Langer's Sudoku Assistant

Invalid Sudoku!

Column 7 is invalid. Go back and make a different choice.

 

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

 

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