Get in touch

Bug reports, mistakes in a guide, classroom requests and accessibility problems are all welcome — a board that behaves wrongly, with the link to the position, is the most useful thing you can send.

Email: hello@towerofhanoionline.com

Used only to reply to you — never added to a mailing list or shared. See the privacy policy.

What is worth writing about

• A bug on the board. Tell us the browser and device you were using and what you did just before it went wrong. If you had made a move, press Copy link under the statistics and paste it in — it reopens the board in exactly that position.
• A mistake in a guide. If something in How to Play or Strategies is wrong or unclear, we would rather know than not.
• Classroom use. If you teach with this puzzle and need something the site does not do yet, say so — teacher requests move up the list.
• Accessibility. The board is built to work with a keyboard and a screen reader. If it does not work with yours, that is a bug and we want the details.

What we cannot help with

We do not do homework, and we cannot debug your Tower of Hanoi assignment for you. The algorithm page explains the method the solver on this site uses, which is the same method most courses are asking for.