Tower of Hanoi for Google Sheets™ by Avi Megiddo is a live recursion simulator. This Add-on transforms your spreadsheet into a dynamic recursion playground. Designed for teachers, students, and self-learners, this visual simulator allows you to explore the logic and flow of recursive problem-solving—live, one move at a time.
Key Features ✅ Clean and colorful simulation of Tower of Hanoi (2–10 disks)
 ✅ Visual animation of recursive disk moves using cell formatting
 ✅ Custom kill switch to stop large stacks in real-time
 ✅ Sidebar interface for tower size and simulation control
 ✅ No scripting experience required — just use the sidebar and watch
 ✅ Perfect for IB MYP Design, AP Computer Science, and self-guided study
How It Works
Launch the sidebar from the custom menu


Choose a tower height (e.g., 3, 5, or 8 disks)


Click “Create Tower” to generate the pegs and disks


Click “Solve Tower” to begin the live recursive simulation


Watch as each move is animated in sequence — no steps skipped


Built with Google Apps Script, this add-on helps students:
See recursion unfold in real time


Understand the flow of base cases and recursive steps


Build mental models of problem-solving in computational systems


Usage Ideal for:
Live classroom demos


Student self-exploration


Instructional design around recursion and algorithmic thinking


Educational Purpose Tower of Hanoi™ was created as a visual aid to deepen understanding of recursion and systems thinking. It’s 100% free to use for educators and students and will always prioritize transparency, simplicity, and clarity.