Langer's Sudoku Assistant

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

 

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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