Soduku
Origin

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origin

You may think that the origins of Soduku are Japanese, and while the word originates from a Japanese phrase the game actually comes from America.

Soduku was first published in the late 1970s in a magazine published by Dell. Soduku was origianally called "number place" in Dell Pencil and Word Games.

The name of the game comes from Japanese after the game was published in the paper Monthly Nikolist in 1984. The puzzle's full name was "Suuji wa dokushin ni kagiru" which means "number is limited only single (unmarried)" however it was shortened to Soduku.