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Simplifying two formulas

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by eliminating two multiplication operations.

Passed STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 60000 W: 15193 L: 14996 D: 29811
Ptnml(0-2): 199, 7100, 15215, 7277, 209
https://tests.stockfishchess.org/tests/view/653beb69cc309ae83956129d

Passed LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 122910 W: 30471 L: 30353 D: 62086
Ptnml(0-2): 68, 13961, 33271, 14095, 60
https://tests.stockfishchess.org/tests/view/653c5848cc309ae839561ae7

closes https://github.com/official-stockfish/Stockfish/pull/4857

bench: 1216779
This commit is contained in:
FauziAkram 2023-11-01 13:42:06 +03:00 • committed by Joost VandeVondele
parent e277dda716
commit 101d2bb8ea
1 changed files with 2 additions and 2 deletions
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4
src/search.cpp
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@ -772,7 +772,7 @@ Value search(Position& pos, Stack* ss, Value alpha, Value beta, Depth depth, boo
update_continuation_histories(ss - 1, pos.piece_on(prevSq), prevSq, update_continuation_histories(ss - 1, pos.piece_on(prevSq), prevSq,
stat_bonus(depth) * bonus); stat_bonus(depth) * bonus);
thisThread->mainHistory[~us][from_to((ss - 1)->currentMove)] thisThread->mainHistory[~us][from_to((ss - 1)->currentMove)]
<< stat_bonus(depth) * bonus * 57 / 100; << stat_bonus(depth) * bonus / 2;
} }
return value; return value;
} }
@ -1339,7 +1339,7 @@ moves_loop: // When in check, search starts here
update_continuation_histories(ss - 1, pos.piece_on(prevSq), prevSq, update_continuation_histories(ss - 1, pos.piece_on(prevSq), prevSq,
stat_bonus(depth) * bonus); stat_bonus(depth) * bonus);
thisThread->mainHistory[~us][from_to((ss - 1)->currentMove)] thisThread->mainHistory[~us][from_to((ss - 1)->currentMove)]
<< stat_bonus(depth) * bonus * 61 / 100; << stat_bonus(depth) * bonus / 2;
} }
if (PvNode) if (PvNode)