Langer's Sudoku Assistant

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

 

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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