Langer's Sudoku Assistant

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

 

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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