Langer's Sudoku Assistant

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