Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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