Langer's Sudoku Assistant

Invalid Sudoku!

Column 8 is invalid. Go back and make a different choice.

 

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

 

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