Langer's Sudoku Assistant

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