fen
stringlengths
24
77
eval
int64
-20,000
20k
simple_eval
int64
-51,500
18k
eval_delta
int64
-20,950
41.5k
is_quiet
bool
2 classes
evals
dict
rnbq1rk1/pp2ppbp/3p1np1/8/3NPP2/2N1B3/PPP1B1PP/R2QK2R b KQ -
0
0
0
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ 0, 0, 4, 9, 20 ], "line": [ "b8c6 e1h1 d8b6 c3a4 b6c7 a4c3 c7b6", "c8d7 a2a4 b8c6 e1h1 c6d4 e3d4 d7c6 a4a5 e7e5 f4e5", ...
8/5K2/1N6/8/8/6Q1/7Q/k7 w - -
10,000
2,100
7,900
false
{ "pvs": [ { "mate": [ 1 ], "cp": [ null ], "line": [ "g3g1" ] } ], "knodes": [ 80 ], "depth": [ 99 ] }
r2qk2r/1p2bppp/p2p1n2/2nPp3/8/1N1QB3/PPP1BPPP/R3K2R w KQkq -
72
50
22
false
{ "pvs": [ { "mate": [ null ], "cp": [ 72 ], "line": [ "b3c5 d6c5 e1a1 e7d6 g2g4 e5e4 d3a3 f6d7 h2h4 b7b5" ] }, { "mate": [ null, null, null, null, null ], "cp": [ 76, 24, ...
r2qkbnr/pp1n1ppp/2p1p3/3pP3/3P4/P1PQ4/1P3PPP/RNB1K1NR b KQkq -
14
0
14
false
{ "pvs": [ { "mate": [ null ], "cp": [ 14 ], "line": [ "g8e7 g1e2 d8b6 e1h1 a7a5 a3a4 e7f5 e2g3 f5g3 d3g3" ] } ], "knodes": [ 15950 ], "depth": [ 26 ] }
r2q1rk1/ppn1ppbp/2n1b1p1/2P5/2B5/2P2N2/PP2QPPP/RNB2RK1 w - -
102
100
2
false
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ 102, 98, 94 ], "line": [ "c4b3 a7a5 b3e6 c7e6 c1e3 d8d5 f1d1 d5f5 e2b5 c6e5", "b1a3 e6c4 e2c4 d8d7 h2h3 f8d8 c4b3 c6a5 b3c2 d7f5", "b1d2 d8d7 c4e6 d7e6 e2e6 c7e6...
4r1k1/1pp1qpp1/2bp1n1p/6r1/pP1QP3/P4B2/1B1N1PPP/2R1R1K1 w - -
432
250
182
false
{ "pvs": [ { "mate": [ null ], "cp": [ 432 ], "line": [ "g2g3 c6b5 e1e3 f6g4 f3g4 g5g4 d4c3 g4g6 d2f1 c7c5" ] } ], "knodes": [ 3215 ], "depth": [ 19 ] }
r1bqk1nr/pppnbppp/8/4p3/2B1P3/5N2/PPP2PPP/RNBQK2R w KQkq -
396
0
396
false
{ "pvs": [ { "mate": [ null ], "cp": [ 396 ], "line": [ "d1d5 g8h6 c1h6 e8h8 h6e3 c7c6 d5d1 d8c7 a2a4 d7c5" ] }, { "mate": [ null, null, null ], "cp": [ 455, 71, 32 ], ...
8/6R1/8/5k2/1nN3p1/6K1/8/8 w - -
20,000
400
19,600
false
{ "pvs": [ { "mate": [ null ], "cp": [ 20000 ], "line": [ "g7e7 f5f6 e7e4 f6g5 e4e5 g5f6 g3g4 b4a6 e5e4 a6c5" ] } ], "knodes": [ 64505 ], "depth": [ 35 ] }
8/R7/5k2/5n1p/4pr1P/8/8/6K1 w - -
-979
-400
-579
false
{ "pvs": [ { "mate": [ null ], "cp": [ -979 ], "line": [ "a7a6 f6e5 a6a5 e5d4 a5a4 d4d3 a4a3 d3e2 a3a5 e4e3" ] } ], "knodes": [ 3080 ], "depth": [ 18 ] }
2B5/8/1pb3p1/pP2k2p/2P1p2P/P3K1P1/8/8 b - -
369
0
369
false
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ 369, 554, 783 ], "line": [ "c6e8 c8b7 e8f7 c4c5 b6c5 b7e4 e5d6 b5b6 d6d7 e3f4", "c6a8 c4c5 b6c5 b5b6 a8c6 b6b7 c6b7 c8b7 e5f6 b7e4", "e5d6 b5c6 d6c6 e3e4 c6c5 c8...
r4rk1/pp1q2pp/5n2/1Npp4/5B2/2N5/PP2BPPP/R4RK1 b - -
-147
0
-147
false
{ "pvs": [ { "mate": [ null ], "cp": [ -147 ], "line": [ "a8e8 b5c7 e8e2 c3e2 f8c8 f1e1 d5d4 e1c1 b7b6 h2h3" ] } ], "knodes": [ 2884 ], "depth": [ 22 ] }
1br1nk2/3R1ppp/p1r1p3/8/PpN5/1P2P1P1/1B3P1P/3R2K1 b - -
130
0
130
false
{ "pvs": [ { "mate": [ null ], "cp": [ 130 ], "line": [ "b8c7 g3g4 e8f6 b2f6 g7f6 g1f1 c6c5 f2f4 h7h5 h2h3" ] } ], "knodes": [ 4486 ], "depth": [ 27 ] }
rn1q1rk1/ppp2ppp/8/3p1B2/2PP4/2b2N2/P4PPP/R1BQR1K1 b - -
292
250
42
false
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ 292, 356, 359 ], "line": [ "c3e1 d1e1 f8e8 e1c3 d5c4 c3c4 b8d7 f5c2 d8e7 c1g5", "h7h6 f5h7 g8h8 h7c2 c3a1 d1d3 f7f5 c1a3 d5c4 d3c4", "c3a1 f5h7 g8h7 f3g5 h7g8 d1...
rnbqkb1r/4pppp/p4n2/1pp5/2BP4/2N1PN2/PP3PPP/R1BQK2R w KQkq -
17
0
17
false
{ "pvs": [ { "mate": [ null ], "cp": [ 17 ], "line": [ "c4b3 e7e6 e1h1 c8b7 e3e4 c5d4 f3d4 b8c6 d4c6 d8d1" ] }, { "mate": [ null, null, null ], "cp": [ 24, 16, 15 ], "l...
