🗼 Tower of Hanoi
Move the whole stack to the far peg — never a bigger disk on a smaller.
DISKS
MOVES 0OPTIMAL 15BEST —
How to play Tower of Hanoi
- Pick how many disks to play with and press New Game.
- Tap a peg to lift its top disk, then tap another peg to drop it.
- You can never place a larger disk on top of a smaller one.
- Rebuild the whole stack on the right-hand peg to win.
Controls
| Input | Action |
|---|---|
| Tap a peg | Lift its top disk, or drop the held disk |
| Ctrl+F | Enter or leave full screen |
| Ctrl+P / Ctrl+Space | Pause and resume |
Tips & strategy
- The minimum number of moves for n disks is 2ⁿ−1 — four disks takes 15.
- To move a stack, first move everything above the bottom disk to the spare peg.
- Alternate your smallest disk in a steady direction each turn for the optimal solution.
- Start with three disks to learn the rhythm, then add more.
Frequently asked questions
What is the minimum number of moves?
For n disks the optimal solution takes 2ⁿ−1 moves: 7 for three disks, 15 for four, 31 for five, and so on.
Can every puzzle be solved?
Yes — Tower of Hanoi always has a solution, and the game shows the optimal count to aim for.
How is my score tracked?
Your record is the fewest moves you have used to solve each disk count.