Tweak ttCapture reduction

More reduction at shallow depth for quiet moves when ttMove is a capture.
official-pikafish · Oct 2, 2024 · f9e6c21 · f9e6c21
1 parent 1425588
commit f9e6c21
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/search.cpp b/src/search.cpp
@@ -1065,7 +1065,7 @@ Value Search::Worker::search(
 
         // Increase reduction if ttMove is a capture but the current move is not a capture (~3 Elo)
         if (ttCapture && !capture)
-            r++;
+            r += 1 + (depth < 8);
 
         // Increase reduction if next ply has a lot of fail high (~5 Elo)
         if ((ss + 1)->cutoffCnt > 3)