Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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