fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
r2q1rk1/pp2b1pp/4p3/3pP2n/8/2PBp2P/PP1N1P2/R2QR1K1 w - - 0 16 | Qxh5 | Does White have any isolated pawns? | Yes: h3 | structure |
r2q1rk1/pppn1pp1/2n4p/2p1p3/2P1P3/3PBBPP/PP3P2/R2Q1RK1 b - - 0 13 | Nd4 | What piece is on d2? | Empty | occupancy |
r3k1nr/pp3ppp/2nqp3/3p4/3P2b1/1QP2N2/PP2BPPP/RN2K2R w KQkq - 0 10 | Ne5 | Does Black have any passed pawns? | No | structure |
5r1k/2q4r/4bN1p/1p2Q3/8/1B2P2P/2Pp2P1/5RK1 w - - 5 37 | Ne8+ | Is the move from f6 to h5 legal? | Yes | legality |
4r1k1/1pq1Bppp/p7/3B1P2/3n4/8/PP3PPP/R2Q2K1 b - - 0 19 | Qxe7 | Is the move from f7 to g6 legal? | No | legality |
2q1r1k1/1b5p/3Rp1pP/4BpQ1/4P3/P4P2/1PP2P2/6K1 w - - 0 29 | Qf6 | What piece is on e2? | Empty | occupancy |
r1b1q1k1/1pp2rb1/p1nppn1p/1N3p2/1PPP2p1/3N2P1/PBQ1PPBP/1R3RK1 w - - 0 15 | Na3 | Is the h-file open, semi-open, or closed? | closed | files |
8/1p2Rk2/2p3p1/p4p1p/5P1P/1P4PK/P5B1/8 b - - 0 35 | Kxe7 | What piece is on g3? | White Pawn | occupancy |
8/7K/5k2/5N2/1r6/8/8/8 w - - 12 15 | Nd6 | Does White have any passed pawns? | No | structure |
8/pp1k3p/8/7P/8/6P1/P3PP2/5K2 w - - 0 35 | e4 | What is the material balance in this position? | White is up 2 pawns of material | material |
8/6K1/8/8/1p1Q4/p7/2p2RP1/2k5 w - - 2 54 | b2c1 | What is the material balance in this position? | White is up 12 pawns of material | material |
2q2rk1/2r1ppb1/p5p1/1p1nN2p/3P4/2P3QP/P1BB1P1P/4R1K1 w - - 1 27 | Nxg6 | Is the move from a2 to d8 legal? | No | legality |
2r3k1/2P2p1p/8/4b1p1/1B2p3/6P1/5P1P/2R3K1 w - - 3 9 | Ba5 | Is the e-file open, semi-open, or closed? | semi-open for White | files |
4qrk1/5r2/3Qp2p/6p1/b2PB1R1/p3P1P1/P6P/1R4K1 w - - 0 3 | Bg6 | Does Black have any isolated pawns? | Yes: a3, e6 | structure |
2kr3r/p1pn1ppp/1pb1p3/4P3/5P2/4B1P1/PPP1B2P/R2R2K1 b - - 2 15 | Nb8 | Is the move from c6 to g1 legal? | No | legality |
r1b2rk1/pp2ppbp/6p1/5P2/1B4B1/1NN5/PPP4q/R2QKR2 b Q - 0 17 | Qg3+ | Does Black have any passed pawns? | Yes: h7 | structure |
4r1k1/2p2pp1/p4q1p/1p2n2Q/2N1B3/2P5/PP3PPP/3R2K1 b - - 0 25 | Nxc4 | Is the move from e8 to f8 legal? | Yes | legality |
3r3r/ppk1Q1bp/3p3n/2pP3P/5B2/1P1P4/q2NKPP1/1RR5 b - - 0 24 | e6e7 | Is the White king in check? | No | check |
r2rk3/3nqp1N/p2np3/1pp2pP1/2P5/P1NPP3/1B4QP/5RK1 w - - 1 29 | e4 | Is the move from f1 to f4 legal? | Yes | legality |
3b4/4k3/2p1p1K1/p1p1P3/P1P2P2/8/7P/8 w - - 1 46 | h4 | Does White have any passed pawns? | Yes: h2 | structure |
