Langer's Sudoku Assistant

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

 

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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