Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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