Langer's Sudoku Assistant

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