Play Medium Sudoku Online

2
6
9
3
1
7
8
6
7
1
1
9
5
4
8
6
3
4
2
5
8
5
3
7
6
1
9
6
2
7
3
4
4
1
6
2
8
6
5
3
9
1
2
3
4
5
6
7
8
9
Go up