fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
r7/5P1k/3p3p/2p1qb1p/1p2N1rP/1P1P1Q2/2P2R2/2R2K2 b - - 2 40 | Bxe4 | Identify any Black knight outposts on the board. | None | outposts |
5r2/p1P1n1kp/1p2B2r/5p2/6pq/PQ5P/1P1N1PP1/3R2K1 w - - 1 28 | Re1 | Is the White king in check? | No | check |
r3r3/pp1qb1pk/2n1p1p1/3p4/3P4/P1N2PP1/1PQ2B1P/3RR1K1 w - - 0 26 | h4 | Does Black have any passed pawns? | No | structure |
7k/6pb/ppqp1p2/3NnP2/1P1R2Pp/7P/P5K1/4Q3 b - - 5 37 | a5 | What is the material balance in this position? | White is up 1 pawn of material | material |
2r3k1/2P3p1/1QR4p/p3p3/q7/4P2P/3r1PP1/6K1 w - - 0 32 | Qb7 | Does White have any isolated pawns? | Yes: c7 | structure |
r2qr1k1/3nbppp/p2p4/3N1PPQ/nP6/R7/2P2P1P/2B2R1K b - - 2 22 | g6 | Is the c-file open, semi-open, or closed? | semi-open for Black | files |
rnb2rk1/pp2ppbp/3p1np1/q7/4PP2/2NBBN2/PPP1Q1PP/R3K2R w KQ - 4 10 | h3 | Is the move from f3 to h6 legal? | No | legality |
4rrk1/2p2qpp/1p1p4/p1n1pP2/P1P2nP1/1P2BP1P/1Q3R2/3R1BK1 b - - 4 33 | Qf6 | Are there any open files in this position? | No | files |
r4rk1/pp2qp1p/2p2n2/3p1pB1/3P4/2N2Q2/PPP2PPP/5RK1 w - - 0 15 | Qg3 | Does White have any isolated pawns? | No | structure |
1r3rR1/5p1k/3pbq1P/4p3/1p2P3/1P1B4/2P3Q1/1K4R1 w - - 0 34 | Rg7+ | Is the White king in check? | No | check |
4r3/1pp2kpp/p4p2/4nB2/2P5/PP3bPP/5P2/4R1K1 w - - 2 24 | g8f7 | What is the material balance in this position? | Black is up 3 pawns of material | material |
R7/3N2kp/p5p1/2p5/3p1PP1/7P/r7/7K b - - 1 45 | d8a8 | What is the material balance in this position? | White is up 1 pawn of material | material |
8/6rk/7p/4pq2/P2p4/4p3/1PP1Q2P/1K1R4 w - - 0 36 | Rf1 | Does White have any isolated pawns? | Yes: h2 | structure |
4Q3/ppq2pkp/6p1/8/2pP4/2Pb1BP1/PP1N3P/6K1 w - - 2 27 | g8g7 | What is the material balance in this position? | White is up 3 pawns of material | material |
8/kp6/6p1/p2pPn2/3P1P2/PbPR4/2q2Q2/2B1K3 b - - 2 46 | Qxc1+ | Identify any White knight outposts on the board. | d4, d6, g5 | outposts |
4k2r/1pq1bppp/2n2n2/1BP1p3/1P1p4/5Q1P/3P1PP1/BN3RK1 w k - 1 15 | Qg3 | Is the move from a1 to b2 legal? | Yes | legality |
r1bq1rk1/1p3pb1/p4npp/4p3/2BpP2B/N2P4/PPP3PP/R2Q1RK1 b - - 1 14 | g5 | What piece is on g1? | White King | occupancy |
rn1qkb1r/p1pp1ppp/bp2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R w KQkq - 1 5 | Qb3 | Is the White king in check? | No | check |
8/pp2kp1R/4p1p1/3pP1P1/3P4/1P6/r2BK3/2n5 w - - 3 32 | d3c1 | Is the White king in check? | Yes | check |
