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
k1q1R3/8/1K6/2p2Pp1/4P3/8/8/1r2N3 w - - 0 1
5
5
10
2
1
0
1
0
1
2
0
0
1
1
1
1,000
1,600
-600
4k1K1/7P/8/8/4Pp2/6R1/8/8 w - - 0 1
4
2
6
2
0
0
1
0
1
1
0
0
0
0
1
700
100
600
8/3nP3/2k5/2n5/1b5K/3p2q1/8/8 w - - 0 1
2
6
8
1
0
0
0
0
1
1
2
1
0
1
1
100
1,950
-1,850
2B5/k5np/5n2/6K1/4Pr2/PP2P3/1R4P1/8 w - - 0 1
8
5
13
5
0
1
1
0
1
1
2
0
1
0
1
1,350
1,200
150
5k2/2PP3P/p7/4r3/1bP5/4r3/P4p2/n4K2 w - - 0 1
6
7
13
5
0
0
0
0
1
2
1
1
2
0
1
500
1,850
-1,350
1r6/8/3K4/4p3/2P1p3/B3pN2/2k2q1P/8 w - - 0 1
5
6
11
2
1
1
0
0
1
3
0
0
1
1
1
850
1,700
-850
8/P1p3n1/4Pp2/4k3/PKp1n1q1/r3Bp2/4P1B1/r7 w - - 0 1
7
10
17
4
0
2
0
0
1
4
2
0
2
1
1
1,100
2,900
-1,800
1R3kn1/6P1/1p1Rp3/4Q3/3K1p2/2P4p/1P6/n3bB2 w - - 0 1
8
8
16
3
0
1
2
1
1
4
2
1
0
0
1
2,550
1,350
1,200
2B5/3p1R2/3p2P1/B1NP2P1/2nP3K/Pq6/1r6/4k3 w - - 0 1
10
6
16
5
1
2
1
0
1
2
1
0
1
1
1
2,000
1,900
100
2b5/3p4/1p2P3/1k2p3/4p3/1N3K2/1P1RBp2/1r6 w - - 0 1
6
8
14
2
1
1
1
0
1
5
0
1
1
0
1
1,350
1,350
0
8/1p6/3P4/3KB3/R7/2k5/1P1p3R/1N6 w - - 0 1
7
3
10
2
1
1
2
0
1
2
0
0
0
0
1
1,850
200
1,650
4R3/5PpB/1Q1p2P1/7p/4n1Bk/4r3/2pP4/n3K3 w - - 0 1
8
8
16
3
0
2
1
1
1
4
2
0
1
0
1
2,400
1,500
900
8/8/k7/6P1/4p3/5K2/8/8 w - - 0 1
2
2
4
1
0
0
0
0
1
1
0
0
0
0
1
100
100
0
7r/1p1QP1P1/2K1P3/3Pk1R1/4b2p/6p1/1p6/4N3 w - - 0 1
8
7
15
4
1
0
1
1
1
4
0
1
1
0
1
2,100
1,250
850
7k/4Q3/7N/8/5B2/1pP5/2K2P2/7R w - - 0 1
7
2
9
2
1
1
1
1
1
1
0
0
0
0
1
2,250
100
2,150
8/1P5N/5p2/8/4K1P1/7P/8/1k6 w - - 0 1
5
2
7
3
1
0
0
0
1
1
0
0
0
0
1
600
100
500
8/7k/8/8/7P/3K4/R7/8 w - - 0 1
3
1
4
1
0
0
1
0
1
0
0
0
0
0
1
600
0
600
2N5/7K/8/8/6p1/8/p7/3k4 w - - 0 1
2
3
5
0
1
0
0
0
1
2
0
0
0
0
1
300
200
100
8/6pP/2p5/3B4/1p3B2/P1K1p3/Q2P2N1/4k3 w - - 0 1
8
5
13
3
1
2
0
1
1
4
0
0
0
0
1
2,200
400
1,800
