Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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