Langer's Sudoku Assistant

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