Retire DirectionTable[]

[stockfish] / src / movegen.cpp

diff --git a/src/movegen.cpp b/src/movegen.cpp
index 0db293ccc7eb713901e139665578821a3b077a9f..0abca95d3a81ec68374091b90fc2b16f29025e90 100644 (file)
--- a/src/movegen.cpp
+++ b/src/movegen.cpp
@@ -244,7 +244,7 @@ MoveStack* generate_evasions(const Position& pos, MoveStack* mlist) {
       case QUEEN:
           // In case of a queen remove also squares attacked in the other direction to
           // avoid possible illegal moves when queen and king are on adjacent squares.
-          if (squares_straight_aligned(checksq, ksq))
+          if (RookPseudoAttacks[checksq] & (1ULL << ksq))
               sliderAttacks |= RookPseudoAttacks[checksq] | pos.attacks_from<BISHOP>(checksq);
           else
               sliderAttacks |= BishopPseudoAttacks[checksq] | pos.attacks_from<ROOK>(checksq);