Langer's Sudoku Assistant

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

 

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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