Hard Level 10 (27 clues)

Puzzle URL: http://www.sudoku99.com/sudoku9x9/puzzle/0896976/
Website: www.sudoku99.com

3

7

8

4

7

5

2

3

1

6

4

5

1

7

1

2

6

1

3

5

3

7

6

8

2

9

4