Hard Level 9 (28 clues)

Puzzle URL: http://www.sudoku99.com/sudoku9x9/puzzle/459898/
Website: www.sudoku99.com

6

9

2

4

7

9

8

1

5

1

8

5

7

4

3

4

8

6

7

6

2

5

2

1

9

9

3

5