Here are Sudoku grids for the children, with 4 difficulty levels, and for each level 64 different grids.
You can check the validity of your grid during the game by clicking on the 'Check' button. For each grid, the solution is unique !
Note :
Each time a grid is displayed, its digits are permuted randomly (for instance the 3 replaces the 2, the 2 replaces the 1, and the 1 replaces the 3), so a grid never appears twice in the same way, but always keep exactly the same difficulty.
