Langer's Sudoku Assistant

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