Langer's Sudoku Assistant

Invalid Sudoku!

Column 6 is invalid. Go back and make a different choice.

 

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

 

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