Tower of Hanoi

Shift a stack of 4 disks from the first peg to the last. A bigger disk may never sit on a smaller one.

How to play

1. Tap a peg to pick up its top disk.
2. Tap another peg to drop it there.
3. Never place a larger disk on a smaller one.
4. Rebuild the full tower on the last peg. The best is 15 moves.