Mayhem is Sapeli written in C++14 + SF NNUE evaluation. Thanks to Maksim simplifying off DirtyPiece/etc crap!
Release: https://github.com/SamuraiDangyo/mayhem ... /tag/v0.42
Contains a fast Linux binary.
At least +350 Elo stronger than Sapeli 1.92. This proves that handcrafted evaluations are all crap.
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5s
Score of Mayhem 0.42 NNUE vs Sapeli 1.92: 64 - 5 - 9 [0.878] 78
Elo difference: 343.19 +/- 109.68
Finished match
Score of Mayhem NNUE 0.42 vs Sapeli 1.92: 75 - 13 - 12 [0.810] 100
Elo difference: 251.89 +/- 80.80
Finished match
20s
Score of Mayhem NNUE 0.42 vs Sapeli 1.92: 7 - 1 - 2 [0.800] 10
Elo difference: 240.82 +/- nan
Finished match
Mayhem NNUE nice analysis. Look how consistend 1. d4 is!
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info depth 1 nodes 40 time 1 nps 20000 score cp 69 pv d2d4
info depth 2 nodes 269 time 4 nps 53800 score cp 24 pv d2d4
info depth 3 nodes 1552 time 22 nps 67478 score cp 45 pv d2d4
info depth 4 nodes 5933 time 46 nps 126234 score cp 34 pv d2d4
info depth 5 nodes 18196 time 78 nps 230329 score cp 60 pv d2d4
info depth 6 nodes 66327 time 157 nps 419791 score cp 39 pv d2d4
info depth 7 nodes 156246 time 288 nps 540643 score cp 46 pv d2d4
info depth 8 nodes 648186 time 836 nps 774415 score cp 32 pv d2d4
info depth 9 nodes 1803245 time 1892 nps 952585 score cp 51 pv d2d4
info depth 10 nodes 8442083 time 7493 nps 1126512 score cp 32 pv d2d4
info depth 11 nodes 27943335 time 26254 nps 1064305 score cp 46 pv d2d4