Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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