Langer's Sudoku Assistant

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