Remove one division. (#2158)

[stockfish] / src / evaluate.cpp

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index d1a8ffd31fb4ab954ed3849bfa927d58bde5c3bf..dff84df3750e29ea5217000d6374109ad7fc1d0b 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -649,7 +649,7 @@ namespace {
                 // in the pawn's path attacked or occupied by the enemy.
                 defendedSquares = unsafeSquares = squaresToQueen = forward_file_bb(Us, s);
 
-                bb = forward_file_bb(Them, s) & pos.pieces(ROOK, QUEEN) & pos.attacks_from<ROOK>(s);
+                bb = forward_file_bb(Them, s) & pos.pieces(ROOK, QUEEN);
 
                 if (!(pos.pieces(Us) & bb))
                     defendedSquares &= attackedBy[Us][ALL_PIECES];