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imagewidth (px)
384
384
board_state
stringlengths
19
63
active_color
stringclasses
2 values
castling_rights
stringclasses
16 values
en_passant_target_square
stringclasses
17 values
best_continuation
stringlengths
2
102
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#
End of preview. Expand in Data Studio

Dataset Card for Chess Puzzles Images (large)

This dataset contains 1,249,999 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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