2r2rk1/4bppp/4p3/p7/1p6/1QnP1NP1/P2KPP1P/2R3R1 w - -
351
550
-199
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ 351, 339, 336, 300, 285 ], "line": [ "d2e1 a5a4 b3c2 c8c7 e1f1 f8c8 f1g2 g7g5 d3d4 g8g7", "a2a4 e7f6 d2e1 f8d8 e1f1 h7h6 h2h4...
r1bqrnk1/pp3ppn/2p1p2p/2Pp4/3P1P2/P1NBP1P1/1P1B2P1/R2QK2R w KQ -
80
50
30
false
{ "pvs": [ { "mate": [ null ], "cp": [ 80 ], "line": [ "d1f3 b7b6 g3g4 f7f6 e1a1 b6c5 d3c2 a8b8 f3g3 d8e7" ] } ], "knodes": [ 6975 ], "depth": [ 21 ] }
8/3k1PK1/8/8/4R3/8/6r1/8 w - -
10,000
100
9,900
true
{ "pvs": [ { "mate": [ 29 ], "cp": [ null ], "line": [ "g7f8 g2g1 e4d4 d7c8 f8e7 g1e1 e7f6 e1f1 f6g6 c8c7" ] } ], "knodes": [ 8670 ], "depth": [ 40 ] }
r3k2r/pp2p3/1n1p2pp/1Pp1p3/2P5/2B2N2/P3KP1P/R7 w kq -
-607
-450
-157
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ -607, -607, -623, -624, -625 ], "line": [ "a1g1 g6g5 h2h4 b6c4 h4g5 h6g5 a2a4 c4b6 c3e5 d6e5", "c3e5 h8g8 a2a4 b6c4 e5f4 g6g5...
2r5/2r1kppp/p3p3/1p1bP3/1P4PP/PRPB4/1K6/2R5 b - -
-298
0
-298
false
{ "pvs": [ { "mate": [ null ], "cp": [ -298 ], "line": [ "d5b3 b2b3 c7d7 d3f1 d7d5 c1e1 d5d2 f1e2 f7f5 e5f6" ] } ], "knodes": [ 43579 ], "depth": [ 27 ] }
rnb2b1r/3qk3/2p1p1Q1/1p1np1N1/5P2/4P3/PB1P2PP/R3K2R w KQ -
124
-450
574
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ 124, -2, -25, -236, -253 ], "line": [ "b2e5 d7e8 g6e8 e7e8 e5h8 b8d7 h2h4 e6e5 f4e5 a8a4", "g5f7 h8h7 g6h7 e7e8 f7g5 d7h7 g5h...
5rk1/p5p1/1Pp4p/5P1Q/4R3/8/P1PP1P1P/2q3K1 w - -
113
300
-187
true
{ "pvs": [ { "mate": [ null, null ], "cp": [ 113, -585 ], "line": [ "g1g2 a7b6 h5g6 c1d2 e4e8 d2d5 g2g3 f8e8 g6e8 g8h7", "e4e1 c1e1 g1g2 e1e4 f2f3 e4e2 g2g3 a7b6 h2h4 e2d2" ] } ], "knodes": [ 3219 ], "depth": [ ...
R7/P5k1/2P5/8/8/2K5/8/3r4 b - -
9,605
200
9,405
false
{ "pvs": [ { "mate": [ null ], "cp": [ 9605 ], "line": [ "d1c1 c3d3 c1d1 d3c2 d1a1 c6c7 a1a2 c2b3 a2a6 c7c8q" ] } ], "knodes": [ 33235 ], "depth": [ 20 ] }
1q1NR2k/6pp/5p2/8/8/K1p5/Q7/4r2r b - -
10,000
-600
10,600
false
{ "pvs": [ { "mate": [ 4 ], "cp": [ null ], "line": [ "e1e8 d8f7 h8g8 f7h6 g8h8 a2g8 e8g8 h6f7" ] } ], "knodes": [ 3285 ], "depth": [ 99 ] }
r1bq1rk1/pp3pp1/2n1p2p/2bpP3/5P1P/2N3Q1/PPP1N1P1/2KR1B1R w - -
36
-50
86
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ 36, 5, -3, -11, -16 ], "line": [ "c1b1 f7f5 e2c1 a7a6 c1b3 c5a7 f1d3 c8d7 g3f3 c6b4", "f4f5 d8c7 c3a4 b7b6 a4c5 b6c5 e2f4 c6e...
r2q1r1k/1p1bN2p/n7/n3R2Q/p1Pp1p1N/P2P4/1P4BP/1R4K1 b - -
1,196
0
1,196
false
{ "pvs": [ { "mate": [ null ], "cp": [ 1196 ], "line": [ "a6c7 h4g6 h8g7 g6f8 d8f8 e5g5 g7f6 b1e1 d7e6 e7d5" ] } ], "knodes": [ 18001 ], "depth": [ 21 ] }
r4rk1/ppqn1ppp/3b1n2/2p1p3/3pP3/3P2PP/PPP1QPBK/R1B2RN1 w - -
43
50
-7
true
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ 43, 25, 13 ], "line": [ "a2a4 f8c8 b2b3 b7b6 c1d2 a7a6 g1f3 b6b5 c2c3 h7h6", "g1f3 a7a6 a2a4 b7b5 c2c3 b5a4 a1a4 f8b8 e2c2 a6a5", "c1d2 f8c8 c2c3 b7b5 f1c1 c7b6 ...
