Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 1 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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