Press Start to start the game and Restart Game for a new one. There are 12 buttons that move the squares in the center as if they were on a belt. Each square is either black or white. The goal is to have all 9 of the squares in the front black. This means that the 9 squares on the opposite side that you cannot see are white.

Strategy This is a puzzle. It is easier to solve if you determine what the color the squares are on the unseen, flip side.