Langer's Sudoku Assistant

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