Langer's Sudoku Assistant

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