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.

 

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

 

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