PuzzleId
stringlengths
5
5
FEN
stringlengths
30
77
Moves
stringlengths
9
151
Rating
int64
399
3.33k
RatingDeviation
int64
50
500
Popularity
int64
-100
113
NbPlays
int64
0
5.37M
Themes
stringlengths
7
131
GameUrl
stringlengths
30
38
OpeningTags
stringlengths
24
96
00008
r6k/pp2r2p/4Rp1Q/3p4/8/1N1P2R1/PqP2bPP/7K b - - 0 24
f2g3 e6e7 b2b1 b3c1 b1c1 h6c1
1,943
76
94
6,586
crushing hangingPiece long middlegame
https://lichess.org/787zsVup/black#48
null
0000D
5rk1/1p3ppp/pq3b2/8/8/1P1Q1N2/P4PPP/3R2K1 w - - 2 27
d3d6 f8d8 d6d8 f6d8
1,453
74
96
28,478
advantage endgame short
https://lichess.org/F8M8OS71#53
null
0008Q
8/4R3/1p2P3/p4r2/P6p/1P3Pk1/4K3/8 w - - 1 64
e7f7 f5e5 e2f1 e5e6
1,337
75
90
603
advantage endgame rookEndgame short
https://lichess.org/MQSyb3KW#127
null
0009B
r2qr1k1/b1p2ppp/pp4n1/P1P1p3/4P1n1/B2P2Pb/3NBP1P/RN1QR1K1 b - - 1 16
b6c5 e2g4 h3g4 d1g4
1,112
74
87
570
advantage middlegame short
https://lichess.org/4MWQCxQ6/black#32
Kings_Pawn_Game Kings_Pawn_Game_Leonardis_Variation
000VW
r4r2/1p3pkp/p5p1/3R1N1Q/3P4/8/P1q2P2/3R2K1 b - - 3 25
g6f5 d5c5 c2e4 h5g5 g7h8 g5f6
2,676
94
92
58
crushing endgame long
https://lichess.org/e9AY2m5j/black#50
null
000Vc
8/8/4k1p1/2KpP2p/5PP1/8/8/8 w - - 0 53
g4h5 g6h5 f4f5 e6e5 f5f6 e5f6
1,556
81
73
94
crushing endgame long pawnEndgame
https://lichess.org/l6AejDMO#105
null
000Zo
4r3/1k6/pp3r2/1b2P2p/3R1p2/P1R2P2/1P4PP/6K1 w - - 0 35
e5f6 e8e1 g1f2 e1f1
1,353
75
86
622
endgame mate mateIn2 short
https://lichess.org/n8Ff742v#69
null
000aY
r4rk1/pp3ppp/2n1b3/q1pp2B1/8/P1Q2NP1/1PP1PP1P/2KR3R w - - 0 15
g5e7 a5c3 b2c3 c6e7
1,428
79
73
505
advantage master middlegame short
https://lichess.org/iihZGl6t#29
Benoni_Defense Benoni_Defense_Benoni-Indian_Defense
000hf
r1bqk2r/pp1nbNp1/2p1p2p/8/2BP4/1PN3P1/P3QP1P/3R1RK1 b kq - 0 19
e8f7 e2e6 f7f8 e6f7
1,508
74
90
506
mate mateIn2 middlegame short
https://lichess.org/71ygsFeE/black#38
Horwitz_Defense Horwitz_Defense_Other_variations
000lC
3r3r/pQNk1ppp/1qnb1n2/1B6/8/8/PPP3PP/3R1R1K w - - 5 19
d1d6 d7d6 b7b6 a7b6
1,441
75
97
2,146
advantage hangingPiece middlegame short
https://lichess.org/vaqz2bx6#37
null
000mr
5r1k/5rp1/p7/1b2B2p/1P1P1Pq1/2R1Q3/P3p1P1/2R3K1 w - - 0 41
e3g3 f7f4 e5f4 f8f4
1,941
85
62
96
crushing middlegame short
https://lichess.org/8sVpuwso#81
null
000qP
8/7R/8/5p2/4bk1P/8/2r2K2/6R1 w - - 7 51
f2f1 f4f3 f1e1 c2c1 e1d2 c1g1
2,151
78
91
755
crushing endgame exposedKing long skewer
https://lichess.org/r4xUR6fC#101
null
000rO
3R4/8/K7/pB2b3/1p6/1P2k3/3p4/8 w - - 4 58
a6a5 e5c7 a5b4 c7d8
1,075
81
85
65
crushing endgame fork short
https://lichess.org/tzeeBEc2#115
null
000tp
4r3/5pk1/1p3np1/3p3p/2qQ4/P4N1P/1P3RP1/7K w - - 6 34
d4b6 f6e4 h1g1 e4f2
2,051
75
81
114
crushing endgame short trappedPiece
