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simplying hybrid condition

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STC https://tests.stockfishchess.org/tests/view/5f3059d1908167206653736b:
LLR: 2.94 (-2.94,2.94) {-1.50,0.50}
Total: 12520 W: 766 L: 727 D: 11027
Ptnml(0-2): 13, 624, 4949, 659, 15

LTC: https://tests.stockfishchess.org/tests/view/5f30863a90816720665373d1
LLR: 2.94 (-2.94,2.94) {-1.50,0.50}
Total: 12520 W: 766 L: 727 D: 11027
Ptnml(0-2): 13, 624, 4949, 659, 15

closes: https://github.com/official-stockfish/Stockfish/pull/2965

Bench: 4084753
This commit is contained in:
jjoshua2 2020-08-09 16:16:04 -04:00 • committed by Joost VandeVondele
parent bcdf41dadc
commit a54f9011c3
1 changed files with 2 additions and 2 deletions
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4
src/evaluate.cpp
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@ -114,7 +114,7 @@ namespace {
constexpr Value LazyThreshold1 = Value(1400);
constexpr Value LazyThreshold2 = Value(1300);
constexpr Value SpaceThreshold = Value(12222);
constexpr Value NNUEThreshold = Value(460);
constexpr Value NNUEThreshold = Value(575);
// KingAttackWeights[PieceType] contains king attack weights by piece type
constexpr int KingAttackWeights[PIECE_TYPE_NB] = { 0, 0, 81, 52, 44, 10 };
@ -945,7 +945,7 @@ Value Eval::evaluate(const Position& pos) {
{
Value v = eg_value(pos.psq_score());
// Take NNUE eval only on balanced positions
if (abs(v) < NNUEThreshold + 20 * pos.count<PAWN>())
if (abs(v) < NNUEThreshold)
return NNUE::evaluate(pos) + Tempo;
}
return Evaluation<NO_TRACE>(pos).value();