3. Approximately 10 days later, I will release a full chess engine based on GPT4, whose code/prompts anyone will be able to inspect and run against any other chess engine. GPT4's "performant output" will beat every other chess engine in existence in a tournament of any size.

releases code during that month and anyone is able to use it to play a single game of chess against a chess engine. At end of 2024, "[Not by end of 2024]" resolves YES if no month qualifies. Resolves Other if a month is not in the table but would qualify if added.

For this market, it doesn't have to play chess well. It just has to run and always make legal moves. "Always" means "when observed by 

 in testing this market", not "literally always": So if you find an example on Twitter of it making an illegal move it won't necessarily resolve this market NO; but 

 getting an illegal move immediately resolves NO.

I won't be studying his code at all, except the bare minimum to get it running. (if needed) So he can include other chess engines, write his own custom engine, call out to GPT-4, etc.