Input (grade 13): If a mal lands on a station occupied by the opponent's team, the opponent's mal is removed from the course and returned to the starting position, and the current player is allowed to cast again.
Output (grade 11): When a mal arrives the circle that is already occupied by a mal of opposite team, the mal of opposite team is captured by new mal, and should restart from the start point. If a mal lands on circle that another mal of the own team exist, two mals can make a group, and move together.