Fix a condition in connected_moves()

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 76cc8e8d37d1caefdf0995955d6035e058932349..8dc1f85d9e51a30194f48a3c96d2170aa467259a 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1391,7 +1391,7 @@ split_point_start: // At split points actual search starts from here
 
     // Case 4: The destination square for m2 is defended by the moving piece in m1
     p1 = pos.piece_on(t1);
-    if (pos.attacks_from(p1, t1) & t2)
+    if (pos.attacks_from(p1, t1, pos.pieces() ^ f2) & t2)
         return true;
 
     // Case 5: Discovered check, checking piece is the piece moved in m1