Langer's Sudoku Assistant

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