Langer's Sudoku Assistant

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

 

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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