Sudoku Generator

Select a size, difficulty, and toggle on or off special rules to generate a sudoku puzzle. This can be a very slow generator, especially with the 16x16 setting so be prepared to give it up to a minute to generate. Difficulty ranges from 1-5 with 1 being easiest and 5 being hardest, however even 5 may be easy to an experienced player.

Special Rules






(Turn on background graphics in print settings in order to see diagonal lines)