Rewrite some bitboard init code

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index f1ab80f29294e20401fb93e9736b3b2b679668de..e235c3fc615733c6e68ae879381c6b48ba7bba2e 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1351,7 +1351,7 @@ moves_loop: // When in check and at SpNode search starts from here
       return true;
 
     // Second's destination is defended by the first move's piece
-    Bitboard m1att = pos.attacks_from(pos.piece_on(m1to), m1to, pos.pieces() ^ m2from);
+    Bitboard m1att = attacks_bb(pos.piece_on(m1to), m1to, pos.pieces() ^ m2from);
     if (m1att & m2to)
         return true;
 
@@ -1395,7 +1395,7 @@ moves_loop: // When in check and at SpNode search starts from here
         Piece pc = pos.piece_on(m1from);
 
         // The moved piece attacks the square 'tto' ?
-        if (pos.attacks_from(pc, m1to, occ) & m2to)
+        if (attacks_bb(pc, m1to, occ) & m2to)
             return true;
 
         // Scan for possible X-ray attackers behind the moved piece