Video games are good, but Magic the Gathering is the best general IQ test I've ever seen.
(Yes, it's available in video game form, MTG Arena is one of the better F2P games out there. The game UX handles more of the rules for you, which limits some IQ-testing, but still a good translation.)
How quickly people pick up the game, how quickly they achieve competitive competency, and whether they can reach the highest level of mastery are all good illustrations of IQ.
Unlike Chess, Go, or Poker, which are purely abstract. MTG has a large amount of language skill involved. Rules text and card text are best interpreted as legal texts. It tests Bayesian reasoning, unlike purely deterministic games. There is a wide skillset to test, from deck construction limited play to reading opponents. The game is constantly refreshed with new cards, sets, and rules to learn.
Was "LessWrong" always meant as a gradient descent pun?
Did Eliezer (or whoever coined the name) intentionally choose it as an implicit machine learning reference? Or is this just a case of convergent evolution between model optimization and rationality?
It'd be approximately equally funny either way, so I'm not sure which outcome I prefer.