Langer's Sudoku Assistant

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

 

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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