Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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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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