Bench: 2948476

jhonnold · Feb 15, 2024 · 51b0889 · 51b0889
1 parent 1628fe4
commit 51b0889
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/search.c b/src/search.c
@@ -672,7 +672,10 @@ int Negamax(int alpha, int beta, int depth, int cutnode, ThreadData* thread, PV*
 
         // no score failed above sBeta, so this is singular
         if (score < sBeta) {
-          if (!isPV && score < sBeta - 50 && ss->de <= 6 && !IsCap(move)) {
+          if (!isPV && score < sBeta - 100 && ss->de <= 6 && !IsCap(move)) {
+            extension = 4;
+            ss->de    = (ss - 1)->de + 1;
+          } else if (!isPV && score < sBeta - 50 && ss->de <= 6 && !IsCap(move)) {
             extension = 3;
             ss->de    = (ss - 1)->de + 1;
           } else if (!isPV && score < sBeta - 17 && ss->de <= 6) {