fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
r2qkb1r/pQ1N1ppp/2p1p3/3p1b2/1nP5/6P1/PP1PPPBP/RNB1K2R b KQkq - 0 9 | Nc2+ | Does Black have any passed pawns? | No | structure |
rnbq1rk1/ppp1bppp/4pn2/3p4/2PP4/5NP1/PP2PPBP/RNBQK2R w KQ - 4 6 | Qd3 | What is the material balance in this position? | Equal | material |
3r4/8/p1k5/1p4P1/1P1K1P2/4N3/8/8 w - - 5 75 | Kc3 | What piece is on f8? | Empty | occupancy |
5rk1/p1p4p/1p4q1/3Pp3/4n1b1/1PN2RP1/P3K3/4QR2 w - - 0 32 | Ke3 | Does Black have any passed pawns? | Yes: e5 | structure |
5k2/p6p/1p1p2p1/2pPq3/2P1b1P1/P6P/1P2QK2/5B2 b - - 4 38 | Qf4+ | Identify any Black knight outposts on the board. | None | outposts |
r1bq1rk1/pp1n1ppp/4pn2/b2p4/2PP4/PP1B1N2/1B1N1PPP/R2Q1RK1 b - - 0 11 | Bc7 | Are there any open files in this position? | No | files |
1r1r1bk1/5ppp/p2p1PP1/3Pp2P/1pq5/4B3/PPP2Q2/2KR3R b - - 0 24 | fxg6 | What piece is on a1? | Empty | occupancy |
8/pRp5/8/8/8/2Pn1k2/P3n3/5K2 b - - 0 48 | Nef4 | What is the material balance in this position? | Black is up 1 pawn of material | material |
2k1r1nr/1pp3pp/p4p2/bb6/5B2/P3P1P1/2P1KP1P/1R3B1R w - - 1 20 | d7b5 | Is the White king in check? | Yes | check |
1r6/4k1pp/p3pp2/n1p4P/n1P1N1P1/P3P3/4KP2/B2R4 w - - 7 25 | h6 | Does Black have any isolated pawns? | Yes: a6, c5 | structure |
3r4/ppp3p1/2n4p/2bk4/3pR3/P2K1N2/1PPB1PPP/8 b - - 2 23 | Rf8 | Is the f-file open, semi-open, or closed? | semi-open for Black | files |
r3r1k1/1ppb1pp1/1n1b1q2/p2Pp2p/P3P3/3N2P1/1P1N1PBP/R1RQ2K1 b - - 1 20 | h4 | Is the White king in check? | No | check |
7R/8/5p2/5k1p/1r2p2P/5KP1/8/8 w - - 0 45 | Kg2 | Identify any White knight outposts on the board. | h4 | outposts |
r3k2r/ppp2pp1/2p1b3/4PnBp/1b6/2N2N1P/PPP2PP1/3R1RK1 w - - 4 13 | a3 | Does Black have any isolated pawns? | No | structure |
r1b2rk1/pp1n1qp1/2nbp2p/3p4/3P4/3BNN2/PP3PPP/R1BQR1K1 w - - 4 14 | Ng4 | Are there any open files in this position? | Yes: c | files |
8/pp3k2/3pNn2/3Pp3/4P3/1P3Rp1/1r4P1/5K2 w - - 0 39 | Ng5+ | Does Black have any isolated pawns? | Yes: g3 | structure |
rnb1k2r/pp3ppp/4pn2/2pq4/1b1P4/2N2N2/PPQBPPPP/R3KB1R b KQkq - 1 7 | Bxc3 | What piece is on h3? | Empty | occupancy |
r1bqr1k1/pp1nbppp/2p2n2/3p2B1/3P4/2NBPN2/PP3PPP/R2Q1RK1 w - - 6 10 | Qc2 | What is the material balance in this position? | Equal | material |
rn2kb1r/p3pppp/b1B2n2/4Nq2/3P4/2N5/PPP2PPP/R1BQK2R b KQkq - 0 10 | a4c6 | Is the Black king in check? | Yes | check |
