Langer's Sudoku Assistant

Invalid Sudoku!

Column 7 is invalid. Go back and make a different choice.

 

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

 

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