Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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