Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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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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