r5qr/2pk1p1p/p3b3/P1ppP3/3b4/2NQ4/5PPP/R1B2RK1 b - - 4 20 | Qg6 | What is the material balance in this position? | Black is up 1 pawn of material | material |
8/p2k2pp/1p2pp2/1P6/1K1P1P2/6P1/5BbP/8 b - - 0 42 | Kd6 | What piece is on h2? | White Pawn | occupancy |
2bq1knr/1pN2p2/p1np2p1/3Nb2p/4Pp2/3Q4/P1P1BPPP/1R2K2R w K - 2 16 | g3 | Is the b-file open, semi-open, or closed? | semi-open for White | files |
8/8/8/8/5R2/2k3P1/Q6P/6K1 w - - 14 63 | d2c3 | Identify any White knight outposts on the board. | f4, h4 | outposts |
5R2/6k1/3Bp3/p1P1P2p/2PK3b/r7/8/8 w - - 6 43 | c6 | Does White have any passed pawns? | Yes: c4, c5 | structure |
8/7p/3k1p2/pp6/2bN2P1/P3K2P/5P2/8 w - - 0 9 | Nc2 | What piece is on c6? | Empty | occupancy |
2r2rk1/pb1nbpp1/5n1p/q1pp4/P4B2/2N1PN2/1PQ1BPPP/R2R2K1 w - - 1 15 | Nh4 | What piece is on h8? | Empty | occupancy |
r1b2rk1/1p1n1ppp/pq3n2/4p3/4P3/P1NBN2P/1PP2QP1/R4R1K b - - 0 17 | Qxb2 | Is the move from f6 to a8 legal? | No | legality |
8/8/2p1kp2/p5pp/P1P1P2P/3K2P1/8/8 w - - 3 38 | Ke3 | Is the move from a4 to e4 legal? | No | legality |
rnb1kb1r/pp2pppp/2pp4/q2nP3/2BP1P2/8/PPP3PP/RNBQK1NR w KQkq - 1 6 | d8a5 | Is the White king in check? | Yes | check |
1r4k1/2p2r2/p2p2p1/P2P4/1P2Q3/8/3bRPP1/q4NK1 w - - 0 34 | Rxd2 | Is the move from f2 to b8 legal? | No | legality |
r1b2r1k/pp2qppp/4p3/2p1P2N/3pPQ2/1B1P4/PPP3PP/5RK1 w - - 3 18 | Rf3 | Does White have any isolated pawns? | No | structure |
r3qrnk/1b1nb1pp/pp1p1p2/2p1pPP1/2P1P2P/2NP3N/PP4B1/R1BQ1R1K w - - 0 17 | Qg4 | Are there any open files in this position? | No | files |
3r1rk1/ppq2p1p/2p3p1/3b3n/PP2N1P1/2P5/1B2QPBb/1R3RK1 w - - 0 18 | e5h2 | Is the White king in check? | Yes | check |
2r1r2k/1q1n2pp/2p2p2/4p3/pP2P3/P3B1PP/2R1QPK1/2R5 b - - 5 3 | c5 | What is the material balance in this position? | Equal | material |
2R3k1/5pp1/7p/4P3/4r3/8/6PP/2Q3K1 b - - 2 34 | c2c8 | Is the Black king in check? | Yes | check |
6k1/p4pp1/6q1/3p4/7p/PPBNP2P/3Q1KP1/7r w - - 2 35 | Nf4 | What piece is on f8? | Empty | occupancy |
r6r/ppB1qk1p/6p1/1b1R1p2/4p3/P5Q1/1PP2PPP/2K4R b - - 0 19 | Rac8 | Does Black have any passed pawns? | No | structure |
4R1nr/1b1r2pp/ppk5/1pb5/5B2/8/PP3PPP/2RQ2K1 w - - 6 22 | Re6+ | Is the f-file open, semi-open, or closed? | semi-open for Black | files |
5k2/p7/6Pp/4R2P/1p1p1K2/3b4/1P2p3/8 b - - 3 48 | Bb5 | Does Black have any isolated pawns? | Yes: h6 | structure |
rn1qkb1r/pp1B1ppp/8/3Np3/4PPn1/8/PB4PP/1R1QK1NR b Kkq - 0 12 | Nxd7 | What is the material balance in this position? | White is up 2 pawns of material | material |
