fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
q3kb1r/3bnppp/2n1p3/1p2P3/2pP4/2P1BN2/4BPPP/1N1Q1RK1 b k - 3 13 | Nd5 | What piece is on c2? | Empty | occupancy |
r1nr1k2/pp1n3p/2p1bpp1/4p3/2P1PP2/1PN3PP/P3N1BK/3R1R2 w - - 0 19 | fxe5 | What piece is on a1? | Empty | occupancy |
r7/4K1k1/3RP3/8/8/8/8/8 b - - 4 3 | Rb8 | Does Black have any isolated pawns? | No | structure |
r1b1r3/pp3pkp/5pn1/7Q/3N4/P3P1KP/1q3PP1/3R1B1R b - - 2 20 | Qxa3 | What is the material balance in this position? | Equal | material |
r2r2k1/1b2bp1p/pp1ppp2/n7/3NPP2/2NR4/PPP1B1PP/2K4R b - - 1 17 | b5 | What piece is on g7? | Empty | occupancy |
r1bq1rk1/1p2ppbp/p2p2p1/3N1n2/2PP4/1P4P1/PB3PBP/R2Q1RK1 w - - 0 14 | Qd3 | Are there any open files in this position? | No | files |
r4rk1/pbq2pp1/1p1b4/4B2p/7P/2PBQ2R/PP3PP1/R3K3 w Q - 0 20 | Qh6 | Does White have any passed pawns? | No | structure |
r1bqk2r/pppp1ppp/2n5/2b1n3/2P5/4PN2/PP2BPPP/RNBQ1RK1 b kq - 1 7 | O-O | What is the material balance in this position? | Equal | material |
r4rk1/pp1b2pp/1q6/3p4/1P4n1/P2B3N/5RPN/R1BQ2K1 b - - 0 20 | Nxf2 | What piece is on f6? | Empty | occupancy |
r1bqkb1r/pppp1p1p/2n1pnp1/8/2PP4/P1N2N2/1P2PPPP/R1BQKB1R b KQkq - 1 5 | d6 | Identify any Black knight outposts on the board. | None | outposts |
1rbq1rk1/5pp1/1np1n2p/p2pP3/P2P4/RQ3NP1/3N1PBP/1R4K1 w - - 2 22 | Qc3 | Is the b-file open, semi-open, or closed? | open | files |
5rr1/pp1k4/2np1pn1/q1p1pN1Q/4P3/2NP2P1/PPP2P2/R4RK1 w - - 2 17 | e7g6 | What is the material balance in this position? | White is up 1 pawn of material | material |
1k6/pbp5/1pp4p/8/1P4p1/3rr2N/P6P/RK1q1B1R w - - 2 31 | d2d1 | Is the Black king in check? | No | check |
r4rk1/1bpR1pbp/1pq1p1pB/p3P3/P1P4Q/5N1P/2P2PP1/3R2K1 w - - 10 27 | Bxg7 | Identify any Black knight outposts on the board. | a5, c5 | outposts |
r2qk2r/pp1bbppp/1nn1p3/3pP3/2pP1N1P/P1P1BN2/1P3PP1/R2QKB1R b KQkq - 0 11 | h6 | Identify any White knight outposts on the board. | None | outposts |
r1bq1rk1/ppp2pp1/1b3n1p/3P4/1nBP3B/2N2N2/PP1Q1PPP/R3K2R b KQ - 0 12 | Qe8+ | What piece is on e4? | Empty | occupancy |
8/1p5R/p3k3/P4p2/4p3/1r4P1/6K1/8 b - - 15 49 | c7h7 | What is the material balance in this position? | Black is up 2 pawns of material | material |
R7/2pk3p/6p1/2P5/8/8/3r1PPP/6K1 w - - 0 34 | g3 | What piece is on d2? | Black Rook | occupancy |
8/3k1p2/1R2b1p1/r6p/3B3P/2P1K1P1/5P2/8 w - - 3 51 | Rb4 | Is the move from d4 to g7 legal? | Yes | legality |
5Q1k/1p6/p2P2pp/8/1q2N3/4r3/6PP/6K1 b - - 3 39 | f7f8 | Is the White king in check? | No | check |
