The object of the game is to move all of the disks to the peg on the right. Click-and-drag to move a disc. Only one disc may be moved at a time. A disc can be placed either on an empty peg or on top of a larger disc.
Click the Timer checkbox to turn the timer on or off.
Vary the difficulty by changing the number of discs. The + and - buttons increase and decrease the number of discs. You will likely have no problem with three discs, but can you solve the puzzle with 12 discs?
If you need help, select Solution to watch the computer solve the puzzle. The Speed slide determines how fast the discs move.
Restart returns all of the disks to the left peg.
If you’ve played the game as well as possible, you should have discovered that the minimum number of moves for 1, 2, 3, and 4 disks, respectively, is 1, 3, 7, and 15. If it took you more moves than that, then press the Solution button and watch the computer solve the tower in the minimum number of moves.
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