fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
6k1/5pp1/p4b1p/1pNB4/1P6/P1Q1P1Pb/5P1P/6K1 b - - 0 30 | d3c3 | What is the material balance in this position? | White is up 10 pawns of material | material |
1r3rk1/pPp1q1n1/3p2pb/3Pppnp/2Q1P3/2NN1PPP/P3BBK1/7R w - - 1 28 | Qa6 | Does White have any isolated pawns? | No | structure |
4r3/PK6/3p4/3P4/8/6k1/5p2/R7 b - - 2 40 | Kg2 | Does White have any isolated pawns? | Yes: a7, d5 | structure |
r4rk1/1p3p2/p1p1bBpQ/8/5R2/6RP/3p1PPK/7q w - - 1 30 | b1h1 | Is the White king in check? | Yes | check |
5rk1/1p1b1p2/1n2P3/p2pQp1p/1q6/3P4/5BPP/R5K1 w - - 2 32 | e7 | Is the move from e6 to f6 legal? | No | legality |
8/p4pkp/P5p1/8/4b3/5P2/4q1KP/8 w - - 1 47 | c4e2 | Is the White king in check? | Yes | check |
1r1r1k2/2q3pp/p2N1b2/2pRp3/2Q1P2P/P7/1P3P2/K2R4 b - - 6 29 | Qb6 | What piece is on e2? | Empty | occupancy |
rn1q1k1r/ppp3pp/5n2/2b1N3/4P1Q1/8/PPPP2PP/RNB1K2R w KQ - 1 9 | Qe6 | Is the d-file open, semi-open, or closed? | semi-open for Black | files |
6k1/ppq1bpp1/1np5/4p1p1/P3P1b1/1BNQ1N2/1PP2PPP/6K1 b - - 1 19 | Nd7 | What piece is on e1? | Empty | occupancy |
4r3/p2b1pbk/3p2p1/1p1P3p/2r4P/5P2/PPPBN1P1/1K1R3R b - - 0 21 | Rxe2 | Is the Black king in check? | No | check |
5R2/8/8/8/5kP1/2rp4/6K1/8 b - - 3 51 | e8f8 | Is the Black king in check? | Yes | check |
2rq1rk1/3nbppp/bp2p3/pn1pP1N1/3P3P/P5P1/1P2NPB1/R1BQR1K1 b - - 6 17 | Re8 | What piece is on c8? | Black Rook | occupancy |
3q1r1k/1Qp5/1p1p3b/1P2p3/2P1NPp1/3P4/1B2P3/R5K1 b - - 0 29 | Qh4 | Is the move from h6 to g7 legal? | Yes | legality |
2rqk2r/pp1bbp1p/2n1pp2/8/Q1ppN2B/5N2/PP3PPP/1K1R1B1R b k - 3 13 | b5 | Is the move from c8 to c1 legal? | No | legality |
8/2Q3k1/4P3/4n1qp/1PP5/5p2/5RPP/4B1K1 b - - 0 37 | c5c7 | Is the Black king in check? | Yes | check |
r1b1r1k1/pp1p1pb1/3P4/2pN1p1Q/2PqP3/8/PP6/n1B2KNR w - - 2 20 | Ne2 | What piece is on g8? | Black King | occupancy |
2r3k1/2rbqpp1/1p2p2p/p2pP3/P2P1P2/R1P1N3/1Q4PP/R5K1 b - - 9 24 | Qh4 | Identify any White knight outposts on the board. | None | outposts |
2r2rk1/pp1qppbp/6pB/n2pP3/3P2b1/2P2NP1/P4PBP/R1Q1R1K1 w - - 7 16 | Bxg7 | What is the material balance in this position? | Equal | material |
6k1/3N1b1p/2r5/5R2/8/1P4rP/7K/5R2 b - - 1 35 | Rcc3 | What piece is on b3? | White Pawn | occupancy |
4r3/pp3pkp/1n4p1/q7/1bpPP3/2N5/PPQN2PP/4RrK1 w - - 0 20 | Rxf1 | Is the f-file open, semi-open, or closed? | semi-open for White | files |
r1b1k1n1/3pppb1/pqp5/6B1/4P3/1BN5/PPP3Pr/R2QK2R w KQq - 0 12 | Rxh2 | What is the material balance in this position? | Equal | material |
