Langer's Sudoku Assistant

Invalid Sudoku!

Row 1 is invalid. Column 3 is invalid. The top left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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