8/pp3Np1/3PBpkp/4p3/6P1/4P3/3r1P1P/6K1 w - - 1 32 | e4 | Is the move from d6 to a3 legal? | No | legality |
r4rk1/1bq1bppp/p2ppn2/1p2n1B1/3N1P2/1BN4Q/PPP3PP/2KRR3 b - - 0 14 | Nc6 | Is the move from e7 to d8 legal? | Yes | legality |
3r2r1/6k1/bRP1p2p/3pNp2/5P2/7P/P2R2P1/6K1 b - - 3 36 | Ra8 | Is the move from d8 to d6 legal? | Yes | legality |
r4rk1/pppqbppb/5n1p/2pP1P2/2P3P1/2N1BB2/PP1Q3P/R4RK1 w - - 1 19 | Rae1 | Is the move from a2 to a5 legal? | No | legality |
r2n2k1/ppp2rpp/4b3/3Bp2q/2P2p2/BP4P1/P1Q1PP1P/3R1RK1 w - - 1 18 | Qd3 | What piece is on g3? | White Pawn | occupancy |
8/1k3p1p/6p1/PPrp2P1/7P/8/5P2/3R2K1 w - - 1 35 | Rb1 | What piece is on a5? | White Pawn | occupancy |
1r5r/pb1R1Qpk/2p4p/P7/8/8/5PPP/q2B2K1 w - - 5 26 | Rd6 | Does White have any isolated pawns? | Yes: a5 | structure |
4b3/p2qk3/1p1rpp1Q/2p5/2P4P/8/PPB5/1K2R3 b - - 2 32 | e5 | Is the move from d7 to a4 legal? | Yes | legality |
2kr3r/1pp1q1pp/1n2p3/3bPp2/1P1P4/3Q1N2/3N1PPP/R1R3K1 w - - 0 23 | Qb5 | Is the move from d2 to g8 legal? | No | legality |
r4r1k/pppqn1b1/3p1n1p/2PPppp1/4P3/2NNBP2/PP4PP/2RQ1RK1 w - - 3 17 | h3 | Are there any open files in this position? | No | files |
1r1qk2r/p1p1bpp1/2p1b3/4P2p/2N3n1/4PPP1/PP1N3P/R1BQ1RK1 b k - 0 13 | Qd3 | What piece is on a1? | White Rook | occupancy |
rk6/6Qp/pNp1p3/2P2p2/8/8/4BKPP/1q6 w - - 3 35 | Qf8+ | Is the move from g7 to h7 legal? | Yes | legality |
5r2/pbr2qk1/1p4pp/3p4/2n5/3B1NQ1/P4PPP/3RR1K1 w - - 2 24 | Bxg6 | Identify any Black knight outposts on the board. | a5, c4, c5 | outposts |
r1b2rk1/ppqn1pbp/2p1pNp1/3p2B1/2PP4/5NP1/PP2PPBP/R2QR1K1 b - - 0 11 | e4f6 | Is the White king in check? | No | check |
R7/3bk3/3p2P1/2pPp2K/4P3/1P6/3b4/8 b - - 0 5 | Be8 | Is the move from d7 to b5 legal? | Yes | legality |
5rk1/6p1/1BR1p2p/P1P3q1/4p3/5P2/2Q3PP/6K1 b - - 0 32 | exf3 | Identify any White knight outposts on the board. | b6, e4 | outposts |
8/5p2/p4k2/8/P7/8/2P5/3K4 w - - 0 1 | Kd2 | What piece is on h4? | Empty | occupancy |
r5k1/r1qn2pp/3p1p2/p1pPpP2/R2nP3/1P1B4/PR1B2PP/4Q1K1 b - - 4 25 | Nb6 | Is the b-file open, semi-open, or closed? | semi-open for Black | files |
rnb1kb1r/2p2ppp/p2qpn2/1p6/2BP4/2N2N2/PPP2PPP/R1BQ1RK1 w kq - 0 8 | Be2 | Is the move from c4 to h3 legal? | No | legality |
Qnb2bnr/p1pp2kp/6p1/1p6/4Pp2/8/PPPPN1qP/RNBKR3 b - - 1 10 | Bd6 | Does Black have any passed pawns? | Yes: f4 | structure |
8/8/2K2k2/r7/3P4/8/8/3R4 w - - 14 8 | Re1 | What piece is on a6? | Empty | occupancy |
8/8/5k2/7p/8/P1K2P1P/1P3P2/8 w - - 0 39 | g6f6 | What is the material balance in this position? | White is up 4 pawns of material | material |
