fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
8/5pkp/6p1/8/1Pr5/6P1/5P1P/4RK2 w - - 0 39 | c3c4 | Identify any White knight outposts on the board. | a5, c5 | outposts |
8/3bk3/8/4P2p/p4p1P/P1r2Bn1/1R3K2/6R1 w - - 4 57 | Rd1 | What piece is on h2? | Empty | occupancy |
3k4/7R/8/2p5/2Pp1P2/3P2P1/Pr4rP/R5K1 w - - 9 40 | f2g2 | Is the Black king in check? | No | check |
2r5/8/8/4k2p/5p2/R1P1K2P/6P1/8 w - - 0 39 | Kf3 | Is the move from h3 to h8 legal? | No | legality |
4rrk1/ppp5/7p/2Nnbpp1/5p2/2P4P/PP4P1/R1B2RK1 w - - 0 19 | g7g5 | What is the material balance in this position? | Black is up 2 pawns of material | material |
3r2bk/1p1P2rp/8/p1P3R1/1p2N3/7B/P2Q1P1K/q7 b - - 5 45 | a4 | Is the h-file open, semi-open, or closed? | semi-open for White | files |
5r1k/5bRp/2p1p3/p6r/1n6/2B5/PPP5/2K5 w - - 1 2 | Rg5+ | Is the Black king in check? | No | check |
2k5/5Q2/p1p1p2p/1p1p4/8/1PP3qN/P5PP/7K w - - 0 39 | e5g3 | What is the material balance in this position? | White is up 2 pawns of material | material |
1kbrqb1r/ppp5/5pp1/P1Np1p1p/1P1P4/3QP3/2P1NPPP/RR4K1 b - - 0 16 | Rh7 | Does Black have any passed pawns? | No | structure |
8/pp3qbk/5npp/8/2PP4/3Q4/PP3BP1/5NK1 b - - 2 31 | e4d3 | What is the material balance in this position? | White is up 1 pawn of material | material |
rnbqkb1r/pp2pppp/2p5/8/4Q3/3B1N2/PPP2PPP/R1B1K2R b KQkq - 0 8 | Nd7 | Identify any White knight outposts on the board. | None | outposts |
3r4/1k4pp/p1p2p2/3N4/2P2B2/6P1/2K2P1P/7R b - - 1 24 | d1c2 | What is the material balance in this position? | White is up 5 pawns of material | material |
2rq1rk1/1p2pb2/5p1b/pPnP1Np1/2p1P3/P1N1B2P/2Q2P2/R4RK1 b - - 1 25 | Kh7 | Identify any Black knight outposts on the board. | d3, h4 | outposts |
r3k2r/pp3ppp/4b3/8/1n1P4/8/PP1K1PPP/R4BNR b kq - 1 6 | Rc8 | Are there any open files in this position? | Yes: c, e | files |
r4k1r/p1N1bppp/8/2npq3/2pB4/2P5/PPb1BPPP/R4RK1 w - - 0 21 | Bxe5 | Identify any Black knight outposts on the board. | None | outposts |
r7/4kppp/1p1p1n2/p3p3/RPr1P3/2N2P2/1PP1K1PP/R7 w - - 0 23 | g4 | Is the move from c3 to d1 legal? | Yes | legality |
r2b1rk1/1p3p1p/p7/3P1p1q/P1PQ1R2/1P6/2P4P/R6K w - - 0 25 | Rg1+ | Is the move from h1 to g1 legal? | Yes | legality |
6r1/p7/6k1/3p2r1/8/1P2P1PQ/P4P1P/R4RK1 w - - 5 38 | h5g6 | What is the material balance in this position? | White is up 13 pawns of material | material |
6r1/6pk/p2Np2p/qp1bPp2/3P1P2/P2Q3P/2R3PK/8 w - - 0 37 | Rc5 | What piece is on a4? | Empty | occupancy |
