fen
stringlengths
29
57
total_white_pieces
int64
1
15
total_black_pieces
int64
1
15
total_pieces
int64
4
17
white_pawns
int64
0
8
white_knights
int64
0
2
white_bishops
int64
0
2
white_rooks
int64
0
2
white_queens
int64
0
1
white_kings
int64
1
1
black_pawns
int64
0
8
black_knights
int64
0
2
black_bishops
int64
0
2
black_rooks
int64
0
2
black_queens
int64
0
1
black_kings
int64
1
1
white_material
int64
0
3.8k
black_material
int64
0
3.9k
material_imbalance
int64
-3,800
3.7k
8/1p6/k4P2/p1B3P1/8/5nP1/4p3/2R1K3 w - - 0 1
6
5
11
3
0
1
1
0
1
3
1
0
0
0
1
1,150
600
550
1K6/6P1/1k6/7N/6nP/5P1P/1P6/8 w - - 0 1
7
2
9
5
1
0
0
0
1
0
1
0
0
0
1
800
300
500
8/2p1r3/pq1N4/1BN1k3/5r2/3pp2p/6p1/1b3K2 w - - 0 1
4
11
15
0
2
1
0
0
1
6
0
1
2
1
1
950
2,850
-1,900
1k6/2q2rP1/n3B1P1/1p3R2/3B4/8/p1PK1p2/8 w - - 0 1
7
7
14
3
0
2
1
0
1
3
1
0
1
1
1
1,500
2,000
-500
8/7k/r4p2/2p1PN1p/2P5/1n1bR1Pb/1Q4Kp/8 w - - 0 1
7
9
16
3
1
0
1
1
1
4
1
2
1
0
1
2,000
1,900
100
1Rb5/3N1KP1/8/P2q1P2/8/1N3kPb/7P/8 w - - 0 1
9
4
13
5
2
0
1
0
1
0
0
2
0
1
1
1,600
1,600
0
8/5P2/7p/2p1q3/7K/N1p2P1p/1R1b4/k4n2 w - - 0 1
5
8
13
2
1
0
1
0
1
4
1
1
0
1
1
1,000
1,950
-950
B1N5/7P/p7/2P5/3K4/1n4b1/4p3/4R1k1 w - - 0 1
6
5
11
2
1
1
1
0
1
2
1
1
0
0
1
1,350
850
500
B7/p7/1r4PP/5Bp1/4k2n/4R3/7K/1N6 w - - 0 1
7
5
12
2
1
2
1
0
1
2
1
0
1
0
1
1,700
1,000
700
7K/8/7P/8/8/5k2/8/1r6 w - - 0 1
2
2
4
1
0
0
0
0
1
0
0
0
1
0
1
100
500
-400
4r1k1/1Pr1K3/8/3b3N/8/6P1/3p3p/8 w - - 0 1
4
6
10
2
1
0
0
0
1
2
0
1
2
0
1
500
1,550
-1,050
7b/5R2/2b1PK2/p2q2P1/3pn2R/4N1pP/p3p3/k7 w - - 0 1
7
10
17
3
1
0
2
0
1
5
1
2
0
1
1
1,600
2,400
-800
8/K6P/3kp3/Pn2npqB/3B1P2/4p3/1p2pR2/6R1 w - - 0 1
8
9
17
3
0
2
2
0
1
5
2
0
0
1
1
2,000
2,000
0
n7/1r4k1/3K2P1/P4Pp1/8/8/4P2P/8 w - - 0 1
6
4
10
5
0
0
0
0
1
1
1
0
1
0
1
500
900
-400
1R2n2k/5B2/8/p3P3/7K/8/8/8 w - - 0 1
4
3
7
1
0
1
1
0
1
1
1
0
0
0
1
950
400
550
8/4K3/4Pp2/4N3/1pB5/3p1QpP/6nr/2k5 w - - 0 1
