Langer's Sudoku Assistant

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

 

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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