Langer's Sudoku Assistant

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

 

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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