Langer's Sudoku Assistant

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