1k4b1/2p2p1r/1pPp1Bp1/1P1P2Pp/3K3P/8/2N5/8 b - - 1 1 | Ka7 | Is the a-file open, semi-open, or closed? | open | files |
r1q2rk1/pp2bppp/2n1pnb1/3p4/3P1BP1/P1PB1N1P/1PQN1P2/R3K2R b KQ - 0 13 | b5 | What piece is on g3? | Empty | occupancy |
4r3/3k1p2/p4Pp1/1p1pP2p/2r2K1P/Q7/P4PP1/8 w - - 1 33 | Kg3 | Is the move from f4 to f3 legal? | Yes | legality |
3r3k/1b2rp2/p6p/1p3P2/3P4/3B4/P1P3PP/R4R1K b - - 0 27 | f6 | Is the c-file open, semi-open, or closed? | semi-open for Black | files |
r4rk1/1pp2pp1/p1nb1n1Q/8/2BP4/P1N2N2/1P3P2/R3R1K1 b - - 0 16 | gxh6 | Are there any open files in this position? | Yes: e, h | files |
4n3/3b4/3n1pkp/1pB1p1p1/1Pp1PP2/2N3P1/4B2P/6K1 w - - 0 3 | f5+ | Does Black have any passed pawns? | Yes: c4 | structure |
1r2r1k1/4npb1/6p1/1p1Npq1p/1P6/1Q2P1PP/1B3PK1/2RR4 b - - 0 24 | Rb7 | Does Black have any isolated pawns? | Yes: b5 | structure |
r5k1/1b3pp1/5n1p/4p3/1p2P2P/1N3P2/B1R2KP1/8 b - - 0 38 | Bxe4 | Is the d-file open, semi-open, or closed? | open | files |
8/8/8/2P5/3K4/8/6k1/5Q2 b - - 0 53 | f6f1 | Is the Black king in check? | Yes | check |
r1b1kb1r/1pqn1ppp/p3p3/2p1N3/Q2P4/2P1B3/PP3PPP/R3KB1R w KQkq - 4 11 | O-O-O | What piece is on a1? | White Rook | occupancy |
r1b1k2r/1p2qpbp/p1np1p2/3R1p2/4P3/1NN3Q1/PPP3PP/2K2B1R b kq - 5 15 | Rg8 | Are there any open files in this position? | No | files |
8/8/8/8/3K4/1Q6/1p6/3k4 b - - 10 59 | c4b3 | Is the Black king in check? | Yes | check |
rn2kb1r/pp3pp1/2p5/4p2p/4P3/2NP3q/PPP2PB1/R1BQ1RK1 b kq - 1 12 | f3g2 | What is the material balance in this position? | White is up 2 pawns of material | material |
8/8/8/4k1p1/6P1/8/r7/3K4 w - - 0 59 | e6e5 | What is the material balance in this position? | Black is up 5 pawns of material | material |
r3kb1r/pppn1ppp/1q2pn2/8/2PP4/5N2/PP1BNPPP/R2Q1RK1 b kq - 0 10 | Be7 | Are there any open files in this position? | No | files |
8/P4p2/1Bk3p1/7p/8/3K2P1/1b5P/8 b - - 0 42 | Kb7 | Does Black have any isolated pawns? | No | structure |
7R/8/5p2/5k1p/1r2p2P/5KP1/8/8 w - - 0 45 | Kg2 | What piece is on e5? | Empty | occupancy |
r1r3k1/3n1pb1/2p3p1/2P1p3/pPNpPB1q/P6P/4QPB1/1R2R1K1 b - - 0 33 | Qxf4 | What piece is on f1? | Empty | occupancy |
2k4r/ppq2p1p/3r1p1b/1QpPnb2/2P1pN1P/4B3/PP2BPP1/2KR3R w - - 7 22 | g3 | Does Black have any isolated pawns? | Yes: h7 | structure |
k1rb4/p3r3/Pp1Q1p2/3P2q1/P1P4p/1R4nP/2R3PK/6B1 w - - 0 1 | c5 | Is the move from d6 to b4 legal? | Yes | legality |
