Remove a multiplier when blending nnue complexity with semi-classical complexity.
Passed non-regression STC:
https://tests.stockfishchess.org/tests/view/
6473a71dd29264e4cfa75839
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 124768 W: 33180 L: 33060 D: 58528
Ptnml(0-2): 314, 13797, 34030, 13941, 302
Passed non-regression LTC:
https://tests.stockfishchess.org/tests/view/
6474af3dd29264e4cfa768f4
LLR: 2.96 (-2.94,2.94) <-1.75,0.25>
Total: 108180 W: 29008 L: 28884 D: 50288
Ptnml(0-2): 29, 10420, 33075, 10530, 36
closes https://github.com/official-stockfish/Stockfish/pull/4592
bench
2316827
Value nnue = NNUE::evaluate(pos, true, &nnueComplexity);
// Blend nnue complexity with (semi)classical complexity
- nnueComplexity = ( 397 * nnueComplexity
- + 477 * abs(psq - nnue)
- ) / 1024;
+ nnueComplexity = 25 * (nnueComplexity + abs(psq - nnue)) / 64;
optimism += optimism * nnueComplexity / 256;
v = (nnue * (945 + npm) + optimism * (174 + npm)) / 1024;