4r1k1/1p3p1p/pqrpb1p1/8/3BnN2/1P1R3P/P1P3P1/5RQK b - - 1 24 | Qa5 | What piece is on a3? | Empty | occupancy |
r1bqk2r/p4ppp/2P5/1p2P3/Q1n5/2P2N2/P5PP/R1B1K2R w KQkq - 0 15 | Qb4 | What piece is on d8? | Black Queen | occupancy |
4r1k1/p4p1p/b1r3p1/q2p4/N1pQn3/1P4P1/P3PPBP/2R1R1K1 b - - 1 21 | Rec8 | Does White have any isolated pawns? | No | structure |
rnbqr1k1/ppp2ppp/1b1p1n2/4p1N1/1PB1P3/P1N2Q2/2PP1PPP/R1B1K2R b KQ - 1 8 | Rf8 | What is the material balance in this position? | Equal | material |
r1b2rk1/ppbnqppp/2p2n2/4p3/1P1P4/P1N1PN2/B1QB1PPP/R4RK1 b - - 2 13 | Nb6 | Are there any open files in this position? | No | files |
6k1/6p1/6np/3Rp3/2p1Pp2/1q3P2/1PK3PP/3R4 w - - 2 33 | b6b3 | Is the White king in check? | Yes | check |
3r4/1B1R1pk1/pP3np1/6N1/2Nn2b1/6P1/1P3P2/4R1K1 b - - 0 47 | Rxd7 | What is the material balance in this position? | White is up 6 pawns of material | material |
r2q1rk1/1p1b1pb1/2npp1p1/2p2n2/1PP5/2NPP1P1/2NB1PB1/1R1Q1RK1 b - - 0 16 | cxb4 | What piece is on g6? | Black Pawn | occupancy |
rr1q2k1/5pb1/2Q1p1p1/1nPp3p/3P4/pP2N1P1/P4P1P/B1RR2K1 w - - 0 26 | Ng2 | Does Black have any isolated pawns? | Yes: a3 | structure |
r2qk2r/pb1nbppp/2p1pN2/8/3P4/P2BPN2/5PPP/R1BQK2R b KQkq - 0 12 | Bxf6 | Does Black have any isolated pawns? | Yes: a7, c6 | structure |
2r5/p3Rrk1/1p5p/3P2p1/PnP5/5P2/5P1P/2R3K1 w - - 1 30 | f8f7 | What is the material balance in this position? | Black is up 1 pawn of material | material |
8/8/2pk2B1/p4P2/Pp4b1/3p2P1/r7/2K5 w - - 0 54 | c4d3 | Identify any White knight outposts on the board. | e6, f4, g6, h4 | outposts |
8/5p2/1p3Nk1/pb3q1p/3Q3P/4P1K1/8/8 w - - 2 56 | Qxb6 | Does Black have any isolated pawns? | Yes: f7, h5 | structure |
r2q1rk1/1pp1bppp/2n5/p2bp3/Q7/P2PBNP1/1P2PPBP/R1R3K1 b - - 2 13 | Re8 | What piece is on c1? | White Rook | occupancy |
q7/6bk/3p2bp/2pPp1p1/2P1N3/P4P2/1B4PP/3Q2K1 w - - 0 35 | Nxd6 | Is the a-file open, semi-open, or closed? | semi-open for Black | files |
4r3/ppR5/5pk1/3q2p1/3Pp1b1/2Q3P1/PP3P2/4R1K1 w - - 1 36 | f4 | Identify any Black knight outposts on the board. | d3 | outposts |
4r1k1/p2b1pp1/7p/2b5/2R1BN2/6P1/5P1P/6K1 b - - 11 35 | Rc8 | Is the move from f7 to d6 legal? | No | legality |
r1q1r1k1/1ppb1pp1/3p1n2/7p/p1PQP1P1/P4P1P/1P1N2B1/R4RK1 b - - 0 17 | b6 | What is the material balance in this position? | Equal | material |
8/3P2k1/1RB2n1p/p7/P4pP1/3r4/1P3K2/8 w - - 1 46 | Rb8 | What piece is on e5? | Empty | occupancy |
r1b3k1/1p4pp/p1p1p2r/3pPp1q/2P1nP2/1P1BPN2/P5PP/R2Q1RK1 w - - 3 16 | h3 | Is the d-file open, semi-open, or closed? | semi-open for White | files |
