Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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