X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fposition.h;h=234da26dbf72fa2d63f39ac66b9a10f8002e6c67;hp=8121bec1c9c0642c2e17f2a96b2acbcc9fccc76c;hb=187451294f02c2b6424c9679a12c901e336a4180;hpb=a9fa1fc7f76458b9e09410fe966f03324ada3cb3

diff --git a/src/position.h b/src/position.h
index 8121bec1..234da26d 100644
--- a/src/position.h
+++ b/src/position.h
@@ -483,7 +483,7 @@ inline bool Position::pawn_is_passed(Color c, Square s) const {
 }
 
 inline bool Position::square_is_weak(Square s, Color c) const {
-  return !(pieces(PAWN, c) & outpost_mask(opposite_color(c), s));
+  return !(pieces(PAWN, opposite_color(c)) & attack_span_mask(c, s));
 }
 
 inline Key Position::get_key() const {