Hard Level 9 (28 clues)

Puzzle URL: http://www.sudoku99.com/sudoku9x9/puzzle/752074/
Website: www.sudoku99.com

6

2

4

4

8

6

5

1

2

6

8

7

9

5

1

2

4

5

4

9

5

3

1

4

8

8

6

3