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Larger bonus when updating quiet stats

Browse source 
Also removes unused arguments to update_all_stats to
fix compiler warnings about unused parameters.

Passed non-regression STC:
https://tests.stockfishchess.org/tests/view/6689a79a0fdd852d63cf52e9
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 26496 W: 6901 L: 6669 D: 12926
Ptnml(0-2): 62, 3094, 6715, 3304, 73

Passed non-regression LTC:
https://tests.stockfishchess.org/tests/view/6689a9960fdd852d63cf532d
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 41214 W: 10373 L: 10173 D: 20668
Ptnml(0-2): 11, 4491, 11412, 4673, 20

closes https://github.com/official-stockfish/Stockfish/pull/5456

bench 1169958
This commit is contained in:
Linmiao Xu 2024-07-06 16:04:07 -04:00 • committed by Joost VandeVondele
parent 75c8cb2c2f
commit 4e9fded5a6
1 changed files with 3 additions and 10 deletions
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13
src/search.cpp
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@ -131,8 +131,6 @@ void update_all_stats(const Position& pos,
Stack* ss,
Search::Worker& workerThread,
Move bestMove,
Value bestValue,
Value beta,
Square prevSq,
Move* quietsSearched,
int quietCount,
@ -1362,8 +1360,8 @@ moves_loop: // When in check, search starts here
// If there is a move that produces search value greater than alpha we update the stats of searched moves
else if (bestMove)
update_all_stats(pos, ss, *this, bestMove, bestValue, beta, prevSq, quietsSearched,
quietCount, capturesSearched, captureCount, depth);
update_all_stats(pos, ss, *this, bestMove, prevSq, quietsSearched, quietCount,
capturesSearched, captureCount, depth);
// Bonus for prior countermove that caused the fail low
else if (!priorCapture && prevSq != SQ_NONE)
@ -1772,8 +1770,6 @@ void update_all_stats(const Position& pos,
Stack* ss,
Search::Worker& workerThread,
Move bestMove,
Value bestValue,
Value beta,
Square prevSq,
Move* quietsSearched,
int quietCount,
@ -1790,10 +1786,7 @@ void update_all_stats(const Position& pos,
if (!pos.capture_stage(bestMove))
{
int bestMoveBonus = bestValue > beta + 172 ? quietMoveBonus // larger bonus
: stat_bonus(depth); // smaller bonus
update_quiet_stats(pos, ss, workerThread, bestMove, bestMoveBonus);
update_quiet_stats(pos, ss, workerThread, bestMove, quietMoveBonus);
// Decrease stats for all non-best quiet moves
for (int i = 0; i < quietCount; ++i)