Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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Take any Sudoku puzzle you are having trouble with -- or any one at all -- and enter the initial values. With each entry the proscribed options are eliminated for you

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