7k/pp4pP/2n1p3/5r2/R2p4/BP3nQ1/P2q1P1P/2R4K b - - 2 32 | a5 | What is the material balance in this position? | White is up 2 pawns of material | material |
8/1k2Kp2/8/1P2Bp2/7P/8/6n1/8 w - - 0 2 | h5 | Is the move from e5 to h8 legal? | Yes | legality |
3r1k2/pp1n1pb1/4r2p/2p1P3/2P3RP/2B2N2/PPK5/5R2 b - - 3 29 | Bh8 | Is the Black king in check? | No | check |
r1br2k1/pp3ppn/4p3/1Pn5/2p5/2N1PN2/1P3PPP/R1B2K1R w - - 0 14 | Ke2 | What piece is on a1? | White Rook | occupancy |
1r5r/pp6/4Np1p/4p2k/2B1P2P/4bP2/PPP5/1K1R3R b - - 3 20 | c1b1 | What is the material balance in this position? | White is up 4 pawns of material | material |
8/1pr1p2k/5pbb/pP1Pq3/P1N1P1P1/5PN1/1pQ3K1/3R4 b - - 0 40 | Bc1 | Is the Black king in check? | No | check |
rn1qk1nr/5pbp/b2p2p1/pppP4/8/PBN2Q2/1PP1NPPP/R1B1K2R w KQkq - 0 11 | Ne4 | What is the material balance in this position? | Equal | material |
6k1/1pr5/4PP2/3pNK2/3P4/b7/8/8 b - - 1 48 | Bd6 | Identify any Black knight outposts on the board. | None | outposts |
8/5pk1/3Kr1p1/6R1/5RP1/8/6r1/8 w - - 6 48 | Kc7 | Is the Black king in check? | No | check |
r3r1k1/ppp1q1pp/2p1np2/2B1p2b/2N1P3/3P1N1P/PPP1QPP1/R4RK1 b - - 0 17 | Qxc5 | Is the move from e8 to g8 legal? | No | legality |
r2q1rk1/p2nbppp/b1p1pn2/3p4/P1PP4/N5P1/3NPPBP/R1BQR1K1 b - - 3 12 | Bb4 | Identify any Black knight outposts on the board. | None | outposts |
r1r5/4kp1p/pn2pp2/3b4/1P1N4/4PP2/3R2PP/R4BK1 b - - 1 26 | Bc4 | Does White have any isolated pawns? | Yes: b4 | structure |
3r4/2b3kp/8/1R1B4/5p2/8/P4P1P/6K1 b - - 4 31 | Rb8 | Does White have any passed pawns? | Yes: a2 | structure |
r2q1rk1/1p1bbppp/p2p1n2/2pPp3/P1N5/3P2PP/1PP2PB1/R1BQ1RK1 w - - 0 14 | a5 | Is the move from f2 to f3 legal? | Yes | legality |
5rk1/p7/7p/2pP1n2/1R4p1/3N1pP1/5P1P/5K2 w - - 0 37 | Rxg4+ | Identify any White knight outposts on the board. | c6, e6 | outposts |
6k1/R5pp/1p6/8/2P5/1P2P1P1/P3P2P/3n2K1 b - - 0 29 | f2e3 | What is the material balance in this position? | White is up 6 pawns of material | material |
2Q3k1/p4p1p/6p1/4p3/P3q2P/4B1P1/5P1K/1r6 b - - 4 38 | a6c8 | Is the Black king in check? | Yes | check |
k7/1R5p/6p1/8/7K/r5r1/8/8 w - - 11 48 | Rb8+ | Does White have any passed pawns? | No | structure |
rnbqkbnr/ppp2ppp/8/3P4/5p2/8/PPPP2PP/RNBQKBNR w KQkq - 0 4 | Bb5+ | What piece is on d7? | Empty | occupancy |
r1b2rk1/1pqp1ppp/p1N1pn2/8/Nb2P3/4B3/PPP1BPPP/R2Q1RK1 b - - 0 10 | dxc6 | Are there any open files in this position? | No | files |
7k/5Q2/7p/p3P3/Pp6/1P5P/6P1/2n4K w - - 3 47 | h7h8 | Identify any White knight outposts on the board. | d6, f6 | outposts |
