Langer's Sudoku Assistant

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