Langer's Sudoku Assistant

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