Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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