X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fposition.cpp;fp=src%2Fposition.cpp;h=ec356ace9b01494ae6a81801fda383d191b81cdd;hp=6c5a11b2595dad24ccbdcaa27f615cd749d424fb;hb=c489df6f5b5629a135af3b8222fa1ef607ec1526;hpb=62a0b65ff886f8f4895d854705c0c870e6a2a834

diff --git a/src/position.cpp b/src/position.cpp
index 6c5a11b2..ec356ace 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -544,7 +544,7 @@ bool Position::legal(Move m) const {
   // If the moving piece is a king, check whether the destination square is
   // attacked by the opponent.
   if (type_of(piece_on(from)) == KING)
-      return !(attackers_to(to) & pieces(~us));
+      return !(attackers_to(to, pieces() ^ from) & pieces(~us));
 
   // A non-king move is legal if and only if it is not pinned or it
   // is moving along the ray towards or away from the king.