[1] https://www.huffpost.com/entry/kurt-vonnegut-board-game_n_21...
And someone on BoardGameGeek[1] says:
> A few years ago, after hearing about Mr. Vonnegut's GHQ game, I attempted to get access to the appropriate boxes at the Indiana Library. Failing that, I tried to persuade a fellow wargamer who lived closer to Bloomington than I did to go and have a peek for me. And failing that, I applied to the library for photocopies of the essential documents.
> This was all in aid of an article for Simulacrum.
> The library advised me that they could not photocopy any information from Mr. Vonnegut's files without the approval of his lawyer-cum-copyright holder/protector. So I contacted the lawyer, who wasn't aware that the files contained a game designed by Mr. Vonnegut. Then I never heard from him again.
> So I abandoned the effort to get, if nothing else, a copy of the rules. Perhaps someone here who is near the library could stop by and check it out.
> John Kula
And later:
> John Kula's enquiry got as far as the librarian at the Lilly Library at IU. She pulled the folder and said that it contained about "100 pages of different documents about the game, including multiple drafts of the game instructions, letters and notes about the game, etc.". So it appears that Vonnegut did do a bit of thinking and testing of the game, for sure.
Someone also mentions that an "interpretation" of the rules is available at generalheadquartersgame.com, but that URL is gone and even archive.org doesn't seem to have a single copy of it. It's also unclear what exactly that "interpretation" was based off anyway.
[1] https://boardgamegeek.com/thread/883385/kurt-vonneguts-board...