Game guide · RCFUTURE11
Read before your next round of Tower of Hanoi
Keep the goal in view while choosing a move. 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. 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.
One thing to notice as you play
Keep the goal in view while choosing a move. 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.
What you need to achieve
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.
The playing sequence
- 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
Tap the source tower and then its destination. Tap the selected tower again to cancel the selection.
An example to follow
The example and rules describe the same game you can play above. Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves.
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. Start a new round when you are ready to try again.
Common questions
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. The game is played locally in your browser.
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.
Can you show an example?
Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves. Use the labelled controls for your next action.
For this game, which mistake should I avoid?
Only the top disc can leave a tower. Moving a large disc onto a small disc is rejected. The worked example offers another way to follow the rule.
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. Use the labelled controls for your next action.
When I start, 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 worked example offers another way to follow the rule.
Can I move several discs together?
No. One top disc moves at a time. Use the labelled controls for your next action.
What does Undo do?
It restores the immediately previous puzzle state and move count. A new round resets the current game.
During a round, can I use the middle tower?
Yes. It is a temporary holding tower needed to move the stack legally. Use the labelled controls for your next action.
