If you dont know what the Tower of Hanoi is, its basically a game where you but all the rings into the other side. 1) Only one disk can be moved at a time. 2) Each move consists of taking the upper disk from one of the stacks and placing it on top of another stack or on an empty rod. 3) No larger disk may be placed on top of a smaller disk. The more rings there are, the difficult it gets.