Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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