8/4p1k1/7r/1b4B1/2p4p/7N/6p1/1n1qK3 w - - 0 1
3
9
12
0
1
1
0
0
1
4
1
1
1
1
1
650
2,450
-1,800
8/1p1k4/8/1p6/1bK5/P2N3R/3P4/8 w - - 0 1
5
4
9
2
1
0
1
0
1
2
0
1
0
0
1
1,000
550
450
R6B/2R1p1Q1/5Ppp/K5k1/1NPb4/2P5/2P3p1/6N1 w - - 0 1
11
6
17
4
2
1
2
1
1
4
0
1
0
0
1
3,250
750
2,500
6bK/4Q3/1p3P2/8/3nbpr1/8/n7/2r4k w - - 0 1
3
9
12
1
0
0
0
1
1
2
2
2
2
0
1
1,000
2,500
-1,500
7K/8/8/Np6/8/8/7k/5n2 w - - 0 1
2
3
5
0
1
0
0
0
1
1
1
0
0
0
1
300
400
-100
1n6/8/1p1p3P/8/6R1/3P4/2k1K3/5b2 w - - 0 1
4
5
9
2
0
0
1
0
1
2
1
1
0
0
1
700
850
-150
5b2/3q4/8/5P2/2P5/8/K3kr2/8 w - - 0 1
3
4
7
2
0
0
0
0
1
0
0
1
1
1
1
200
1,750
-1,550
8/4P3/6q1/1P4k1/2P5/8/5N2/3K4 w - - 0 1
5
2
7
3
1
0
0
0
1
0
0
0
0
1
1
600
900
-300
8/2n4k/2P5/6P1/K6Q/2p5/4p1pp/2r3B1 w - - 0 1
5
7
12
2
0
1
0
1
1
4
1
0
1
0
1
1,450
1,200
250
1N6/8/8/8/P7/2K5/8/6k1 w - - 0 1
3
1
4
1
1
0
0
0
1
0
0
0
0
0
1
400
0
400
3R4/8/4P3/2PPP2n/R1P3k1/2K4n/8/8 w - - 0 1
8
3
11
5
0
0
2
0
1
0
2
0
0
0
1
1,500
600
900
8/3k4/2PB3N/8/6p1/Rpr4p/7P/1K3Qb1 w - - 0 1
7
6
13
2
1
1
1
1
1
3
0
1
1
0
1
2,250
1,150
1,100
8/2k2b2/8/5P2/5p2/5K2/8/8 w - - 0 1
2
3
5
1
0
0
0
0
1
1
0
1
0
0
1
100
450
-350
7r/8/6p1/1p6/1b5p/3K4/6k1/8 w - - 0 1
1
6
7
0
0
0
0
0
1
3
0
1
1
0
1
0
1,150
-1,150
8/8/5p2/1bPK4/ppPn4/4B3/r2P3p/3k4 w - - 0 1
5
8
13
3
0
1
0
0
1
4
1
1
1
0
1
650
1,550
-900
3B4/1p1qk1B1/n1pR3p/3K4/2N1PP1p/4R2p/3P4/8 w - - 0 1
9
8
17
3
1
2
2
0
1
5
1
0
0
1
1
2,300
1,700
600
8/3N3k/2bK4/7P/2Pp4/8/5P2/8 w - - 0 1
5
3
8
3
1
0
0
0
1
1
0
1
0
0
1
600
450
150
8/1n4k1/P1B5/4p2P/5N2/1PR5/6K1/8 w - - 0 1
7
3
10
3
1
1
1
0
1
1
1
0
0
0
1
1,450
400
1,050
8/2Q1pk2/4b1Pp/P4p1P/8/2r2Bn1/1Np4p/3R2K1 w - - 0 1
8
9
17
3
1
1
1
1
1
5
1
1
1
0
1
2,350
1,650
700
8/7p/8/8/6K1/8/1B6/6k1 w - - 0 1
2
2
4
0
0
1
0
0
1
1
0
0
0
0
1
350
100
250
5R2/1Nk2P2/K2p1q2/1P2p3/p6P/3p4/B6p/8 w - - 0 1