https://lichess.org/GeXqsW90#67
null
00143
r2q1rk1/5ppp/1np5/p1b5/2p1B3/P7/1P3PPP/R1BQ1RK1 b - - 1 17
d8f6 d1h5 h7h6 h5c5
1,785
74
91
2,616
advantage middlegame short
https://lichess.org/jcuxlI63/black#34
Scotch_Game Scotch_Game_Mieses_Variation
0018S
2kr3r/pp3p2/4p2p/1N1p2p1/3Q4/1P1P4/2q2PPP/5RK1 b - - 1 20
b7b6 d4a1 a7a5 f1c1
2,687
118
90
1,680
advantage endgame pin short
https://lichess.org/H1ARO2GL/black#40
null
001Hi
6k1/pp1r1pp1/1qp1p2p/4P2P/5Q2/1P4R1/P1Pr1PP1/R5K1 b - - 4 23
b6d4 f4f6 d4f2 f6f2 d2f2 g1f2
2,389
115
58
14
advantage endgame long pin
https://lichess.org/tUkE0z1z/black#46
null
001Wz
4r1k1/5ppp/r1p5/p1n1RP2/8/2P2N1P/2P3P1/3R2K1 b - - 0 21
e8e5 d1d8 e5e8 d8e8
1,125
82
87
70
backRankMate endgame mate mateIn2 short
https://lichess.org/84RH3LaP/black#42
null
001XA
1qr2rk1/pb2bppp/8/8/2p1N3/P1Bn2P1/2Q2PBP/1R3RK1 b - - 3 23
b8c7 b1b7 c7b7 e4f6 e7f6 g2b7
1,581
74
91
1,112
crushing discoveredAttack long master middlegame sacrifice
https://lichess.org/KZRiN695/black#46
null
001cr
8/3B2pp/p5k1/2p3P1/1p1p1K2/8/1P6/8 b - - 0 38
c5c4 d7e8
1,756
76
96
387
bishopEndgame endgame mate mateIn1 oneMove
https://lichess.org/7FFNwibw/black#76
null
001gi
r6r/1pNk1ppp/2np4/b3p3/4P1b1/N1Q5/P4PPP/R3KB1R w KQ - 3 18
c7a8 a5c3
835
121
62
230
bodenMate hangingPiece mate mateIn1 middlegame oneMove
https://lichess.org/1sV2Hr22#35
Sicilian_Defense Sicilian_Defense_Other_variations
001h8
2r3k1/2r4p/4p1p1/1p1q1pP1/p1bP1P1Q/P6R/5B2/2R3K1 b - - 5 34
c4e2 h4h7 c7h7 c1c8 g8g7 c8c7
1,827
75
93
461
crushing deflection kingsideAttack long middlegame sacrifice
https://lichess.org/IxCahP6X/black#68
null
001m3
7r/6k1/2b1pp2/8/P1N3p1/5nP1/4RP2/Q4K2 w - - 2 38
e2e6 h8h1 f1e2 h1a1
1,497
75
87
265
advantage endgame short skewer
https://lichess.org/LELOz22f#75
null
001om
5r1k/pp4pp/5p2/1BbQp1r1/6K1/7P/1PP3P1/3R3R w - - 2 26
g4h4 c5f2 g2g3 f2g3
1,018
80
89
220
mate mateIn2 middlegame short
https://lichess.org/VWOIWtIh#51
null
001u3
2r3k1/p1q2pp1/Q3p2p/b1Np4/2nP1P2/4P1P1/5K1P/2B1N3 b - - 3 33
c7b6 a6c8 g8h7 c8b7
2,175
81
55
77
advantage hangingPiece middlegame short
https://lichess.org/BBn6ipaK/black#66
null
001uD
6k1/1p3pp1/1p5p/2r1p3/2n5/r3PN2/2RnNPPP/2R3K1 b - - 1 32
f7f6 f3d2 c4d2 c2d2 c5c1 e2c1
1,913
75
92
749
advantage long middlegame
https://lichess.org/2qkVLUl6/black#64
null
001w5
1rb2rk1/q5P1/4p2p/3p3p/3P1P2/2P5/2QK3P/3R2R1 b - - 0 29
f8f7 c2h7 g8h7 g7g8q
1,093
81
92
199
advancedPawn attraction mate mateIn2 middlegame promotion short
https://lichess.org/0e1vxAEn/black#58
null
001wR
6nr/pp3p1p/k1p5/8/1QN5/2P1P3/4KPqP/8 b - - 5 26
b7b5 b4a5 a6b7 c4d6 b7b8 a5d8
1,325
77
98
1,325
endgame long mate mateIn3
https://lichess.org/ruvbd9JW/black#52
null
001wb
r3k2r/pb1p1ppp/1b4q1/1Q2P3/8/2NP1Pn1/PP4PP/R1B2R1K w kq - 1 17
h2g3 g6h5