rn1qkb1r/pppn1ppp/8/2P5/3QN1b1/5N2/PP3PPP/R1B1KB1R b KQkq - 0 9 | Qe7 | Is the move from b7 to b5 legal? | Yes | legality |
rnbqkbnr/pp1p1ppp/8/2p5/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - 0 4 | Bc4 | Is the move from f1 to d3 legal? | Yes | legality |
rnbqkb1r/ppp1pppp/8/3p4/3Pn2B/5N2/PPP1PPPP/RN1QKB1R b KQkq - 5 4 | Qd6 | Is the b-file open, semi-open, or closed? | closed | files |
2bB2k1/8/p1r4p/1p2bPp1/2p5/5P1P/P5P1/2R1RK2 b - - 0 35 | Bg3 | Is the e-file open, semi-open, or closed? | open | files |
8/4Q3/7k/2PB4/3qp3/5rBK/8/8 w - - 9 54 | Qh4+ | Identify any Black knight outposts on the board. | d3, f3 | outposts |
r3kb1r/1pp1pppp/p1nq1n2/5b2/3P4/P1N2N2/1PP1BPPP/R1BQK2R w KQkq - 0 8 | h3 | Identify any White knight outposts on the board. | None | outposts |
7R/8/2p2p2/3p1k2/3P3P/4P1K1/2r2P2/8 w - - 3 59 | Rg8 | Does White have any isolated pawns? | Yes: h4 | structure |
r3k3/p4pp1/2p1p3/2b2q2/2N2K2/3P1P1r/PPP1Q3/R4R2 w q - 3 22 | h5f5 | Is the White king in check? | Yes | check |
rn1qkbnr/pbpppppp/1p6/8/5P2/4PN2/PPPP2PP/RNBQKB1R b KQkq - 2 3 | d6 | Are there any open files in this position? | No | files |
3r2k1/p4ppp/b2Np3/3n4/n2N4/6P1/4PPBP/1R4K1 w - - 0 25 | Nc6 | Identify any White knight outposts on the board. | None | outposts |
2r1r1k1/1p1b2pp/p1q2p2/P2pp3/1P1P4/1NP1Q3/5PPP/R1R3K1 w - - 0 29 | Nc5 | Identify any White knight outposts on the board. | None | outposts |
4r3/p4p1k/1p4p1/2p1PPRp/7P/3r3K/PP3R1Q/3q4 w - - 1 32 | d4d3 | Identify any Black knight outposts on the board. | d4, h5 | outposts |
r1q1r3/1pp1p1k1/4Pppp/2NQ4/p4PPB/7P/1nP5/4R1K1 w - - 1 31 | g5 | Are there any open files in this position? | Yes: d | files |
r3kb1r/5p1p/b3p1p1/2ppP3/R4P2/pPN1BQ2/Pq4PP/2R4K w kq - 0 25 | Nxd5 | Are there any open files in this position? | No | files |
3B4/pp1P1k1p/5pp1/2p5/2P3P1/1P5P/P7/3b2K1 w - - 1 38 | Bxf6 | What piece is on h5? | Empty | occupancy |
r4rk1/2pq1pp1/p1n2b1p/P2Bp3/1pN1P1n1/3PPN2/1PP3P1/R2QR1K1 w - - 4 18 | c3 | Does White have any isolated pawns? | Yes: g2 | structure |
r4rk1/1pp1qpp1/p2p3p/4p2n/3PPn2/1PP2NB1/2PQ1PPP/R3R1K1 w - - 1 17 | Bxf4 | What piece is on f1? | Empty | occupancy |
5r2/5p1k/2rpb2p/p1p2p2/2Pp3N/1P3R2/P5PP/2K1R3 b - - 3 30 | d3f3 | What is the material balance in this position? | Black is up 2 pawns of material | material |
r2q1rk1/ppp2ppp/2np1n2/4p3/2B1P1b1/2NPPN2/PPP3PP/R2Q1RK1 w - - 1 9 | Qe1 | Is the f-file open, semi-open, or closed? | semi-open for White | files |
2k2b1r/1pp2rpp/p7/3pBP2/5P2/8/PPP4P/2KR2R1 w - - 3 19 | Rxd5 | What piece is on a6? | Black Pawn | occupancy |
