Langer's Sudoku Assistant

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

 

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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