Langer's Sudoku Assistant

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

 

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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