Hard Level 9 (28 clues)
Puzzle URL:
http://www.sudoku99.com/sudoku9x9/puzzle/632003/
Website:
www.sudoku99.com
5
6
3
1
9
4
2
7
6
2
8
7
5
6
8
1
4
9
2
3
2
4
5
8
3
1
6
1
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