Game guide · SQXQKJ
Play Tower of Hanoi with the rules at hand
A careful first move helps you understand the round. 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. Choose three to eight discs. All discs begin on the left tower. Keep the goal in mind before your next move.
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
Take a moment to check the current turn. An empty tower accepts any disc; an occupied tower accepts only a smaller disc than its top disc. Try the rule on the board, then read the next instruction.
The challenge in front of you
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.
Start here and follow along
- 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.
Getting comfortable with the controls
Tap the source tower and then its destination. Tap the selected tower again to cancel the selection.
Try this example
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. Start a new round when you are ready to try again.
Check this before moving on
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. The game area remains available above the explanation.
Read these answers for extra help
On this page, 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. Keep the current game state in view while applying this rule.
How do the controls work?
Tap the source tower and then its destination. Tap the selected tower again to cancel the selection. The game is played locally in your browser.
Can you show an example?
Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves. Keep the current game state in view while applying this rule.
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. You can start a new round from the game controls.
For this game, 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. A new round resets the current game.
During a round, 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. Keep the current game state in view while applying this rule.
Can I move several discs together?
No. One top disc moves at a time. The worked example offers another way to follow the rule.
When I start, what does Undo do?
It restores the immediately previous puzzle state and move count. Keep the current game state in view while applying this rule.
For this game, can I use the middle tower?
Yes. It is a temporary holding tower needed to move the stack legally. The game is played locally in your browser.
