Entering a number:
 • Select your square by clicking in it.
 • Click on one of the numbers under the puzzle.

Buttons:

 • Solution: Calculates and displays the solution of the current grid.
 • Check: Checks the consistency and soundness of the current grid.
 • Play: Plays the grid with various tips. You will be able to return to the input of your puzzle.
 • Home: Back to the home page of the mobile site. You will lose the seizure of your puzzle.
 • Switch to PC: Go to the PC version with the management of your puzzle.