r3r1k1/p2q1pp1/1bp4P/6Qn/3P1n1B/2N2N2/PP3P1P/3R1KR1 w - - 3 22 | Qg4 | Does Black have any isolated pawns? | Yes: a7, c6 | structure |
rnbqkb1r/pp2pppp/5n2/2p1P3/N2p4/5N2/PPPP1PPP/R1BQKB1R b KQkq - 1 5 | Nfd7 | What piece is on b4? | Empty | occupancy |
7b/1k6/8/P1PK3P/8/1N6/8/8 w - - 1 165 | a6+ | Does White have any passed pawns? | Yes: a5, c5, h5 | structure |
2k4r/p4pbp/1pp1b3/4Pp2/2Pp1P2/2N5/PP3KPP/5B1R w - - 0 23 | Ne2 | Does Black have any isolated pawns? | Yes: f5, f7, h7 | structure |
r1bqk2r/1p3ppp/2n1pn2/p1bp4/8/PP2PN2/2PN1PPP/R1BQKB1R w KQkq - 0 8 | Bb2 | What is the material balance in this position? | Equal | material |
3r1r1k/p4p1p/bp2p3/2p1b3/4N3/1PP3P1/P3NR1P/R5K1 w - - 0 26 | g7e5 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r1b2rk1/pp3npp/3qpb2/1P1p4/P2P4/2NBPN2/6PP/R2Q1RK1 w - - 2 17 | Bc2 | Identify any Black knight outposts on the board. | None | outposts |
8/p7/8/6Rk/8/P1P5/3KP3/1N4R1 b - - 0 47 | g8g5 | Is the White king in check? | No | check |
5k2/5qp1/1p2r2p/p2B2bP/P1Pp2Q1/3P2P1/5PK1/8 w - - 4 52 | Bxe6 | What is the material balance in this position? | Black is up 4 pawns of material | material |
r4rk1/5ppp/2p1p3/p1q5/Q1n1P3/2P3P1/P3bPBP/R3R1K1 w - - 0 22 | Rxe2 | Are there any open files in this position? | Yes: b, d | files |
r3kb1r/p1ppqppp/b1p5/3nP3/2P5/1P6/P3QPPP/RNB1KB1R b KQkq - 0 9 | g6 | What is the material balance in this position? | Equal | material |
3r2k1/1p1r1pp1/p6p/2P1p3/1P2Q1P1/P1qP1PbP/R3KN2/1R6 b - - 2 32 | Bxf2 | What is the material balance in this position? | White is up 1 pawn of material | material |
1k1q4/pp4pp/1np2r2/4n3/4P1B1/P1N2P2/1PP1Q2P/1K1R4 b - - 1 23 | Qe7 | What piece is on h8? | Empty | occupancy |
5rk1/5ppp/4pn2/3p4/pQ1P4/P3P3/1Pq2PPP/1N3RK1 b - - 3 21 | h5 | What is the material balance in this position? | White is up 1 pawn of material | material |
r1b1k3/1p2b1pr/p1q1p2p/7Q/4n1P1/3B4/P1PB3P/1R2KR2 b q - 0 21 | Kd7 | Does White have any isolated pawns? | Yes: a2, c2 | structure |
r1bqr1k1/pp4pp/1b3p2/2npnB2/3N4/P4P2/1PP1NBPP/R2Q1R1K w - - 3 18 | b3 | Is the move from f5 to g6 legal? | Yes | legality |
7k/8/2p3p1/7p/P1B2R1P/1P3P1K/3r1rP1/8 b - - 0 40 | Rxg2 | Identify any White knight outposts on the board. | a4, c4, e4 | outposts |
5k1r/1p3p1N/1nb1p2p/p2pP3/P2P4/1P5R/3K1PP1/1B6 b - - 7 34 | Ke7 | Identify any Black knight outposts on the board. | None | outposts |
8/7P/2p1kp2/3p4/3P3K/4PR2/5P2/7r w - - 1 77 | Rh3 | Is the move from h4 to g3 legal? | Yes | legality |
