Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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