Langer's Sudoku Assistant

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

 

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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