Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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