Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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