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Simplify continuation histories

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Functional simplification.

Simplify continuation histories, therefore increasing the effect of
stats updates and movepicker bonuses for continuation history 3 plies
deep.

Passed STC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 229184 W: 59087 L: 59080 D: 111017
Ptnml(0-2): 554, 27248, 59002, 27213, 575
https://tests.stockfishchess.org/tests/view/665c7a09fd45fb0f907c223b

Passed LTC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 44532 W: 11419 L: 11223 D: 21890
Ptnml(0-2): 18, 4787, 12457, 4989, 15
https://tests.stockfishchess.org/tests/view/665c8842fd45fb0f907c23ec

closes https://github.com/official-stockfish/Stockfish/pull/5339

Bench: 1326444
This commit is contained in:
FauziAkram
2024-06-02 18:40:32 +03:00
committed by Disservin
parent 00a28ae325
commit 3d6756769c
2 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/search.cpp
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@@ -1811,7 +1811,7 @@ void update_continuation_histories(Stack* ss, Piece pc, Square to, int bonus) {
if (ss->inCheck && i > 2)
break;
if (((ss - i)->currentMove).is_ok())
(*(ss - i)->continuationHistory)[pc][to] << bonus / (1 + 3 * (i == 3));
(*(ss - i)->continuationHistory)[pc][to] << bonus / (1 + (i == 3));
}
}