6
7
13
2
1
1
0
1
1
4
1
0
1
0
1
1,750
1,200
550
8/4P1Pb/3n1pP1/K1p2Pr1/8/1q1P4/3r1k2/2B5 w - - 0 1
7
8
15
5
0
1
0
0
1
2
1
1
2
1
1
850
2,750
-1,900
8/7B/7p/p4q2/6K1/2N5/8/2k5 w - - 0 1
3
4
7
0
1
1
0
0
1
2
0
0
0
1
1
650
1,100
-450
8/4Qpp1/pP3b1r/P2K2pp/8/1n3k2/1bP5/8 w - - 0 1
5
10
15
3
0
0
0
1
1
5
1
2
1
0
1
1,200
2,000
-800
2B2Q2/5N1p/3pp3/pP6/1P2n1B1/r2r4/1P2Kp1k/8 w - - 0 1
8
9
17
3
1
2
0
1
1
5
1
0
2
0
1
2,200
1,800
400
3q4/PP2n3/2P3K1/2R1k3/5P1p/5P2/8/8 w - - 0 1
7
4
11
5
0
0
1
0
1
1
1
0
0
1
1
1,000
1,300
-300
2kn4/4PP1P/6R1/3b4/6p1/B3KPp1/8/8 w - - 0 1
7
5
12
4
0
1
1
0
1
2
1
1
0
0
1
1,250
850
400
8/8/8/4p3/2Kp1N2/3p1b2/6pb/6k1 w - - 0 1
2
7
9
0
1
0
0
0
1
4
0
2
0
0
1
300
1,100
-800
7R/1P6/3K3p/2r2n1p/2pk3P/8/8/3B2q1 w - - 0 1
5
7
12
2
0
1
1
0
1
3
1
0
1
1
1
1,050
2,000
-950
1K6/6p1/7n/8/7Q/8/8/3k4 w - - 0 1
2
3
5
0
0
0
0
1
1
1
1
0
0
0
1
900
400
500
8/3rPP2/B7/6kr/8/7p/2P4P/2n2K2 w - - 0 1
6
5
11
4
0
1
0
0
1
1
1
0
2
0
1
750
1,400
-650
2K5/8/8/8/8/p7/8/5q1k w - - 0 1
1
3
4
0
0
0
0
0
1
1
0
0
0
1
1
0
1,000
-1,000
6N1/nr5P/7p/4KP2/1p3p2/k1BpRP2/2q1P3/7B w - - 0 1
9
8
17
4
1
2
1
0
1
4
1
0
1
1
1
1,900
2,100
-200
2k5/7r/8/8/4K1N1/7b/3p4/8 w - - 0 1
2
4
6
0
1
0
0
0
1
1
0
1
1
0
1
300
950
-650
3K3k/4P2P/8/8/4N3/1Pp5/3p4/8 w - - 0 1
5
3
8
3
1
0
0
0
1
2
0
0
0
0
1
600
200
400
2r5/8/3P4/8/p2k2K1/7p/2p2NB1/3r4 w - - 0 1
4
6
10
1
1
1
0
0
1
3
0
0
2
0
1
750
1,300
-550
2K1B3/3p4/1N3rp1/2p5/p7/B3PP2/8/k7 w - - 0 1
6
6
12
2
1
2
0
0
1
4
0
0
1
0
1
1,200
900
300
8/4p3/5Bpk/8/1K1p4/p7/8/8 w - - 0 1
2
5
7
0
0
1
0
0
1
4
0
0
0
0
1
350
400
-50
k7/1P6/PK3p2/8/2b1p3/8/8/8 w - - 0 1
3
4
7
2
0
0
0
0
1
2
0
1
0
0
1
200
550
-350
2K5/2R5/2p2P2/1p1p1Pk1/1p1N4/1r6/3Pb3/8 w - - 0 1
6
7
13
3
1
0
1
0
1
4
0
1
1
0
1
1,100
1,250
-150
8/1k2B3/PP6/K7/6P1/5N2/p4N2/R7 w - - 0 1
8
2
10
3
2
1
1
0
1
1
0
0
0
0
1
1,750
100
1,650
8/1Pk2q2/4N3/2p5/2p2N1P/8/5pP1/B1K2R2 w - - 0 1
