Easy Level 6 (31 clues)

谜题网址: http://cn.sudoku99.com/sudoku9x9/puzzle/264109/
网站: cn.sudoku99.com

9

2

3

1

5

8

2

4

7

3

2

5

7

6

1

4

3

2

1

5

3

7

8

2

4

6

1

5

8

6

9