Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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