Chess engine: Stockfish 21042513

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Chess engine: Stockfish 21042513

Stockfish - UCI chess engine, compiled by Stefan Geschwentner
Rating JCER=3157

Timestamp: 1619349717

Thread based reduction tweak.

For PV nodes at the first two plies no reductions are done for each fourth thread.

STC (8 threads):

LLR: 2.94 (-2.94,2.94) <-0.50,2.50>

Total: 53992 W: 3334 L: 3167 D: 47491 Elo +1.07

Ptnml(0-2): 64, 2713, 21285, 2860, 74

https://tests.stockfishchess.org/tests/view/6083b2d695e7f1852abd277a

LTC (8 threads):

LLR: 2.93 (-2.94,2.94) <0.50,3.50>

Total: 64888 W: 1888 L: 1725 D: 61275 Elo +0.87

Ptnml(0-2): 14, 1556, 29146, 1709, 19

https://tests.stockfishchess.org/tests/view/6084249595e7f1852abd2795

No functional change (for one thread)

Stockfish 21042513 and NNUE download

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