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Simplify Fail-Low Bonus

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Passed Non-regression STC:
LLR: 2.92 (-2.94,2.94) <-1.75,0.25>
Total: 66592 W: 17426 L: 17239 D: 31927
Ptnml(0-2): 208, 7812, 17109, 7919, 248
https://tests.stockfishchess.org/tests/view/6774e1711a2f267f20548b22

Passed Non-regression LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 179616 W: 45764 L: 45706 D: 88146
Ptnml(0-2): 125, 19665, 50162, 19739, 117
https://tests.stockfishchess.org/tests/view/677590531a2f267f20548b82

closes https://github.com/official-stockfish/Stockfish/pull/5751

Bench: 1310158
This commit is contained in:
Shawn Xu
2024-12-31 21:14:16 -08:00
committed by Disservin
parent 5370c3035e
commit 403a5e100b
1 changed files with 0 additions and 4 deletions
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4
src/search.cpp
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@@ -1408,10 +1408,6 @@ moves_loop: // When in check, search starts here
<< stat_bonus(depth) * 2;
}
// Bonus when search fails low and there is a TT move
else if (ttData.move && !allNode)
thisThread->mainHistory[us][ttData.move.from_to()] << stat_bonus(depth) * 287 / 1024;
if (PvNode)
bestValue = std::min(bestValue, maxValue);