Langer's Sudoku Assistant

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