8/1p5k/4pP2/6B1/8/1P6/8/1n4K1 w - - 0 1 | f7 | Does White have any isolated pawns? | Yes: b3, f6 | structure |
r1bq3n/1p2Rr1p/p2p2pk/3N1p2/3Q1P2/6P1/P4PBP/4R1K1 b - - 9 22 | Qf8 | Is the Black king in check? | No | check |
r2q1r1k/pp2bp2/2b1p1pP/7P/3pNP2/3B4/PP2Q2K/2R2R2 w - - 3 24 | Rf3 | Does Black have any passed pawns? | Yes: d4 | structure |
6r1/5qk1/1Q6/pP1PpB1p/P3Pp2/2p2P2/8/5K2 b - - 0 51 | c2 | Are there any open files in this position? | Yes: g | files |
r4rk1/1nqn1ppp/p1N5/2NP2B1/1pp1P3/5P2/PPBQ3P/2KR3R b - - 0 19 | a4c5 | Identify any Black knight outposts on the board. | d3 | outposts |
1rb1rbk1/2qn1p1p/4p3/1p1pPp2/1P1Q4/2N2BB1/2P3PP/3R1R1K w - - 0 23 | Nxd5 | Is the move from d4 to d2 legal? | Yes | legality |
6k1/6pp/4p3/B7/3P4/1P6/2b3PP/6K1 b - - 0 32 | Bxb3 | Identify any Black knight outposts on the board. | d5 | outposts |
r4rk1/1p2qpbp/2n1p1p1/3p4/2PP4/pPB3P1/P3QPNP/2RR2K1 w - - 0 19 | Ne3 | Is the e-file open, semi-open, or closed? | semi-open for White | files |
2r3n1/ppN3R1/3p4/8/1K1q3k/1B6/PPP4P/r3n3 w - - 0 30 | e3d4 | Is the Black king in check? | No | check |
r1b1k2r/pp1nbppp/2p2n2/5p2/3P1B2/P1N1PN2/1P3PPP/R3KB1R w KQkq - 1 11 | Nd2 | Are there any open files in this position? | No | files |
r5k1/2pb2p1/1q1p1p1p/3Pp3/1pP1P3/1P2PN1P/r3R1PK/2RQ4 w - - 0 32 | Nh4 | Is the a-file open, semi-open, or closed? | open | files |
8/8/5pk1/1b6/6pP/PPP4K/8/8 w - - 0 58 | Kxg4 | What piece is on a1? | Empty | occupancy |
8/4R3/3p4/3p4/P2P4/6p1/4kp1p/7K b - - 11 28 | Kd2 | Is the Black king in check? | Yes | check |
4r1k1/1pp2p1p/pn1P1qp1/8/3P4/3Q4/PP1K2bP/RN2q3 w - - 0 25 | f2e1q | Is the White king in check? | Yes | check |
r7/1k2Q1p1/1Pp4p/4N3/4P3/2P1B3/5PPP/6K1 b - - 0 32 | f7e7 | Is the Black king in check? | Yes | check |
8/pp5p/2p1k1p1/2Pn1r2/3PpPRP/P7/1P1BK2P/8 b - - 0 28 | Ne7 | Identify any Black knight outposts on the board. | d3, f3, f5, h5 | outposts |
rn1q1rk1/pb2b3/2p1p2Q/1p2P1P1/2pP1P2/2P5/P5P1/R1B2K2 w - - 3 22 | g6 | Does Black have any passed pawns? | No | structure |
r4rk1/p3bppp/5n2/4B3/8/2N4q/PPP5/R2Q1RK1 b - - 0 18 | f4e5 | What is the material balance in this position? | Black is up 1 pawn of material | material |
7r/2pq1pk1/3p4/3P2P1/5rPp/1P3N1B/PQ5K/4R3 b - - 10 32 | e2b2 | Is the Black king in check? | Yes | check |
2rq1rk1/1b1nbpp1/p2p3p/3Pp3/NPP1P3/3B1n2/1B2QPPP/R1R3K1 w - - 0 21 | g5f3 | Is the Black king in check? | No | check |
rnbqk1nr/p1p2ppp/1p2p3/3pP3/1b1P2Q1/2N5/PPP2PPP/R1B1KBNR b KQkq - 1 5 | Bf8 | Is the Black king in check? | No | check |
