At the start of the game, two equation cards are randomly chosen. Each equation card has five equations on it, for a total of ten equations that will be in effect for the duration of the game. The equations state equivalences between certain combinations of colors. Four target cards are turned up, each with some combination of five chips represented on the target card. On your turn, you roll a colored die to randomly pick a colored chip for yourself, or you can make one exchange of your colored chips based on the equations. The goal is to end up with the right combination of chips to get one of the target cards.