Langer's Sudoku Assistant

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

 

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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