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