Langer's Sudoku Assistant

Invalid Sudoku!

Column 5 is invalid. Go back and make a different choice.

 

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

 

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