@ricdeh and @Luvs2Spuj, it looks like you are both correct since:

1978: Nona Gaprindashvili became the first female Grandmaster

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Anyone can enter the ‘mens’ league

Not if you are a woman that wants to go for the Grand Master title. In that case you have to join the Woman Grandmaster (WGM).

Reasons for this are complicated and largely unknown

Really?
Well, systemic sexism is complicated, no doubt. You have to decide tho. Complicated or unknown? Cause it can’t be both.

Personally, I both loved and hated the idea at first. The more I think about it, the more I find it valuable in some way.

Thanks you for saying so and spending time thinking about this. The way I see things, the point here is to take a glance at how systemic sexism works through an art exhibit. That is, if you dare.

Other examples that would illustrate what I mean in relation to systemic sexism, would be:

• It is not sexism if a dude is not allowed in a lesbian bar. They are a minority group, and just want to do their thing.
• It is sexism when a woman is refused to apply for a grandmaster chess tournament because of tradition/culture/etc. We live in a world that women are still not allowed participate in these tournaments.

[edit: the strikethrough, cause apparently it’s not the case. There are women tournaments (only for women) and open ones (open to all). I think the example still stands, as an illustration to what I meant]

Blowback: How Israel Went From Helping Create Hamas to Bombing It

If two people agree to a debate, but one of them participates in bad faith

That part was enough for me. Under these circumstances, not even a conversation can take place let alone a debate. Try to protect yourself from toxic people by not wasting your time with them. I know it’s easier said than done cause I’m trying to recover from a similar situation.