Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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