1,502
137
77
65
mate mateIn1 middlegame oneMove
https://lichess.org/hNzYRMWP#33
Ruy_Lopez Ruy_Lopez_Bird_Variation
001wr
r4rk1/p3ppbp/Pp1q1np1/3PpbB1/2B5/2N5/1PPQ1PPP/3RR1K1 w - - 4 18
f2f3 d6c5 g1h1 c5c4
955
76
96
2,077
advantage fork master masterVsMaster middlegame short
https://lichess.org/KnJ2mojX#35
Pirc_Defense Pirc_Defense_Classical_Variation
001xO
k1r1b3/p1r1nppp/1p1qpn2/2Np4/1P1P4/PQRBPN2/5PPP/2R3K1 w - - 0 19
d3a6 b6c5 a6c8 c5c4
1,885
75
91
1,142
crushing master masterVsMaster middlegame sacrifice short
https://lichess.org/fNCePFgY#37
Slav_Defense Slav_Defense_Other_variations
001xl
8/4R1k1/p5pp/3B4/5q2/8/5P1P/6K1 b - - 5 40
g7f6 e7f7 f6e5 f7f4
1,170
76
94
11,084
advantage endgame master masterVsMaster short skewer superGM
https://lichess.org/bEQkfPQD/black#80
null
00206
r3kb1r/pppqpn1p/5p2/3p1bpQ/2PP4/4P1B1/PP3PPP/RN2KB1R w KQkq - 1 11
b1c3 f5g4 h5g4 d7g4
1,604
74
96
27,391
advantage opening short trappedPiece
https://lichess.org/MbJRo6PT#21
Queens_Pawn_Game Queens_Pawn_Game_Accelerated_London_System
002CP
r5k1/pp4pp/4p1q1/4p3/3n4/P5P1/1PP2Q1P/2KR1R2 w - - 4 24
f2e3 g6c2
927
81
69
83
endgame mate mateIn1 oneMove queensideAttack
https://lichess.org/pHZnIFdb#47
null
002Cw
r7/2p2r1k/p2p1q1p/Pp1P4/1P2P3/2PQ4/6R1/R5K1 b - - 2 28
f7g7 e4e5 f6g6 g2g6
1,027
81
94
2,123
crushing discoveredAttack endgame short
https://lichess.org/lxiSa85s/black#56
null
002E4
8/8/kpq5/p4pQp/P7/7P/3r2P1/4R2K b - - 10 48
c6a4 g5d2
974
92
33
44
crushing endgame hangingPiece oneMove
https://lichess.org/JwMca3Nw/black#96
null
002GQ
5rk1/5ppp/4p3/4N3/8/1Pn5/5PPP/5RK1 w - - 0 28
f1c1 c3e2 g1f1 e2c1
850
113
100
28
crushing endgame fork short
https://lichess.org/2K7g2pDT#55
null
002IE
r3brk1/5pp1/p1nqpn1p/P2pN3/2pP4/2P1PN2/5PPP/RB1QK2R b KQ - 4 16
c6e5 d4e5 d6e7 e5f6
1,212
89
60
27
advantage fork middlegame short
https://lichess.org/fDwvVUIp/black#32
Queens_Pawn_Game Queens_Pawn_Game_Accelerated_London_System
002KJ
r3kb1r/ppq2ppp/4pn2/2Ppn3/1P4bP/2P2N2/P3BPP1/RNBQ1RK1 b kq - 2 10
f8e7 f3e5 c7e5 e2g4
1,585
74
94
1,303
crushing discoveredAttack middlegame short
https://lichess.org/2NpTzh7O/black#20
Caro-Kann_Defense Caro-Kann_Defense_Advance_Variation
002LF
7r/p2q1pk1/1pp3p1/8/6P1/4Q3/PP1R1P1r/5KN1 b - - 0 38
d7g4 e3e5 f7f6 e5c7 g7h6 c7h2
2,239
79
89
366
advantage endgame interference long
https://lichess.org/md88dHiL/black#76
null
002LW
3r1rk1/1b1n1pp1/3p4/p4PPQ/4P3/3q1BN1/8/2R2RK1 b - - 1 28
d7e5 f5f6 e5f3 f1f3
2,464
88
78
112
advantage middlegame short
https://lichess.org/0khwj5dv/black#56
null
002O7
r3qrk1/2p2pp1/p2bpn1p/2ppNb2/3P1P2/1PP1P1B1/P2N2PP/R2Q1RK1 b - - 0 14
f5g4 e5g4 f6g4 d1g4
969
92
91
345
crushing middlegame short
https://lichess.org/dFEPPiEc/black#28
Queens_Pawn_Game Queens_Pawn_Game_Accelerated_London_System
