Langer's Sudoku Assistant

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

 

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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