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Simplify evaluate condition on search 

Remove condition for MOVE_NULL on search.

STC:
LLR: 2.94 (-2.94,2.94) <-2.50,0.50>
Total: 47544 W: 11968 L: 11864 D: 23712
Ptnml(0-2): 150, 5535, 12318, 5599, 170
https://tests.stockfishchess.org/tests/view/616e37143799eb91f1f071ee

LTC:
LLR: 2.93 (-2.94,2.94) <-2.50,0.50>
Total: 67472 W: 16938 L: 16870 D: 33664
Ptnml(0-2): 49, 7119, 19331, 7189, 48
https://tests.stockfishchess.org/tests/view/616e3fab3799eb91f1f071f1

closes https://github.com/official-stockfish/Stockfish/pull/3746

bench: 5255771
pull/3749/head
bmc4 2021-10-19 09:23:30 -03:00 committed by Joost VandeVondele
parent 67d0616483
commit b37054c310
1 changed files with 1 additions and 5 deletions
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6
src/search.cpp
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@ -787,11 +787,7 @@ namespace {
}
else
{
// In case of null move search use previous static eval with a different sign
if ((ss-1)->currentMove != MOVE_NULL)
ss->staticEval = eval = evaluate(pos);
else
ss->staticEval = eval = -(ss-1)->staticEval;
ss->staticEval = eval = evaluate(pos);
// Save static evaluation into transposition table
if(!excludedMove)