Small tweaks in do_move and friends

[stockfish] / src / types.h

diff --git a/src/types.h b/src/types.h
index 23e69d2ef03a8cec91e05c3ff64650d5d99b3bcf..eebd69e506c2cb19bd9f2390056dad41a2d383e1 100644 (file)
--- a/src/types.h
+++ b/src/types.h
@@ -417,7 +417,7 @@ inline MoveType type_of(Move m) {
 }
 
 inline PieceType promotion_type(Move m) {
-  return PieceType(((m >> 12) & 3) + 2);
+  return PieceType(((m >> 12) & 3) + KNIGHT);
 }
 
 inline Move make_move(Square from, Square to) {