image
imagewidth (px)
512
512
board_state
stringlengths
19
62
active_color
stringclasses
2 values
castling_rights
stringclasses
16 values
en_passant_target_square
stringclasses
16 values
best_continuation
stringlengths
2
100
r6k/pp2r2p/4Rp1Q/3p4/8/1N1P2b1/PqP3PP/7K
w
-
-
Rxe7 Qb1+ Nc1 Qxc1+ Qxc1
5rk1/1p3ppp/pq1Q1b2/8/8/1P3N2/P4PPP/3R2K1
b
-
-
Rd8 Qxd8+ Bxd8
8/5R2/1p2P3/p4r2/P6p/1P3Pk1/4K3/8
b
-
-
Re5+ Kf1 Rxe6
r2qr1k1/b1p2ppp/p5n1/P1p1p3/4P1n1/B2P2Pb/3NBP1P/RN1QR1K1
w
-
-
Bxg4 Bxg4 Qxg4
8/8/4k1p1/2KpP2P/5P2/8/8/8
b
-
-
gxh5 f5+ Kxe5 f6 Kxf6
4r3/1k6/pp3P2/1b5p/3R1p2/P1R2P2/1P4PP/6K1
b
-
-
Re1+ Kf2 Rf1#
r4rk1/pp2Bppp/2n1b3/q1pp4/8/P1Q2NP1/1PP1PP1P/2KR3R
b
-
-
Qxc3 bxc3 Nxe7
r1bq3r/pp1nbkp1/2p1p2p/8/2BP4/1PN3P1/P3QP1P/3R1RK1
w
-
-
Qxe6+ Kf8 Qf7#
3r3r/pQNk1ppp/1qnR1n2/1B6/8/8/PPP3PP/5R1K
b
-
-
Kxd6 Qxb6 axb6
5r1k/5rp1/p7/1b2B2p/1P1P1Pq1/2R3Q1/P3p1P1/2R3K1
b
-
-
Rxf4 Bxf4 Rxf4
8/7R/8/5p2/4bk1P/8/2r5/5KR1
b
-
-
Kf3 Ke1 Rc1+ Kd2 Rxg1
3R4/8/8/KB2b3/1p6/1P2k3/3p4/8
b
-
-
Bc7+ Kxb4 Bxd8
4r3/5pk1/1Q3np1/3p3p/2q5/P4N1P/1P3RP1/7K
b
-
-
Ne4 Kg1 Nxf2
r4rk1/5ppp/1np2q2/p1b5/2p1B3/P7/1P3PPP/R1BQ1RK1
w
-
-
Qh5 h6 Qxc5
2kr3r/p4p2/1p2p2p/1N1p2p1/3Q4/1P1P4/2q2PPP/5RK1
w
-
-
Qa1 a5 Rc1
6k1/5ppp/r1p5/p1n1rP2/8/2P2N1P/2P3P1/3R2K1
w
-
-
Rd8+ Re8 Rxe8#
2r2rk1/pbq1bppp/8/8/2p1N3/P1Bn2P1/2Q2PBP/1R3RK1
w
-
-
Rxb7 Qxb7 Nf6+ Bxf6 Bxb7
8/3B2pp/p5k1/6P1/1ppp1K2/8/1P6/8
w
-
-
Be8#
N6r/1p1k1ppp/2np4/b3p3/4P1b1/N1Q5/P4PPP/R3KB1R
b
KQ
-
Bxc3#
2r3k1/2r4p/4p1p1/1p1q1pP1/p2P1P1Q/P6R/4bB2/2R3K1
w
-
-
Qxh7+ Rxh7 Rxc8+ Kg7 Rc7+
7r/6k1/2b1Rp2/8/P1N3p1/5nP1/5P2/Q4K2
b
-
-
Rh1+ Ke2 Rxa1
5r1k/pp4pp/5p2/1BbQp1r1/7K/7P/1PP3P1/3R3R
b
-
-
Bf2+ g3 Bxg3#
2r3k1/p4pp1/Qq2p2p/b1Np4/2nP1P2/4P1P1/5K1P/2B1N3
w
-
-
Qxc8+ Kh7 Qb7
6k1/1p4p1/1p3p1p/2r1p3/2n5/r3PN2/2RnNPPP/2R3K1
w
-
-
Nxd2 Nxd2 Rxd2 Rxc1+ Nxc1
1rb3k1/q4rP1/4p2p/3p3p/3P1P2/2P5/2QK3P/3R2R1
w
-
-
Qh7+ Kxh7 g8=Q#
6nr/p4p1p/k1p5/1p6/1QN5/2P1P3/4KPqP/8
w
-
-
Qa5+ Kb7 Nd6+ Kb8 Qd8#
r3k2r/pb1p1ppp/1b4q1/1Q2P3/8/2NP1PP1/PP4P1/R1B2R1K
b
kq
-
Qh5#
r4rk1/p3ppbp/Pp1q1np1/3PpbB1/2B5/2N2P2/1PPQ2PP/3RR1K1
b
-
-
Qc5+ Kh1 Qxc4
k1r1b3/p1r1nppp/Bp1qpn2/2Np4/1P1P4/PQR1PN2/5PPP/2R3K1
b
-
-
bxc5 Bxc8 c4
