Langer's Sudoku Assistant

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