Langer's Sudoku Assistant

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