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Koivisto v2.0
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@Luecx Luecx released this 08 Sep 20:19
· 983 commits to master since this release
v2.0
b508e58

Patch news:

  • added SMP which scales very good even beyond 8 threads but its currently artificially limited to 32 threads
  • greatly improved speed all over the engine
  • greatly improved evaluation
  • fixed UCI bugs
  • fixed compiler warnings

Tests have shown the following results against Koivisto 1.0:

(120s+1s on ryzen 3950x)
Score of Koivisto Dev vs Koivisto 1.0: 143 - 59 - 167 [0.614]
...      Koivisto Dev playing White: 84 - 28 - 72  [0.652] 184
...      Koivisto Dev playing Black: 59 - 31 - 95  [0.576] 185
...      White vs Black: 115 - 87 - 167  [0.538] 369
Elo difference: 80.5 +/- 26.3, LOS: 100.0 %, DrawRatio: 45.3 %

Furthermore, 4 Threads also seem to gain about 70 Elo in self-play to the strength of the engine.

Assets 2