As for the second part of the 'Multi-Millionaires' post, which promised a Saint Louis Chess Club 9LX event, it ended too late for this current post. More news next month...
GM Caruana won the event, 0.5 points ahead of GM Nakamura, who was 1.5 points ahead of the rest of the field. The full crosstable is shown below.
2024 Champions Showdown: Chess 9LX
(uschesschamps.com)
For a report on the last day of the three-day event, see Fabiano Caruana wins Chess 9LX Showdown in Saint Louis (chessbase.com; Carlos Alberto Colodro). At the end of that report, tags ('Topics') lead to reports on the previous rounds and links lead to final round reports for the same event in previous years.
For last year's final post on the 2023 event, see 2023 Champions Showdown, Videos (September 2023). For the Saint Louis Chess Club's video playlist for the 2024 event, see 2024 Chess 9LX (youtube.com).