Can You Do The Knight's Tour?

      Lately I have been trying to solve the knight's tour.  To do this, one must
move the knight around the board touching each square once and only once.
It can be done on a 5x5 board (hint, start in the center square).  I understand
most of the greats of chess have no problem with this puzzle but it isn't easy.

I used to be able to do a knight's tour blindfolded from any square on the board. Some of the solutions are loops, and if you learn one of those it's not that hard to do. It's been a few years since I last tried it though, and I'm not sure I could do it these days.

The trick is to land on the same square that you started on. But no, I can't do it, not without getting very board...

The above example is from Wiki, and is closed, i.e. the Knight finishes by attacking the same square from which it started. And it's a pretty pattern.

ED.