Langer's Sudoku Assistant

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