Play Chess Better

I've always been one of those "intermediate" (cough-cough) chess players. I lost interest after I won my first game against my father (who is a big chess player). I suspect he let me win to try to encourage me. It was years before I played against him again. His revenge is that my son is now exactly like me, and driving me nuts in similar ways.

Personally I prefer backgammon or Go. Still, this link contains some good principles for general play.