In this game, the players have to place their cards onto stacks on the table. This is possible if the number on the card is half or double the value of the top card of any stack and the same color code. If that is not possible, players start new stacks, which count negative points at the end of the game. "Stop" cards close a stack, which then doesn't count negative points anymore. Whoever reaches a certain number of points, for example 25, loses.