kate/BadFish
1
0
Fork 0
mirror of https://github.com/sockspls/badfish synced 2025-04-30 16:53:09 +00:00
Code Issues Releases Wiki Activity

Do stats updates after LMR for captures

Browse source 
Since captures that are in LMR use continuation histories of corresponding quiet moves it makes sense to update this histories if this capture passes LMR by analogy to existing logic for quiet moves.

Passed STC
https://tests.stockfishchess.org/tests/view/61f367eef7fba9f1a4f1318b
LLR: 2.94 (-2.94,2.94) <0.00,2.50>
Total: 208464 W: 56006 L: 55407 D: 97051
Ptnml(0-2): 964, 23588, 54655, 23935, 1090

Passed LTC
https://tests.stockfishchess.org/tests/view/61f41e34f7fba9f1a4f15241
LLR: 2.96 (-2.94,2.94) <0.50,3.00>
Total: 69144 W: 18793 L: 18441 D: 31910
Ptnml(0-2): 65, 6982, 20142, 7302, 81

closes https://github.com/official-stockfish/Stockfish/pull/3910

bench 4637392
This commit is contained in:
Michael Chaly 2022-01-29 06:39:40 +03:00 • committed by Joost VandeVondele
parent 8b4afcf8f7
commit 90d051952f
1 changed files with 4 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
src/search.cpp
View file

@ -1194,11 +1194,14 @@ moves_loop: // When in check, search starts here
value = -search<NonPV>(pos, ss+1, -(alpha+1), -alpha, newDepth + doDeeperSearch, !cutNode);
// If the move passed LMR update its stats
if (didLMR && !captureOrPromotion)
if (didLMR)
{
int bonus = value > alpha ? stat_bonus(newDepth)
: -stat_bonus(newDepth);
if (captureOrPromotion)
bonus /= 4;
update_continuation_histories(ss, movedPiece, to_sq(move), bonus);
}
}