Hard Level 9 (28 clues)
Puzzle URL:
http://www.sudoku99.com/sudoku9x9/puzzle/998913/
Website:
www.sudoku99.com
5
1
8
9
2
6
4
7
1
2
7
8
6
3
1
2
8
7
6
8
1
3
3
9
1
4
9
8
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