Langer's Sudoku Assistant

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

 

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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