Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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