Remove condition on killers in history pruning

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index cf7e411d8504e2c2cba05869d91aaccdafcd137a..9dfa5193e99fd3e2e16889e6182470700aba58fa 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -935,7 +935,6 @@ moves_loop: // When in check search starts from here
 
           // Countermoves based pruning
           if (   predictedDepth < 3 * ONE_PLY
-              && move != ss->killers[0]
               && (!cmh  || (*cmh )[moved_piece][to_sq(move)] < VALUE_ZERO)
               && (!fmh  || (*fmh )[moved_piece][to_sq(move)] < VALUE_ZERO)
               && (!fmh2 || (*fmh2)[moved_piece][to_sq(move)] < VALUE_ZERO || (cmh && fmh)))