Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 9 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
2
5
   3
   6
9
   3
   6
9
   3
   6
9
2
    
6
9
    
6
9
    
6
9
    
6
9
3
    
6
9
    
6
9
    
6
9
7
8
4
6
4
4
2
9
1
3
 
6
9
 
6
9
 
6
9
 
6
9
 
6
9
 
6
9
 
6
9
 
6
9
3
6
 
3
6
 
3
6
 
3
6
 
3
6
 
3
6
 
3
6
 
3
6
 
9
9
3
6
 
3
6
 
3
6
 
3
6
 
3
6
 
3
6
 
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
9
3
6
 
3
6
 
3
6
 
3
6
 
3
6
 
3
6
 
3
6
 
3
6
 
 
   6
9
 
   6
9
 
   6
9
4
 
   6
9
 
   6
9
 
   6
9
3
 
   6
9

 

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