Langer's Sudoku Assistant

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