Sudoku [ Difficulty level 5 ]
6
8
8
7
4
7
8
8
7
1
9
1
3
6
3
1
3
7
9
8
Solution
3
9
2
6
7
1
4
8
5
1
8
6
5
9
4
2
3
7
4
5
7
2
8
3
1
6
9
2
4
5
9
6
8
7
1
3
7
6
3
1
2
5
8
9
4
8
1
9
4
3
7
6
5
2
6
2
8
3
4
9
5
7
1
9
7
1
8
5
2
3
4
6
5
3
4
7
1
6
9
2
8
