Game guide · KP028
Making your first moves in Tower of Hanoi
Use the controls beside the game rather than guessing the rules. 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. 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.
Something to practise
The board gives you the information needed for the next action. An empty tower accepts any disc; an occupied tower accepts only a smaller disc than its top disc.
What you are aiming for
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. The game area remains available above the explanation.
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.
Using the playing area
The example and rules describe the same game you can play above. Tap the source tower and then its destination. Tap the selected tower again to cancel the selection. Start a new round when you are ready to try again.
A closer look at one example
Read the position before choosing your next 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.
Notice this detail
Begin with the basic rule, then follow the result of your action. Only the top disc can leave a tower. Moving a large disc onto a small disc is rejected. Keep the goal in mind before your next move.
A few questions answered
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. You can start a new round from the game controls.
When I start, 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.
During a round, can you show an example?
Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves. You can start a new round from the game controls.
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. Use the labelled controls for your next action.
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. Keep the current game state in view while applying this rule.
On this page, how many people can play here?
Solo. This is local browser play, not internet matchmaking. Keep the current game state in view while applying this rule.
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. You can start a new round from the game controls.
For this game, can I move several discs together?
No. One top disc moves at a time. Keep the current game state in view while applying this rule.
During a round, what does Undo do?
It restores the immediately previous puzzle state and move count. The worked example offers another way to follow the rule.
Can I use the middle tower?
Yes. It is a temporary holding tower needed to move the stack legally. No download or player account is required.
