Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 6 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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