Langer's Sudoku Assistant

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

 

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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