Game guide · HONGENJY
Find your footing in Tower of Hanoi
Begin with the basic rule, then follow the result of your action. Move the complete stack of discs from the left tower to the right tower without placing a larger disc on a smaller one. Try the rule on the board, then read the next instruction. Choose three to eight discs. All discs begin on the left tower.
One puzzle with adjustable disc count from three to eight. Disc counts are settings, not separate game entries. Undo is available; refreshing restarts.
One thing to notice as you play
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. Start a new round when you are ready to try again.
The goal to keep in mind
Begin with the basic rule, then follow the result of your action. Move the complete stack of discs from the left tower to the right tower without placing a larger disc on a smaller one. Keep the goal in mind before your next move.
A walkthrough of the rules
- 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.
How your actions work
Check the rule below as you play. Tap the source tower and then its destination. Tap the selected tower again to cancel the selection.
A useful example
Take a moment to check the current turn. Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves. Start a new round when you are ready to try again.
Avoid this misunderstanding
Use the controls beside the game rather than guessing the rules. Only the top disc can leave a tower. Moving a large disc onto a small disc is rejected. Start a new round when you are ready to try again.
Helpful answers for players
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. The worked example offers another way to follow the rule.
How do the controls work?
Tap the source tower and then its destination. Tap the selected tower again to cancel the selection. No download or player account is required.
On this page, can you show an example?
Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves. The instructions above use these same rules.
When I start, which mistake should I avoid?
Only the top disc can leave a tower. Moving a large disc onto a small disc is rejected. Scores here do not represent cash or prizes.
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. You can start a new round from the game controls.
On this page, how many people can play here?
Solo. This is local browser play, not internet matchmaking. No download or player account is required.
For this game, 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. The instructions above use these same rules.
On this page, can I move several discs together?
No. One top disc moves at a time. You can start a new round from the game controls.
What does Undo do?
It restores the immediately previous puzzle state and move count. The game is played locally in your browser.
When I start, can I use the middle tower?
Yes. It is a temporary holding tower needed to move the stack legally. You can start a new round from the game controls.