Langer's Sudoku Assistant

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

 

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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