How to play

To play sudoku you have to fill each cell of the grid with a number between 1 and 9. The catch is you cannot have the same number in the same row, column or 3x3 grid that you can see above.To enter a number, click on the blank space you want to place a number which will change colour and then press the button with the number you would like to enter. It will go red if incorrect and golden if correct.Your progress is saved to your device so you can leave and pick up from where you left off. Alternatively, you can restart the current game or start a new game using the labelled buttons above. You may also want to print the sudoku grid off.