Langer's Sudoku Assistant

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

 

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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