5 7
9 8 1 6
4 1
7 2 5 4
8 9
3 5 9 6
2 3
2 1 4 6
5 3
14-04-2016......difficile
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com
www.daily-sudoku-puzzle.com