With four different colors and four rotating sides, the Double Disk can get quite tricky to solve, even for puzzle-minded people. Like a Rubik's Cube, the object of Double Disk is to get like colors together on each side. Both sides of each disk turn independently so the colors from one disk end up on the other. Once all the colors are disordered it's up to you to rearrange them so that both sides of each disk are the same color again. The Double Disk comes with a helpful guide in case you get stuck trying to solve the puzzle. This puzzle is a wonderful new challenge to keep the big brain in your family busy!