r4rk1/pp1bqppp/4pb2/3n4/6Q1/6P1/PP1NPPBP/R1BR2K1 w - - 6 14 | Ne4 | Is the White king in check? | No | check |
1k4r1/1pbn3p/p2NP3/5Q2/3p4/Pq1P2B1/1P5P/5R1K b - - 0 31 | Nb6 | Identify any Black knight outposts on the board. | None | outposts |
r1bq1rk1/pppnn1bp/3p2p1/3Ppp2/2P1P3/2NN1P2/PP2B1PP/R1BQ1RK1 b - - 1 11 | Kh8 | What piece is on a8? | Black Rook | occupancy |
rn1qk2r/ppp1bppp/4p3/7b/8/2NPnN1P/PPP1BPP1/R2QK2R w KQkq - 0 9 | d5e3 | What is the material balance in this position? | Black is up 3 pawns of material | material |
rnbqk2r/5ppp/p2p4/3Pp3/1p3PPb/1N6/PPP1B3/R1BQ1K1R w kq - 2 14 | Bd3 | What piece is on d7? | Empty | occupancy |
5rk1/p6p/1r1p2qQ/3Rp3/1p6/1P3P2/1PP3P1/2K4R w - - 0 23 | Rh4 | What is the material balance in this position? | Equal | material |
6k1/p1p3pp/3b1n2/2p3B1/3p4/NP5P/P3rPP1/R5K1 b - - 3 22 | d2g5 | Identify any Black knight outposts on the board. | d4 | outposts |
3r2k1/1q3pp1/p3p2p/1pR5/1P1nN2P/P3Q1P1/5P2/6K1 b - - 0 35 | Nb3 | Does White have any passed pawns? | No | structure |
1n3rk1/3r1ppp/1q2p3/1pRp4/1P6/3Q1BP1/P3PP1P/3R2K1 b - - 3 21 | Rb7 | What is the material balance in this position? | Equal | material |
rn1qkbnr/pbpp1ppp/1p2p3/8/4P3/3P2P1/PPP2PBP/RNBQK1NR b KQkq - 2 4 | d5 | Are there any open files in this position? | No | files |
r1bqkb1r/4nppp/p3p3/3pP3/N4B2/3B4/PP3PPP/R2Q1RK1 w kq - 0 14 | Bg5 | Does White have any passed pawns? | No | structure |
rnb1kb1r/pp2pppp/1q3n2/2pp4/3P1B2/2P1P3/PP3PPP/RN1QKBNR w KQkq - 1 5 | Qc2 | Does White have any isolated pawns? | No | structure |
r2qr1k1/2ppnpp1/1p5p/4P3/1Q5P/1N3P2/PPP2P2/R3R1K1 b - - 0 18 | Ng6 | Does Black have any isolated pawns? | No | structure |
r1b3k1/1pq1bppp/p3pn2/8/3r4/1QNBB2P/PP3PP1/3R1RK1 b - - 1 15 | Rh4 | Is the move from f6 to d5 legal? | Yes | legality |
1r6/4k2p/p3p3/8/3Bp3/8/PqP1B2P/3K1R2 w - - 3 32 | Bxb2 | Identify any Black knight outposts on the board. | f3, f5 | outposts |
3rk3/5pp1/p1Q2b2/qp2p2r/8/2P2P2/PP6/R3KBR1 b Q - 2 22 | Kf8 | Identify any Black knight outposts on the board. | f4 | outposts |
2n2rk1/1br3pp/p2bRp2/1p1p4/1N1P2PP/P2B1P2/1P6/1KBR4 w - - 8 26 | h5 | Identify any White knight outposts on the board. | None | outposts |
8/p6p/1p6/2k1bP1P/P1P5/1P6/2K5/8 b - - 0 40 | h4h5 | What is the material balance in this position? | Black is up 1 pawn of material | material |
3r4/1p1nkp1p/pb2pp2/8/2R1N1P1/1P2PN2/P4P1P/5K2 b - - 0 19 | Nb8 | What is the material balance in this position? | Equal | material |
