Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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