The sudoku myth: Why your favourite ‘Japanese’ puzzle is actually European

Today, Sudoku is one of the most popular puzzle games in the world, found in newspapers, puzzle books, and mobile apps. But the number puzzle we know today didn’t originate in Japan as many people assume. Its journey spans centuries, evolving from mathematical puzzles in Europe to a global brain teasing phenomenon.

Roots in 18th Century Switzerland: The origins of Sudoku can be traced back to the work of Swiss mathematician Leonhard Euler in the 1700s. Euler created a concept called Latin Squares, where numbers were arranged in grids so that no number repeated in any row or column. This idea laid the mathematical foundation for Sudoku puzzles centuries later.

The First Modern Puzzle Appears in the US: The puzzle resembling modern Sudoku first appeared in 1979 in the American puzzle magazine Dell Pencil Puzzles and Word Games. It was created by puzzle constructor Howard Garns and was called “Number Place.” The rules were similar to today’s Sudoku: fill a grid so that each number appears only once in every row and column.

Japan Gives It the Name “Sudoku”: The puzzle became hugely popular in Japan during the 1980s when it was published by the company Nikoli. They renamed it Sudoku, which roughly translates to “single number.” The name reflects the rule that each number should appear only once in each row, column, and box.

A New Puzzle Format Emerges: Japanese publishers refined the puzzle format by introducing the now-famous 9×9 grid divided into nine smaller 3×3 boxes. This structure made the puzzle both challenging and elegant, helping Sudoku stand out among other logic games.

Global Explosion in the 2000s: Sudoku became a worldwide sensation in the early 2000s after it was introduced to British newspapers by puzzle expert Wayne Gould. In 2004, the puzzle appeared in The Times, sparking a global craze that quickly spread to newspapers across Europe, Asia, and the Americas.

Sudoku in the Digital Age: Today, Sudoku has moved beyond newspapers into digital platforms. Puzzle apps like Sudoku.com allow millions of people to play daily. With variations, competitions, and world championships, Sudoku continues to challenge puzzle lovers and remains one of the most beloved logic games in the world.