Langer's Sudoku Assistant

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