Each player starts with three stacks of three disks in the player's color. Each stack contains a small, medium, and large disk. Players take turns moving one of their disks onto a 4X4 grid or onto the top of a stack in the grid or from one stack or place in the grid to another. Players must move a disk that is on a grid space or on top of a stack. Players may place a disk onto a grid space or onto a larger disk. The winner is the first to line up 4 of his or her disks in a row.

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