Sudoku is a legend among puzzles. Play the game online and solve challenges of any difficulty: from relaxing to truly hardcore. Play for free on mobile or computer, save your progress, set personal records, and return to unfinished grids at any time. Minimal rules — maximum fun for the mind!

Fill the 9×9 grid with numbers from 1 to 9 so that there are no repetitions in each row, each column, and each 3×3 box. Start with the most obvious cells: look for numbers that appear frequently and eliminate impossible options. Use notes to mark candidates, erase mistakes, and undo moves if necessary. Hints can be helpful if your logic runs out.