2r1r1k1/5p2/R2p1qp1/4n2p/1Pn1P3/3p4/5PPP/R2QBBK1 b - - 1 29 | Qf4 | Is the move from e8 to h2 legal? | No | legality |
5r1r/pppqbkpp/2n1b3/3pP3/8/3Q1N2/PPP2PPP/RNB1R1K1 w - - 4 12 | Nc3 | Is the White king in check? | No | check |
3r4/p5Rp/2k2p2/8/8/2q1P3/P2r1PPP/5RK1 w - - 1 21 | h8d8 | Identify any White knight outposts on the board. | d4, f4 | outposts |
r1b1k1nr/pppp1ppp/2n5/2b1p3/2B1P3/5PPq/PPPP3P/RNBQK2R w KQkq - 0 6 | h4h3 | What is the material balance in this position? | Black is up 3 pawns of material | material |
2r3k1/pn2q2p/br1pp3/1p1p2p1/PP1Pp3/2P1P1P1/3N1P1P/R1Q1RBK1 b - - 1 20 | Nd8 | Is the White king in check? | No | check |
rnbqk2r/pp2ppbp/3p1np1/2p5/2B1P3/3P1N2/PPP2PPP/RNBQR1K1 b kq - 0 6 | Nc6 | Is the move from c8 to e6 legal? | Yes | legality |
r3k2r/pppbqp1p/2n1p1p1/3p4/3PnP2/1N2PN2/PPP1QP1P/2KR1BR1 b kq - 3 11 | Na5 | Does White have any passed pawns? | No | structure |
4r1k1/pp3pp1/2p3p1/8/3P1P2/2PKNn1P/PP3PQ1/8 b - - 0 33 | Ne1+ | What is the material balance in this position? | White is up 5 pawns of material | material |
8/p3k1pp/r7/2pB2p1/b1P5/6P1/R3PP1P/6K1 w - - 6 31 | f4 | Is the White king in check? | No | check |
r4rk1/2p1bppp/p4n2/3q4/PpP5/8/RPP1NPPP/2BQ1RK1 b - - 0 16 | Qxc4 | What is the material balance in this position? | White is up 1 pawn of material | material |
r4rk1/3q2pp/p2p1b2/1pp2R2/3pP1Q1/P2P4/1PP3PP/R1B3K1 b - - 0 17 | Be5 | What is the material balance in this position? | Equal | material |
5Q2/8/6k1/5Q2/6P1/8/4K3/8 b - - 2 65 | f3f5 | Is the Black king in check? | Yes | check |
r4rk1/5ppp/p1pb4/1p1n4/3P2b1/1BP1B1Pq/PP3PQP/RN2R1K1 b - - 6 17 | Qh5 | Does White have any isolated pawns? | No | structure |
7k/4NK2/r7/5BN1/8/8/8/8 b - - 102 114 | Rf6+ | Identify any White knight outposts on the board. | None | outposts |
r4rk1/pbpqbppp/1p6/3N4/2PP2n1/5N2/P4PPP/R1BQ1RK1 w - - 3 16 | Nxe7+ | Identify any White knight outposts on the board. | None | outposts |
2r1r1k1/pbq2ppp/1p2pb2/n6P/3PP3/P2B1N2/1B2QPP1/3RR1K1 b - - 0 19 | h6 | What piece is on e3? | Empty | occupancy |
8/8/4k2K/6PP/8/8/8/1r6 w - - 1 3 | g6 | Is the move from g5 to g8 legal? | No | legality |
rn1qk2r/1b2bpp1/p2p1n2/1p2p1N1/4P3/2N1B2P/PPP2P2/R2QKB1R w KQkq - 1 12 | Rg1 | Is the Black king in check? | No | check |
8/p1p1bk2/1pr3p1/5p2/P1P3Pp/3KP2P/1B3P2/2R5 b - - 0 31 | Rc5 | Does White have any passed pawns? | No | structure |
r2q1rk1/1p2bpp1/p1b2n1p/2pp2B1/8/P1PP3P/BP2NPP1/R2QR1K1 w - - 0 16 | Bh4 | Is the move from d1 to b1 legal? | Yes | legality |
