Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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