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Simplify Double Margin Formula

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Passed STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 267296 W: 69214 L: 69248 D: 128834
Ptnml(0-2): 760, 31511, 69141, 31475, 761
https://tests.stockfishchess.org/tests/view/682f5d9a6ec7634154f9b01e

Passed LTC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 67872 W: 17460 L: 17289 D: 33123
Ptnml(0-2): 25, 7238, 19243, 7401, 29
https://tests.stockfishchess.org/tests/view/6833074b6ec7634154f9b5ae

Passed VLTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 118000 W: 30337 L: 30222 D: 57441
Ptnml(0-2): 15, 11783, 35289, 11898, 15
https://tests.stockfishchess.org/tests/view/683336c56ec7634154f9ba46

closes https://github.com/official-stockfish/Stockfish/pull/6097

Bench: 2312696
This commit is contained in:
FauziAkram
2025-05-25 18:33:04 +03:00
committed by Joost VandeVondele
parent e3adfaf8fc
commit 73c55e8949
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@@ -1147,7 +1147,7 @@ moves_loop: // When in check, search starts here
int corrValAdj2 = std::abs(correctionValue) / 249757;
int doubleMargin = -4 + 244 * PvNode - 206 * !ttCapture - corrValAdj1
- 997 * ttMoveHistory / 131072
- (ss->ply * 2 > thisThread->rootDepth * 3) * 47;
- (ss->ply > thisThread->rootDepth) * 47;
int tripleMargin = 84 + 269 * PvNode - 253 * !ttCapture + 91 * ss->ttPv
- corrValAdj2 - (ss->ply * 2 > thisThread->rootDepth * 3) * 54;