Langer's Sudoku Assistant

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

 

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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