Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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