The aim of this game is to place cards on the playing field, so that they all turn face down. The cards are moving along the chain and you should use them before they reach the chain's other end, otherwise you'll lose the game. The playing field is divided into small squares, each for one card. You can't put cards just on any square, you may only place them next to other cards. You may only place cards that are one rank higher or lower than the card on the playing field. When you surround a card with other ones, it turns face down. When all the cards become face down, the level wil be passed.