Langer's Sudoku Assistant

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

 

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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