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Chess engine: Caissa 1.13.1

on


Caissa - UCI chess engine,  Author: Michał Witanowski
Rating CEDR=3557

v.1.13.1:
Hotfix for a bug with EvalFile option causing no net to be used

v.1.13.0:
Changes
New neural net trained on 3.5B positions
Use threats in history heuristics (based on Berserk)
Average base score used for aspiration windows
Embed neural network in executable
Switch from MSVC to GCC compiler for Windows release
Elo gain
Book=UHO_4060_v2, TC=40+0.4

Score of Caissa 1.13 AVX2 vs Caissa 1.12 AVX2: 459 - 325 - 877  [0.540] 1661
...      Caissa 1.13 AVX2 playing White: 450 - 6 - 376  [0.767] 832
...      Caissa 1.13 AVX2 playing Black: 9 - 319 - 501  [0.313] 829
...      White vs Black: 769 - 15 - 877  [0.727] 1661
Elo difference: 28.1 +/- 11.5, LOS: 100.0 %, DrawRatio: 52.8 %
Book=DFRC, TC=8+0.08

Score of Caissa 1.13 AVX2 vs Caissa 1.12 AVX2: 326 - 231 - 773  [0.536] 1330
...      Caissa 1.13 AVX2 playing White: 229 - 64 - 372  [0.624] 665
...      Caissa 1.13 AVX2 playing Black: 97 - 167 - 401  [0.447] 665
...      White vs Black: 396 - 161 - 773  [0.588] 1330
Elo difference: 24.9 +/- 12.1, LOS: 100.0 %, DrawRatio: 58.1 %
Book=UHO_4060_v2, TC=8+0.08

Score of Caissa 1.13 AVX2 vs Caissa 1.12 AVX2: 555 - 436 - 1121  [0.528] 2112
...      Caissa 1.13 AVX2 playing White: 530 - 22 - 506  [0.740] 1058
...      Caissa 1.13 AVX2 playing Black: 25 - 414 - 615  [0.315] 1054
...      White vs Black: 944 - 47 - 1121  [0.712] 2112
Elo difference: 19.6 +/- 10.1, LOS: 100.0 %, DrawRatio: 53.1 %


Caissa rating progress:
Pl Engine Rating Score Games %
568 Caissa 1.10 3557.7 180.00 326 55.21
570 Caissa 1.11 3553.2 241.50 376 64.23
582 Caissa 1.8 3524.2 506.00 902 56.10
602 Caissa 1.7 3497.4 221.50 354 62.57
606 Caissa 1.9 3490.9 80.00 182 43.96
644 Caissa 1.6.3 3437.3 196.00 449 43.65
658 Caissa 1.5 3410.0 249.50 573 43.54
659 Caissa 0.5 3407.0 159.50 260 61.35
660 Caissa 1.4 3405.8 535.00 1279 41.83
672 Caissa 1.1 3388.2 91.50 175 52.29
674 Caissa 1.2 3382.5 76.50 182 42.03
679 Caissa 1.3 3377.0 237.50 667 35.61
694 Caissa 1.6 3350.7 63.50 179 35.47
717 Caissa 1.0 3315.1 27.00 90 30.00
739 Caissa 0.8.0 3281.6 64.00 135 47.41
742 Caissa 0.7.0 3280.8 25.00 60 41.67
746 Caissa 0.9.0 3275.2 124.50 194 64.18




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