6
3
7
2
7
1
9
2
2
3
8
1
6
8
4
7
5
7
9
2
1
5
6
3
4
2
9
3
3
8
4
1
7
6
9
5
23-12-2017......easy
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com