Langer's Sudoku Assistant

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