Sudoku is a puzzle that you solve with reasoning and logic. Fill in the grid with digits so that every row, every column and 3x3 box contain all of the digits between 1 to 9 within its squares. Each number can only appear once in a row, column or box.
1
8
2
4
7
1
8
6
7
4
7
8
4
6
1
6
3
7
3
4
9
6
2
8
5