Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Small cleanup for stats adjustments #5649

Closed
wants to merge 1 commit into from
Closed

Small cleanup for stats adjustments #5649

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 7 additions & 7 deletions src/search.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1795,35 +1795,35 @@ void update_all_stats(const Position& pos,
Piece moved_piece = pos.moved_piece(bestMove);
PieceType captured;

int quietMoveBonus = stat_bonus(depth);
int quietMoveMalus = stat_malus(depth);
int bonus = stat_bonus(depth);
int malus = stat_malus(depth);

if (!pos.capture_stage(bestMove))
{
update_quiet_histories(pos, ss, workerThread, bestMove, quietMoveBonus);
update_quiet_histories(pos, ss, workerThread, bestMove, bonus);

// Decrease stats for all non-best quiet moves
for (Move move : quietsSearched)
update_quiet_histories(pos, ss, workerThread, move, -quietMoveMalus);
update_quiet_histories(pos, ss, workerThread, move, -malus);
}
else
{
// Increase stats for the best move in case it was a capture move
captured = type_of(pos.piece_on(bestMove.to_sq()));
captureHistory[moved_piece][bestMove.to_sq()][captured] << quietMoveBonus;
captureHistory[moved_piece][bestMove.to_sq()][captured] << bonus;
}

// Extra penalty for a quiet early move that was not a TT move in
// previous ply when it gets refuted.
if (prevSq != SQ_NONE && ((ss - 1)->moveCount == 1 + (ss - 1)->ttHit) && !pos.captured_piece())
update_continuation_histories(ss - 1, pos.piece_on(prevSq), prevSq, -quietMoveMalus);
update_continuation_histories(ss - 1, pos.piece_on(prevSq), prevSq, -malus);

// Decrease stats for all non-best capture moves
for (Move move : capturesSearched)
{
moved_piece = pos.moved_piece(move);
captured = type_of(pos.piece_on(move.to_sq()));
captureHistory[moved_piece][move.to_sq()][captured] << -quietMoveMalus;
captureHistory[moved_piece][move.to_sq()][captured] << -malus;
}
}

Expand Down