r1q1k2r/4bpp1/2n1pnp1/1p1p4/1p1P1B2/P1PQ1N2/3N1PPP/4RK1R w kq - 0 17 | axb4 | Identify any Black knight outposts on the board. | a3, a4, c3 | outposts |
2r1R1k1/p5pp/2P5/3P1p2/8/P7/1b3PPP/4R1K1 b - - 1 25 | e6e8 | Is the Black king in check? | Yes | check |
2r5/4kppp/1P1p4/p2B4/Pn2PP2/r3P3/3R1K1P/1R6 b - - 0 29 | Rxa4 | Is the move from a3 to d6 legal? | No | legality |
4r1k1/pn2q1pp/1p1rb3/2p1R3/1P6/P1Q1PPP1/1B2BKP1/R7 b - - 2 26 | h6 | What piece is on g4? | Empty | occupancy |
2rq1rk1/pb1nbppp/1p3n2/2P5/2p5/1PN2NP1/P1Q2PBP/R1BR2K1 w - - 0 14 | b4 | Is the e-file open, semi-open, or closed? | open | files |
rn1qkbnr/pp3pp1/4p2p/2ppP3/3P3P/2PQ4/PP3PP1/RNB1K1NR w KQkq - 0 8 | Ne2 | Is the b-file open, semi-open, or closed? | closed | files |
r3k2r/1p2np2/p2p1b1B/3P1q1P/5R2/2P5/PP1QB3/R2K4 b kq - 2 26 | Qe5 | Identify any White knight outposts on the board. | d4 | outposts |
2b3k1/3r2bp/p7/1p4Q1/4p3/1P2P3/2P1B1P1/7K w - - 0 34 | Bg4 | Is the f-file open, semi-open, or closed? | open | files |
3K4/1k1P4/5p2/5P2/8/8/4R2p/7r w - - 8 62 | Ke7 | Does White have any isolated pawns? | Yes: d7, f5 | structure |
r4rk1/q4p2/n2Npp2/p3P2p/pn6/6P1/1P1Q1PbP/2RR2K1 w - - 0 25 | exf6 | Identify any Black knight outposts on the board. | b3, b4 | outposts |
6k1/1R5R/3p1P2/2pP1K2/8/5r2/6rP/8 w - - 9 46 | Ke6 | Identify any Black knight outposts on the board. | b4, d4 | outposts |
r4bkr/pp2p1pp/2n2n2/qBN2bN1/1pP5/8/P2PQPPP/R1B1K2R w KQ - 7 15 | Nge6 | Does White have any isolated pawns? | Yes: a2 | structure |
1qr2rk1/1bbn1ppp/pp1ppn2/8/1PP1P3/PNN1BP2/3QB1PP/2RR2K1 w - - 0 17 | Bf4 | Is the move from e4 to e5 legal? | Yes | legality |
2k2b1r/p1pr1p1p/1pn5/2p1Pp2/2B2P2/4B3/PP3KPP/R6R w - - 2 21 | e6 | Is the d-file open, semi-open, or closed? | open | files |
2b1k3/2p2p1Q/4pq2/r1b5/1n6/3p4/P2NPPPP/1R2KBNR b K - 1 16 | Qxf2+ | Does White have any passed pawns? | Yes: a2, h2 | structure |
8/7p/1R3p2/8/2pP4/2k1P3/r4PPP/5RK1 w - - 2 34 | h3 | Are there any open files in this position? | Yes: a, b | files |
r4rk1/1ppb1pp1/2n2n2/p2p2q1/P2Pp2p/1PN1P2P/2PQNPP1/2KR1B1R b - - 3 14 | Nb4 | Are there any open files in this position? | No | files |
rnbqkb1r/pp3ppp/2p2n2/3p4/3P4/2N2N2/PPQ1PPPP/R1B1KB1R b KQkq - 1 6 | Bd6 | Is the move from b7 to c8 legal? | No | legality |
r2q2nr/pp3ppp/4bk2/1B1p4/3P4/B1P5/P4PPP/R2QR1K1 w - - 6 15 | Qf3+ | Identify any White knight outposts on the board. | d4 | outposts |
5rk1/1r4pp/1P1p4/8/4p3/4QpP1/1RP1qP1P/3R3K w - - 7 36 | Re1 | Identify any Black knight outposts on the board. | c5 | outposts |
