Langer's Sudoku Assistant

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