Langer's Sudoku Assistant

Invalid Sudoku!

Column 9 is invalid. Go back and make a different choice.

 

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

 

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