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Simplify ttcut depth condition

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Simplify ttcut depth condition in a recent tweak of Nonlinear (PR #5876)

Passed simplification STC
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 235328 W: 61646 L: 61644 D: 112038
Ptnml(0-2): 1039, 27947, 59676, 27977, 1025
https://tests.stockfishchess.org/tests/view/67abc7fba04df5eb8dbeb442

Passed simplification LTC
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 63744 W: 16306 L: 16128 D: 31310
Ptnml(0-2): 58, 6918, 17748, 7084, 64
https://tests.stockfishchess.org/tests/view/67abd776a04df5eb8dbeb9c1

closes https://github.com/official-stockfish/Stockfish/pull/5877

Bench: 2667779
This commit is contained in:
Daniel Monroe
2025-02-12 15:01:35 -08:00
committed by Disservin
parent e9997afb1c
commit 76c319f438
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@@ -671,7 +671,7 @@ Value Search::Worker::search(
if (!PvNode && !excludedMove && ttData.depth > depth - (ttData.value <= beta) if (!PvNode && !excludedMove && ttData.depth > depth - (ttData.value <= beta)
&& is_valid(ttData.value) // Can happen when !ttHit or when access race in probe() && is_valid(ttData.value) // Can happen when !ttHit or when access race in probe()
&& (ttData.bound & (ttData.value >= beta ? BOUND_LOWER : BOUND_UPPER)) && (ttData.bound & (ttData.value >= beta ? BOUND_LOWER : BOUND_UPPER))
&& (cutNode == (ttData.value >= beta) || (depth > 9 || (rootDepth > 10 && depth > 5)))) && (cutNode == (ttData.value >= beta) || depth > 5))
{ {
// If ttMove is quiet, update move sorting heuristics on TT hit // If ttMove is quiet, update move sorting heuristics on TT hit
if (ttData.move && ttData.value >= beta) if (ttData.move && ttData.value >= beta)