Langer's Sudoku Assistant

Invalid Sudoku!

Column 8 is invalid. Go back and make a different choice.

 

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

 

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