8/4R3/p4kpp/3B4/5q2/8/5P1P/6K1
w
-
-
Rf7+ Ke5 Rxf4
r3kb1r/pppqpn1p/5p2/3p1bpQ/2PP4/2N1P1B1/PP3PPP/R3KB1R
b
KQkq
-
Bg4 Qxg4 Qxg4
r5k1/pp4pp/4p1q1/4p3/3n4/P3Q1P1/1PP4P/2KR1R2
b
-
-
Qxc2#
r7/2p3rk/p2p1q1p/Pp1P4/1P2P3/2PQ4/6R1/R5K1
w
-
-
e5+ Qg6 Rxg6
8/8/kp6/p4pQp/q7/7P/3r2P1/4R2K
w
-
-
Qxd2
r3brk1/5pp1/p2qpn1p/P2pn3/2pP4/2P1PN2/5PPP/RB1QK2R
w
KQ
-
dxe5 Qe7 exf6
r3k2r/ppq1bppp/4pn2/2Ppn3/1P4bP/2P2N2/P3BPP1/RNBQ1RK1
w
kq
-
Nxe5 Qxe5 Bxg4
7r/p4pk1/1pp3p1/8/6q1/4Q3/PP1R1P1r/5KN1
w
-
-
Qe5+ f6 Qc7+ Kh6 Qxh2+
3r1rk1/1b3pp1/3p4/p3nPPQ/4P3/3q1BN1/8/2R2RK1
w
-
-
f6 Nxf3+ Rxf3
r3qrk1/2p2pp1/p2bpn1p/2ppN3/3P1Pb1/1PP1P1B1/P2N2PP/R2Q1RK1
w
-
-
Nxg4 Nxg4 Qxg4
r3kbnr/ppp1qppp/2n5/1B1pP3/5B2/4PQ2/PPP2PPP/RN2K2R
b
KQkq
-
Qb4+ Nc3 Qxb2
r4rk1/pp3ppp/3p1q2/P1P1p3/2B5/2B2n2/2P2P1P/R2Q1R1K
b
-
-
Qf4 Qxf3 Qxf3+
8/8/1p6/k7/P7/1KR4r/8/8
b
-
-
Rxc3+ Kxc3 Kxa4 Kb2 Kb4
8/6p1/2B2n2/3b2k1/3B4/6K1/4P3/8
w
-
-
Bxf6+ Kf5 Bxd5
4r1k1/1p2R1p1/p2p2Pp/P1pP4/8/1R3p2/1P1q3P/5B1K
w
-
-
Rxe8#
8/7p/4k3/pb1p1pPB/1n1P3P/N1p1P3/4K3/8
w
-
-
Nxb5 c2 Kd2
r6k/q1p2p1p/1b2bPr1/p1ppP2Q/3P2p1/4B3/PP2NRPP/3R2K1
w
-
-
Nf4 cxd4 Nxg6+ fxg6 Qh6
r2r2k1/1p2qppp/2n1p3/5Q2/p2P4/P4N2/BP3PPP/2R1R1K1
b
-
-
exf5 Rxe7 Nxe7
8/6k1/1R5p/5p1P/5P1K/6P1/8/r7
b
-
-
Rh1#
2nk4/8/2PBp3/1pK1P1p1/1P4Pn/8/8/8
w
-
-
Kxb5 Ng2 Ka6 Ne3 Kb7
1r5r/p3kp2/4p2p/4P3/R4Pp1/6P1/P1P4P/4K2R
b
K
-
Rb1+ Kf2 Rxh1 Rxa7+ Kf8
2r2rk1/5ppp/bq2p3/p2pP1N1/Pb1p2P1/1P2P2P/2QN4/2R1K2R
w
K
-
Qxh7#
8/3pk3/R7/1R2PK1p/2PPn1r1/8/8/8
b
-
-
Ng3#
6k1/Q2bqr1p/2rpp1pR/p7/Pp2P3/1B3P2/1PP3P1/2KR4
b
-
-
Qg5+ Kb1 Qxh6
1r3k1r/pNqnppb1/6pn/2p3Np/7P/2P2Q2/PP3PP1/R1B1K2R
w
KQ
-
Ne6+ Kg8 Nxc7
2r5/pR5p/5p1k/4p3/4R3/B4nPP/PP3P2/1K6
b
-
-
Nd2+ Ka1 Rc1#
8/6pk/7p/2pq4/3p4/5PP1/P3QK1P/8
w
-
-
Qe4+ Qxe4 fxe4
r1b1k1nr/1pp2ppp/p1pb1q2/4p3/3PP3/5N2/PPP2PPP/RNBQ1RK1
w
kq
-
dxe5 Bxe5 Bg5 Qd6 Nxe5 Qxd1 Rxd1
6k1/r1b1q3/2p3p1/2Pp4/1P2p1n1/2B1P3/NQ6/2K4R
w
-
-
Rh8+ Kf7 Rh7+ Ke8 Rxe7+
rn3rk1/p5pp/3N4/4np1q/5Q2/1P6/PB1P1KP1/2R4R
b
-
-
Nd3+ Ke3 Nxf4 Rxh5 Nxh5
r3kb1r/p4ppp/b3p3/2pq4/3Q4/4BN2/PPP2PPP/R3K2R
w
KQkq
-
Qa4+ Bb5 Qxb5+
7R/1p2k2p/p2n2p1/4K3/8/6P1/P6P/8
b
-
-
Nf7+ Ke4 Nxh8
r1b1k2N/ppp3pp/2n5/2bp4/7q/1B4n1/PPPP1P1P/RNBQR1K1
b
