Langer's Sudoku Assistant

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

 

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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