Langer's Sudoku Assistant

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

 

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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