Langer's Sudoku Assistant

Invalid Sudoku!

Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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