1r6/4b3/6N1/K1p3P1/4n2P/4k3/8/4B1R1 b - -
-86
100
-186
false
{ "pvs": [ { "mate": [ null ], "cp": [ -86 ], "line": [ "e7d6 h4h5 c5c4 h5h6 b8b3 e1b4 d6b4 a5b5 e4d6 b5c6" ] } ], "knodes": [ 3098 ], "depth": [ 21 ] }
8/5pk1/5b2/4r1p1/8/5K2/2Q5/8 b - -
-19
-150
131
false
{ "pvs": [ { "mate": [ null ], "cp": [ -19 ], "line": [ "e5a5 c2d3 a5a4 d3b5 a4d4 f3f2 d4d2 f2f3 d2b2 b5f5" ] }, { "mate": [ null, null ], "cp": [ -7, -7 ], "line": [ "e5b5 c2d...
8/8/1p6/p3p1p1/P5kP/4K1P1/8/8 w - -
0
-100
100
false
{ "pvs": [ { "mate": [ null ], "cp": [ 0 ], "line": [ "h4g5 g4g5 e3e4 b6b5 a4b5 a5a4 b5b6 a4a3 b6b7 a3a2" ] } ], "knodes": [ 1302 ], "depth": [ 28 ] }
8/R2b4/3k1p1p/6p1/3K4/2r3P1/4B2P/8 b - -
-10
-100
90
false
{ "pvs": [ { "mate": [ null ], "cp": [ -10 ], "line": [ "c3c2 d4e3 c2c5 a7a8 c5c3 e3d4 c3c2 d4e3 d7c8 e2d3" ] } ], "knodes": [ 1255 ], "depth": [ 31 ] }
1br2rk1/5pp1/p3pqn1/8/P4P2/1b2BNP1/3QBK2/R1R5 b - -
-173
-100
-73
false
{ "pvs": [ { "mate": [ null, null ], "cp": [ -173, -128 ], "line": [ "e6e5 c1c8 f8c8 a1c1 c8d8 d2b4 e5f4 g3f4 b3e6 b4c3", "c8c1 a1c1 e6e5 d2d3 e5f4 g3f4 b3a4 d3a6 f6a6 e2a6" ] } ], "knodes": [ 3081 ], "depth": [ ...
2b5/8/3k4/2p4r/p1P1R2P/P1K5/4P3/8 b - -
-507
-150
-357
false
{ "pvs": [ { "mate": [ null, null ], "cp": [ -507, -496 ], "line": [ "c8f5 e4e8 h5h4 e2e3 f5d7 e8f8 h4h2 f8b8 h2a2 b8a8", "c8e6 c3d2 h5h8 d2e3 e6f5 e4f4 d6e5 e3f3 h8h7 f3e3" ] } ], "knodes": [ 5863 ], "depth": [ ...
r1bqk2r/p4pbp/8/1p2p3/2pp4/3P2N1/PPP2PPP/R1BQ1RK1 b kq -
82
-50
132
false
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ 82, 91, 95 ], "line": [ "a7a5 f2f4 a8a6 f4e5 e8h8 a2a4 c4d3 c2d3 b5a4 c1f4", "d8d5 f2f4 c8b7 f1f2 e5e4 d3e4 d5d7 d1h5 e8a8 c1d2", "e8h8 f2f4 c8b7 f4e5 d8d5 f1f2 ...
8/8/8/8/kp6/1N4r1/PKR5/8 b - -
379
300
79
false
{ "pvs": [ { "mate": [ null ], "cp": [ 379 ], "line": [ "a4b5 c2d2 g3h3 b3d4 b5c5 d4c2 h3h4 b2b3 h4h3 b3a4" ] } ], "knodes": [ 1045 ], "depth": [ 23 ] }
r1bqk2r/p1p2ppp/3p1n2/2b1p3/N1pNP3/3P4/PPP2PPP/R1BQK2R w KQkq -
0
-50
50
false
{ "pvs": [ { "mate": [ null ], "cp": [ 0 ], "line": [ "d4f5 c8f5 e4f5 c5d4 d3c4 d8d7 c2c3 d4b6 d1c2 d7c6" ] }, { "mate": [ null, null, null ], "cp": [ 2, -1, -22 ], "li...
1rbq1rk1/4ppbp/p2p1np1/np1P2B1/1P2P3/3B1N2/P2N1PPP/R2Q1RK1 b - -
31
0
31
false
{ "pvs": [ { "mate": [ null ], "cp": [ 31 ], "line": [ "a5c4 a1c1 c4b2 d1b3 b2d3 b3d3 h7h6 g5e3 d8d7 f3d4" ] } ], "knodes": [ 90635 ], "depth": [ 36 ] }
r2qrnk1/p4pp1/2pbbp2/1p6/3P2Pp/2PBB2P/PPQ1NP2/1K1R3R w - -
-35
0
-35
false
{ "pvs": [ { "mate": [ null ], "cp": [ -35 ], "line": [ "d3e4 d8c7 d4d5 c6d5 e4d5 a8d8 d5e6 f8e6 e2d4 c7b7" ] }, { "mate": [ null, null, null, null, null ], "cp": [ -26, -3...
