if (!(between_bb(s1, s2) & pieces()))
{
- // In the cuckoo table, both moves Rc1c5 and Rc5c1 are stored in the same
- // location. We select the legal one by reversing the move variable if necessary.
- if (empty(s1))
- move = make_move(s2, s1);
-
if (ply > i)
return true;
// For nodes before or at the root, check that the move is a repetition one
- // rather than a move to the current position
+ // rather than a move to the current position.
+ // In the cuckoo table, both moves Rc1c5 and Rc5c1 are stored in the same
+ // location, so we have to select which square to check.
if (color_of(piece_on(empty(s1) ? s2 : s1)) != side_to_move())
continue;