7
7
14
3
1
1
1
0
1
5
0
0
0
1
1
1,450
1,400
50
4b1N1/1B2P3/1r1PK3/5PP1/P7/8/2k1pn2/6r1 w - - 0 1
8
6
14
5
1
1
0
0
1
1
1
1
2
0
1
1,150
1,750
-600
4B3/1k6/3r4/1K5N/1p6/8/8/8 w - - 0 1
3
3
6
0
1
1
0
0
1
1
0
0
1
0
1
650
600
50
6R1/2Kr4/8/8/n6q/8/4k3/8 w - - 0 1
2
4
6
0
0
0
1
0
1
0
1
0
1
1
1
500
1,700
-1,200
2K5/1p5b/6p1/1P3B2/7P/2R5/8/k1q3N1 w - - 0 1
6
5
11
2
1
1
1
0
1
2
0
1
0
1
1
1,350
1,450
-100
r4n2/3p1B2/8/N1r1p3/kq1p4/1P6/6p1/7K w - - 0 1
4
9
13
1
1
1
0
0
1
4
1
0
2
1
1
750
2,600
-1,850
5k2/1P6/2pp4/1n2r2P/2K1P1nq/7B/2P3R1/8 w - - 0 1
7
7
14
4
0
1
1
0
1
2
2
0
1
1
1
1,250
2,200
-950
1R6/4K3/8/3k4/5P2/8/8/8 w - - 0 1
3
1
4
1
0
0
1
0
1
0
0
0
0
0
1
600
0
600
4qR2/1ppP4/1b2pn2/3K1p2/3n4/2p4b/PPr5/2k5 w - - 0 1
5
12
17
3
0
0
1
0
1
5
2
2
1
1
1
800
3,200
-2,400
k4b2/2K1b3/pP1p1R2/8/8/3Q4/1PP4P/8 w - - 0 1
7
5
12
4
0
0
1
1
1
2
0
2
0
0
1
1,800
900
900
8/5p2/3P2B1/8/2P2p2/3P4/2k2q2/5KR1 w - - 0 1
6
4
10
3
0
1
1
0
1
2
0
0
0
1
1
1,150
1,100
50
2K5/P7/r5pp/1Pp5/2k5/Q7/1BP2p2/N7 w - - 0 1
7
6
13
3
1
1
0
1
1
4
0
0
1
0
1
1,850
900
950
3b4/nP2pP2/4K3/2q3BP/6P1/6P1/5P2/3k4 w - - 0 1
8
5
13
6
0
1
0
0
1
1
1
1
0
1
1
950
1,650
-700
8/2k4q/p5p1/6P1/rP6/b1pN1p1p/Kb1p3N/8 w - - 0 1
5
11
16
2
2
0
0
0
1
6
0
2
1
1
1
800
2,700
-1,900
8/8/3K4/8/2P4p/5k2/8/8 w - - 0 1
2
2
4
1
0
0
0
0
1
1
0
0
0
0
1
100
100
0
7r/4pP2/5N2/2PK2P1/pPbP3N/p6Q/8/2rk4 w - - 0 1
9
7
16
5
2
0
0
1
1
3
0
1
2
0
1
2,000
1,650
350
1K6/5k2/4P3/8/8/Np6/8/4N3 w - - 0 1
4
2
6
1
2
0
0
0
1
1
0
0
0
0
1
700
100
600
8/1PK5/6p1/1kP5/8/8/8/8 w - - 0 1
3
2
5
2
0
0
0
0
1
1
0
0
0
0
1
200
100
100
7n/8/2K3P1/8/3P4/p2k1p2/8/7N w - - 0 1
4
4
8
2
1
0
0
0
1
2
1
0
0
0
1
500
500
0
6K1/1N2Q1PB/3pp3/k5R1/4B3/8/1p2P3/1NR5 w - - 0 1
10
4
14
2
2
2
2
1
1
3
0
0
0
0
1
3,400
300
3,100
8/2p5/1k2p1n1/8/2p5/7K/7B/8 w - - 0 1
2
5
7
0
0
1
0