r1bqk2r/pp3ppp/2n1p3/2b5/2p2P2/3B1N2/PP3PPP/RN1Q1RK1 w kq -
-36
-150
114
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ -36, -124, -135, -160, -678 ], "line": [ "d3c4 d8d1 f1d1 e8e7 b1c3 h8d8 d1d8 c6d8 a1e1 c8d7", "d3e4 d8d1 f1d1 c6a5 b1c3 a7a6 ...
r1bq1r1k/pp1nb1Rn/8/3pN3/3p1B2/2N1P2P/PPQ2P2/2KR4 b - -
517
-250
767
false
{ "pvs": [ { "mate": [ null ], "cp": [ 517 ], "line": [ "h8g7 d1g1 e7g5 f4g5 d8g5 g1g5 h7g5 c2g6 g7h8 g6h6" ] } ], "knodes": [ 5171 ], "depth": [ 25 ] }
r2qk1nr/1bpp3p/p5R1/1p2PN1Q/1b6/1PN5/1PP2P1P/R1B1K3 b Qkq -
660
50
610
false
{ "pvs": [ { "mate": [ null, null, 10 ], "cp": [ 660, 840, null ], "line": [ "h7g6 h5g6 e8f8 g6g7 f8e8 g7h8 d7d5 h8g8 e8d7 e5e6", "b4c3 b2c3 h7g6 h5g6 e8f8 g6g7 f8e8 g7h8 b7d5 c1e3", "e8f8 g6g8 h8g8 c1h6 g8g7 h6g...
r4rk1/1bq1b1pp/1p2pP2/3p4/3PnR2/PN1B4/1BP1Q1PP/4R1K1 b - -
-178
100
-278
false
{ "pvs": [ { "mate": [ null, null ], "cp": [ -178, -74 ], "line": [ "c7f4 f6e7 f8e8 e1f1 f4g5 b2c1 g5e7 b3d2 e8f8 d2f3", "g7f6 f4h4 f6f5 h4h7 g8h7 d3e4 b7a6 e4d3 a6d3 e2d3" ] } ], "knodes": [ 3098 ], "depth": [ ...
6k1/1p6/4p2R/7P/6P1/4K3/8/r7 b - -
1
0
1
false
{ "pvs": [ { "mate": [ null ], "cp": [ 1 ], "line": [ "b7b5 h6g6 g8h7 g6g5 b5b4 e3f4 a1f1 f4g3 f1g1 g3h3" ] } ], "knodes": [ 4839 ], "depth": [ 30 ] }
rnbqkbnr/pp3ppp/4p3/3p2B1/3pP3/2N2N2/PPP2PPP/R2QKB1R b KQkq -
49
-100
149
false
{ "pvs": [ { "mate": [ null ], "cp": [ 49 ], "line": [ "f8e7 g5e7 g8e7 d1d4 e8h8 e1a1 b8c6 d4e3 d8a5 a2a3" ] }, { "mate": [ null, null, null ], "cp": [ 48, 57, 60 ], "l...
8/3p2pr/N2P3b/pP2pPpP/K3P1P1/3p3B/kPpP4/rbB3R1 b - -
10,000
-100
10,100
true
{ "pvs": [ { "mate": [ 5 ], "cp": [ null ], "line": [ "h7h8 g1g3 h8c8 g3d3 c8c4 a4a5 c4c3 d3c3 g7g6 a6b4" ] } ], "knodes": [ 3978 ], "depth": [ 99 ] }
1R6/2p2bk1/3bn2N/4p1P1/3pP2K/5P2/3B4/8 b - -
357
150
207
false
{ "pvs": [ { "mate": [ null ], "cp": [ 357 ], "line": [ "g7g6 h6f7 g6f7 h4h5 e6f8 b8a8 f7g7 a8a6 f8d7 a6a1" ] } ], "knodes": [ 2236 ], "depth": [ 21 ] }
r1bq1r2/pp3kpN/1nn1p3/3p4/1b1P1PQ1/2N5/PP4PP/R1B1K2R w KQ -
-130
-250
120
false
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ -130, -195, -232 ], "line": [ "g4h5 f7e7 h7f8 d8f8 a2a3 b4c3 b2c3 f8f5 h5h4 e7f7", "h7g5 f7e8 e1h1 f8h8 c1d2 b6c4 g5e6 c8e6 g4e6 c6e7", "h7f8 d8f8 c1e3 f7g8 g4e2...
1rr5/k4KP1/pp4Q1/8/8/8/PP6/8 b - -
-780
0
-780
false
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ -780, -2, 48 ], "line": [ "c8c7 f7f6 c7c6 f6f5 c6g6 f5g6 b6b5 g6h7 a7b6 g7g8n", "b8b7 f7f6 c8c6 f6f5 c6g6 f5g6 b7b8 g6f7 a7b7 g7g8q", "a6a5 g6e6 c8d8 f7g6 b8c8 e...
r1bqkbnr/ppp2ppp/2n5/4p3/4P3/2PP1N2/P2N1PPP/R1BQKB1R b KQkq -
47
0
47
false
{ "pvs": [ { "mate": [ null ], "cp": [ 47 ], "line": [ "g8f6 f1e2 f8c5 e1h1 e8h8 c1b2 f8e8 d1c2 a7a5 a2a4" ] }, { "mate": [ null, null ], "cp": [ 38, 55 ], "line": [ "g8f6 f1e2...
