Bench: 27831406

TerjeKir · Jan 4, 2025 · fd3824c · fd3824c
1 parent 54e8064
commit fd3824c
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/src/history.h b/src/history.h
@@ -26,7 +26,7 @@
 #include "types.h"
 
 
-#define QuietEntry(move)        (&thread->history[thread->pos.stm][fromSq(move)][toSq(move)])
+#define QuietEntry(move)        (&thread->history[ColorOf(piece(move))][fromSq(move)][toSq(move)])
 #define PawnEntry(move)         (&thread->pawnHistory[PawnStructure(&thread->pos)][piece(move)][toSq(move)])
 #define NoisyEntry(move)        (&thread->captureHistory[piece(move)][toSq(move)][PieceTypeOf(capturing(move))])
 #define ContEntry(offset, move) (&(*(ss-offset)->continuation)[piece(move)][toSq(move)])

diff --git a/src/search.c b/src/search.c
@@ -350,6 +350,11 @@ static int AlphaBeta(Thread *thread, Stack *ss, int alpha, int beta, Depth depth
     if (!isTerminal(ttScore) && TTScoreIsMoreInformative(ttBound, ttScore, eval))
         eval = ttScore;
 
+    if (ss->ply > 1 && (ss-1)->move && !moveIsCapture((ss-1)->move)) {
+        int bonus = CLAMP(-10 * ((ss-1)->staticEval + ss->staticEval), -1024, 1024) + 512;
+        QuietHistoryUpdate((ss-1)->move, bonus);
+    }
+
     // Improving if not in check, and current eval is higher than 2 plies ago
     bool improving = !inCheck && eval > (ss-2)->staticEval;