q
-
Ne4 Rxe4+ dxe4 Qh5+ Qxh5 Bf7+ Qxf7
6rk/pp6/2n5/3ppn1p/3p4/2P2P1q/PP3QNB/R5RK
b
-
-
Ng3+ Qxg3 Rxg3
r1bqk2r/pp1nbppp/3p4/1B1p4/3P1B2/5N2/PPP2PPP/R2QK2R
b
KQkq
-
Qa5+ Qd2 Qxb5
r2qr1k1/ppp2ppp/4P3/8/1nP2Q2/2N2N1P/PP3KP1/R4R2
b
-
-
Nd3+ Kg1 Nxf4
2r2rk1/6pp/3Q1q2/8/3N1B2/6P1/PP1K3P/5R2
b
-
-
Qxd6 Bxd6 Rxf1
3r2k1/4nppp/pq3b2/1p2p3/2r2P2/2P1NR2/PP1Q2BP/3R2K1
w
-
-
Qxd8+ Qxd8 Rxd8#
rnbqkb1r/pppp2pp/8/4P3/2B5/4pQ2/PPPP2PP/R1B1K1NR
b
KQkq
-
Qh4+ Kd1 Qxc4
8/1N3k2/6p1/8/2P3P1/pr6/R7/5K2
b
-
-
Rb1+ Ke2 Rb2+ Kd1 Rxa2
4r3/p5k1/2R4p/2Pp4/1P1pr1P1/P6P/8/3R3K
b
-
-
Re1+ Rxe1 Rxe1+ Kg2 d3
4qk2/1b3R2/p7/1p2Q3/4P2P/P2P3K/2r5/3R4
b
-
-
Qxf7 Qh8+ Ke7
8/5k2/4R2p/p7/5rPK/8/7P/8
w
-
-
Rxh6 Rf6 Rh7+ Kg6 Ra7
r1bk2r1/ppq2NQp/3bpn2/1Bpn4/5P2/1P6/PBPP2PP/RN2K2R
b
KQ
-
Ke7 Qxg8 Nxg8
3r4/R7/2p5/p1P2p2/1p4k1/nP2K3/P3NP2/8
b
-
-
Nc2#
8/7R/5p2/p7/7P/2p5/3k2N1/1K6
b
-
-
c2+ Ka2 c1=Q Rd7+ Ke2
2kr2r1/1bp4n/1pq1p2p/p1P5/1P3B2/P6P/5RP1/RB3QK1
b
-
-
Rd1 Qxd1 Rxg2+ Kf1 Rg1+ Ke2 Rxd1
5rk1/5ppp/1p6/1q3P1Q/2pp3P/6R1/6PK/8
w
-
-
Rxg7+ Kxg7 f6+ Kxf6 Qxb5
1r4k1/p4ppp/2Q5/3pq3/8/P6P/2PR1PP1/1R4K1
b
-
-
Rxb1+ Rd1 Rxd1#
r4rk1/5pbp/p1n1p1p1/2p3NP/1p1q1B2/3P3Q/PPP3P1/R3R1K1
w
-
-
Be3 Qf6 Rf1 Qe5 hxg6 Qxe3+ Qxe3
8/4kr2/R2p4/1p1Pp3/5pp1/3K1P2/PPP5/8
w
-
-
Ra7+ Kf6 Rxf7+ Kxf7 fxg4
r2r2k1/2q1bpp1/3p3p/1ppn4/1P1BP3/P5Q1/4RPPP/R5K1
w
-
-
Qxg7#
4rr1k/p1Qn2pp/3p1q2/8/8/2P5/PP3PPP/RN3RK1
b
-
-
Qxf2+ Rxf2 Re1+ Rf1 Rexf1#
5Q2/8/1bk1p1p1/5p2/3p4/5qPK/7P/8
w
-
-
Qa8+ Kd6 Qxf3
3q2k1/3r4/pp3p1Q/2b1n3/P3N3/2P5/1P4PP/R6K
w
-
-
Nxf6+ Qxf6 Qxf6
8/2k3n1/K2p2p1/2pP2Pp/2P4P/7B/8/8
b
-
-
Kd8 Kb5 Nf5
6k1/p3b2p/1p1pP3/2P3P1/2np3B/P6P/3Q3K/8
b
-
-
Nxd2 c6 d5 g6 Bd6+
4r1k1/ppq3pp/2p2p2/4r3/4p1Q1/P5RP/1P3PP1/3R2K1
w
-
-
Rd7 Qxd7 Qxd7
2q3k1/4br2/6pQ/1p1n2p1/7P/1P4P1/1B2PP2/6K1
w
-
-
Qh8#
5rk1/1p2p2p/p2p4/2pPb2R/2P1P3/1P1BKPrR/8/8
w
-
-
Rxg3+ Bxg3 Rg5+ Kf7 Rxg3
r1b2rk1/p3pp2/2B5/2Qpq3/3N2pp/4b3/2P2PPP/1R2K2R
w
K
-
fxe3 Qxe3+ Kd1
3r1rk1/1p4Rp/p2bp3/1q2Np2/3P4/1P5Q/5PPP/4R1K1
b
-
-
Kxg7 Qg3+ Kh8
r6k/2q3pp/8/2p5/R1np4/7P/2PB1PP1/6K1
w
-
-
Rxa8+ Qb8 Rxb8#
5k2/p4pp1/1qn3r1/3pP2p/3N1P2/2PQ4/Pr3RPP/R5K1
b
-
-
Rxf2 Kxf2 Nxd4 Qxd4 Qb2+
2rr4/5pk1/p1Q1N1pp/1p4q1/3pP3/1B1P4/PPP3PP/6RK
