9
6
4
5
8
3
5
9
2
7
6
2
5
8
8
6
7
2
6
4
3
7
1
4
1
3
20-02-2017......hard
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com
