp/1p1pP1r1/5p2/1PP1n3/P2QPN2/1B2BPPP/R4RK1 b - - 0 14 | Nf8 | Are there any open files in this position? | No | files |
6q1/pk1r4/1p1b1B2/2P3P1/8/2QpP3/P4P2/1K4R1 b - - 0 28 | Bxc5 | What piece is on b1? | White King | occupancy |
8/4B3/p5KP/1p6/1P6/6p1/P4k2/8 w - - 1 47 | g2f2 | What is the material balance in this position? | White is up 3 pawns of material | material |
2kr1bnr/ppp2ppp/2np4/8/1P1PPB1q/P1N1K3/2P1B1PP/R2Q3R b - - 0 13 | g5 | What piece is on h1? | White Rook | occupancy |
r2q1rk1/3bbppp/p3pn2/2N5/8/3BP2P/1BQ2PP1/R2R2K1 b - - 6 18 | Kh8 | Is the White king in check? | No | check |
r6N/1p1kb2p/2ppB2p/p4P2/4P1P1/6K1/PBn5/R7 b - - 1 22 | f7e6 | Is the Black king in check? | Yes | check |
3rb1k1/1B3pp1/2p1p2n/2P1P2p/r3R2P/1N3PP1/P7/R5K1 b - - 2 29 | Rxe4 | Does White have any isolated pawns? | Yes: a2, c5 | structure |
2q4r/pp1kppbp/5np1/4B3/2r4P/1NN2P2/PPP1Q1P1/2K4R w - - 0 20 | Nb5 | What piece is on c2? | White Pawn | occupancy |
1r1r2k1/1q1nb1pp/3pp3/1p6/1Q3Bn1/1PN2P1P/P3P1K1/2RR4 w - - 0 24 | hxg4 | What is the material balance in this position? | Black is up 3 pawns of material | material |
8/k1K3q1/3Q4/P7/1P6/8/8/8 w - - 5 6 | Qd7 | Is the move from b4 to e5 legal? | No | legality |
rn1r2k1/1p2bppp/8/N1P1pb2/pP4n1/2P1B3/PK1N1PPP/R4B1R b - - 1 15 | Nxe3 | What piece is on e7? | Black Bishop | occupancy |
2b1k3/6Rp/4N3/p4P2/8/8/PPr4P/6K1 b - - 0 32 | Bxe6 | Does White have any isolated pawns? | Yes: f5, h2 | structure |
3qk2r/3b1ppp/Q3p3/3pP3/1n3P2/4BN2/P5PP/5RK1 w k - 1 20 | Qd6 | Is the move from a2 to a5 legal? | No | legality |
2r1q1k1/1b3r1p/p6B/2bNQp2/1p6/8/PPP3PP/3R3K w - - 0 28 | Qg3+ | What piece is on c7? | Empty | occupancy |
R7/5p1k/P6p/8/3p3P/r7/4PPK1/8 b - - 0 35 | d3 | Is the move from a3 to c3 legal? | Yes | legality |
2r1r1k1/5p2/3q3p/3nN1p1/P7/4R2P/5PP1/3QR1K1 b - - 2 31 | Qc5 | Does White have any passed pawns? | Yes: a4 | structure |
r1b5/1pk1r1np/1ppR1np1/8/PPP1p3/2N1NPPB/5K1P/3R4 b - - 0 27 | Nge8 | Does Black have any isolated pawns? | Yes: e4 | structure |
1k2Q3/8/1qP3p1/p7/P2n4/8/6K1/8 b - - 6 68 | d7e8 | Is the Black king in check? | Yes | check |
r1bq1r2/1p5k/p2p1nnb/P2Pp1pp/1PN1Pp2/5P2/4BBPP/R2QNRK1 b - - 3 20 | g4 | Is the move from f8 to c7 legal? | No | legality |
3r3k/r2n2p1/p3R1Bp/2pq4/3p4/7Q/PP4PP/5RK1 w - - 6 30 | Re7 | Is the b-file open, semi-open, or closed? | semi-open for Black | files |
Q4b1r/2k1pppp/2pr1n2/5q2/1pPP4/6Rb/PB1NNP1P/R3K3 b Q - 4 16 | Bg4 | What piece is on d2? | White Knight | occupancy |
r2q1rk1/4bppp/p3p3/1pnb4/8/5NP1/PP1BPPBP/RQ1R2K1 w - - 0 17 | Be3 | Identify any White knight outposts on the board. | None | outposts |
1R6/p7/3p3p/3P2nk/P1Pr2p1/4N3/5PKP/8 b - - 0 36 | Rf4 | Does White have any isolated pawns? | Yes: a4, f2, h2 | structure |
3r2k1/pbq2p1p/1pp2Rp1/4p3/2P1P3/5NP1/PPQ2P1P/3N2K1 b - - 0 19 | Qe7 | Is the move from c7 to d8 legal? | No | legality |
2R3k1/4b2p/p2p1p1p/3Pp3/8/5RPP/Pr3PK1/8 b - - 5 32 | c4c8 | Is the Black king in check? | Yes | check |
