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Omit two unneeded tests

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These redundant tests were intended as a speed-up, but they do not seem
to provide any speed anymore.

STC: https://tests.stockfishchess.org/tests/view/64e9079c85e3e95030fd8259
LLR: 2.96 (-2.94,2.94) <-1.75,0.25>
Total: 134688 W: 34338 L: 34226 D: 66124
Ptnml(0-2): 426, 15122, 36124, 15258, 414

closes https://github.com/official-stockfish/Stockfish/pull/4767

No functional change
This commit is contained in:
ttruscott 2023-08-25 15:47:52 -04:00 • committed by Stéphane Nicolet
parent 4c4cb185aa
commit 8cd5cbf693
1 changed files with 0 additions and 2 deletions
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2
src/search.cpp
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@ -518,7 +518,6 @@ namespace {
// Check if we have an upcoming move that draws by repetition, or
// if the opponent had an alternative move earlier to this position.
if ( !rootNode
&& pos.rule50_count() >= 3
&& alpha < VALUE_DRAW
&& pos.has_game_cycle(ss->ply))
{
@ -1398,7 +1397,6 @@ moves_loop: // When in check, search starts here
// Check if we have an upcoming move that draws by repetition, or
// if the opponent had an alternative move earlier to this position.
if ( depth < 0
&& pos.rule50_count() >= 3
&& alpha < VALUE_DRAW
&& pos.has_game_cycle(ss->ply))
{