Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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