Langer's Sudoku Assistant

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

 

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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