Langer's Sudoku Assistant

Invalid Sudoku!

Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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