8/p7/1pp5/2k1pN1n/4P3/5PK1/1q6/5N2 w - - 6 37 | f6h5 | Is the Black king in check? | No | check |
r1bq1rk1/ppp1bppp/2n1pn2/8/2pP4/P1N2NP1/1P2PPBP/R1BQ1RK1 w - - 1 9 | e4 | Are there any open files in this position? | No | files |
r1bq1rk1/4bpp1/1pp1pn1p/p2p4/2PPP3/2N2NP1/PPQ2PBP/R2R2K1 b - - 0 12 | dxe4 | Are there any open files in this position? | No | files |
r4rk1/1p1b2pp/p1n1pq2/2npN3/5P2/2NB4/PPPQ2PP/4RRK1 b - - 3 15 | Be8 | Is the move from g7 to g5 legal? | Yes | legality |
4k2r/1b1nbp2/p2ppn2/1p6/2rNP1PB/P1N2B2/1PP5/2KR3R b k - 0 19 | Ne5 | Is the move from a6 to g3 legal? | No | legality |
r1b2k1r/pp1pn1pp/1q1N4/4Pp2/3p1B2/3B1N2/PPP2KPP/R6R w - - 4 14 | Bd2 | What piece is on e5? | White Pawn | occupancy |
8/8/8/6p1/8/1k5P/p7/1K6 w - - 0 62 | a3a2 | Is the White king in check? | Yes | check |
r1b2rk1/pp4pp/2n5/3pP3/7K/3B1NN1/PP4qP/R1BQR3 w - - 0 19 | Bf1 | Does White have any isolated pawns? | Yes: e5, h2 | structure |
7k/1p3qp1/2p1prnp/5r2/PP1P4/4R2P/4RPB1/4Q1K1 w - - 1 38 | Rg3 | Does Black have any isolated pawns? | Yes: e6 | structure |
1k1r4/1bq4N/p2bpp2/5p1Q/PppnP3/7P/1P3PP1/2RBR1K1 w - - 3 25 | Nxf6 | Identify any White knight outposts on the board. | None | outposts |
r2q1r1k/1p4pp/2pnbb2/p2pBp2/3P2P1/3BPP1P/PPQ1N3/R4RK1 b - - 0 19 | Qe7 | Is the Black king in check? | No | check |
r1bb2k1/1p1p1p1p/2n3p1/1pn5/2P5/5N2/PPQ2PPP/R3r1K1 w - - 0 19 | e8e1 | What is the material balance in this position? | Black is up 5 pawns of material | material |
4Rr1k/2pb2p1/5n1p/5p2/2PPpP1P/2pnP1P1/3N2R1/3N2KB b - - 0 31 | c2 | What piece is on g3? | White Pawn | occupancy |
r4rk1/pb1n1ppp/1p2pn2/6q1/2PP4/P2B1P2/1B1NQ1PP/R3R1K1 b - - 0 17 | Nh5 | Does Black have any passed pawns? | No | structure |
r1b2rk1/1p3pq1/p3p1nR/3pP1PQ/3B4/7R/P1P4P/6K1 w - - 5 26 | Rh7 | Identify any White knight outposts on the board. | h6 | outposts |
2kr1bnr/pppbp1pp/2n5/1N1p1p2/1q1P1P2/1P2PN2/PBP3PP/R2QKB1R w KQ - 1 9 | c5b4 | Is the White king in check? | Yes | check |
6k1/2n2pp1/p6p/2N5/1p6/1QnNPP2/Pb2K1PP/1q2B3 w - - 2 36 | Kd2 | What piece is on c3? | Black Knight | occupancy |
1r3rk1/p2p1p1p/b2P1p2/3B4/npN5/6P1/PP3P1P/R4RK1 w - - 2 21 | Rfc1 | What piece is on d6? | White Pawn | occupancy |
6k1/R6p/2p2p2/2B3p1/2n5/6P1/1P1rPPKP/8 w - - 3 28 | Be7 | What piece is on d6? | Empty | occupancy |
r4rk1/1p2qpp1/3bbn1p/1PPp4/8/2NBPNP1/2Q2PP1/1R3RK1 b - - 0 19 | Bxc5 | What is the material balance in this position? | White is up 1 pawn of material | material |
3rr1k1/pp3ppp/8/2RNn1q1/3Q4/1P3BPP/PB3K2/8 b - - 0 24 | Nxf3 | Is the Black king in check? | No | check |
