Bench: 24323046

TerjeKir · Dec 29, 2024 · 08bcfd8 · 08bcfd8
1 parent 2a3f84c
commit 08bcfd8
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/src/search.c b/src/search.c
@@ -463,6 +463,13 @@ static int AlphaBeta(Thread *thread, Stack *ss, int alpha, int beta, Depth depth
             if (moveCount > (improving ? depth * depth : -2 +  depth * depth / 2))
                 mp.onlyNoisy = true;
 
+            // Futility pruning
+            if (   !inCheck
+                && quiet
+                && lmrDepth < 5
+                && eval + 200 + 200 * lmrDepth <= alpha)
+                continue;
+
             // History pruning
             if (lmrDepth < 3 && ss->histScore < -1024 * depth)
                 continue;