Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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