8
5
13
3
2
1
1
0
1
3
0
0
0
1
1
1,750
1,200
550
4bn2/6p1/2P1b3/5kP1/2K4P/r1P2q2/2p5/N7 w - - 0 1
6
8
14
4
1
0
0
0
1
2
1
2
1
1
1
700
2,600
-1,900
8/P1p5/6Q1/K5R1/3k4/P3p3/5P1p/3b4 w - - 0 1
6
5
11
3
0
0
1
1
1
3
0
1
0
0
1
1,700
650
1,050
2Q4b/P1r2P2/1B1n4/1k6/5p2/2p3p1/2P3K1/8 w - - 0 1
6
7
13
3
0
1
0
1
1
3
1
1
1
0
1
1,550
1,450
100
1N2R3/8/1K3r2/2p5/1B6/1nP5/2k5/8 w - - 0 1
5
4
9
1
1
1
1
0
1
1
1
0
1
0
1
1,250
900
350
6q1/1N6/pp4r1/pPK1p3/6b1/2k3P1/6B1/8 w - - 0 1
5
8
13
2
1
1
0
0
1
4
0
1
1
1
1
850
2,150
-1,300
5r2/3bp1Q1/p5NK/2P5/4Pp2/8/3N3k/6B1 w - - 0 1
7
6
13
2
2
1
0
1
1
3
0
1
1
0
1
2,050
1,150
900
8/8/8/7K/8/8/P5B1/4k3 w - - 0 1
3
1
4
1
0
1
0
0
1
0
0
0
0
0
1
450
0
450
1Nq5/P3p3/4r3/2kBpP2/2P2NP1/R3b2K/1p6/8 w - - 0 1
9
7
16
4
2
1
1
0
1
3
0
1
1
1
1
1,850
2,050
-200
8/8/2n5/6P1/3K4/4p1k1/p1n3r1/6b1 w - - 0 1
2
7
9
1
0
0
0
0
1
2
2
1
1
0
1
100
1,650
-1,550
3R1K2/8/5p1p/Pb5p/4p3/4PB2/1p1P2N1/1n1k4 w - - 0 1
7
8
15
3
1
1
1
0
1
5
1
1
0
0
1
1,450
1,150
300
3N4/pK6/1P5P/p4P2/4B1k1/P3r3/3P4/8 w - - 0 1
8
4
12
5
1
1
0
0
1
2
0
0
1
0
1
1,150
700
450
4K3/8/7p/1N5p/p4k2/3PR3/8/8 w - - 0 1
4
4
8
1
1
0
1
0
1
3
0
0
0
0
1
900
300
600
8/2r1K3/8/4k1p1/6N1/4b3/q7/8 w - - 0 1
2
5
7
0
1
0
0
0
1
1
0
1
1
1
1
300
1,850
-1,550
3n4/8/2r5/3P3p/2k4P/1p6/4n3/1K6 w - - 0 1
3
6
9
2
0
0
0
0
1
2
2
0
1
0
1
200
1,300
-1,100
k7/1P6/8/p7/7b/7P/2K1b1Pp/8 w - - 0 1
4
5
9
3
0
0
0
0
1
2
0
2
0
0
1
300
900
-600
8/2Pp1k2/8/1K6/8/8/4r3/5N2 w - - 0 1
3
3
6
1
1
0
0
0
1
1
0
0
1
0
1
400
600
-200
1K6/5p2/B7/3p4/7p/5N2/p4k2/5Q2 w - - 0 1
4
5
9
0
1
1
0
1
1
4
0
0
0
0
1
1,550
400
1,150
5K2/2R5/1P4p1/4P3/n5k1/1p3QP1/P3pn1b/r7 w - - 0 1
7
8
15
4
0
0
1
1
1
3
2
1
1
0
1
1,800
1,750
50
8/R7/1Bp5/8/1p3K2/8/3p4/2k5 w - - 0 1
3
4
7
0
0
1
1
0
1
3
0
0
0
0
1
850
300
550
8/1k6/B7/Pp6/5n2/2P2b2/p7/4K3 w - - 0 1
4
5
9
2
0
1
0
0
1
2
1
1
0
0
1
550
850
-300
8/8/8/1bP5/3n4/2k5/8/K7 w - - 0 1
2
3
5
1
