International Sudoku Day – September 9, 2022, history, quotes, tweet International Sudoku Day takes place, of course, on September 9 (9/9). Sudoku enthusiasts will no doubt notice the date’s symbolism. The goal of the Sudoku game is to fill a 9×9 grid so that each column, row, and 3×3 sub-grid contains all the digits from 1 to 9. So nine-nine is the natural choice for the day of celebration. It’s time to get your brain into gear because although today is most definitely a cause for celebration, some hardcore logical…
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