Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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