Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 6 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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