Langer's Sudoku Assistant

Invalid Sudoku!

Column 1 is invalid. Go back and make a different choice.

 

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

 

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