3b4/p1r3pp/3Rpk2/2p5/2N5/5P2/PP2K1PP/8 b - - 6 7 | Ke7 | Is the e-file open, semi-open, or closed? | semi-open for White | files |
4k2r/2q1bpp1/1r1p1n1p/p1p1p3/2P1P3/1PP1Q2P/P2N1PP1/R1B1K2R b KQk - 5 18 | O-O | Identify any Black knight outposts on the board. | None | outposts |
r5k1/3q2pp/p1p2r2/1pBp4/5n2/1BP2PQ1/PP5P/R4N1K b - - 4 23 | Nd3 | What is the material balance in this position? | Equal | material |
1n1r2k1/2R2pp1/1p5p/p2p4/1P1P3P/P4NK1/5P2/8 w - - 0 28 | b5 | Identify any Black knight outposts on the board. | None | outposts |
3rqrk1/p6p/n1p1p1p1/2p1Np2/P7/2Q3P1/4PP1P/1R3RK1 w - - 0 21 | Rb7 | Identify any White knight outposts on the board. | None | outposts |
r2q1rk1/1bp1bppp/p1n1p1n1/1p2P3/P2P4/1BP2N2/5PPP/RNBQR1K1 w - - 1 13 | c8b7 | Identify any Black knight outposts on the board. | a4 | outposts |
2bq1rk1/3n1p1p/6p1/4P3/1p1QnP1P/1P6/N1p3P1/1N1RKB1R b K - 1 24 | cxd1=Q+ | Does Black have any passed pawns? | Yes: c2 | structure |
r1bq1k1r/1p3ppB/p3pb2/2nN1N2/6p1/6Q1/PPP3PP/2KRR3 w - - 2 20 | Nxf6 | Identify any White knight outposts on the board. | None | outposts |
2kr3r/ppp1ppn1/6q1/1P6/8/P1NP1R2/2PQ2KP/1R6 w - - 1 22 | c6g6 | Is the White king in check? | Yes | check |
5r1k/2p1r1bp/ppq1P3/2pb2Np/P2p4/1P1P1N1Q/2P1R1P1/4R1K1 b - - 0 37 | Bxf3 | Is the move from e7 to f7 legal? | Yes | legality |
r4k1r/1b3pb1/1p1NNnpp/8/3P4/8/PPP2PPP/1R1Q1RK1 b - - 0 19 | g5e6 | Is the Black king in check? | Yes | check |
r3k2r/p2b1p1p/1p3qpB/2p1p3/8/2P3P1/P2Q1P1P/1R2R1K1 w kq - 0 26 | Qd5 | What piece is on b1? | White Rook | occupancy |
r4rk1/pp2bnp1/1qp2p1p/2n1pP2/2PpP1PP/3P1R1N/PP2N1Q1/R1B3K1 w - - 5 22 | Rg3 | Are there any open files in this position? | No | files |
8/p2p4/2p5/P7/2p1qK2/2n5/P2k4/8 w - - 2 53 | e1e4 | Is the White king in check? | Yes | check |
1bk5/pp6/2p1p1p1/8/1P1P4/2P1B1p1/P3KP1r/6R1 b - - 1 30 | g5 | Is the White king in check? | No | check |
r3r1k1/5ppp/2p3n1/3p2q1/N2P4/b2BP1Pb/2QN1P1P/1RR3K1 w - - 0 22 | Re1 | What piece is on d5? | Black Pawn | occupancy |
1Q3b2/5pk1/2p3p1/1p1bN2p/4n2P/8/r5P1/6K1 b - - 3 35 | Bc5+ | Are there any open files in this position? | Yes: a, d, e | files |
r1b2b1k/3q3p/p1n1R3/1p4r1/3P4/1B5Q/PPP2PPP/4R1K1 w - - 4 24 | f5g5 | Identify any White knight outposts on the board. | e5 | outposts |
r1b1k2r/pppp2pp/5pn1/2q5/3PPp2/1PB2Q2/2P1N1PP/2KR3R b kq - 0 14 | Qg5 | Are there any open files in this position? | No | files |
2k4r/2pr1pRp/4p3/p3P3/1bR5/4B3/P3KP1P/8 b - - 1 22 | h5 | Is the move from c7 to a1 legal? | No | legality |
6k1/7p/8/3B4/p6P/4q1PK/8/8 b - - 1 43 | g2d5 | Is the Black king in check? | Yes | check |
rnbqk2r/pp2ppbp/6p1/2p5/3PP3/2P2N2/P4PPP/R1BQKB1R w KQkq - 0 8 | Bb5+ | Does Black have any passed pawns? | No | structure |
4r2k/1pp4p/3p1nr1/3P3R/1PP5/8/3Q3b/3N2RK b - - 0 3 | Bxg1 | Is the g-file open, semi-open, or closed? | open | files |
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