Langer's Sudoku Assistant

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

 

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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