002Tf
r3kbnr/ppp1qppp/2n5/3pP3/5B2/4PQ2/PPP2PPP/RN2KB1R w KQkq - 1 7
f1b5 e7b4 b1c3 b4b2
1,575
75
83
164
advantage fork opening short
https://lichess.org/Zq56PwHK#13
Queens_Pawn_Game Queens_Pawn_Game_Chigorin_Variation
002Ua
r4rk1/pp3ppp/3p1q2/P1P1p3/2B5/2B2n2/2P2P1P/R2Q1RK1 w - - 0 16
g1h1 f6f4 d1f3 f4f3
1,797
74
95
6,802
crushing kingsideAttack middlegame short
https://lichess.org/06i3eMVp#31
Sicilian_Defense Sicilian_Defense_Lowenthal_Variation
002Uy
8/8/1p6/k7/P1R5/1K5r/8/8 w - - 26 64
c4c3 h3c3 b3c3 a5a4 c3b2 a4b4
1,718
75
97
1,647
crushing defensiveMove endgame long rookEndgame
https://lichess.org/sLU7YN1A#127
null
002VP
8/6p1/2B1bn2/6k1/3B4/6K1/4P3/8 b - - 4 44
e6d5 d4f6 g5f5 c6d5
1,432
80
69
129
crushing endgame short
https://lichess.org/7yJGEbUK/black#88
null
002Z9
4r1k1/1p2R1p1/p2p2Pp/P1pP4/5q2/1R3p2/1P1Q3P/5B1K b - - 0 34
f4d2 e7e8
1,237
99
69
48
endgame hangingPiece mate mateIn1 oneMove
https://lichess.org/Ek4aENjD/black#68
null
002bK
8/7p/2b1k3/p2p1pPB/1n1P3P/N1p1P3/4K3/8 b - - 1 42
c6b5 a3b5 c3c2 e2d2
1,139
76
92
764
advantage endgame hangingPiece short
https://lichess.org/IFGj8W5s/black#84
null
002rd
r6k/q1pb1p1p/1b3Pr1/p1ppP2Q/3P2p1/4B3/PP2NRPP/3R2K1 b - - 1 25
d7e6 e2f4 c5d4 f4g6 f7g6 h5h6
1,812
74
78
118
crushing kingsideAttack long middlegame pin
https://lichess.org/NcD6lul8/black#50
null
002uV
r2r2k1/1p2qppp/2n1p3/5n2/p2P4/P2Q1N2/BP3PPP/2R1R1K1 w - - 4 20
d3f5 e6f5 e1e7 c6e7
1,615
76
85
65
advantage middlegame short
https://lichess.org/WKH5eIti#39
null
002vV
8/6k1/2R4p/5p1P/5P1K/6P1/8/r7 w - - 2 58
c6b6 a1h1
433
88
100
154
endgame mate mateIn1 oneMove rookEndgame
https://lichess.org/KB7FAntf#115
null
002xh
2nk4/8/2PBp1n1/1pK1P1p1/1P4P1/8/8/8 b - - 2 42
g6h4 c5b5 h4g2 b5a6 g2e3 a6b7
2,074
101
54
28
crushing endgame long
https://lichess.org/TfRvsd3p/black#84
null
0039T
1r5r/p3kp2/4p2p/4P3/3R1Pp1/6P1/P1P4P/4K2R w K - 1 25
d4a4 b8b1 e1f2 b1h1 a4a7 e7f8
875
86
93
752
crushing defensiveMove endgame long rookEndgame skewer
https://lichess.org/BrtVeJlj#49
null
003AX
2r2rk1/5ppp/bq2p3/p1ppP1N1/Pb1P2P1/1P2P2P/2QN4/2R1K2R b K - 1 18
c5d4 c2h7
1,076
75
100
235
kingsideAttack mate mateIn1 middlegame oneMove
https://lichess.org/kRgejRSt/black#36
French_Defense French_Defense_Advance_Variation
003IX
8/3pk3/R7/1R2Pp1p/2PPnKr1/8/8/8 w - - 4 43
f4f5 e4g3
1,685
79
89
1,237
endgame mate mateIn1 oneMove
https://lichess.org/576Btq56#85
null
003Jb
6k1/3bqr1p/2rpp1pR/p7/Pp1QP3/1B3P2/1PP3P1/2KR4 w - - 6 22
d4a7 e7g5 c1b1 g5h6
996
79
90
387
advantage fork middlegame short
https://lichess.org/8RvK0idj#43
null
003S3
r4k1r/pNqnppb1/6pn/2p3Np/7P/2P2Q2/PP3PP1/R1B1K2R b KQ - 2 15
a8b8 g5e6 f8g8 e6c7
1,425
75
97
7,178
advantage middlegame pin short
https://lichess.org/Eu6S0GPA/black#30