2r3k1/pp1b2bp/1q2pr1p/nP1p4/3P4/P4N2/R2QBPPP/1N3RK1 w - - 0 16 | Ne5 | Is the move from a2 to d3 legal? | No | legality |
1r5k/p5p1/1p3n2/5QNp/8/5P2/q4P1P/4R1K1 w - - 0 26 | Re7 | What is the material balance in this position? | Black is up 1 pawn of material | material |
2rqnrk1/p2nbppp/1p2p3/1b1pP3/3P4/5NP1/PP1N1PBP/R1BQR1K1 w - - 6 15 | Nf1 | Is the move from d4 to b3 legal? | No | legality |
8/8/8/pp3pK1/1p3P2/1Pk1r1P1/P1P3R1/8 b - - 2 45 | Kb2 | Is the c-file open, semi-open, or closed? | semi-open for Black | files |
rnbqkbnr/pppp1ppp/8/4p3/2P5/6P1/PP1PPP1P/RNBQKBNR b KQkq - 0 2 | Nf6 | Is the move from a7 to b1 legal? | No | legality |
6k1/Br3nbp/R7/5p2/8/6P1/B4PKP/8 w - - 1 57 | Be3 | Identify any White knight outposts on the board. | f4, h4 | outposts |
5qk1/1p3p2/2npbp1p/4p3/2P1P2N/8/4BPPP/3QK2R b K - 1 19 | f3h4 | What is the material balance in this position? | White is up 4 pawns of material | material |
1q1r4/4kp2/4p3/3b4/1P2p1pQ/4P1P1/5P1P/2R3K1 b - - 3 34 | Kd7 | Does Black have any passed pawns? | No | structure |
2q2rk1/1p2pp1p/p2p2p1/6nn/P3P1P1/1PN2P2/2P3K1/R2Q1R2 b - - 0 19 | Nf4+ | Does White have any isolated pawns? | No | structure |
1q1rk2r/7p/pN1pQbp1/8/2P5/1P4P1/P4PbP/R2R2K1 b k - 0 20 | Be7 | What is the material balance in this position? | Black is up 1 pawn of material | material |
2r3k1/6pp/2q2p2/4p3/2n1P3/6BP/4QPPK/2R5 b - - 1 31 | Qe6 | Does White have any isolated pawns? | No | structure |
r1q1r1k1/1p3pp1/p1p2n2/2Nn4/PPQN2b1/6P1/3RPP2/2R3KB b - - 0 24 | Qc7 | Is the move from g7 to g3 legal? | No | legality |
4b3/8/5k2/pBK4p/5P1P/6P1/8/8 b - - 12 12 | a4 | Is the e-file open, semi-open, or closed? | open | files |
3k4/1b1p2pp/p1r1p3/2q1P3/Q3P3/2P5/1P2B1PP/3R1K2 w - - 1 29 | Qd4 | What is the material balance in this position? | White is up 1 pawn of material | material |
8/3R4/1p2r1p1/1P1p1p1p/2k4P/5KP1/8/8 b - - 0 100 | d4 | Are there any open files in this position? | Yes: a, c, e | files |
8/3n1p1k/3pb2b/1p2p1PQ/1P2P3/2PBq2P/r7/1N4RK b - - 6 39 | Rf2 | Are there any open files in this position? | Yes: a | files |
r4rk1/pp3ppp/1Qn1b3/3n4/8/2P3P1/P3NPBP/R1B2RK1 b - - 0 14 | axb6 | Does Black have any passed pawns? | No | structure |
r5k1/7p/8/1pP3p1/PKq5/8/8/8 w - - 1 43 | d3c4 | Is the White king in check? | Yes | check |
8/5kbp/3nppp1/p2p4/1p1P1P1P/1P2PNP1/P5K1/3N4 b - - 2 33 | h5 | Is the Black king in check? | No | check |
r2qkb1r/1b3p1p/p3pp2/n7/PppPP3/5N1P/1PB2PP1/R1BQ1RK1 b kq - 1 14 | Qc7 | Is the move from e6 to e5 legal? | Yes | legality |
