Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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