Modern_Defense Modern_Defense_Other_variations
003Tx
2r5/pR5p/5p1k/4p3/4r3/B4nPP/PP3P2/1K2R3 w - - 0 27
e1e4 f3d2 b1a1 c8c1
1,545
88
83
693
backRankMate endgame fork mate mateIn2 short
https://lichess.org/A7j9VEC0#53
null
003UW
8/6pk/7p/2p5/2qp4/5PP1/P3QK1P/8 b - - 1 40
c4d5 e2e4 d5e4 f3e4
1,487
74
92
663
advantage endgame queenEndgame short
https://lichess.org/cXMga3rb/black#80
null
003YT
r1bqk1nr/1pp2ppp/p1pb4/4p3/3PP3/5N2/PPP2PPP/RNBQ1RK1 b kq - 0 6
d8f6 d4e5 d6e5 c1g5 f6d6 f3e5 d6d1 f1d1
1,729
167
-60
15
advantage fork opening veryLong
https://lichess.org/TAffogpQ/black#12
Ruy_Lopez Ruy_Lopez_Exchange_Variation
003eP
8/r1b1q2k/2p3p1/2Pp4/1P2p1n1/2B1P3/NQ6/2K4R b - - 1 36
h7g8 h1h8 g8f7 h8h7 f7e8 h7e7
1,157
79
88
1,751
crushing exposedKing long middlegame skewer
https://lichess.org/n9vCFmKh/black#72
null
003jH
rn3rk1/p5pp/3N4/4np1q/5Q2/1P3K2/PB1P2P1/2R4R w - - 0 25
f3f2 e5d3 f2e3 d3f4 h1h5 f4h5
1,143
81
89
306
crushing fork long middlegame
https://lichess.org/3CQGofXT#49
null
003jb
r3kb1r/p4ppp/b1p1p3/3q4/3Q4/4BN2/PPP2PPP/R3K2R b KQkq - 0 11
c6c5 d4a4 a6b5 a4b5
937
77
95
2,527
crushing fork middlegame short
https://lichess.org/960EzUS0/black#22
French_Defense French_Defense_Classical_Variation
003jv
1R6/1p2k2p/p2n2p1/4K3/8/6P1/P6P/8 w - - 10 37
b8h8 d6f7 e5e4 f7h8
1,008
81
89
334
crushing endgame fork short
https://lichess.org/n0UvwK36#73
null
003md
r1b1k2N/ppp3pp/2n5/2bp4/7q/1B4n1/PPPP1P1P/RNBQ1RK1 w q - 0 10
f1e1 g3e4 e1e4 d5e4 d1h5 h4h5 b3f7 h5f7
2,124
79
84
205
crushing defensiveMove middlegame veryLong
https://lichess.org/ALtR2fxT#19
Russian_Game Russian_Game_Italian_Variation
003nQ
6rk/pp6/2n5/3ppn1p/3p4/2P2P1q/PP3QNB/R4R1K w - - 2 29
f1g1 f5g3 f2g3 g8g3
1,268
88
67
28
crushing kingsideAttack master middlegame pin short
https://lichess.org/p85fiZcl#57
null
003o0
r1bqk2r/pp1nbppp/3p4/1B1p4/3P1B2/8/PPP2PPP/R2QK1NR w KQkq - 2 9
g1f3 d8a5 d1d2 a5b5
1,020
84
90
662
advantage fork master opening short
https://lichess.org/Ae0t9V1Z#17
Czech_Defense Czech_Defense_Other_variations
003r5
r2qr1k1/ppp2ppp/4b3/3P4/1nP2Q2/2N2N1P/PP3KP1/R4R2 w - - 1 15
d5e6 b4d3 f2g1 d3f4
1,107
77
87
856
crushing fork middlegame short
https://lichess.org/JPN97v7j#29
Kings_Gambit_Accepted Kings_Gambit_Accepted_Abbazia_Defense
003wQ
2r2rk1/6pp/3Q1q2/8/3N1B2/6P1/PP1K3P/R4b2 w - - 0 24
a1f1 f6d6 f4d6 f8f1
1,934
77
91
1,799
advantage discoveredAttack middlegame pin short
https://lichess.org/W3wvnzlo#47
null
0042j
3r2k1/4nppp/pq1p1b2/1p2P3/2r2P2/2P1NR2/PP1Q2BP/3R2K1 b - - 0 24
d6e5 d2d8 b6d8 d1d8
436
114
94
1,211
backRankMate mate mateIn2 middlegame short
https://lichess.org/DuM2FZjg/black#48
null
0045Q
rnbqkb1r/pppp2pp/8/4P3/2B5/4p3/PPPP2PP/R1BQK1NR w KQkq - 0 7
d1f3 d8h4 e1d1 h4c4
1,456
79
97
25,448
advantage fork opening short
