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Why Sudoku is not just a number puzzle.
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July 18, 2025
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Mathieu Labrecque

Sudoku is not just a numbers game

By Christina Iverson

“People keep telling me that Sudoku isn’t a numbers game, even though it uses numbers. I’m confused. I’ve avoided it because frankly I don’t want to do math for fun. What do they mean?” — Anonymous

From Christina:

Sudoku is a logic game that just happens to use numbers. What does that mean? That you could take the numbers in a Sudoku board and replace them with any other set of nine things, and doing so wouldn’t change anything about the gameplay. For instance, if you wanted, you could replace the digits with nine colored circles, as I’ve done below (1=