Earlier quoted context omitted.
Anything you put "work" in to (like serious hobbies, sports etc.) can still be considered a hobby / leisure. Lots of competitive low end golfers, tennis players, basketball players etc. I've found it one of the best outlets from work quite frankly, to have another committed side interest that requires dedication and commitment. You should try it :-)
When I studied I worked at a grocery store part time, and found it a very good fit as it was mostly mechanical work requiring very little mental capacity. After I graduated and got a programming job, I found that my hobbies took a big hit, as they all mostly required similar mental focus as work. So these days I generally do a lot less mentally taxing things. Sure I'll have bursts of creativity, but most days my brai…
Playing a sport is completely different from playing chess, the physicality of a sport is at least different type of challenge.