Langer's Sudoku Assistant

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