Langer's Sudoku Assistant

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

 

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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