Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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