Langer's Sudoku Assistant

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