Langer's Sudoku Assistant

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