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SZLYSY56

RULES & PRACTICE

How to Play Tower of Hanoi

Play Tower of Hanoi ↗

Game guide · SZLYSY56

Tower of Hanoi: how a round works

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. The game area remains available above the explanation. Choose three to eight discs. All discs begin on the left tower.

One puzzle with adjustable disc count from three to eight. Disc counts are settings, not separate game entries. Undo is available; refreshing restarts.

Take a closer look while playing

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. Try the rule on the board, then read the next instruction.

The purpose of your moves

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. Start a new round when you are ready to try again.

How to proceed

  1. Choose three to eight discs. All discs begin on the left tower.
  2. Select the source tower, then the destination tower. Only the top disc moves.
  3. An empty tower accepts any disc; an occupied tower accepts only a smaller disc than its top disc.
  4. Use Undo to reverse a move. Complete the puzzle when the right tower holds the whole stack.

How to interact with the game

Use the controls beside the game rather than guessing the rules. 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.

Follow the example

Use the controls beside the game rather than guessing the rules. Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves.

Pay attention to this rule

Take a moment to check the current turn. Only the top disc can leave a tower. Moving a large disc onto a small disc is rejected. Try the rule on the board, then read the next instruction.

Clarifying the way this game works

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. No download or player account is required.

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. Use the labelled controls for your next action.

On this page, can you show an example?

Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves. The game is played locally in your browser.

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. The game is played locally in your browser.

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. The game is played locally in your browser.

How many people can play here?

Solo. This is local browser play, not internet matchmaking. The worked example offers another way to follow the 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. Use the labelled controls for your next action.

For this game, can I move several discs together?

No. One top disc moves at a time. The instructions above use these same rules.

When I start, what does Undo do?

It restores the immediately previous puzzle state and move count. Use the labelled controls for your next action.

For this game, 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.

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