2rBr1k1/bpn2ppp/4b3/p2p4/8/PQN2PP1/1P2NnBP/R2R2K1 b - - 2 20 | Nxd1+ | Are there any open files in this position? | Yes: c, e | files |
2r3k1/pb2br1p/q2PQpp1/1p6/8/P4N2/1B3PPP/2RR2K1 b - - 1 24 | Bf8 | Is the d-file open, semi-open, or closed? | semi-open for Black | files |
1K6/8/b7/8/1q1q4/8/1k6/8 w - - 8 69 | b7a6 | Is the Black king in check? | No | check |
r1bqk2r/ppp1bppp/2n1pn2/8/2P5/3PBNP1/PP3PBP/RN1Q1RK1 b kq - 0 8 | e5 | Is the e-file open, semi-open, or closed? | semi-open for White | files |
2kr3r/ppp2ppp/2nbpn2/5q2/3P4/PNN1B3/1PP1QPPP/2KR3R b - - 2 12 | Nd5 | What piece is on c1? | White King | occupancy |
8/1p1nkpr1/2b1p2R/p2pP1N1/P2P1P2/1P1B4/3K2P1/8 w - - 1 39 | Rh7 | Identify any Black knight outposts on the board. | None | outposts |
2kr1b1r/ppqn1p1p/2p2p2/7b/2PPp3/1Q2B2P/PP2BPP1/2KR2NR b - - 1 16 | Bg6 | Does Black have any isolated pawns? | Yes: h7 | structure |
r1bqkbnr/ppp2ppp/2n5/3pp3/8/5NP1/PPPPPPBP/RNBQK2R w KQkq - 0 4 | d3 | What is the material balance in this position? | Equal | material |
2kr3r/1p1bbp2/p2ppn1p/q3n3/3NPB2/1BN5/PPPQ2PP/4RRK1 w - - 1 16 | Nd5 | What is the material balance in this position? | Equal | material |
r1r3k1/p3qn2/np1p2p1/2pPp1pp/1PP1P3/PR2QP2/3NN1PP/5RK1 w - - 4 3 | Nc3 | Identify any Black knight outposts on the board. | None | outposts |
r3k2r/1ppnqpp1/p2p4/3P4/Q1P1pNp1/6P1/PP2PP1P/R3K1NR w KQkq - 0 15 | e3 | Is the h-file open, semi-open, or closed? | semi-open for Black | files |
2kr3r/p1b3pp/1pQ5/2q2p2/P4B2/6PB/5P1P/5RK1 w - - 0 29 | Bxf5+ | Is the move from c6 to b7 legal? | Yes | legality |
N1b2bkr/pp1np1pp/5nq1/8/8/8/PPPP1PPP/R1BQK1NR b KQ - 0 9 | Qxg2 | What is the material balance in this position? | White is up 4 pawns of material | material |
r2q1rk1/pp2nppp/1npb4/5b2/3P4/1QN2NP1/PP3PBP/R1B2RK1 b - - 2 13 | a5 | What is the material balance in this position? | Equal | material |
1r3rk1/4ppbp/Pq4p1/3p4/Q2Pn3/5N2/1P2NPPP/4RRK1 w - - 1 24 | d8b6 | What is the material balance in this position? | White is up 1 pawn of material | material |
7r/pp6/2p5/2kp1N2/5nP1/8/P4P2/2R3K1 b - - 2 28 | f1c1 | Is the White king in check? | No | check |
r1b2rk1/pp1ppp1p/5bp1/q7/3nP2Q/1BN1B3/PPP2PPP/R4RK1 w - - 0 12 | Qxf6 | Identify any Black knight outposts on the board. | None | outposts |
6k1/7p/6p1/1pp3q1/4B3/2P3N1/1P4K1/3R4 b - - 1 31 | Qe3 | Is the Black king in check? | No | check |
3r4/8/5k2/p1R3pp/3K4/1P4PP/P7/8 w - - 8 49 | a8d8 | Is the White king in check? | Yes | check |
r4rk1/pp3ppp/5q2/2np1b2/8/P3PN2/1P2BPPP/R2QK2R w KQ - 0 14 | Nd4 | Does White have any isolated pawns? | No | structure |
