Game guide · JNJPJZ
Tower of Hanoi: how a round works
Keep the goal in view while choosing a move. Move the complete stack of discs from the left tower to the right tower without placing a larger disc on a smaller one. The game area remains available above the explanation. Choose three to eight discs. All discs begin on the left tower. Try the rule on the board, then read the next instruction.
One puzzle with adjustable disc count from three to eight. Disc counts are settings, not separate game entries. Undo is available; refreshing restarts.
A focus for your next round
Check the rule below as you play. An empty tower accepts any disc; an occupied tower accepts only a smaller disc than its top disc. Keep the goal in mind before your next move.
The objective of a round
Read the position before choosing your next action. Move the complete stack of discs from the left tower to the right tower without placing a larger disc on a smaller one. Start a new round when you are ready to try again.
How to proceed
- Choose three to eight discs. All discs begin on the left tower.
- Select the source tower, then the destination tower. Only the top disc moves.
- An empty tower accepts any disc; an occupied tower accepts only a smaller disc than its top disc.
- Use Undo to reverse a move. Complete the puzzle when the right tower holds the whole stack.
Input guidance
Take a moment to check the current turn. Tap the source tower and then its destination. Tap the selected tower again to cancel the selection. Try the rule on the board, then read the next instruction.
An example before you play
Begin with the basic rule, then follow the result of your action. Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves.
Watch out for this
The board gives you the information needed for the next action. Only the top disc can leave a tower. Moving a large disc onto a small disc is rejected.
Clarifying the way this game works
For this game, what is the aim of Tower of Hanoi?
Move the complete stack of discs from the left tower to the right tower without placing a larger disc on a smaller one. No download or player account is required.
For this game, how do the controls work?
Tap the source tower and then its destination. Tap the selected tower again to cancel the selection. You can start a new round from the game controls.
On this page, can you show an example?
Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves. A new round resets the current game.
During a round, which mistake should I avoid?
Only the top disc can leave a tower. Moving a large disc onto a small disc is rejected. The game is played locally in your browser.
When I start, what rules and limits are used here?
One puzzle with adjustable disc count from three to eight. Disc counts are settings, not separate game entries. Undo is available; refreshing restarts. Use the labelled controls for your next action.
For this game, how many people can play here?
Solo. This is local browser play, not internet matchmaking. The game is played locally in your browser.
What is the minimum number of moves?
For n discs the minimum is 2^n − 1. The board shows the minimum for your selected disc count. A new round resets the current game.
Can I move several discs together?
No. One top disc moves at a time. Use the labelled controls for your next action.
For this game, what does Undo do?
It restores the immediately previous puzzle state and move count. The controls work with mouse or touch.
Can I use the middle tower?
Yes. It is a temporary holding tower needed to move the stack legally. A new round resets the current game.