Level Standard Hard Expert New puzzle Restart Undo
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THE ESSENTIALS How to play Move the complete stack from Tower 1 to Tower 3, keeping smaller discs above larger discs. Only the top disc of a tower can move. Place it on an empty tower or a larger disc. Tower 2 is a working space. A temporary move away from Tower 3 can be essential. The theoretical minimum is 2 to the power of the disc count, minus one: 15 moves for Standard, 31 for Hard and 127 for Expert. You do not need a minimum-length route to finish. Controls Select a tower holding a disc, then select its destination. Select the source again to cancel. Use Tab to reach each tower and Enter or Space to select it. An illegal placement leaves the stack and move counter unchanged. Undo reverses one accepted move. Restart restores the starting stack; changing difficulty starts the chosen disc count. Good to know This is the familiar three-tower disc puzzle, independently implemented here; we do not claim to have invented its rules.
The starting arrangement is fixed for each disc count. There is no shuffle button pretending to create a different puzzle.
The move counter describes the current route. Undo returns it to the previous route state, and no result is sent to a leaderboard.