r3k2r/1q1n1ppb/pb1p1n1p/1p1Pp2P/1N2P1P1/PN2BP2/1P2Q3/2R1KB1R b Kkq - 4 19 | Bxe3 | Does Black have any isolated pawns? | No | structure |
8/8/p1p3RK/8/2k3PP/4p1r1/P1P5/8 w - - 0 44 | Kg5 | Is the b-file open, semi-open, or closed? | open | files |
r7/p1pp1r2/bpPkp3/6Q1/2P1p3/P1P2P2/1q4P1/2R1KB1R w K - 3 27 | Qe3 | Is the move from g5 to e4 legal? | No | legality |
r1bq1rk1/pp1nppbp/5np1/2pP2B1/8/2N2N2/PPPQ2PP/2KR1B1R w - - 4 10 | Bh6 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r1r3k1/1q1p1pp1/4p2p/1p2P3/n7/bNP2N2/1P2QPPP/R2R2K1 w - - 0 20 | bxa3 | Identify any Black knight outposts on the board. | None | outposts |
2r3k1/pp3pp1/4bb1p/q2p1P1Q/3P4/2PR4/P5PP/1K3B1R b - - 2 19 | Rc6 | What piece is on h7? | Empty | occupancy |
r1bq1rk1/pp3pbp/2n1p1p1/3p2Pn/3NP3/2N1BP2/PPPQ3P/R3KBR1 w Q - 1 12 | exd5 | Is the move from g5 to g2 legal? | No | legality |
rnbq1rk1/pp1nb3/4p3/2p4Q/3Pp3/P4N2/1P3PPP/R1B1K2R w KQ - 2 16 | Bh6 | Is the move from c1 to b6 legal? | No | legality |
r1bq1rk1/p4pb1/1p2p1np/2p3p1/P1BnP3/2NP1NB1/1PP3PP/R2Q1R1K b - - 0 14 | Bb7 | What is the material balance in this position? | Equal | material |
6k1/pp1q2p1/2n4p/3pP3/8/PN3P2/1PP4P/4Q2K b - - 0 26 | Qf5 | Identify any Black knight outposts on the board. | None | outposts |
rn2kb1r/pp3p2/2p1pp2/3q3p/3PB2P/5P2/PPPQ2P1/R3K1NR b KQkq - 3 14 | Qc4 | Is the d-file open, semi-open, or closed? | semi-open for Black | files |
5r2/4R3/2k3p1/1pBp4/p1bP1KP1/P1P1P3/8/8 w - - 5 46 | g8f8 | Is the White king in check? | Yes | check |
r3k2r/pppq3p/4b1p1/7Q/3Pp3/2P5/P1P3PP/R1B2RK1 w kq - 0 14 | Qh4 | What piece is on a8? | Black Rook | occupancy |
3r1n1k/4R1p1/p7/5PPq/2Q4P/8/1bR4K/8 b - - 0 48 | Rd4 | Identify any White knight outposts on the board. | e6, g5, g6 | outposts |
r2qk1r1/pb3p2/1n5p/1NbP3n/2B3pP/6B1/PP3PP1/2RQ1RK1 w q - 3 19 | d6 | Identify any Black knight outposts on the board. | None | outposts |
2r2rk1/2p1bppp/p2qpn2/1p4N1/3P1P1P/3B4/PPP1Q1P1/1K1R3R b - - 0 17 | Qxf4 | What piece is on d3? | White Bishop | occupancy |
r4rk1/pp1b1p1p/3p1Q2/3NpP1P/3q4/1P6/1PP3P1/2K2R2 b - - 3 24 | Rfe8 | Does Black have any passed pawns? | Yes: e5 | structure |
8/1b2k1p1/2p4p/ppP1p3/8/P3PB2/4KPPP/8 b - - 2 33 | Ba6 | Identify any White knight outposts on the board. | None | outposts |
8/8/6Q1/7R/1BN5/4P2k/4K3/8 b - - 10 71 | f5h5 | Is the Black king in check? | Yes | check |
r2q1rk1/p5pp/bppbpn2/3p1p2/2PP4/1P3NP1/PB2PPBP/2RQ1RK1 b - - 5 15 | Qe7 | What piece is on g7? | Black Pawn | occupancy |
