More accurately: a GPT derived DNN that’s been specifically trained (or fine-tuned, if you want to use OpenAI’s language) on a dataset of Othello games ends up with an internal model of an Othello board.

It looks like OpenAI have specifically added Othello game handling to chat.openai.org, so I guess they’ve done the same fine-tuning to ChatGPT? It would be interesting to know how good an untuned GPT3/4 was at Othello & whether OpenAI has fine-tuned it or not!

(Having just tried a few moves, it looks like ChatGPT is just as bad at Othello as it was at chess, so it’s interesting that it knows the initial board layout but can’t actually play any moves correctly: Every updated board it prints out is completely wrong.)