This game adds one extra rule to the classic chess. A player wins (besides the standard chess winning possibilities) if his/her opponent's king is in check for the third time of the game. It means that when your opponent checks your king twice, you must protect the king as much as possible because the next check would cost you the game loss. The other rules are the same as for normal chess - it also means that you lose the game if your opponent checkmates your king, although this check is not the third one. Play this game
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