Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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