Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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