0
0
0
0
1
0
1
1
0
0
1
100
650
-550
8/2Q2p2/2B2r2/8/8/8/k6K/8 w - - 0 1
3
3
6
0
0
1
0
1
1
1
0
0
1
0
1
1,250
600
650
8/1pN1n3/2r5/3P4/1p3k2/8/3P4/5r1K w - - 0 1
4
6
10
2
1
0
0
0
1
2
1
0
2
0
1
500
1,500
-1,000
4Kr2/3N1nr1/8/7p/1kPb4/8/QP6/8 w - - 0 1
5
6
11
2
1
0
0
1
1
1
1
1
2
0
1
1,400
1,750
-350
3Q4/p6p/3n2K1/P3p3/P6N/8/p6p/2kr4 w - - 0 1
5
8
13
2
1
0
0
1
1
5
1
0
1
0
1
1,400
1,300
100
8/k2P2P1/1np2BPb/2p3p1/5r2/4r1p1/5KP1/5Q2 w - - 0 1
7
9
16
4
0
1
0
1
1
4
1
1
2
0
1
1,650
2,050
-400
3R4/2pp2p1/5RP1/3BP3/1p2b1n1/3k3N/7K/4q3 w - - 0 1
7
8
15
2
1
1
2
0
1
4
1
1
0
1
1
1,850
1,950
-100
2N5/1Np2k2/6p1/2PbR3/r1pP3p/1p4K1/3PQ3/8 w - - 0 1
8
8
16
3
2
0
1
1
1
5
0
1
1
0
1
2,300
1,350
950
6N1/5p2/4P3/8/3P3K/3k2p1/8/8 w - - 0 1
4
3
7
2
1
0
0
0
1
2
0
0
0
0
1
500
200
300
6k1/n6Q/8/1NP5/Pp6/1P6/6p1/2K5 w - - 0 1
6
4
10
3
1
0
0
1
1
2
1
0
0
0
1
1,500
500
1,000
B7/8/8/8/5p2/3K2Q1/8/6k1 w - - 0 1
3
2
5
0
0
1
0
1
1
1
0
0
0
0
1
1,250
100
1,150
4k3/8/6N1/8/2p2Kp1/8/8/8 w - - 0 1
2
3
5
0
1
0
0
0
1
2
0
0
0
0
1
300
200
100
K7/6P1/4k1P1/4NP2/8/8/5P2/8 w - - 0 1
6
1
7
4
1
0
0
0
1
0
0
0
0
0
1
700
0
700
4k3/8/2P2Bp1/5N1p/5P2/1K2P3/8/8 w - - 0 1
6
3
9
3
1
1
0
0
1
2
0
0
0
0
1
950
200
750
8/3pp1k1/1ppbQ3/p3K3/2R4P/3nP3/R7/B7 w - - 0 1
7
8
15
2
0
1
2
1
1
5
1
1
0
0
1
2,450
1,150
1,300
8/8/2p5/p7/2p5/3K4/1b6/2qb1k2 w - - 0 1
1
7
8
0
0
0
0
0
1
3
0
2
0
1
1
0
1,900
-1,900
2b4K/8/8/8/2p3n1/8/8/2k2b2 w - - 0 1
1
5
6
0
0
0
0
0
1
1
1
2
0
0
1
0
1,100
-1,100
8/3k4/B1n1P1P1/2K1p3/5P2/8/4Q3/8 w - - 0 1
6
3
9
3
0
1
0
1
1
1
1
0
0
0
1
1,550
400
1,150
3rn3/6P1/K2b2Pr/8/1P1p1p2/6B1/1NP1q2P/6k1 w - - 0 1
8
8
16
5
1
1
0
0
1
2
1
1
2
1
1
1,150
2,750
-1,600
1N6/3b1KPp/5p2/1k2B3/1P6/5p2/1n5Q/8 w - - 0 1
6
6
12
2
1
1
0
1
1
3
1
1
0
0
1
1,750
950
800
8/1p4p1/NP6/Kr6/1P6/b1qp2kp/5PPR/n7 w - - 0 1
7
9
16
4
1
0
1
0
1
4
1
1
1
1
1
1,200
2,450
-1,250
8/8/2K1p3/N7/3P4/8/8/2k5 w - - 0 1
3
2
5
1
1
0
0
0
