Langer's Sudoku Assistant

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