5
3
9
4
6
2
7
4
3
6
1
5
7
2
9
3
4
2
9
8
6
1
5
1
6
8
4
2
12-09-2012......hard
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com