r1b2k1r/pppn1p1p/4p3/3pP3/3n1N2/2N5/PPP2PP1/2KR1B1R b - - 1 13 | c5 | What piece is on h5? | Empty | occupancy |
r2qkb1r/p2n2p1/n6p/2p1P3/Pp1p4/1Q4N1/1P3PPP/R1B2RK1 w - - 2 16 | Qe6+ | Does White have any isolated pawns? | No | structure |
2k5/K7/8/8/P7/8/8/8 b - - 4 90 | Kc7 | Does Black have any passed pawns? | No | structure |
r3rk2/1b3pp1/p1qp1n2/1p2pPBp/4P2Q/P1PB2R1/2P3PP/5R1K b - - 1 22 | Ke7 | Is the move from f8 to e7 legal? | Yes | legality |
8/ppp4p/2p5/5k2/3Pp3/5p2/P2K1p1P/5R2 b - - 0 32 | Kf4 | What is the material balance in this position? | Equal | material |
3r1bk1/1p5p/6p1/K7/6b1/P4PP1/1P1r2BP/R2N3R b - - 2 30 | Bd7 | Identify any White knight outposts on the board. | b4, e4 | outposts |
8/p7/6k1/1PP4p/5r2/2K5/1P5R/8 b - - 0 37 | h4 | Identify any Black knight outposts on the board. | g4 | outposts |
r1b1kr2/ppp2p1Q/6p1/6b1/4P3/1BN5/PPPq1PPP/R4K1R b q - 4 15 | Be6 | Is the e-file open, semi-open, or closed? | semi-open for Black | files |
r6k/1p2r2q/p1n1p3/3p3Q/7R/P5P1/1P3PK1/2R5 w - - 0 27 | Qg4 | Is the move from h5 to f5 legal? | Yes | legality |
r1bqk2r/pppp1Npp/2n2n2/4p3/2B1P3/8/PPPP1bPP/RNBQK2R w KQkq - 0 6 | c5f2 | Is the White king in check? | Yes | check |
3r4/pp1Q1pk1/5b2/1P1p4/2r2Pp1/P1N1BnP1/5K1P/2R1R3 b - - 2 35 | Rxd7 | Does Black have any passed pawns? | Yes: d5 | structure |
6r1/1pq1bkp1/p1rppnNp/4p1nP/2P1P3/4NQ2/PP3PP1/R1B2RK1 w - - 5 24 | Qe2 | Is the White king in check? | No | check |
r2q1rk1/2p2pp1/2Pp1b1p/1p2p3/4P1b1/2N2N2/PPP2PPP/R2Q1RK1 w - - 0 13 | Nd5 | Identify any White knight outposts on the board. | None | outposts |
rnbqkb1r/ppp2ppp/3p1n2/8/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq - 0 6 | d5 | Is the move from c8 to e6 legal? | Yes | legality |
N4r2/pp1k2p1/3pb3/Q1p3qp/2PnPp2/1P5P/P5B1/R4R1K b - - 5 22 | Rxa8 | What piece is on f6? | Empty | occupancy |
5r2/p5kp/2n1prb1/1p1p2p1/2p5/P1P3N1/1P1R1PPP/3BR1K1 b - - 5 29 | Rd8 | What piece is on b3? | Empty | occupancy |
5rk1/1pp3bp/3p2p1/3Pp3/1PP1B3/4B2P/q4PP1/1R2K2R b K - 0 26 | Bh6 | Identify any White knight outposts on the board. | None | outposts |
1r3rk1/2p1b1p1/p4pqp/3BPb2/3P4/2P2Q2/PP1B1PPP/R4RK1 b - - 0 18 | c6d5 | What is the material balance in this position? | White is up 3 pawns of material | material |
rn1qkb1r/p3ppp1/2p2n1p/1p1p1b2/3P3B/4PN2/PPPN1PPP/R2QKB1R w KQkq - 2 7 | Bd3 | What piece is on g4? | Empty | occupancy |
r4rk1/3n1p1p/1p1b2p1/pP1p4/3P2P1/2P5/5PNP/R1B1R1K1 b - - 2 20 | Nf6 | Are there any open files in this position? | Yes: e | files |
