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Two small simplifications

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Passed simplification STC
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 206368 W: 52592 L: 52560 D: 101216
Ptnml(0-2): 537, 24201, 53669, 24247, 530
https://tests.stockfishchess.org/tests/view/6a2c5ab00d5d4b19d0805326

Passed simplification LTC
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 109944 W: 27839 L: 27709 D: 54396
Ptnml(0-2): 61, 11938, 30844, 12068, 61
https://tests.stockfishchess.org/tests/view/6a2dc6e70d5d4b19d08053aa

closes https://github.com/official-stockfish/Stockfish/pull/6913

Bench: 2767133
This commit is contained in:
Daniel Monroe
2026-06-25 13:10:08 +02:00
committed by Joost VandeVondele
parent 782852b26a
commit 3c858c19e6
1 changed files with 2 additions and 2 deletions
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src/search.cpp
+2 -2
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@@ -323,7 +323,7 @@ bool Search::Worker::iterative_deepening() {
for (Color c : {WHITE, BLACK}) for (Color c : {WHITE, BLACK})
for (int i = 0; i < UINT_16_HISTORY_SIZE; i++) for (int i = 0; i < UINT_16_HISTORY_SIZE; i++)
mainHistory[c][i] = (mainHistory[c][i] + 5) * 789 / 1024; mainHistory[c][i] = mainHistory[c][i] * 789 / 1024;
// Iterative deepening loop until requested to stop or the target depth is reached // Iterative deepening loop until requested to stop or the target depth is reached
while (rootDepth + 1 < MAX_PLY && !threads.stop while (rootDepth + 1 < MAX_PLY && !threads.stop
@@ -1310,7 +1310,7 @@ moves_loop: // When in check, search starts here
// For first picked move (ttMove) reduce reduction // For first picked move (ttMove) reduce reduction
else if (move == ttData.move) else if (move == ttData.move)
r = std::max(-10, r - 2016 + 150 * cutNode); r = std::max(0, r - 2016);
if (capture) if (capture)
ss->statScore = 809 * int(PieceValue[pos.captured_piece()]) / 128 ss->statScore = 809 * int(PieceValue[pos.captured_piece()]) / 128