8/8/3k4/1B6/3BK3/8/8/8 w - -
10,000
700
9,300
false
{ "pvs": [ { "mate": [ 13 ], "cp": [ null ], "line": [ "b5c4 d6d7 e4e5 d7e7 d4c5 e7d7 c4b5 d7c7 e5e6 c7d8" ] } ], "knodes": [ 20949 ], "depth": [ 46 ] }
r1r2k2/1b3ppB/ppq1pb2/2ppB3/5P2/1P2P3/P1PPQ1PP/R4RK1 w - -
187
100
87
false
{ "pvs": [ { "mate": [ null ], "cp": [ 187 ], "line": [ "f1f3 c6b5 e2f2 f8e7 f3g3 c8h8 h7d3 c5c4 d3e2 h8h7" ] }, { "mate": [ null, null ], "cp": [ 182, 172 ], "line": [ "f1f3 f...
b7/5k2/8/3p3p/2p4P/2B1K1P1/8/8 w - -
0
-100
100
true
{ "pvs": [ { "mate": [ null ], "cp": [ 0 ], "line": [ "e3f4 f7e6 g3g4 h5g4 f4g4 a8c6 h4h5 c6e8 h5h6 e8g6" ] } ], "knodes": [ 2586 ], "depth": [ 38 ] }
rnbqkb1r/pp2pppp/3p1n2/8/4P3/4QN2/PPP2PPP/RNB1KB1R b KQkq -
9
0
9
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ 9, 12, 23, 25, 31 ], "line": [ "g7g6 f1e2 b8c6 c2c4 d8b6 b1c3 b6e3 c1e3 f8g7 e1h1", "b8c6 f1e2 g7g6 e1h1 f8g7 h2h3 e8h8 f1d1 ...
r3qrk1/p1p2ppp/2P2n2/8/1b4b1/2N5/PPPBBPPP/R2QK2R b KQ -
-241
200
-441
false
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ -241, -91, -7 ], "line": [ "a8d8 f2f3 b4c5 e1f1 g4f5 e2b5 a7a6 b5a6 c5e3 d2e3", "g4h5 f2f3 b4c5 c3a4 e8c6 a4c5 c6c5 b2b4 c5b6 a2a4", "b4c3 b2c3 a8d8 f2f3 f6d5 d1...
r1bq1rk1/ppp1nppp/1b2n3/1P1pP1N1/8/2PB4/P3QPPP/RNB2RK1 b - -
-50
0
-50
false
{ "pvs": [ { "mate": [ null ], "cp": [ -50 ], "line": [ "e7g6 g5e6 c8e6 a2a4 f8e8 a4a5 b6c5 b1d2 e6d7 d3g6" ] }, { "mate": [ null, null ], "cp": [ -39, -30 ], "line": [ "e7g6 g...
8/1K6/2P5/3k4/1P6/8/8/8 b - -
10,000
200
9,800
true
{ "pvs": [ { "mate": [ 10 ], "cp": [ null ], "line": [ "d5c4 c6c7 c4d4 b7c6 d4c4 b4b5 c4b3 c7c8q b3a3 b5b6" ] }, { "mate": [ 11, 11, 11, 11, 11 ], "cp": [ null, null, ...
br3r1k/5p1p/p2pp3/6q1/2p1P2P/P1N1QN2/1PP5/2K5 w - -
509
-850
1,359
false
{ "pvs": [ { "mate": [ null ], "cp": [ 509 ], "line": [ "h4g5 f7f5 g5g6 b8b7 e3d4 h8g8 d4d6 h7g6 d6e6 g8g7" ] } ], "knodes": [ 2051 ], "depth": [ 21 ] }
2kr1br1/1pp2p1p/p7/2pPq1p1/2P3N1/4pQ1P/PP2R1P1/R5K1 b - -
-105
-250
145
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ -105, -105, -66, -18, 0 ], "line": [ "e5f4 g4e3 f4f3 g2f3 g8g6 g1f2 d8e8 a1e1 e8e5 b2b3", "e5h8 a1f1 c8b8 f3f7 f8d6 f7f6 g8g7...
8/8/2pk2p1/7p/5R1P/P3pP2/1r1r4/5RK1 w - -
-723
-100
-623
false
{ "pvs": [ { "mate": [ null, null, -12 ], "cp": [ -723, -872, null ], "line": [ "f4f6 d6d5 f6g6 c6c5 g6g5 d5d4 g5g8 c5c4 f1e1 c4c3", "f1e1 d2g2 g1h1 g2h2 h1g1 b2g2 g1f1 e3e2 e1e2 g2e2", "f4d4 d2d4 f1e1 d4d2 f3f4 ...
rn1qk1nr/ppp2ppp/3pB3/2b1p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 b kq -
53
350
-297
false
{ "pvs": [ { "mate": [ null ], "cp": [ 53 ], "line": [ "f7e6 c2c3 c5b6 d2d4 e5d4 c3d4 g8f6 b1c3 e8h8 f3g5" ] }, { "mate": [ null, null, null ], "cp": [ 70, 418, 562 ], ...
r2r2k1/pp3pp1/2p1b2p/4P3/1P1R3P/4Q1P1/q3PPB1/5RK1 w q -
24
0
24
false
{ "pvs": [ { "mate": [ null ], "cp": [ 24 ], "line": [ "g2f3 d8d4 e3d4 a2c4 d4d6 a8e8 f1d1 c4c3 g1g2 a7a5" ] } ], "knodes": [ 8988 ], "depth": [ 28 ] }
r4rk1/pppqbp2/4bpnp/3P4/4N3/2N3PP/PPP3BK/R1BQ4 b - -
81
-200
281
false
{ "pvs": [ { "mate": [ null, null, null, null ], "cp": [ 81, 130, 201, 211 ], "line": [ "f6f5 e4f2 f5f4 h2h1 f4g3 d5e6 d7d1 f2d1 g8h7 c3d5", "e6f5 c1h6 f5e4 c3e4 f6f5 d1d4 f7f6 e4g5 e7c5 d4c5", "f...
