Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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