Langer's Sudoku Assistant

Invalid Sudoku!

Column 6 is invalid. Go back and make a different choice.

 

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

 

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