Langer's Sudoku Assistant

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

 

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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