8/p7/8/1Pp1p3/2P5/p1k5/4B3/2K5 b - - 1 51 | a2 | Is the move from a7 to e3 legal? | No | legality |
r2q1r1k/3bbp2/p3pn2/1p5p/3p1Q2/3B4/PPPB1PPP/4RRK1 b - - 1 20 | Ng4 | What is the material balance in this position? | Black is up 3 pawns of material | material |
1kr1b2r/p1pn1ppp/Pp2p3/8/3PP3/1PR1KPP1/3N3P/2R2B2 w - - 4 28 | Nc4 | Is the move from h2 to f5 legal? | No | legality |
8/6P1/8/8/8/1k1K4/p7/8 w - - 0 7 | g8=Q+ | Does Black have any passed pawns? | Yes: a2 | structure |
r3k2r/p2n3p/3Q1bp1/2Pp2B1/8/2q2P2/P2RK2P/5B1R w - - 2 22 | Qxd5 | What piece is on a2? | White Pawn | occupancy |
3k4/8/8/4R3/8/6K1/6PP/8 w - - 3 58 | c7d8 | What is the material balance in this position? | White is up 7 pawns of material | material |
rnb1k2r/pp3p1p/5B2/8/3P4/2Pp4/P1P3PP/2KR3R b kq - 1 14 | Rg8 | Is the e-file open, semi-open, or closed? | open | files |
2q2bk1/p3rpp1/4R1p1/n2p2N1/3B2P1/2PQ3P/P4PK1/8 w - - 2 30 | Rxg6 | What piece is on f7? | Black Pawn | occupancy |
4r1k1/1p2pp2/r2p1qp1/p2Pb2p/P1P1R3/1P1Q1PPP/4RBK1/8 b - - 18 43 | Raa8 | Is the c-file open, semi-open, or closed? | semi-open for Black | files |
3k2nr/p1p2ppp/1p6/2b5/1nP5/6P1/PP1N3P/RN1K2q1 w - - 5 32 | e3g1 | Is the White king in check? | Yes | check |
5rk1/pbq1bp1p/4p1p1/2p1N1Bn/3r1P2/1P1B3Q/P1P3PP/4RRK1 b - - 0 21 | Bd6 | Identify any Black knight outposts on the board. | None | outposts |
2k3rr/1p1b1pp1/p1qpp3/4bP1n/3BP3/2N5/PPP1BQ1P/2KR2R1 w - - 2 20 | Bxe5 | Are there any open files in this position? | No | files |
r1b2rk1/3n1pbp/2pQ2p1/q3n3/N3P3/1P3P2/3BN1PP/3RKB1R b K - 2 16 | Qa7 | Does White have any isolated pawns? | Yes: b3 | structure |
Q5k1/5p2/3p4/3P1pb1/3R4/1N6/KP4qp/8 b - - 0 41 | Kg7 | What piece is on b3? | White Knight | occupancy |
rnb1k2r/pppp1p1p/1b4pQ/3N4/2B2P2/4B3/PqP3PP/R3K2R w KQkq - 0 12 | e5b2 | What is the material balance in this position? | Black is up 2 pawns of material | material |
rnbqk2r/pp3pp1/3p1n1p/2pPp3/1bP4B/2N1P3/PP3PPP/R2QKBNR w KQkq - 0 8 | Bd3 | Are there any open files in this position? | No | files |
8/3R2k1/6p1/2r4p/5PP1/1p6/1Kb5/8 b - - 5 50 | d6d7 | Is the Black king in check? | Yes | check |
r2r2k1/pp3p2/2p1bqn1/4p1p1/4P1Pp/2PNNP2/PPQ2R1P/3R3K w - - 3 26 | Nf5 | Is the move from h2 to h3 legal? | Yes | legality |
r7/1p3kN1/1p1p1P2/1P1Pn1q1/1PB1Q1p1/8/8/5RK1 w - - 1 40 | Nf5 | Identify any White knight outposts on the board. | None | outposts |
1r4k1/qb2Qppp/p3p3/3p4/P4P2/8/5P1P/1R4K1 w - - 4 31 | c8b8 | What is the material balance in this position? | Black is up 5 pawns of material | material |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.