Langer's Sudoku Assistant

Invalid Sudoku!

Column 3 is invalid. The top left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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