› Game Play » Sudoku can be played using the keyboard, the mouse, or any combination of the two.
To select a cell, use the arrow keys to move the blue outline onto it.
To put a number in a cell, select the cell, and then press the number.
To remove a number from a cell, select the cell, and then press the Delete key, the Backspace, or the 0 key.
To select a cell, move your mouse over it and click.
To put a number in a selected cell, click on the center of the cell, and then click on the number you wish to input.
To remove a number from a selected cell, click in the center of the cell and then click Clear.
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