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Late countermove bonus: remove "extraBonus &&"

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passed stc: https://tests.stockfishchess.org/tests/view/63a71e409c0589b83751dc25
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 432480 W: 113846 L: 114055 D: 204579
Ptnml(0-2): 1164, 48205, 117701, 48016, 1154

passed ltc: https://tests.stockfishchess.org/tests/view/63aba66639af998100ce1aa9
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 245344 W: 65309 L: 65317 D: 114718
Ptnml(0-2): 117, 24257, 73903, 24307, 88

closes https://github.com/official-stockfish/Stockfish/pull/4322

bench 4379218
This commit is contained in:
Dubslow 2022-12-24 09:43:22 -06:00 • committed by Joost VandeVondele
parent 9fe9ff0082
commit ea0f34120f
1 changed files with 3 additions and 8 deletions
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11
src/search.cpp
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@ -1359,14 +1359,9 @@ moves_loop: // When in check, search starts here
else if ( (depth >= 5 || PvNode || bestValue < alpha - 65 * depth)
&& !priorCapture)
{
//Assign extra bonus if current node is PvNode or cutNode
//or fail low was really bad
bool extraBonus = PvNode
|| cutNode;
bool doubleExtraBonus = extraBonus && bestValue < alpha - 88 * depth;
update_continuation_histories(ss-1, pos.piece_on(prevSq), prevSq, stat_bonus(depth) * (1 + extraBonus + doubleExtraBonus));
// Extra bonuses for PV/Cut nodes or bad fail lows
int bonus = 1 + (PvNode || cutNode) + (bestValue < alpha - 88 * depth);
update_continuation_histories(ss-1, pos.piece_on(prevSq), prevSq, stat_bonus(depth) * bonus);
}
if (PvNode)