8/5p2/8/4b2p/4k3/2P5/1P2NK2/8 w - -
0
-50
50
false
{ "pvs": [ { "mate": [ null ], "cp": [ 0 ], "line": [ "b2b4 h5h4 f2g2 e4e3 e2d4 e5d4 c3d4 f7f5 b4b5 f5f4" ] } ], "knodes": [ 12967 ], "depth": [ 42 ] }
8/8/8/8/2KQ4/8/2k5/8 b - -
10,000
900
9,100
true
{ "pvs": [ { "mate": [ 3, 2 ], "cp": [ null, null ], "line": [ "c2b1 c4c3 b1a2 d4f2 a2a1 f2b2", "c2c1 c4b3 c1b1 d4d1" ] } ], "knodes": [ 739 ], "depth": [ 99 ] }
r4rk1/pp1b1ppp/2n1p3/q1npP3/5P2/P1N2N2/1PPQ2PP/2KR1B1R w - -
31
0
31
false
{ "pvs": [ { "mate": [ null ], "cp": [ 31 ], "line": [ "c3d5 e6d5 d2a5 c6a5 b2b4 c5e6 d1d5 d7c6 d5a5 b7b6" ] }, { "mate": [ null, null, null, null, null ], "cp": [ 29, 20, ...
r2k4/1pp1qp2/1n6/pN1pP3/P2P2Q1/8/1PP2PPP/R3K2R w KQ -
1,138
800
338
false
{ "pvs": [ { "mate": [ null, null ], "cp": [ 1138, 1061 ], "line": [ "e1h1 c7c6 b5d6 d8c7 g4f4 f7f6 d6f7 c7b8 e5f6 e7c7", "g4g3 c7c6 b5d6 d8c7 e1h1 b6c4 f1e1 c7b6 g3b3 b6a7" ] } ], "knodes": [ 12860 ], "depth": [ ...
8/6k1/4b1p1/1pr1pp2/8/r2B1P2/2PK2P1/1R2R3 b - -
-86
-100
14
false
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ -86, -64, -57 ], "line": [ "e6d7 b1b4 g7f6 e1b1 a3a2 b4b2 a2b2 b1b2 g6g5 b2b4", "c5d5 b1b4 e6d7 e1b1 a3a2 d2e1 d5c5 b1b2 a2b2 b4b2", "e6a2 b1b4 a2c4 d3c4 b5c4 e1...
r1bqkb1r/1ppp1ppp/p1n1pn2/8/2PP1B2/4PN2/PP3PPP/RN1QKB1R b KQkq -
35
0
35
false
{ "pvs": [ { "mate": [ null ], "cp": [ 35 ], "line": [ "f8b4 b1d2 d7d6 f4g3 e6e5 d4d5 b4d2 f3d2 c6e7 e3e4" ] }, { "mate": [ null, null, null ], "cp": [ 44, 56, 63 ], "l...
rnbq1rk1/ppp1ppbp/6p1/8/2B5/2P2N2/P1PP1PPP/R1BQ1RK1 w - -
-2
0
-2
false
{ "pvs": [ { "mate": [ null ], "cp": [ -2 ], "line": [ "f1e1 c7c5 d2d4 b8c6 c1a3 c5d4 c3d4 c8g4 c2c3 d8a5" ] }, { "mate": [ null, null, null, null, null ], "cp": [ -6, -7, ...
r4rk1/p2nqppp/1p2p3/8/2PPQ3/5N2/PP3PPP/2RR2K1 b - -
165
100
65
true
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ 165, 166, 167, 170, 171 ], "line": [ "e7d6 h2h3 a8c8 e4e3 h7h6 a2a3 a7a5 a3a4 d6c6 b2b3", "f8d8 d4d5 d7c5 e4e3 a7a5 f3e5 e7d6...
rnbqkbnr/1p3ppp/p1p5/3p4/3P1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq -
26
0
26
true
{ "pvs": [ { "mate": [ null, null ], "cp": [ 26, 35 ], "line": [ "f8d6 f4d6 d8d6 d1b3 g8e7 e2e3 e8h8 f1d3 b8d7 a1c1", "c8f5 d1b3 b7b5 f3e5 g8e7 e2e4 f5e6 b3c2 g7g6 f1d3" ] }, { "mate": [ null, null, ...
8/1p1nkpp1/pq1p4/2r1pPQ1/4P1Pp/8/K1P3RP/3R1B2 b - -
0
350
-350
true
{ "pvs": [ { "mate": [ null, null ], "cp": [ 0, 0 ], "line": [ "e7e8 d1d3 c5a5 d3a3 a5a3 a2a3 b6b1 f1c4 b1a1 c4a2", "d7f6 d1d3 c5a5 d3a3 a5a3 a2a3 b6a5 a3b3 a5b6" ] }, { "mate": [ null, null, ...
7R/2k5/8/8/8/1R1K4/8/8 b - -
10,000
1,000
9,000
true
{ "pvs": [ { "mate": [ 5 ], "cp": [ null ], "line": [ "c7d6 h8h6 d6c7 b3b5 c7d7 b5b7 d7c8 b7g7 c8b8 h6h8" ] } ], "knodes": [ 61 ], "depth": [ 30 ] }
2rqk2r/pb2bppp/3p1n2/1P1Pp3/1P6/1QN2N1P/P2B1PP1/R4RK1 b k -
113
50
63
false
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ 113, 134, 142 ], "line": [ "e8h8 d2e3 d8d7 a2a4 b7a8 a1c1 e7d8 f3d2 h7h6 f1e1", "d8d7 f1c1 b7a8 a2a4 e8h8 a4a5 e7d8 d2e3 f6h5 b3d1", "b7a8 a2a4 e8h8 a4a5 d8c7 f1...
r2qkbnr/1p1n1pp1/4p2p/3pPb2/p2P4/5N2/PP1NBPPP/R1BQ1RK1 w kq -
33
0
33
false
{ "pvs": [ { "mate": [ null, null, null, null, null, null, null, null, null ], "cp": [ 33, 21, 21, 10, 10, 3, 3, 3, 3 ], "line": [ "...
