Medium Level 7 (30 clues)

Puzzle URL: http://www.sudoku99.com/sudoku9x9/puzzle/0335187/
Website: www.sudoku99.com

4

5

1

8

7

2

6

9

4

3

6

1

2

6

1

7

8

4

9

4

1

9

5

7

1

3

6

4

9

7