Langer's Sudoku Assistant

Invalid Sudoku!

Column 9 is invalid. Go back and make a different choice.

 

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

 

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