Su Doku
Hard 7 - Answer
2
7
6
1
5
8
4
9
3
1
5
4
3
9
6
2
8
7
3
8
9
2
4
7
1
6
5
7
1
8
6
3
4
5
2
9
9
6
2
7
8
5
3
1
4
4
3
5
9
2
1
6
7
8
8
2
1
5
7
3
9
4
6
6
4
3
8
1
9
7
5
2
5
9
7
4
6
2
8
3
1
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