Langer's Sudoku Assistant

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