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Simplify Post-LMR Continuation History Updates

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Passed Non-regression STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 55520 W: 14625 L: 14420 D: 26475
Ptnml(0-2): 247, 6522, 14007, 6747, 237
https://tests.stockfishchess.org/tests/view/66ad40874ff211be9d4ed8f7

Passed Non-regression LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 216168 W: 54561 L: 54540 D: 107067
Ptnml(0-2): 196, 24212, 59244, 24239, 193
https://tests.stockfishchess.org/tests/view/66aeac954ff211be9d4eda03

closes https://github.com/official-stockfish/Stockfish/pull/5530

bench 1418263
This commit is contained in:
Shawn Xu 2024-08-02 13:23:44 -07:00 • committed by Joost VandeVondele
parent bc80ece6c7
commit a75717ede1
1 changed files with 1 additions and 3 deletions
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4
src/search.cpp
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@ -1181,9 +1181,7 @@ moves_loop: // When in check, search starts here
value = -search<NonPV>(pos, ss + 1, -(alpha + 1), -alpha, newDepth, !cutNode); value = -search<NonPV>(pos, ss + 1, -(alpha + 1), -alpha, newDepth, !cutNode);
// Post LMR continuation history updates (~1 Elo) // Post LMR continuation history updates (~1 Elo)
int bonus = value <= alpha ? -stat_malus(newDepth) int bonus = value >= beta ? stat_bonus(newDepth) : -stat_malus(newDepth);
: value >= beta ? stat_bonus(newDepth)
: 0;
update_continuation_histories(ss, movedPiece, move.to_sq(), bonus); update_continuation_histories(ss, movedPiece, move.to_sq(), bonus);
} }