8/8/6PK/8/7P/p7/k7/8 b - -
10,000
100
9,900
true
{ "pvs": [ { "mate": [ 25, 24, 22 ], "cp": [ null, null, null ], "line": [ "a2b2 g6g7 a3a2 g7g8q a2a1b h4h5 b2b1 g8g1 b1b2 g1a1", "a2a1 g6g7 a3a2 g7g8q a1b2 g8g1 a2a1b h6g6 b2a2 g1a1", "a2b1 g6g7 a3a2 g7g8q a2a1q...
8/5k2/1pp5/3rK2P/P6R/1P6/8/8 w - -
387
100
287
true
{ "pvs": [ { "mate": [ null ], "cp": [ 387 ], "line": [ "e5e4 f7f8 h5h6 f8g8 h6h7 g8h8 h4h6 d5c5 e4d3 c5c1" ] } ], "knodes": [ 10173 ], "depth": [ 25 ] }
r1b2rk1/2q1ppb1/pnpp1np1/1p4Np/3PP1PP/2NBBP2/PPPQ4/1K1R3R b - -
63
0
63
false
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ 63, 73, 92 ], "line": [ "c6c5 d4c5 d6c5 e3f4 e7e5 f4e3 c8b7 d2f2 a8c8 g4h5", "b6c4 d3c4 b5c4 d1g1 a8b8 b1a1 c7b7 d2c1 a6a5 g4h5", "a8b8 d2h2 b6c4 e3c1 c4a3 b2a3 ...
8/1Q2k3/8/8/2BK4/8/8/8 b - -
10,000
1,250
8,750
true
{ "pvs": [ { "mate": [ 4 ], "cp": [ null ], "line": [ "e7f6 b7f7 f6g5 c4e2 g5h6 d4e5 h6g5 f7h5" ] } ], "knodes": [ 16784 ], "depth": [ 99 ] }
8/5b2/7k/8/p3P3/P1K5/7P/3q4 b - -
-10,000
-1,050
-8,950
false
{ "pvs": [ { "mate": [ -7 ], "cp": [ null ], "line": [ "d1c1 c3d4" ] } ], "knodes": [ 1 ], "depth": [ 1 ] }
R7/8/4b2P/1k2P3/8/2p4r/6K1/8 w - -
-864
-250
-614
false
{ "pvs": [ { "mate": [ null ], "cp": [ -864 ], "line": [ "a8a1 b5c4 a1c1 h3h6 g2f3 h6h3 f3e4 c4c5 c1c2 e6d5" ] } ], "knodes": [ 13056 ], "depth": [ 17 ] }
r1bqkbnr/pp3ppp/2n1p3/2PpP3/8/2N2N2/PPP2PPP/R1BQKB1R b KQkq -
19
100
-81
false
{ "pvs": [ { "mate": [ null ], "cp": [ 19 ], "line": [ "f8c5 f1d3 a7a6 c1f4 g8e7 e1h1 c8d7 d1d2 c6b4 a2a3" ] }, { "mate": [ null, null, null, null, null ], "cp": [ 16, 66, ...
r2qr1k1/ppp2pp1/5n1p/2b3B1/3n2b1/2NP1NP1/PPP1P1BP/R2Q1R1K w - -
91
100
-9
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ 91, 40, 14, 11, -8 ], "line": [ "g5f6 d8f6 f3d4 f6d4 g2d5 g4e6 d5e6 e8e6 e2e4 c5b6", "g5f4 f6h5 c3e4 g4f3 g2f3 h5f4 g3f4 c5b6...
rn1qk2r/pbppb1pp/1p2pn2/5p2/3P1B2/2N1PN2/PPP1BPPP/R2Q1RK1 b kq -
17
0
17
false
{ "pvs": [ { "mate": [ null ], "cp": [ 17 ], "line": [ "e8h8 a2a3 h7h6 h2h3 d7d6 e2c4 d8d7 f4h2 a7a6 d4d5" ] }, { "mate": [ null, null, null ], "cp": [ 14, 20, 35 ], "l...
8/5pk1/6p1/6P1/5P2/4R1K1/8/3r4 w - -
0
0
0
true
{ "pvs": [ { "mate": [ null ], "cp": [ 0 ], "line": [ "e3e5 d1f1 e5a5 f1e1 f4f5 e1g1 g3h4 g6f5 a5f5 g7g6" ] } ], "knodes": [ 8664 ], "depth": [ 51 ] }
r1b1kb1r/pp3ppp/n3p3/3p4/8/1P2BNP1/1PP1PPBP/R3K2R b KQkq -
42
0
42
false
{ "pvs": [ { "mate": [ null ], "cp": [ 42 ], "line": [ "f8c5 e3c5 a6c5 b3b4 c5e4 f3d2 e4d6 e2e4 d6e4 d2e4" ] }, { "mate": [ null, null, null, null, null ], "cp": [ 46, 56, ...
2r2rk1/pp1bb1pp/1q2ppn1/3pP3/3N4/2BP1NQ1/PP3PPP/R3R1K1 w - -
-62
-50
-12
false
{ "pvs": [ { "mate": [ null, null, null ], "cp": [ -62, -71, -91 ], "line": [ "h2h3 f6e5 f3e5 g6e5 e1e5 e7d6 a1e1 f8f6 g3h4 c8f8", "a2a4 f6e5 f3e5 g6e5 g3e5 e7d6 e5h5 c8e8 e1e5 d6e5", "d4b3 f6e5 c3e5 g6e5 f3e5 d7...
