Game guide · LZWEIDAO
An introduction to playing Tower of Hanoi
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. Try the rule on the board, then read the next instruction. 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.
Try a more deliberate round
An empty tower accepts any disc; an occupied tower accepts only a smaller disc than its top disc.
Understand the aim
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.
How a round unfolds
- 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.
Input guidance
A careful first move helps you understand the round. Tap the source tower and then its destination. Tap the selected tower again to cancel the selection. Keep the goal in mind before your next move.
An example to follow
Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves. Keep the goal in mind before your next move.
Pay attention to this rule
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.
If you are unsure
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. Scores here do not represent cash or prizes.
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. You can start a new round from the game controls.
For this game, can you show an example?
Three discs can be transferred in seven legal moves. Four discs need at least fifteen moves. A new round resets the current game.
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. A new round resets the current 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.
When I start, how many people can play here?
Solo. This is local browser play, not internet matchmaking. The game is played locally in your browser.
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.
On this page, can I move several discs together?
No. One top disc moves at a time. A new round resets the current game.
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.
On this page, 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.
