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Chess engine: Stockfish 21112814 NNUE (Windows and Linux)

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Stockfish - UCI chess engine, compiled by Michael Chaly
Rating CEDR=3375 (1 place)

Timestamp: 1638105906
Refine futility pruning for parent nodes

This patch is a result of refining of tuning vondele did after new net passed and some hand-made values adjustements - excluding changes in other pruning heuristics and rounding value of history divisor to the nearest power of 2.

With this patch futility pruning becomes more aggressive and history influence on it is doubled again.

passed STC
https://tests.stockfishchess.org/tests/view/61a2c4c1a26505c2278c150d
LLR: 2.94 (-2.94,2.94) <0.00,2.50>
Total: 33848 W: 8841 L: 8574 D: 16433 Elo +2.74 💪
Ptnml(0-2): 100, 3745, 8988, 3970, 121

passed LTC
https://tests.stockfishchess.org/tests/view/61a327ffa26505c2278c26d9
LLR: 2.94 (-2.94,2.94) <0.50,3.00>
Total: 22272 W: 5856 L: 5614 D: 10802 Elo +3.78 💪
Ptnml(0-2): 12, 2230, 6412, 2468, 14
bench 6302543

Stockfish 21112814 NNUE download

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