Langer's Sudoku Assistant

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

 

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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