Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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