Mate ends the game when only one active King remains. This usually occurs with two Kings left in play, but simultaneous mate of 2 or 3 Kings is theoretically possible, as is mate combined with stalemate. Frozen pieces cannot move, cannot check, cannot be captured, and cannot be passed through. It is possible for frozen pieces to create freak situations which allow mate in drawn positions or vice versa. If only one player remains, that player wins.
Perpetual check Occurs when a player checks the preceding player in unending succession.
If only one player remains, that player wins. Otherwise all active players draw. If only one player remains, that player wins. Pawns moving toward each other from opposite directions capture as in normal chess. Pawns moving at right angles to one another involve two capturing situations.