The object of the Tower of Hanoi puzzle game is to move all the disks from tower 1 to tower 3 in the least amount of moves. You may move ONLY one disk at a time. A larger disk can not ever be put on top of a smaller disk. You can choose between 3 and 8 disks for this Tower of Hanoi puzzle game. NOTE: The 'minimum no. of moves', which is how you win the game is based on a simple mathematic formula which is explained below (see 'The Math').