0
1
3
1
0
0
0
1
350
600
-250
8/3p4/NkP1p3/7K/2pp1n1p/4p3/1qR3b1/r7 w - - 0 1
4
11
15
1
1
0
1
0
1
6
1
1
1
1
1
900
2,650
-1,750
2k3B1/1p6/2r2N2/8/1b1KP3/5p2/1p2p3/N7 w - - 0 1
5
7
12
1
2
1
0
0
1
4
0
1
1
0
1
1,050
1,250
-200
8/6p1/P4Bp1/1P6/1PK5/6r1/1n3k1p/1n1b4 w - - 0 1
5
8
13
3
0
1
0
0
1
3
2
1
1
0
1
650
1,750
-1,100
8/8/1p3b2/8/P7/2r2K2/6N1/kn4R1 w - - 0 1
4
5
9
1
1
0
1
0
1
1
1
1
1
0
1
900
1,250
-350
3kq3/P7/2P1P3/P1np3K/8/8/8/3r4 w - - 0 1
5
5
10
4
0
0
0
0
1
1
1
0
1
1
1
400
1,800
-1,400
3Q4/3P3b/6n1/4K3/3N4/4Ppk1/7B/8 w - - 0 1
6
4
10
2
1
1
0
1
1
1
1
1
0
0
1
1,750
750
1,000
8/8/2k4p/1R6/8/8/1P6/7K w - - 0 1
3
2
5
1
0
0
1
0
1
1
0
0
0
0
1
600
100
500
8/1p4K1/Nb4pP/1R6/4pp2/5Pr1/3k1Q2/b7 w - - 0 1
6
8
14
2
1
0
1
1
1
4
0
2
1
0
1
1,900
1,600
300
8/R7/P2P3R/8/8/2P2pn1/k1B5/5K2 w - - 0 1
7
3
10
3
0
1
2
0
1
1
1
0
0
0
1
1,650
400
1,250
6n1/4k3/7P/8/8/6K1/4pr2/8 w - - 0 1
2
4
6
1
0
0
0
0
1
1
1
0
1
0
1
100
900
-800
1b4K1/4P3/N7/8/1PB4p/8/1k6/5q2 w - - 0 1
5
4
9
2
1
1
0
0
1
1
0
1
0
1
1
850
1,350
-500
8/3K4/5N2/5p2/8/5k1R/8/2q1N3 w - - 0 1
4
3
7
0
2
0
1
0
1
1
0
0
0
1
1
1,100
1,000
100
8/8/2k5/5p2/4K3/3N3p/8/8 w - - 0 1
2
3
5
0
1
0
0
0
1
2
0
0
0
0
1
300
200
100
8/5k2/8/8/3P3p/p7/7K/8 w - - 0 1
2
3
5
1
0
0
0
0
1
2
0
0
0
0
1
100
200
-100
8/4k3/1K6/8/6B1/5P2/1P6/7n w - - 0 1
4
2
6
2
0
1
0
0
1
0
1
0
0
0
1
550
300
250
n6k/Pp6/3R4/P2p4/1R2b1n1/7p/P3Kp2/2Q5 w - - 0 1
7
8
15
3
0
0
2
1
1
4
2
1
0
0
1
2,200
1,350
850
8/2R5/8/8/5rP1/4K3/6Q1/4k3 w - - 0 1
4
2
6
1
0
0
1
1
1
0
0
0
1
0
1
1,500
500
1,000
2rK4/P2p3P/4p3/8/B1N2k1p/5b1N/P2pq3/5r2 w - - 0 1
7
9
16
3
2
1
0
0
1
4
0
1
2
1
1
1,250
2,650
-1,400
1r6/3b4/4p3/P3p3/1kp1Q3/1p3PpR/4P1K1/7N w - - 0 1
7
8
15
3
1
0
1
1
1
5
0
1
1
0
1
2,000
1,350
650
7K/2P4p/5k2/1b1P4/1P6/8/7p/8 w - - 0 1
4
4
8
3
0
0
0
0
1
2
0
1
0
0
1
300
550
