Game guide · 4008007786
Making your first moves in Tower of Hanoi
Check the rule below as you play. Move the complete stack of discs from the left tower to the right tower without placing a larger disc on a smaller one. 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.
One thing to notice as you play
Begin with the basic rule, then follow the result of your action. 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.
Your goal
Check the rule below as you play. 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.
Step by step
- 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 to use the controls
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. The game area remains available above the explanation.
Follow the example
Keep the goal in view while choosing a move. 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
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.
Answers about the rules and controls
During a round, 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. A new round resets the current game.
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. The instructions above use these same rules.
On this page, 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.
During a round, 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.
How many people can play here?
Solo. This is local browser play, not internet matchmaking. The controls work with mouse or touch.
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. No download or player account is required.
For this game, can I move several discs together?
No. One top disc moves at a time. No download or player account is required.
During a round, what does Undo do?
It restores the immediately previous puzzle state and move count. Use the labelled controls for your next action.
During a round, 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.
