Langer's Sudoku Assistant

Invalid Sudoku!

Column 1 is invalid. Go back and make a different choice.

 

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

 

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