Langer's Sudoku Assistant

Invalid Sudoku!

Column 5 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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