Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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