b
-
-
fxe6 Qb7+ Kh8
r5k1/2p1pp2/pp4p1/1q5r/5P2/2QP2R1/PP6/1K4R1
w
-
-
Rxg6+ fxg6 Rxg6+ Kf7 Qg7+ Ke8 Qg8+ Kd7 Qe6+ Kd8 Rg8+
r1b1qrk1/pp1n1pbp/2pp1np1/4P3/2P2B2/2NBPN1P/PP3PP1/R2Q1RK1
b
-
-
dxe5 Bh2 e4
3rk2r/2qn2p1/p1Q1p3/3n3p/8/8/PP4PP/5R1K
w
k
-
Qxe6+ Ne7 Qf7#
8/8/1p1k1p1p/3np3/2B2p2/PP1K1PP1/7P/8
w
-
-
Bxd5 fxg3 hxg3 Kxd5 g4
8/8/4Kpp1/7p/3N2kP/8/8/8
b
-
-
g5 hxg5 fxg5 Kd5 h4 Ke4 h3 Nf3 Kg3
1r6/pp2kppQ/2n1p1n1/3p2P1/5P2/2PqP3/PP1N4/2KR3R
b
-
-
Nb4 cxb4 Rc8+ Nc4 Rxc4#

Dataset Card for Chess Puzzles Images (mini)

This dataset contains 124,999 chess board positions in JPG format, derived from Lichess puzzles. Each image is accompanied by a shortened FEN string, indication for the color to play as, castling and en passant availability, and best moves in standard algebraic notation. The fields are as follows:

  • image: image, A visual representation of the chess board showing the current piece arrangement.
  • board_state: string, A shortened FEN (Forsyth–Edwards Notation) string representing the piece placement on the board after the opponent's move. This state indicates the position from which the player must find the correct continuation.
  • active_color: string, Indicates which player's turn it is to move. "w" for White to move and "b" for Black to move.
  • castling_rights: string, Indicates the remaining castling options for both players. If neither side has the ability to castle, this field uses the character "-". Otherwise, this field contains one or more letters: "K" if White can castle kingside, "Q" if White can castle queenside, "k" if Black can castle kingside, and "q" if Black can castle queenside.
  • en_passant_target_square: string, Specifies the square in algebraic notation where an en passant capture is possible. If no en passant capture is available, this field contains "-".
  • best_continuation: string, The solution to the puzzle, consisting of "only moves" - moves that are significantly better than any alternatives. For mate-in-one puzzles, multiple solutions may exist if they all result in checkmate.
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