Play Sudoku online: relax with number puzzles

Whether Sudoku can train the brain’s performance has not been scientifically proven. However, what all Sudoku fans will confirm: The number puzzles are relaxing. And many puzzle lovers speak of great satisfaction when all the boxes have been filled in correctly.

On average, a Sudoku puzzle takes a quarter of an hour. In tricky cases it can be an hour. If you want to test it: Our daily sudokus are available in different levels of difficulty.

Sudoku comes from Japan. Or not?

That the popular number puzzle comes from Japan is a widespread assumption – but not entirely correct. Again and again early forms of similar puzzles are mentioned as forerunners. However, the first documented publication of a Sudoku is the american Howard Garns attributed.

The riddle was called the riddle book when it was first published in 1979 Dell Pencil Puzzles & Word Games nor number place. Apparently, the puzzles weren’t a hit in the US back then.

Why Sudoku is not always called Sudoku in Japan

However, the puzzle boxes only achieved their international breakthrough when the Japanese publisher Nicoli started spreading number puzzles in the mid-1980s. This is where the “Number Places” were named Sudokuwhich is the abbreviation for “Sūji wa dokushin ni kagiru” and means “number must appear only once”.

Foreign visitors took the puzzles with them and made them known and loved worldwide as Sudoku. The publisher had this abbreviation protected by copyright. In Japan itself, Sudokus are often called “Number Places”, as in the American original. In most other countries, as well as in Germany, you cannot protect the names of puzzle shapes by copyright.

Sudoku online on our puzzle site

Experienced Sudoku fans need an average of 15 minutes for a puzzle. On a higher level of difficulty, however, a game can last for hours. On our puzzles page we have sudokus in the three stages easy, medium and difficult.

If you need help with the rules or tips: There are hints and various setting options under the small gear symbol above the puzzle box. Have fun solving!

This is our puzzle page

More articles from this category can be found here: Games