https://lichess.org/fTegzZIT#13
Vienna_Game Vienna_Game_Other_variations
0047P
8/1N3k2/6p1/8/2P3P1/pr6/R5K1/8 w - - 1 56
g2f1 b3b1 f1e2 b1b2 e2d1 b2a2
1,769
75
86
86
crushing endgame exposedKing fork long
https://lichess.org/Gb33KZKC#111
null
0048h
4r3/p5k1/2p2R1p/2Pp4/1P1pr1P1/P6P/8/3R3K w - - 1 35
f6c6 e4e1 d1e1 e8e1 h1g2 d4d3
1,215
76
99
776
crushing endgame exposedKing long rookEndgame
https://lichess.org/dq15P00L#69
null
004Ao
4qk2/1b3rR1/p7/1p2Q3/4P2P/P2P3K/2r5/3R4 w - - 5 41
g7f7 e8f7 e5h8 f8e7
1,735
99
86
19
advantage endgame short
https://lichess.org/aFlzjb1K#81
null
004Ax
8/8/4R1kp/p7/5rPK/8/7P/8 b - - 2 42
g6f7 e6h6 f4f6 h6h7 f7g6 h7a7
1,935
76
92
440
crushing endgame exposedKing long rookEndgame
https://lichess.org/x2mMwVJD/black#84
null
004BW
r1bk2r1/ppq2pQp/3bpn2/1BpnN3/5P2/1P6/PBPP2PP/RN2K2R w KQ - 3 13
e5f7 d8e7 g7g8 f6g8
1,810
76
90
1,447
advantage middlegame short
https://lichess.org/EXlG6TZs#25
Sicilian_Defense Sicilian_Defense_Modern_Variations
004JD
3r4/R7/2p5/p1P2p2/1p4k1/nP6/P2KNP2/8 w - - 3 41
d2e3 a3c2
1,344
75
91
2,622
endgame mate mateIn1 oneMove
https://lichess.org/6vTeEc3x#81
null
004LZ
8/7R/5p2/p7/7P/2p5/3k2r1/1K2N3 w - - 3 48
e1g2 c3c2 b1a2 c2c1q h7d7 d2e2
1,073
78
93
1,964
advancedPawn crushing defensiveMove deflection endgame long promotion
https://lichess.org/drahwNdj#95
null
004Op
2kr2r1/1bp4n/1pq1p2p/p1P5/1P3B2/P6P/5RP1/RB2Q1K1 w - - 3 26
e1f1 d8d1 f1d1 g8g2 g1f1 g2g1 f1e2 g1d1
2,140
82
92
1,360
crushing deflection kingsideAttack middlegame pin sacrifice skewer veryLong
https://lichess.org/tneg9Bzk#51
null
004RF
5rk1/5ppp/1p6/1qp2P1Q/3p3P/6R1/6PK/8 b - - 0 30
c5c4 g3g7 g8g7 f5f6 g7f6 h5b5
1,764
79
81
48
attraction crushing discoveredAttack endgame long sacrifice
https://lichess.org/2UeWcE4h/black#60
null
004WZ
r6k/1b3pp1/p1q1pn1p/2p5/P1B5/1PN4Q/2P1RP1P/R4Kr1 w - - 2 26
f1g1 c6h1
1,491
487
100
1
mate mateIn1 middlegame oneMove
https://lichess.org/BQIdXPOM#51
null
004X6
1r4k1/p4ppp/2Q5/3pq3/8/P6P/2PR1PP1/Rr4K1 w - - 1 26
a1b1 b8b1 d2d1 b1d1
1,176
278
83
11
endgame mate mateIn2 short
https://lichess.org/wvPFkjF9#51
null
004Ys
r4rk1/3q1pbp/p1n1p1p1/2p3NP/1p3B2/3P3Q/PPP3P1/R3R1K1 b - - 2 19
d7d4 f4e3 d4f6 e1f1 f6e5 h5g6 e5e3 h3e3
2,209
78
89
299
advantage defensiveMove middlegame veryLong
https://lichess.org/LcIJdugn/black#38
Sicilian_Defense Sicilian_Defense_McDonnell_Attack
004d8
8/4kr2/R2p4/1p1Pp1p1/5p2/3K1P2/PPP5/8 b - - 0 39
g5g4 a6a7 e7f6 a7f7 f6f7 f3g4
1,639
78
87
98
crushing endgame long rookEndgame
https://lichess.org/FrR3BHbW/black#78
null
004iZ
r2r2k1/2q1bpp1/3p1n1p/1ppN4/1P1BP3/P5Q1/4RPPP/R5K1 b - - 1 20
f6d5 g3g7
558
89
89
884
kingsideAttack mate mateIn1 middlegame oneMove
https://lichess.org/dQ85JUe1/black#40
null
004kB
