Description
Sudoku 9 x 9, from concentration to relaxation!
The challenge is to place the numbers 1 to 9 only once per row, only once per column and only once per box of 9 squares.
500 easy to very difficult grids!
The challenge is to place the numbers 1 to 9 only once per row, only once per column and only once per box of 9 squares.
500 easy to very difficult grids!