Simplify LMR for captures

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 4e6358c0d804f91fd6e8b038ec33e8c605b3e739..0574da5897274c2653f82234675a08545de9c644 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -996,8 +996,7 @@ moves_loop: // When in check, search starts from here
           if (captureOrPromotion) // (~5 Elo)
           {
               // Increase reduction by comparing opponent's stat score
-              if (   (ss-1)->statScore >= 0
-                  && thisThread->captureHistory[movedPiece][to_sq(move)][type_of(pos.captured_piece())] < 0)
+              if ((ss-1)->statScore >= 0)
                   r += ONE_PLY;
 
               r -= r ? ONE_PLY : DEPTH_ZERO;