4k3/1R2b2p/8/4PK2/rpp5/4B2P/1P6/8 b - - 0 43 | c3 | Is the White king in check? | No | check |
r2r2k1/1pp2ppp/p7/4P3/2P1b3/P1K2N2/1P2BpPP/n6R b - - 1 22 | Nc2 | What is the material balance in this position? | Black is up 6 pawns of material | material |
8/8/r1K3R1/1P6/8/8/7p/7k w - - 2 65 | bxa6 | Does Black have any passed pawns? | Yes: h2 | structure |
8/3k2p1/2b1p2p/1n1pP3/2pP1Pp1/2P1NB2/3K3P/8 w - - 0 9 | Bxg4 | Is the move from f3 to d4 legal? | No | legality |
r1bqkb1r/ppp1pppp/1nnp4/4P3/2PP4/5N2/PP3PPP/RNBQKB1R w KQkq - 1 6 | e6 | What piece is on a6? | Empty | occupancy |
3b2rk/3P2pp/8/p7/8/2Q1p3/PP1p1pPP/3R3K b - - 0 37 | e2 | What is the material balance in this position? | White is up 5 pawns of material | material |
r2qr1k1/pbp2p2/1p3np1/3p2N1/2P4Q/3B3R/PP3PPP/R5K1 b - - 4 19 | Kf8 | What is the material balance in this position? | Equal | material |
4q1k1/p4p2/1p1B2pp/3P1n2/2P1n3/P5PN/1Q3P1P/6K1 w - - 3 28 | g7g8 | Identify any Black knight outposts on the board. | a5 | outposts |
2R5/3P1p1k/p4p2/1p6/8/P1r3b1/7r/3R2K1 b - - 1 42 | Rxa3 | Identify any White knight outposts on the board. | None | outposts |
8/pp5p/3kpn2/5pN1/PP1KPP2/7P/8/8 b - - 0 35 | fxe4 | Is the move from a7 to b8 legal? | No | legality |
r1bq1rk1/p4ppp/2p2n2/3p2B1/1b6/2NB1Q2/PPP2PPP/R4RK1 b - - 1 11 | Bd6 | Is the move from f8 to e8 legal? | Yes | legality |
r2q1rk1/ppp2ppp/1b1p4/4p3/4P1b1/1P1P1BP1/PBP5/R1K2Q2 b - - 0 16 | g2f3 | What is the material balance in this position? | Black is up 7 pawns of material | material |
1k6/8/4q3/Q4p2/PP3Pp1/2KP4/8/8 b - - 0 133 | g3 | Does Black have any passed pawns? | Yes: g4 | structure |
4R3/ppp4p/2nk1N2/8/3P1B2/2n2PPK/P1r5/8 b - - 5 32 | Ne5 | What piece is on f6? | White Knight | occupancy |
1rb1k2r/p1p2ppp/2p5/8/1b2q3/1P2BN2/P1P2PPP/R2QK2R w KQk - 1 12 | f8b4 | Is the White king in check? | Yes | check |
r1b1k2r/1p4pp/pBn2p2/3R4/8/8/PP3PPP/2K2B1R b kq - 0 19 | Be6 | Does Black have any passed pawns? | No | structure |
6k1/3q1pp1/p6p/1p1b4/3P1Q1P/P1P3P1/P4P2/4B1K1 b - - 0 26 | f6 | Identify any Black knight outposts on the board. | a4 | outposts |
8/8/1kp1N3/p2p4/P5p1/1P4r1/5K2/3B4 b - - 1 62 | Rc3 | Is the move from g3 to c3 legal? | Yes | legality |
8/5k1p/8/pN3p2/8/P4N1P/2r3P1/5K2 w - - 5 38 | Nfd4 | What is the material balance in this position? | White is up 1 pawn of material | material |
1Q6/3k4/5q2/5p1B/3pp2P/2b3P1/4PP2/6K1 w - - 8 54 | Be8+ | What piece is on c3? | Black Bishop | occupancy |
