Langer's Sudoku Assistant

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

 

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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