Simplify reduction condition for cutNodes

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index c5c7f111e8803ee1f4330fa1b7e32b3d5037fb3e..96b1d0f1a0c77e35319236254060952d2a2e595c 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1156,7 +1156,7 @@ moves_loop: // When in check, search starts here
               r--;
 
           // Increase reduction for cut nodes (~3 Elo)
-          if (cutNode && move != ss->killers[0])
+          if (cutNode)
               r += 2;
 
           // Increase reduction if ttMove is a capture (~3 Elo)