8/8/1pk3p1/1p3p1p/P1K2P1P/6P1/8/8 w - - 0 55 | a6b5 | Is the White king in check? | Yes | check |
r1b1nrk1/1p2bppp/pB1pp3/8/4PP2/2N5/PPP1B1PP/2KR3R w - - 1 14 | e5 | Are there any open files in this position? | No | files |
1k3n1r/pb2b2p/2n1p1pP/3p2N1/QppP1qB1/2P2N2/PP1R2P1/2K4R b - - 1 23 | Bxg5 | What piece is on e6? | Black Pawn | occupancy |
6r1/4Q1p1/6k1/p2pPp2/3P3R/4q2P/1P4PK/8 b - - 7 39 | Rh8 | What piece is on f4? | Empty | occupancy |
2kr4/1pp2ppp/p1p1b3/4P3/1P2Q3/P1PK2Pn/5q1P/RN5R w - - 2 23 | h8d8 | Is the White king in check? | Yes | check |
8/5pk1/6pp/4R3/5PPP/4P3/6K1/4r3 b - - 0 49 | Ra1 | What is the material balance in this position? | White is up 1 pawn of material | material |
r1bq1rk1/1p2ppbp/pn3np1/3P4/3P1Q2/1BN2N2/PP3PPP/R1B2RK1 w - - 1 13 | Qh4 | Is the White king in check? | No | check |
5Q2/7k/3p3p/2p1q2p/1p2b1rP/1P1P4/2P2R2/2R2K2 b - - 0 42 | Bg2+ | What piece is on f1? | White King | occupancy |
1r1q4/4b1kp/2r1Qn2/p2p4/3P4/5N2/P4BPP/5RK1 w - - 0 26 | Qxc6 | What piece is on b3? | Empty | occupancy |
8/8/2Q1k3/1R6/1P3Pp1/N3N1K1/6P1/8 b - - 12 59 | c7c6 | Is the Black king in check? | Yes | check |
rnbqkb1r/5ppp/pp1ppn2/8/2PNP3/2N1B3/PP3PPP/R2QKB1R w KQkq - 0 8 | g4 | What is the material balance in this position? | Equal | material |
5rk1/r2q2bp/2p2pp1/p1Pp4/3P1P1P/Pp1bPN2/1P1B1Q2/2K3RR b - - 0 23 | h5 | Is the move from d3 to b1 legal? | Yes | legality |
8/8/3K4/pB6/P1k5/8/8/2r5 b - - 11 63 | Kb4 | Are there any open files in this position? | Yes: b, c, d, e, f, g, h | files |
r2q1rk1/pp2ppbp/2n1bnp1/3p4/2PP4/2N1BN1P/PP2BPP1/R2QK2R w KQ - 5 10 | cxd5 | Is the e-file open, semi-open, or closed? | semi-open for White | files |
r3r3/pp6/1b3n1k/8/5P2/2PB1nPq/PPQ4P/R4K2 w - - 3 27 | g4h3 | Is the White king in check? | Yes | check |
k7/p7/1bbNPP2/4B2p/2p5/1P5K/P6R/5r2 w - - 10 50 | bxc4 | Are there any open files in this position? | Yes: d, g | files |
r3k3/5p1p/1bp1pBp1/8/p1P5/3R1PP1/P3P2P/4K3 b - - 1 29 | Bd8 | Identify any Black knight outposts on the board. | None | outposts |
r1bqkb1r/p2npp1p/2p3P1/1p4B1/P1pPP3/2P5/5PP1/R2QKBNR b KQkq - 0 10 | fxg6 | Is the Black king in check? | No | check |
1r4k1/4ppbp/3p2p1/2pP4/2n1P3/PrN2P2/RP4PP/2BR2K1 w - - 2 24 | a4 | Is the White king in check? | No | check |
r1bqkb1r/ppp2ppp/n3pn2/1N1p4/3P1B2/4P3/PPP2PPP/R2QKBNR b KQkq - 0 5 | c6 | Identify any White knight outposts on the board. | None | outposts |
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