As strange as some of our sports [football, NASCAR, monster trucks] must look to, say, Europeans, there's stuff going on over there that I'll never understand.

Exhibit A: chessboxing. It's a uniquely European hybrid of, yes, chess and boxing. You're probably wondering how this all works, Fortunately, we have a video:
[cbsnews.com]

Your guess is as good as mine as to how this all started. It has yet to get a foothold here in the US. But it's only a matter of time...