Langer's Sudoku Assistant

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

 

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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