How do you play Tower of Hanoi?

The objective is to move all disks from the left peg to the right peg. You can only move one disk at a time, and you cannot place a larger disk on top of a smaller disk. Use the middle peg as temporary storage.

What is the minimum number of moves in Tower of Hanoi?

The minimum number of moves is 2^n - 1, where n is the number of disks. For 3 disks, it's 7 moves; for 4 disks, it's 15 moves; for 5 disks, it's 31 moves.

Can I get 3 stars on every level?

Yes! 3 stars means you solved the puzzle in the optimal number of moves (2^n - 1). 2 stars means you used up to 1.5x the optimal moves. 1 star means you completed the level.

Does using hints affect my star rating?

No, using the hint system is free and does not affect your star rating. Hints highlight the next optimal move to help you learn the pattern.

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How to Play

Objective

Move all disks from the left peg to the right peg. In reverse levels, move disks from right to left.

Rules

Only one disk can be moved at a time
Each move takes the top disk from a peg
A disk can only be placed on top of a larger disk (or on an empty peg)
A disk cannot be placed on a smaller disk

Controls

Click/tap a peg to select it (picks up top disk)
Click/tap another peg to move the disk there
Click the same peg again to deselect

Scoring

3 stars = optimal moves (2^n - 1)
2 stars = within 1.5x optimal
1 star = level completed

Features

Hint: Shows the next optimal move
Auto: Watch the recursive solution
Undo: Reverse your moves

Tower of Hanoi - Free Online Puzzle Game | GameZipper

Quick Play

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