Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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