8/1bP5/4K3/p7/P2k4/8/8/8 b - -
-10,000
-250
-9,750
false
{ "pvs": [ { "mate": [ -21 ], "cp": [ null ], "line": [ "d4c4 e6e5 c4b4 e5d4 b4a4 d4c4 a4a3 c4c3 a3a2 c3c2" ] } ], "knodes": [ 15774 ], "depth": [ 50 ] }
8/6R1/3kpn2/7p/4p3/P3NnP1/5PKP/4rB2 w - -
0
150
-150
false
{ "pvs": [ { "mate": [ null ], "cp": [ 0 ], "line": [ "e3c4 d6c5 g7g6 f6d5 g6e6 f3h4 g2h3 h4f3 h3g2" ] } ], "knodes": [ 4251 ], "depth": [ 35 ] }
4r1k1/p1Pn1ppp/8/2p1r3/P1p1R3/2P5/2P2KPP/8 b - -
-1,349
-800
-549
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ -1349, -829, -829, -812, -802 ], "line": [ "e5e4 f2g3 e4e3 g3h4 h7h6 g2g3 d7f6 h4h3 e3c3 h3g2", "e8c8 e4e5 d7e5 f2e2 c8c7 e2e...
1R2N3/4bpkp/4p3/2p5/2P2P2/6P1/2r4P/6K1 b - -
-7
-50
43
true
{ "pvs": [ { "mate": [ null ], "cp": [ -7 ], "line": [ "g7g6 b8b7 e7f8 h2h4 c2c4 h4h5 g6h5 b7f7 f8h6 g1f2" ] } ], "knodes": [ 901 ], "depth": [ 29 ] }
8/8/7k/3B1K2/8/2B5/8/8 b - -
10,000
700
9,300
true
{ "pvs": [ { "mate": [ 8, 6 ], "cp": [ null, null ], "line": [ "h6h5 c3e1 h5h6 f5f6 h6h5 d5f3 h5h6 e1d2 h6h7 f6f7", "h6h7 f5f6 h7h6 d5f3 h6h7 f6f7 h7h6 c3d2 h6h7 f3e4" ] } ], "knodes": [ 11943 ], "depth": [ 67 ...
8/8/4B3/8/3N4/2K5/8/k7 w - -
10,000
650
9,350
false
{ "pvs": [ { "mate": [ 22 ], "cp": [ null ], "line": [ "e6f5 a1a2 d4b3 a2a3 f5b1 a3a4 b3d4 a4a5 c3c4 a5b6" ] }, { "mate": [ 22, 23, 23 ], "cp": [ null, null, null ], "l...
8/8/8/5K2/8/5Q2/3k4/3n4 w - -
10,000
600
9,400
false
{ "pvs": [ { "mate": [ 12 ], "cp": [ null ], "line": [ "f5e4 d1c3 e4d4 c3e2 d4c4 e2c1 f3f4 d2e2 f4c1 e2f3" ] } ], "knodes": [ 309 ], "depth": [ 20 ] }
r4rk1/1ppbqppn/p1np3p/8/P1BPPB2/R4N2/1PPQ2PP/5RK1 b - -
112
50
62
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ 112, 124, 128, 131, 132 ], "line": [ "e7e4 f1e1 e4g6 d4d5 c6a7 a3b3 b7b5 c4d3 g6h5 b3c3", "a8e8 e4e5 d6e5 f3e5 c6e5 f4e5 d7e6...
6r1/3q2pk/p1Rb2n1/1p1p3p/6N1/4Q2P/1B3PP1/6K1 w - -
358
-200
558
false
{ "pvs": [ { "mate": [ null, null, null, null, null ], "cp": [ 358, 110, -219, -238, -239 ], "line": [ "e3h6 g7h6 g4f6 h7g7 f6d7 g7f7 c6d6 a6a5 d7c5 g8c8", "e3g5 g6f4 b2g7 d7g7 g4f6 h7h8 g...
r2qr3/ppp3p1/3Pb3/4kpB1/P1Bp4/3P4/1PPK1nPQ/R6R b - -
10,000
50
9,950
true
{ "pvs": [ { "mate": [ 1 ], "cp": [ null ], "line": [ "f5f4 h2f4" ] } ], "knodes": [ 1 ], "depth": [ 99 ] }
3r1rk1/pB2bppp/1p2p3/4nq2/3P4/1P4P1/PB2QP1P/R4RK1 b - -
32
50
-18
false
{ "pvs": [ { "mate": [ null ], "cp": [ 32 ], "line": [ "e5g4 b7f3 g4f6 a1c1 f6d5 h2h4 g7g6 g1h2 h7h5 f3e4" ] }, { "mate": [ null, null, null, null, null ], "cp": [ 24, 41, ...
8/8/5Q2/3k4/8/4K3/8/5R2 w - -
10,000
1,400
8,600
false
{ "pvs": [ { "mate": [ 3 ], "cp": [ null ], "line": [ "f6b6 d5e5 f1f6 e5d5 b6d4" ] } ], "knodes": [ 1452 ], "depth": [ 20 ] }
8/8/3KN3/3B4/P7/5Q2/1k6/8 w - -
10,000
1,650
8,350
false
{ "pvs": [ { "mate": [ 8 ], "cp": [ null ], "line": [ "f3b3 b2c1" ] } ], "knodes": [ 0 ], "depth": [ 1 ] }
k7/8/2R5/2R5/8/4K3/8/8 w - -
10,000
1,000
9,000
false
{ "pvs": [ { "mate": [ 3 ], "cp": [ null ], "line": [ "c5b5 a8a7 c6b6 a7a8 b5a5" ] } ], "knodes": [ 72 ], "depth": [ 99 ] }