Sudoku is a logic-based number puzzle. The goal is to fill the 9×9 grid so that each column, each row, and each of the nine 3×3 subgrids contains all of the digits from 1 to 9.
- Click an empty cell to select it.
- Use the number pad to enter a digit (1-9).
- Use the delete button (⌫) to clear a cell.
- Each number must appear exactly once in each row, column, and 3x3 box.
- Click "Check Solution" to see if you've solved it correctly!