Instructions:
Select between Easy, Normal and Hard.
More difficult puzzles means less gained digits!
Your goal is to take into account these digits
and then fill the 9×9 grid so that each column, each row
and each of the nine 3×3 mini-grids
contains all digits from 1 to 9.
The timer helps you keep track
of time while you are solving the puzzle!
The hint button gives you one extra digit
to help you but it adds 1 minute to the timer.
And what does the solve button do? Well it solves the Sudoku!
