Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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