Play Medium Sudoku Online

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