THE SMART TRICK OF CHESS BOARD THAT NO ONE IS DISCUSSING

Castling can be done only when there won't be any pieces involving the king along with the rook you might go. The king and rook can not have moved Formerly. You can't castle If the king is in Test or if doing this would go your king through or to the sq. in which he can be in Verify. Many thanks! We are happy this was handy.A pawn can transfer ahea