rnbqkbnr/ppp1p3/8/3p1ppp/2PPPPP1/8/PP5P/RNBQKBNR b KQkq - 0 5 | e5 | Is the a-file open, semi-open, or closed? | closed | files |
r1bqk2r/pppp1ppp/2n5/8/2BPn3/2b2N2/PP3PPP/R1BQ1RK1 w kq - 0 9 | d5 | Identify any White knight outposts on the board. | None | outposts |
8/7k/B1pp1qp1/4b2p/p3P1nP/P7/r7/5K2 w - - 1 39 | e7f6 | What is the material balance in this position? | Black is up 19 pawns of material | material |
b4bk1/7p/2q3p1/p3Pp2/5P2/1pP1Q2P/1B1rNR1K/R7 b - - 3 38 | Rxb2 | Identify any Black knight outposts on the board. | h5 | outposts |
2r3k1/pp1Q3p/3b2p1/3P4/8/7P/P2B1PK1/1q6 w - - 4 33 | Qxc8+ | Does Black have any isolated pawns? | No | structure |
rnbqk2r/ppp1pQ2/8/3p2Np/2PP2n1/2N1P3/PP3PPP/R3KB1R b KQkq - 1 10 | f5f7 | Is the Black king in check? | Yes | check |
Qnb2bnr/p1pp2kp/6p1/1p6/4P1q1/3P4/PPP1N2P/RNB1K3 b - - 0 14 | Bb4+ | Identify any Black knight outposts on the board. | h5 | outposts |
r1k2b1r/p2nq1p1/2b1p1Bp/1p1n4/3P4/3Q1NB1/1PP2PPP/R3R1K1 w - - 2 17 | Bf5 | Is the a-file open, semi-open, or closed? | semi-open for White | files |
r7/5kb1/2bPp3/r1p1Pp2/2P2B2/3N1P2/p1RK2P1/R7 w - - 9 14 | Nc1 | Identify any Black knight outposts on the board. | None | outposts |
2r1r3/p5k1/5p2/2pb2Bp/8/2P3QP/6qK/b7 w - - 0 34 | a2g2 | Is the White king in check? | Yes | check |
rn3rk1/p3ppbp/3p1np1/8/3PPB2/1R3N1P/3N1PP1/R5K1 b - - 0 17 | Nc6 | Is the b-file open, semi-open, or closed? | open | files |
r4rk1/2p3pp/p1n1bq2/1p1p4/8/2P2N2/PPBNQKPP/R1B5 b - - 1 15 | Bf5 | Are there any open files in this position? | Yes: e, f | files |
8/1R4p1/2p2pk1/4p3/3q2P1/3b4/1R1B1K2/r7 w - - 7 46 | d5d4 | Is the White king in check? | Yes | check |
2b5/1p2R1kp/3R1rp1/2r5/2P5/3B1P2/6PP/6K1 b - - 6 34 | Rf7 | Does White have any isolated pawns? | Yes: c4 | structure |
r1b1kb1r/1p3ppp/p1n3q1/8/3B4/5B2/PPPQ1P1P/2KR3R w kq - 1 14 | Bf6 | Identify any Black knight outposts on the board. | None | outposts |
8/5p2/4p1k1/3pPpPp/1p1P1P2/1P2R1K1/5Q1P/2r4q b - - 2 46 | Rf1 | What is the material balance in this position? | Equal | material |
r4k2/5Pp1/4p3/2PpP1Np/2P2P2/5n2/pr6/R2R2K1 w - - 2 35 | h4f3 | Is the Black king in check? | No | check |
2r1r1k1/3qnpb1/1p5p/p1PpP1pn/P7/R3NN1P/1PQB1PP1/4R1K1 b - - 0 22 | Nf4 | Identify any White knight outposts on the board. | b6, d6, f6 | outposts |
r4qk1/pp1b2pp/2n1p2n/2RpP3/1P3rP1/P4N1P/1B2BP2/3QK1R1 b - - 2 19 | a5 | Identify any Black knight outposts on the board. | None | outposts |
rn1qkb1r/3bpppp/1p3n2/1BPp4/1p1P4/8/P1Q2PPP/RNB1K1NR w KQkq - 2 9 | c6 | What piece is on h8? | Black Rook | occupancy |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.