Langer's Sudoku Assistant

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