THE SMART TRICK OF CHESS BOARD THAT NO ONE IS DISCUSSING

Castling can be done only when there are no items between the king as well as rook you are going to move. The king and rook are not able to have moved previously. You can not castle if your king is in Check out or if doing so would shift your king by way of or to your sq. exactly where he might be in Check out. Thanks! We are glad this was helpful.