Two players alternately place the pieces which are bent in 120 degrees, and a player who first positioned 7 pieces in a row is the winner. The profoundness of this game lies in the strategy that when placing your pice may favor your opponent to increase his/her piece. Being left in the room, it acts as an interior objet d'art,whichlights up the atomosphere. And all the pieces can be stored in the base when it's not being played