1
1
0
0
0
0
1
400
100
300
8/5P2/1P6/4r1P1/1Pr2bPP/b2K2PP/n3Q3/3n2k1 w - - 0 1
10
7
17
8
0
0
0
1
1
0
2
2
2
0
1
1,700
2,300
-600
5q2/2k2RRP/P2P4/3b1N2/1nK4p/2p5/4p3/8 w - - 0 1
7
7
14
3
1
0
2
0
1
3
1
1
0
1
1
1,600
1,850
-250
7b/1p6/N7/5K2/8/4k3/4p3/8 w - - 0 1
2
4
6
0
1
0
0
0
1
2
0
1
0
0
1
300
550
-250
6k1/7N/4q3/5PK1/7r/8/1p2r2n/8 w - - 0 1
3
6
9
1
1
0
0
0
1
1
1
0
2
1
1
400
2,300
-1,900
8/8/1K6/6r1/8/8/1p6/1k6 w - - 0 1
1
3
4
0
0
0
0
0
1
1
0
0
1
0
1
0
600
-600
4N3/5b2/1pkP1Pq1/1n1R1KP1/3P4/4r3/1p4pp/3b4 w - - 0 1
7
10
17
4
1
0
1
0
1
4
1
2
1
1
1
1,200
2,800
-1,600
8/5P2/K2p4/8/8/8/k7/8 w - - 0 1
2
2
4
1
0
0
0
0
1
1
0
0
0
0
1
100
100
0
3r4/1K5P/1p6/3P3p/2PbP1n1/2Q2p2/8/6Bk w - - 0 1
7
7
14
4
0
1
0
1
1
3
1
1
1
0
1
1,650
1,450
200
8/8/5r2/3pBp2/6r1/P2K4/6k1/8 w - - 0 1
3
5
8
1
0
1
0
0
1
2
0
0
2
0
1
450
1,200
-750
5K2/2pP3N/8/2Rp4/8/8/8/1k1Br3 w - - 0 1
5
4
9
1
1
1
1
0
1
2
0
0
1
0
1
1,250
700
550
5R2/B1k5/pNP2K2/p7/8/4NR1b/PP1p1Pq1/8 w - - 0 1
10
6
16
4
2
1
2
0
1
3
0
1
0
1
1
2,350
1,550
800
2n5/2n5/3Pq3/1p5r/2B1P3/p7/2Pk1R2/1K6 w - - 0 1
6
7
13
3
0
1
1
0
1
2
2
0
1
1
1
1,150
2,200
-1,050
8/6p1/6K1/8/PkP5/7P/8/8 w - - 0 1
4
2
6
3
0
0
0
0
1
1
0
0
0
0
1
300
100
200
1R6/8/2q5/8/k7/1P1p2PK/N3nP2/8 w - - 0 1
6
4
10
3
1
0
1
0
1
1
1
0
0
1
1
1,100
1,300
-200
8/2P4K/8/8/8/3k4/5p2/8 w - - 0 1
2
2
4
1
0
0
0
0
1
1
0
0
0
0
1
100
100
0
8/1kb1p2P/5R2/4Kp2/3n4/8/8/8 w - - 0 1
3
5
8
1
0
0
1
0
1
2
1
1
0
0
1
600
850
-250
Bk1r4/2p4R/1p3K2/p2p4/6p1/2n1P3/4bp2/1n6 w - - 0 1
4
11
15
1
0
1
1
0
1
6
2
1
1
0
1
950
2,050
-1,100
8/5p1n/8/8/8/8/3P2K1/k7 w - - 0 1
2
3
5
1
0
0
0
0
1
1
1
0
0
0
1
100
400
-300
8/2p5/8/8/6p1/K7/8/3k4 w - - 0 1
1
3
4
0
0
0
0
0
1
2
0
0
0
0
1
0
200
-200
8/P3p1P1/4n3/PBK5/3b2pp/p4qr1/4k3/1N6 w - - 0 1
6
9
15
3
1
1
0
0
1
4
1
1
1
1
1
950
2,450
-1,500
6qr/pP1NR2K/3k4/2P1b3/6P1/p1p3p1/8/3n4 w - - 0 1
6
9
15
3
1
0
1
0
1
4
1
1
1
1
1
1,100
2,450
-1,350