Langer's Sudoku Assistant

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