-250
8/5p2/5k1p/4P3/Q6p/2K4R/5P2/3Nb3 w - - 0 1
6
5
11
2
1
0
1
1
1
3
0
1
0
0
1
1,900
650
1,250
8/Q1p5/2k1P1nP/8/P6p/b2p2P1/1b2R3/N2r1K2 w - - 0 1
8
8
16
4
1
0
1
1
1
3
1
2
1
0
1
2,100
1,800
300
8/1N1p3q/3p4/7p/5N1r/3K3k/1p1p1P2/2B5 w - - 0 1
5
8
13
1
2
1
0
0
1
5
0
0
1
1
1
1,050
1,900
-850
2R2k2/8/p7/8/8/8/1K6/8 w - - 0 1
2
2
4
0
0
0
1
0
1
1
0
0
0
0
1
500
100
400
3bK3/1p4pP/7p/p1R1k3/1P1P4/8/8/q4n2 w - - 0 1
5
8
13
3
0
0
1
0
1
4
1
1
0
1
1
800
1,950
-1,150
1r6/5k2/1n4P1/4b2p/1p2pn2/3q1R2/3P4/1K6 w - - 0 1
4
9
13
2
0
0
1
0
1
3
2
1
1
1
1
700
2,650
-1,950
8/1p2N3/n1p5/p7/5r2/P1P1K3/1k4B1/8 w - - 0 1
5
6
11
2
1
1
0
0
1
3
1
0
1
0
1
850
1,100
-250
B3Q3/8/2P1r3/p1pK3k/p7/1pP4p/8/3n4 w - - 0 1
5
8
13
2
0
1
0
1
1
5
1
0
1
0
1
1,450
1,300
150
R7/4p3/8/8/8/8/8/1K3k2 w - - 0 1
2
2
4
0
0
0
1
0
1
1
0
0
0
0
1
500
100
400
8/2P3P1/6b1/1K1P4/5R1k/3n4/4p2q/8 w - - 0 1
5
5
10
3
0
0
1
0
1
1
1
1
0
1
1
800
1,650
-850
8/8/8/7p/2k4r/8/4pK2/3q4 w - - 0 1
1
5
6
0
0
0
0
0
1
2
0
0
1
1
1
0
1,600
-1,600
1K6/8/8/5kpP/4p3/8/8/N7 w - - 0 1
3
3
6
1
1
0
0
0
1
2
0
0
0
0
1
400
200
200
2Bb1q2/3P3P/2n5/kP1P2P1/3R4/5K1P/4P1N1/1r6 w - - 0 1
11
5
16
7
1
1
1
0
1
0
1
1
1
1
1
1,850
2,050
-200
1QB5/8/2P1R3/2kP1P1K/4P1b1/5Np1/1p5p/8 w - - 0 1
9
5
14
4
1
1
1
1
1
3
0
1
0
0
1
2,450
650
1,800
8/2Pk1K2/5q2/8/2P5/Pp6/3rBN2/8 w - - 0 1
6
4
10
3
1
1
0
0
1
1
0
0
1
1
1
950
1,500
-550
8/4B1pp/7p/4p3/1k1P4/8/7P/6K1 w - - 0 1
4
5
9
2
0
1
0
0
1
4
0
0
0
0
1
550
400
150
8/8/5P2/8/1K3P2/1p6/1P1k4/8 w - - 0 1
4
2
6
3
0
0
0
0
1
1
0
0
0
0
1
300
100
200
5q2/8/P7/7K/8/8/2k5/8 w - - 0 1
2
2
4
1
0
0
0
0
1
0
0
0
0
1
1
100
900
-800
3B4/2R5/2k4P/1PR1P2p/3P2P1/1P6/3K4/2N3n1 w - - 0 1
11
3
14
6
1
1
2
0
1
1
1
0
0
0
1
2,250
400
1,850
5r2/3p4/8/3P1p1N/8/p6q/1b3P2/2kb1K1n w - - 0 1
4
9
13
2
1
0
0
0
1
3
1
2
1
1
1
500
2,700
-2,200