r1b3k1/ppq3p1/2n1pr1p/3p4/5P2/PNNR4/1PP3PP/4QR1K w - - 1 20 | Qe3 | Identify any Black knight outposts on the board. | None | outposts |
5rk1/5Rpp/3p4/3B2q1/R3P1n1/8/P5PP/2r2Q1K b - - 2 31 | h5 | What piece is on h7? | Black Pawn | occupancy |
8/6pp/2br1p2/1pk1p2P/1R2P1B1/5P2/P3K1P1/8 w - - 1 31 | a3 | What piece is on e2? | White King | occupancy |
3r4/ppp3pk/5q1p/8/2n1r3/2P1PP2/PPQ1NK1P/R6R b - - 0 25 | Qh4+ | What is the material balance in this position? | White is up 1 pawn of material | material |
r3k2r/pp1b3p/2nb1q2/5p2/6p1/3BP3/PPQB1PPP/2KR2NR w kq - 0 16 | d8f6 | What is the material balance in this position? | White is up 1 pawn of material | material |
8/R4R1p/3pp1k1/3p2p1/1q1Pp3/p3P1P1/5P1P/5NK1 w - - 1 33 | g4 | Is the move from a7 to d3 legal? | No | legality |
r2qk2r/2pb1pp1/p1pp1n1p/2b5/3NP2B/2N5/PPP2PPP/R2QK2R b KQkq - 1 11 | O-O | Is the move from g7 to g5 legal? | Yes | legality |
rnb1kb1r/p2p3p/3p1Pp1/q1pNn1B1/p7/8/2PN1PPP/1R1QKB1R w Kkq - 3 16 | Rb5 | Does White have any passed pawns? | Yes: f6 | structure |
3r1r2/5p1k/6p1/3Np2p/1n2P2P/6P1/R4PK1/3R4 w - - 1 34 | Rad2 | What piece is on e8? | Empty | occupancy |
rnbqk2r/1pb1n1pp/p1p2p2/3p4/2PPp1P1/1QN4P/PP1BPPB1/2KR2NR b kq - 3 10 | b5 | Does Black have any passed pawns? | No | structure |
8/2q1k1p1/1p3b1p/p2Q1B1P/P1Pp4/3P2P1/5P2/6K1 b - - 28 66 | Be5 | Does Black have any isolated pawns? | Yes: d4 | structure |
2k5/pbp2pQ1/1p2q3/3p1p2/PN1P1P2/BPP4r/3N3r/R3KR2 w - - 1 34 | d7e6 | Is the Black king in check? | No | check |
r2q1rk1/1bpp1ppp/p5n1/1pb1P3/4PP2/1BP5/PP4PP/RNBQ1R1K b - - 2 12 | Bxe4 | Identify any White knight outposts on the board. | None | outposts |
r1b1kb1r/ppp3pp/4p3/3nP1N1/3N4/1P6/PB3PPP/R2K3R b - - 8 17 | Ke7 | Is the d-file open, semi-open, or closed? | open | files |
2R5/4rppk/P6p/3p4/8/P5PP/5PK1/8 w - - 1 33 | Kf3 | Is the b-file open, semi-open, or closed? | open | files |
8/1r4k1/3p2pp/2p2p2/4nP2/3qRN1P/1P4PK/4Q3 b - - 14 34 | Qc4 | Is the move from d3 to e7 legal? | No | legality |
7R/5p2/8/P5k1/K6p/1P2r3/8/8 b - - 2 51 | Re1 | Is the move from e3 to e4 legal? | Yes | legality |
8/5pk1/3Kr1p1/6R1/5RP1/8/6r1/8 w - - 6 48 | Kc7 | What piece is on a4? | Empty | occupancy |
rnbqkb1r/ppp2pp1/4pn1p/3p4/2PP1B2/2N5/PP2PPPP/R2QKBNR w KQkq - 2 5 | c5 | Identify any Black knight outposts on the board. | None | outposts |
r2q1rk1/1b1nbppp/pp3n2/3p2B1/2pP4/2N1PN2/PP3PPP/1BRQR1K1 w - - 0 13 | Ne5 | Are there any open files in this position? | No | files |
3r1rk1/pB3ppp/1q2p3/2p1P3/8/P1P1Q3/1P4PP/R3R1K1 b - - 0 22 | Qxb7 | What is the material balance in this position? | White is up 3 pawns of material | material |
