Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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