Chess engine: Lizard 10.1 NNUE
Lizard - UCI chess engine and NNUE
v.10.1:
Fixes some fairly egregious mistakes while searching, and has some all-around performance increases.
For the sake of my sanity (and because .NET can't/doesn't autovectorize NNUE code), this requires AVX2.
Use the Lizard-win-x64-pext.exe binary if you have a modern processor.
If you don't have PEXT, or have an AMD processor older than Zen 3, you should probably use the non-pext Lizard-win-x64.exe binary. It might be worth trying both though because of how different processors handle PEXT.
10+0.1:
Score of Lizard 10.1 vs Lizard 10.0: 699 - 312 - 989 [0.597] 2000
... Lizard 10.1 playing White: 608 - 18 - 374 [0.795] 1000
... Lizard 10.1 playing Black: 91 - 294 - 615 [0.399] 1000
... White vs Black: 902 - 109 - 989 [0.698] 2000
Elo difference: 68.1 +/- 10.8, LOS: 100.0 %, DrawRatio: 49.5 %
60+0.6:
Score of Lizard 10.1 vs Lizard 10.0: 211 - 90 - 324 [0.597] 625
... Lizard 10.1 playing White: 194 - 2 - 118 [0.806] 314
... Lizard 10.1 playing Black: 17 - 88 - 206 [0.386] 311
... White vs Black: 282 - 19 - 324 [0.710] 625
Elo difference: 68.1 +/- 18.9, LOS: 100.0 %, DrawRatio: 51.8 %
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