Langer's Sudoku Assistant

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

 

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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