Langer's Sudoku Assistant

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

 

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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