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

 

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