4rr1k/pQpn2pp/3p1q2/8/8/2P5/PP3PPP/RN3RK1 w - - 1 16
b7c7 f6f2 f1f2 e8e1 f2f1 e1f1
1,213
76
60
189
kingsideAttack long mate mateIn3 middlegame sacrifice
https://lichess.org/Cl9T6bjt#31
Ruy_Lopez Ruy_Lopez_Steinitz_Defense
004mT
5Q2/8/1b1kp1p1/5p2/3p4/5qPK/7P/8 b - - 1 51
d6c6 f8a8 c6d6 a8f3
1,240
75
100
3,284
advantage endgame short skewer
https://lichess.org/Jqhi4ozb/black#102
null
004nd
3q2k1/2r5/pp3p1Q/2b1n3/P3N3/2P5/1P4PP/R6K b - - 0 24
c7d7 e4f6 d8f6 h6f6
898
75
83
204
crushing fork middlegame short
https://lichess.org/IajkZZBp/black#48
null
004sY
8/2k3n1/3p2p1/1KpP2Pp/2P4P/7B/8/8 w - - 0 57
b5a6 c7d8 a6b5 g7f5
2,191
95
68
30
crushing endgame short
https://lichess.org/sMrTPfXp#113
null
004sg
6k1/p3b2p/1p1pP3/2p3P1/1Pnp3B/P6P/3Q3K/8 w - - 0 38
b4c5 c4d2 c5c6 d6d5 g5g6 e7d6
2,371
88
90
1,098
advantage clearance endgame hangingPiece long quietMove
https://lichess.org/pSRIvt7K#75
null
004u0
6k1/ppq3pp/2p1rp2/4r3/4p1Q1/P5RP/1P3PP1/3R2K1 b - - 3 34
e6e8 d1d7 c7d7 g4d7
1,319
75
92
898
advantage endgame short
https://lichess.org/3gEqoQeQ/black#68
null
004zI
2q3k1/4br1p/6RQ/1p1n2p1/7P/1P4P1/1B2PP2/6K1 b - - 0 27
h7g6 h6h8
1,443
75
79
313
endgame mate mateIn1 oneMove
https://lichess.org/HE33gdt4/black#54
null
0050w
5rk1/1p2p1rp/p2p4/2pPb2R/2P1P3/1P1BKP1R/8/8 b - - 4 30
g7g3 h3g3 e5g3 h5g5 g8f7 g5g3
1,071
80
94
1,450
crushing endgame fork long
https://lichess.org/QD8pUcTR/black#60
null
0055Y
r1b2rk1/p3pp2/2B4b/2Qpq3/3N2pp/4P3/2P2PPP/1R2K2R b K - 1 23
h6e3 f2e3 e5e3 e1d1
2,055
76
79
144
advantage defensiveMove middlegame short
https://lichess.org/7Jpwzowt/black#46
null
005HF
3r1rk1/1pR3pp/p2bp3/1q2Np2/3P4/1P5Q/5PPP/4R1K1 w - - 2 27
c7g7 g8g7 h3g3 g7h8
1,380
78
72
52
crushing defensiveMove hangingPiece middlegame short
https://lichess.org/IqVPsfjB#53
null
005N7
r6k/2q3pp/8/2p1n3/R1Qp4/7P/2PB1PP1/6K1 b - - 0 32
e5c4 a4a8 c7b8 a8b8
470
97
93
1,633
backRankMate endgame hangingPiece mate mateIn2 short
https://lichess.org/jxZhmGhg/black#64
null
005YM
5k2/p4pp1/1qn3r1/3pP2p/5P2/1NPQ4/Pr3RPP/R5K1 w - - 5 24
b3d4 b2f2 g1f2 c6d4 d3d4 b6b2
2,447
83
88
178
advantage long middlegame
https://lichess.org/fDmK2ipV#47
null
005YX
2rr4/2N2pk1/p1Q1b1pp/1p4q1/3pP3/1B1P4/PPP3PP/6RK w - - 7 25
c7e6 f7e6 c6b7 g7h8
1,440
309
100
13
defensiveMove equality middlegame short
https://lichess.org/zbi5w5Qy#49
null
005f3
r5k1/2p1pp2/pp4p1/1q1r4/5P2/2QP2R1/PP6/1K4R1 b - - 0 32
d5h5 g3g6 f7g6 g1g6 g8f7 c3g7 f7e8 g7g8 e8d7 g8e6 d7d8 g6g8
2,014
77
95
12,757
crushing endgame sacrifice veryLong
https://lichess.org/Prb24UzR/black#64
null
005jJ
r1b1qrk1/pp1n1pbp/2pp1np1/4p3/2PP1B2/2NBPN1P/PP3PP1/R2Q1RK1 w - - 0 10
d4e5 d6e5 f4h2 e5e4
1,242
83
70
29
advantage opening short
https://lichess.org/wt6Q2xGb#19
Queens_Pawn_Game Queens_Pawn_Game_Other_variations

