kylemeister wrote on 03/13/20 at 21:38:28:
I have a recollection that Ljubojevic prepared and attempted to play 2. Nf3 d6 3. d4 cd 4. Qxd4, only to be told it was against the rules.
Funnily enough that's how I remembered it too, but it was Salov who tried to play
4 Qxd4 against Ljubo in round 6.
What I didn't know until I got the tournament book recently was that Salov - who won the event - was a late replacement for Kasparov who dropped out. Also, Polugaevsky apparently considered trying to get Fischer to step in for Gazza at one point.
The tournament book confirms the event was not rated.
Piket analyses most of the games in the book. He was also on the appeals committee.
The tournament organiser was Joop van Oosterom and Piket used to work for him iirc. That's probably why he was so involved.
The really interesting question given van Oosterom seems to have been the primary organiser with some French involvement - and Polugaevsky being resident in Paris at the end of his life - why did they hold the tournament in Buenos Aires?
I've not seen any explanation in the book yet, but there's a lengthy introduction so maybe there's something in there.