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Simplify evaluation constants

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Passed STC (<0, 2> by accident):
LLR: 2.95 (-2.94,2.94) <0.00,2.00>
Total: 346016 W: 89529 L: 88756 D: 167731
Ptnml(0-2): 1012, 41074, 88027, 41919, 976
https://tests.stockfishchess.org/tests/view/6659d6ecf426908fcc6b6929

Passed LTC:
LLR: 2.96 (-2.94,2.94) <-1.75,0.25>
Total: 89862 W: 22887 L: 22734 D: 44241
Ptnml(0-2): 45, 9999, 24694, 10144, 49
https://tests.stockfishchess.org/tests/view/665a6ebb062b2c3cf814fde8

Passed LTC (Rebased):
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 325500 W: 82734 L: 82826 D: 159940
Ptnml(0-2): 193, 36409, 89665, 36263, 220
https://tests.stockfishchess.org/tests/view/665bd39f44e8416a9cdc1909

closes https://github.com/official-stockfish/Stockfish/pull/5361

Bench 961982
This commit is contained in:
cj5716 2024-05-31 21:55:39 +08:00 • committed by Joost VandeVondele
parent fb18caae7a
commit 5688b188cc
1 changed files with 2 additions and 4 deletions
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6
src/evaluate.cpp
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@ -83,10 +83,8 @@ Value Eval::evaluate(const Eval::NNUE::Networks& networks,
optimism += optimism * nnueComplexity / 470;
nnue -= nnue * nnueComplexity / 20000;
int material = 300 * pos.count<PAWN>() + 350 * pos.count<KNIGHT>() + 400 * pos.count<BISHOP>()
+ 640 * pos.count<ROOK>() + 1200 * pos.count<QUEEN>();
v = (nnue * (34300 + material) + optimism * (4400 + material)) / 36672;
int material = 600 * pos.count<PAWN>() + pos.non_pawn_material();
v = (nnue * (68600 + material) + optimism * (8800 + material)) / 73344;
// Damp down the evaluation linearly when shuffling
v -= v * pos.rule50_count() / 212;