8/8/8/8/pPp1k1pP/3pBp2/1P1K1P2/8 b - - 0 3 | g3 | What piece is on a4? | Black Pawn | occupancy |
1r2r1k1/2pq1ppp/5nb1/pp2R3/3P4/PBP2QNP/1P3P1K/6R1 b - - 4 27 | b4 | What piece is on g2? | Empty | occupancy |
5k2/1p4pP/p7/1p1p4/8/8/2r2KPP/8 w - - 3 37 | Kg3 | Identify any Black knight outposts on the board. | a4, b5, c4, e4 | outposts |
r1bqk2r/pp1n1p2/4p2p/3nP1p1/1bNP4/3B2BN/PP2Q1PP/R2K3R w kq - 5 17 | a3 | Is the c-file open, semi-open, or closed? | open | files |
8/5kp1/4p3/1R1p1pKP/1P3P2/2P1P3/8/2r5 w - - 0 49 | a1c1 | What is the material balance in this position? | White is up 1 pawn of material | material |
1rr3k1/3nbppp/2n5/pq1pPp2/3P4/4NN2/P2Q1BPP/2R2RK1 b - - 1 22 | Bb4 | Does White have any isolated pawns? | Yes: a2 | structure |
5b1k/R6p/p2r1pp1/3Np3/4P1PP/8/P4P2/5K2 w - - 1 29 | g5 | Does White have any isolated pawns? | Yes: a2 | structure |
r1bqkbnr/pp1p1ppp/2n5/2p1p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq - 1 4 | Be7 | Does White have any isolated pawns? | No | structure |
r1b1k2r/bpp2p2/p1np1q1p/4P1p1/PPBp2n1/2P2N2/3NRPPP/R1BQ2K1 b kq - 0 13 | dxe5 | Is the move from g4 to f2 legal? | Yes | legality |
1r1q1rk1/5pbp/3ppnp1/pb6/1n1PP3/RPN1B1PP/1N3PB1/3QR1K1 b - - 4 18 | d5 | Is the move from b5 to f1 legal? | Yes | legality |
5rk1/6pp/p3q3/1p1pN3/8/2P3B1/pP1Q2PP/Rb4K1 b - - 0 30 | h6 | What is the material balance in this position? | White is up 1 pawn of material | material |
r1b2qk1/1p2p3/pn3r2/5p2/3p2pQ/2NB3P/PPP5/R3K2R w KQ - 0 24 | hxg4 | What piece is on f8? | Black Queen | occupancy |
N6r/pp1k1pbp/2np1p2/5q2/2PP4/1P4P1/P4P1P/R2Q1RK1 b - - 0 21 | Rxa8 | Is the c-file open, semi-open, or closed? | semi-open for Black | files |
1r2r1k1/3n1bb1/p1np3p/2p1pp2/PpP2P2/3PB2P/1PBN2P1/3RRNK1 w - - 3 28 | Nb3 | Is the move from c2 to e7 legal? | No | legality |
r5qk/ppp2p1p/3p1p1Q/8/4Pp2/3P4/PPP2P1P/R6K w - - 0 20 | Rg1 | Does Black have any passed pawns? | No | structure |
rn6/p2p4/4pp2/2R4B/kp5P/4N1P1/P1Q1P3/4K2R b K - 3 31 | d2c2 | Is the Black king in check? | Yes | check |
1R6/pP1k1p2/P2np1p1/3p3p/2r2P2/2PK2PP/8/8 w - - 1 4 | Rf8 | Is the d-file open, semi-open, or closed? | semi-open for White | files |
3q1rk1/p1r2ppb/Bpp2nnp/P2p4/1P1N1P2/1QN1P3/3P2PP/R4RK1 w - - 1 18 | Rfc1 | Does Black have any passed pawns? | No | structure |
8/pk2bp2/1p2p3/1Pp1P1P1/2P1KP2/5N2/8/8 b - - 1 1 | a6 | What piece is on e7? | Black Bishop | occupancy |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.