Each player has 9 tiles in 5 different shapes, showing parts of a river with funny drawings.
The die shows the 5 shapes plus a star, which is used as joker. The player throw the die and must try to place the tile with the thrown shape on the board - on either end of the river. If a player does not have a tile with the thrown shape anymore, he must take back as many tiles from the river until he gets that tile again.
Winner is the player who gets rid of all his tiles first, but this can take quite a while, because taking back tiles is very usual.