Dataset Card for Lichess Puzzles

Dataset Description

4,200,322 chess puzzles, rated and tagged. See them in action on Lichess.

This dataset is updated monthly, and was last updated on October 6th, 2024.

Dataset Creation

Generating these chess puzzles took more than 50 years of CPU time. We went through 300,000,000 analyzed games from the Lichess database, and re-analyzed interesting positions with Stockfish 12/13/14/15 NNUE at 40 meganodes. The resulting puzzles were then automatically tagged. To determine the rating, each attempt to solve is considered as a Glicko-2 rated game between the player and the puzzle. Finally, player votes refine the tags and define popularity.

Dataset Usage

Using the datasets library:

from datasets import load_dataset
dset = load_dataset("Lichess/chess-puzzles", split="train")

Dataset Details

Dataset Sample

One row of the dataset looks like this:

{
 'PuzzleId': '0009B',
 'FEN': 'r2qr1k1/b1p2ppp/pp4n1/P1P1p3/4P1n1/B2P2Pb/3NBP1P/RN1QR1K1 b - - 1 16',
 'Moves': 'b6c5 e2g4 h3g4 d1g4',
 'Rating': 1112,
 'RatingDeviation': 74,
 'Popularity': 87,
 'NbPlays': 569,
 'Themes': 'advantage middlegame short',
 'GameUrl': 'https://lichess.org/4MWQCxQ6/black#31',
 'OpeningTags': 'Kings_Pawn_Game Kings_Pawn_Game_Leonardis_Variation'
}

Dataset Fields

Every row of the dataset contains the following fields:

  • PuzzleId: string, the puzzle's unique identifier. The puzzle would be live at https://lichess.org/training/{PuzzleID}.
  • FEN: string, the FEN string of the position before the opponent makes their move.
  • Moves: string, the solution to the puzzle. All player moves of the solution are "only moves", i.e. playing any other move would considerably worsen the player position. An exception is made for mates in one: there can be several. Any move that checkmates should win the puzzle.
  • Rating: int, the Glicko-2 rating of the puzzle.
  • RatingDeviation: int, the Glicko-2 rating deviation of the puzzle.
  • Popularity: int, a number between 100 (best) and -100 (worst), calculated as 100 * (upvotes - downvotes)/(upvotes + downvotes). Votes are weighted by various factors such as whether the puzzle was solved successfully or the solver's puzzle rating in comparison to the puzzle's.
  • NbPlays: int, the number of times a puzzle was played.
  • Themes: string, a space separated list of puzzle themes.
  • GameUrl: string, the link to the specific game and move the puzzle was extracted from.
  • OpeningTags: string, a space separated list of openings. This is only set for puzzles starting before move 20.

Additional Information

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