Game guide · KJBANJIA
A practical guide to Tower of Hanoi
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. Try the rule on the board, then read the next instruction. 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 small practice goal
A careful first move helps you understand the round. An empty tower accepts any disc; an occupied tower accepts only a smaller disc than its top disc. The game area remains available above the explanation.
The challenge in front of you
Take a moment to check the current turn. 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.
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.
Making selections and moves
Read the position before choosing your next action. 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.
Work through an 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.
Notice this detail
A careful first move helps you understand the round. 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
When I start, 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 controls work with mouse or touch.
How do the controls work?
Tap the source tower and then its destination. Tap the selected tower again to cancel the selection. The worked example offers another way to follow the rule.
For this game, can you show an example?
Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves. Scores here do not represent cash or prizes.
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. No download or player account is required.
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. A new round resets the current game.
On this page, how many people can play here?
Solo. This is local browser play, not internet matchmaking. Use the labelled controls for your next action.
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. Use the labelled controls for your next action.
When I start, can I move several discs together?
No. One top disc moves at a time. The worked example offers another way to follow the rule.
During a round, what does Undo do?
It restores the immediately previous puzzle state and move count. You can start a new round from the game controls.
When I start, can I use the middle tower?
Yes. It is a temporary holding tower needed to move the stack legally. Scores here do not represent cash or prizes.