Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

Start Over

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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