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Simplify lowply-history logic

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Don't restrict usage to ttPv nodes exclusively

STC:
http://tests.stockfishchess.org/tests/view/5e5634f284a82b4acd41499a
LLR: 2.94 (-2.94,2.94) {-1.50,0.50}
Total: 152796 W: 29146 L: 29178 D: 94472
Ptnml(0-2): 2590, 17792, 35628, 17836, 2552

LTC:
http://tests.stockfishchess.org/tests/view/5e575d4984a82b4acd4149e8
LLR: 2.95 (-2.94,2.94) {-1.50,0.50}
Total: 20078 W: 2688 L: 2587 D: 14803
Ptnml(0-2): 139, 1914, 5853, 1973, 160

closes https://github.com/official-stockfish/Stockfish/pull/2565

bench: 4923286
This commit is contained in:
Guenther Demetz 2020-02-27 15:58:22 +01:00 • committed by Joost VandeVondele
parent 09f53dbfa5
commit f27339d35b
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@ -957,7 +957,7 @@ moves_loop: // When in check, search starts from here
contHist, contHist,
countermove, countermove,
ss->killers, ss->killers,
depth > 12 && ttPv ? ss->ply : MAX_PLY); depth > 12 ? ss->ply : MAX_PLY);
value = bestValue; value = bestValue;
singularLMR = moveCountPruning = false; singularLMR = moveCountPruning = false;