Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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