3
2
7
6
1
9
7
3
6
6
5
7
5
4
6
8
1
4
9
9
8
7
2
8
1
5
6
9
24-07-2018......hard
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com