Adjust moveCount history only at LMR

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 06262131f40bfe895e891540c6985f2405504285..1e70be60a7f43adb774e2d8af4d77e62d881aa43 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -908,8 +908,7 @@ moves_loop: // When in check search starts from here
               }
 
               // Reduced depth of the next LMR search
-              int mch = std::max(1, moveCount - (ss-1)->moveCount / 16);
-              int lmrDepth = std::max(newDepth - reduction<PvNode>(improving, depth, mch), DEPTH_ZERO) / ONE_PLY;
+              int lmrDepth = std::max(newDepth - reduction<PvNode>(improving, depth, moveCount), DEPTH_ZERO) / ONE_PLY;
 
               // Countermoves based pruning
               if (   lmrDepth < 3