Chess is a specific classic board game.
And we have a tag for it: chess.
It has only 11 questions.
What should we do with it?
I think it's a good tag and we should keep it.
It is a board game, but it is also a board game that is very commonly adapted as a video game, and there are lots of algorithms and techniques for doing so efficiently (particularly within the domains of board representation and AI).
I think it's quite reasonable to expect that somebody who is an expert at writing chess AI or solvers, or somebody interested in finding questions and solutions about such problems, would be the kind of person to make chess a favorite.
I don't think the current description of the tag is worthwhile though. It describes the game in detail, but not how the tag should be used in the context of Game Development.