Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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