Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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