Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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