Langer's Sudoku Assistant

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

 

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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