Bench: 9311225

TerjeKir · Oct 19, 2023 · 8b59a2d · 8b59a2d
1 parent 2efd0f4
commit 8b59a2d
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/src/search.c b/src/search.c
@@ -526,9 +526,17 @@ static int AlphaBeta(Thread *thread, Stack *ss, int alpha, int beta, Depth depth
         }
 
         // Full depth zero-window search
-        else if (!pvNode || moveCount > 1)
+        else if (!pvNode || moveCount > 1) {
             score = -AlphaBeta(thread, ss+1, -alpha-1, -alpha, newDepth, !cutnode);
 
+            if (quiet && (score <= alpha || score >= beta)) {
+                int bonus = score >= beta ?  Bonus(depth)
+                                          : -Bonus(depth);
+
+                UpdateContHistories(ss, move, bonus);
+            }
+        }
+
         // Full depth alpha-beta window search
         if (pvNode && (score > alpha || moveCount == 1))
             score = -AlphaBeta(thread, ss+1, -beta, -alpha, newDepth, false);