In this game, you need to fill a 9×9 grid with numbers so that each column, row, and small square contains digits from 1 to 9. You can use hints during the game. There are three difficulty levels available: easy, medium, and hard. sudoku 9x9 is a arcade game and coin-op style and retro game that you can play for free on DooDoo.Love. This responsive gameplay and cross-platform game and mobile-friendly game offers hours of entertainment and casual gaming and relaxing game. Play now and see why sudoku 9x9 is one of the most popular games on DooDoo.Love!