Langer's Sudoku Assistant

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