Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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