Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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