Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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