The game of Go is...
The game of go is...
Apparently the International Go Federation capitalizes it. Its dictionary entry doesn't appear to be (from what I have seen). It seems to fit the definition of a proper noun as it isn't preceded by an article (such as "the" or "an").
So which is it?
Also, where does that put checkers, chess, basketball, football, etc. They are never (or at least not regularly) capitalized, yet they seem to have the same characteristics.
I predict the argument is going to be that Monopoly is capitalized because it is a brand and go should not be capitalized since it is not a brand and it is not referring to a specific instance of anything. Is that correct?