Langer's Sudoku Assistant

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