Langer's Sudoku Assistant

Invalid Sudoku!

Column 9 is invalid. Go back and make a different choice.

 

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

 

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