rn1qkb1r/4pppp/p1p2n2/1p1p4/2PP2bN/1QN1P3/PP3PPP/R1B1KB1R w KQkq - 0 8 | cxd5 | Does White have any isolated pawns? | No | structure |
rn2k2r/pp2bppp/2p1bn2/q2p2B1/2B4Q/2N2N2/PPP2PPP/2KRR3 w kq - 6 11 | Nd4 | Identify any White knight outposts on the board. | None | outposts |
rn2kb1r/pp1b3p/2pp1q2/6p1/2BP1p2/5N1P/PPP1Q1P1/R1B1K2R b KQkq - 1 12 | d1e2 | What is the material balance in this position? | Black is up 1 pawn of material | material |
R2Q4/5pk1/2r3p1/1p5p/4q2P/6P1/5PK1/8 w - - 4 43 | Kh2 | Is the White king in check? | Yes | check |
r2q1rk1/pp2n1pp/4bp2/4Pp2/1P1P4/P4N2/5PPP/R1BQR1K1 w - - 0 17 | exf6 | What piece is on b4? | White Pawn | occupancy |
r2q1rk1/pp2n1bp/3p4/2p2p2/2Pn2b1/2NPB3/PP1Q2BP/2K2RNR b - - 1 15 | Qa5 | Are there any open files in this position? | Yes: e, g | files |
8/k3n3/6p1/p4p1p/b3p2P/N1K1P1P1/4BP2/8 w - - 8 78 | Kd4 | Is the move from f2 to f3 legal? | Yes | legality |
1r3r1k/4qp2/p2Rb2N/4pB1P/1P2P3/4B3/1PP5/2KR4 w - - 3 29 | Nxf7+ | Is the move from e3 to b6 legal? | Yes | legality |
r1q2rk1/1b3p2/p2p1RnQ/1pp1p3/2P1P3/1B1PP2p/PP4PP/R5K1 w - - 0 20 | gxh3 | Is the g-file open, semi-open, or closed? | semi-open for Black | files |
2k3r1/pN3pP1/8/8/1ppq4/6P1/1P3P1P/R2R2K1 b - - 1 27 | Qxb2 | What piece is on d7? | Empty | occupancy |
r3nrk1/p2q1pb1/1p1p3p/2p1p1p1/2P1P1P1/1PNP3P/P2N1PK1/R2Q1R2 w - - 1 16 | Nd5 | Identify any White knight outposts on the board. | None | outposts |
2b1rr1k/p4qpp/1p1b4/1B1p4/3NpP2/4B1Q1/PP5P/3RR1K1 b - - 7 27 | Re7 | Is the move from b6 to h5 legal? | No | legality |
r1b1k2r/ppp2ppp/2np1q1n/8/2B1P3/B1Q2N2/P4PPP/R4RK1 w kq - 1 12 | e5 | Is the e-file open, semi-open, or closed? | semi-open for Black | files |
r1b1r1nk/1pq4p/p5p1/3BppB1/1Q6/P7/1PP3PP/2KR1R2 w - - 6 27 | Qb3 | Identify any White knight outposts on the board. | None | outposts |
k6r/pp1bnrp1/2n1pp1p/q2pP2P/P1pP1PP1/Q1P1B3/2P1N1B1/R3K2R w KQ - 2 18 | Kd2 | Is the move from e2 to h7 legal? | No | legality |
rnbqk1nr/pp3pbp/3pp1p1/3N4/3NPB2/8/PPP2PPP/R2QKB1R w KQkq - 0 9 | Nb5 | Does Black have any passed pawns? | No | structure |
2r3k1/p1r1pp1p/b2p2p1/P2P4/B3P3/3q1P1P/5QP1/RR4K1 w - - 2 4 | Bc6 | Is the c-file open, semi-open, or closed? | open | files |
rn3knr/pq3ppp/2p5/8/4pp1P/p2P1P2/RPP1KP2/8 b - - 1 19 | f1e2 | Identify any White knight outposts on the board. | c4 | outposts |
4rrk1/4qp1p/2bnp1pP/ppNp4/3P4/P1P1P3/4BPPQ/R3R1K1 b - - 6 24 | f6 | Is the b-file open, semi-open, or closed? | semi-open for White | files |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.