Langer's Sudoku Assistant

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