Langer's Sudoku Assistant

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

 

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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