Langer's Sudoku Assistant

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