2kr2nr/pp1qp1b1/3pb3/5pP1/3p1P1p/3P3P/PPPQN1B1/R1B1K2R b KQ - 1 16 | Bf7 | Identify any White knight outposts on the board. | h6 | outposts |
r5k1/3b1p1p/4p1pQ/8/4P3/qP6/1BP2PPP/2KN4 b - - 4 25 | Qf8 | Identify any White knight outposts on the board. | a4, c4 | outposts |
2k5/1p1n4/p1rB2p1/5p1p/5K1P/5P2/P5P1/3R4 b - - 2 36 | Rc2 | Does White have any passed pawns? | No | structure |
6k1/4b3/p5P1/5p1n/2p5/P1P5/1P3PP1/3R2K1 w - - 0 14 | Rd4 | What is the material balance in this position? | White is up 2 pawns of material | material |
6k1/3bq1r1/2pr1n2/2p1p1p1/p1P1P2P/P1N1P2P/2Q1NR1K/5R2 b - - 0 41 | g4 | What piece is on e8? | Empty | occupancy |
8/p3np1k/3pqp1N/2p3rP/4PR2/P1PP1Q2/6P1/6K1 b - - 0 37 | Qa2 | Does White have any passed pawns? | Yes: h5 | structure |
3r2k1/5p2/3q1P1p/P5p1/BPp3r1/7P/4Q1P1/5R1K b - - 0 53 | Rf4 | What piece is on f7? | Black Pawn | occupancy |
rnbqr1k1/3nbppp/p2pp3/6PQ/1p1NP3/1BN3R1/PPP2P1P/R1B1K3 w Q - 2 13 | Nxe6 | Is the move from g3 to g1 legal? | Yes | legality |
8/7r/8/8/5k1K/8/8/8 w - - 24 83 | g7h7 | Is the White king in check? | Yes | check |
r5k1/1bqnppbp/r1p2np1/1pPp4/1P1P4/1Q1BPN1P/1B2NPP1/2R2RK1 b - - 6 18 | Ne8 | Is the White king in check? | No | check |
r1b1k1nr/2p2pp1/p2bq2p/3pN3/3P1P2/8/PPP3PP/RNBQ1RK1 w kq - 3 12 | g6e6 | What is the material balance in this position? | White is up 1 pawn of material | material |
r2qkb1r/pppn1ppp/3p1n2/4p3/2BPP3/1Q6/PPP2PPP/RNB1K2R w KQkq - 3 7 | Bxf7+ | Is the move from b3 to a4 legal? | Yes | legality |
r1b1kbnr/ppp1qp2/2n5/4P1pp/5p2/5N1P/PPP1B1P1/RNBQ1RK1 b kq - 3 9 | e1g1 | What is the material balance in this position? | Black is up 1 pawn of material | material |
2k2n2/8/8/p3BKPp/1p5P/4r3/PR6/8 w - - 5 54 | Rg2 | What piece is on g5? | White Pawn | occupancy |
r3k2r/pp3ppp/4b3/8/1n1P4/8/PP1K1PPP/R4BNR b kq - 1 6 | Rc8 | What is the material balance in this position? | White is up 1 pawn of material | material |
5R2/1k6/2pp1P2/8/8/5n2/5rB1/7K b - - 1 64 | Ne5 | Identify any White knight outposts on the board. | None | outposts |
r4rk1/1b3pp1/p3pb2/1pq1p2Q/8/P1N1R3/1PP2PPP/R5K1 w - - 1 20 | Rh3 | Identify any Black knight outposts on the board. | None | outposts |
8/8/3B4/5p1p/p5kP/P1r3P1/4PK2/8 b - - 2 48 | Kh3 | Does White have any passed pawns? | No | structure |
r4r1k/ppp3b1/7n/3Bq1pp/2p5/5PPb/PP2N2P/R2Q1RK1 w - - 1 19 | g4h3 | What is the material balance in this position? | Black is up 4 pawns of material | material |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.