Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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