Donuts of Hanoi

About Donuts of Hanoi

The Donuts of Hanoi is a mathematical game or puzzle (based on Tower of Hanoi) consisting of three rods and a number of donuts of various diameters, which can slide onto any rod. The puzzle begins with the donuts stacked on one rod in order of decreasing size, the smallest at the top, thus approximating a conical shape. The objective of the puzzle is to move the entire stack of donuts to one of the other rods, obeying the following rules: Only one donut may be moved at a time. Each move consists of taking the upper donut from one of the stacks and placing it on top of another stack or on an empty rod. No donut may be placed on top of a donut that is smaller than it.

How to Play Donuts of Hanoi

Start Donuts of Hanoi and choose your difficulty or number range if the game prompts you. Read each calculation or problem carefully before selecting your answer. Work quickly but accurately — both speed and precision matter.

Controls

Use your mouse or touchscreen to choose the correct answers or enter simple responses.

Why Players Love This Game

Donuts of Hanoi turns number practice into an engaging activity, which is a harder balance to strike than it looks. The game loads instantly in the browser and works on both desktop and mobile without any installation or setup. Fans of puzzles games will recognise familiar mechanics here, presented in a clean and accessible format.

Skills You Can Practice

Donuts of Hanoi naturally encourages the development of counting, arithmetic, quick thinking, concentration and number recognition through its core gameplay.

Tips for Beginners

• Try playing without any calculator aids to build genuine mental math confidence.
• Challenge yourself to play at a harder speed or difficulty setting once the current level feels easy.
• Do not worry about getting every answer right at first — speed and accuracy come with repetition.
• Try to do the mental calculation first before looking at the answer options if available.