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Simplify beta formula

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Passed STC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 152384 W: 39907 L: 39814 D: 72663
Ptnml(0-2): 557, 17958, 39053, 18083, 541
https://tests.stockfishchess.org/tests/view/6890b66692fcad741b804a10

Passed LTC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 98688 W: 25411 L: 25270 D: 48007
Ptnml(0-2): 45, 10692, 27743, 10805, 59
https://tests.stockfishchess.org/tests/view/6896019c618946ab878347b0

closes: https://github.com/official-stockfish/Stockfish/pull/6220

bench: 3002300
This commit is contained in:
FauziAkram
2025-08-16 11:57:44 +02:00
committed by Joost VandeVondele
parent 2e91a86354
commit d864148595
1 changed files with 1 additions and 1 deletions
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src/search.cpp
+1 -1
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@@ -369,7 +369,7 @@ void Search::Worker::iterative_deepening() {
// otherwise exit the loop.
if (bestValue <= alpha)
{
beta = (3 * alpha + beta) / 4;
beta = alpha;
alpha = std::max(bestValue - delta, -VALUE_INFINITE);
failedHighCnt = 0;