A Japanese puzzle company created the modern version of Sudoku in 1986. The name Sudoku actually means single number. It wasn’t until 2005 that this game became a success internationally. The first country, besides Japan, to run a printable Sudoku was England in November of 2004. Shortly after that, the game made its way to the United States when a New Hampshire newspaper a printable Sudoku. It was not long after, that the puzzle game started reaching new heights of success and popularity.
As with anything that becomes an overnight success, there are going to come variations of that particular product. Sudoku is no stranger to this. There are some 12 x 12 grids, 16 x 16 grids, and the biggest to date, a 25 x 25 grid. There are even some versions of printable Sudoku that combine it with other popular Japanese puzzle games.
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