Langer's Sudoku Assistant

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

 

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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