Langer's Sudoku Assistant

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

 

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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