X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=5abbafbcbfcd8b756dbf481efdffff9187e78016;hp=1abe022aacefa580d699131310127c8a7910437f;hb=d23454854e72e1311363a8c98cd58a5d44c427f9;hpb=c2902112e51b50c8ebcf263825597f437fdf56e7

diff --git a/src/search.cpp b/src/search.cpp
index 1abe022a..5abbafbc 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1225,7 +1225,8 @@ split_point_start: // At split points actual search starts from here
               continue;
           }
 
-          // Prune moves with negative or equal SEE
+          // Prune moves with negative or equal SEE.
+          // Also prune moves with positive SEE where capturing loses a tempo and SEE < beta - futilityBase.
           if (   futilityBase < beta
               && depth < DEPTH_ZERO
               && pos.see_asymm(move, beta - futilityBase) <= 0)