Langer's Sudoku Assistant

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

 

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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