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Simplify some qsearch conditions

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Use the assert which ensures that beta == alpha+1 at PVNodes
to simplify a little bit the conditions further down in the code.

passed STC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 56160 W: 14370 L: 14173 D: 27617
Ptnml(0-2): 210, 6192, 15076, 6395, 207
https://tests.stockfishchess.org/tests/view/64bc769cdc56e1650abb2e26

closes https://tests.stockfishchess.org/tests/view/64bc769cdc56e1650abb2e26

No functional change
This commit is contained in:
windfishballad 2023-07-22 20:35:40 -04:00 • committed by Stéphane Nicolet
parent 4b2979760f
commit 78e3d2ad78
1 changed files with 2 additions and 2 deletions
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4
src/search.cpp
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@ -1496,7 +1496,7 @@ moves_loop: // When in check, search starts here
return bestValue;
}
if (PvNode && bestValue > alpha)
if (bestValue > alpha)
alpha = bestValue;
futilityBase = bestValue + 200;
@ -1608,7 +1608,7 @@ moves_loop: // When in check, search starts here
if (PvNode) // Update pv even in fail-high case
update_pv(ss->pv, move, (ss+1)->pv);
if (PvNode && value < beta) // Update alpha here!
if (value < beta) // Update alpha here!
alpha = value;
else
break; // Fail high