Langer's Sudoku Assistant

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

 

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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