Langer's Sudoku Assistant

Invalid Sudoku!

Column 9 is invalid. Go back and make a different choice.

 

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

 

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