Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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