This is useful for dispelling the hype around ChatGPT and for demonstrating the limits of general purpose LLMs.

But that's about it. This is not a "win" for old school game engines vs new ones. Stockfish uses deep reinforcement learning and is one of the strongest chess engines in the world.

EDIT: what would be actually interesting would be to see if GPT could be fine-tuned to play chess. Which is something many people have been doing: https://scholar.google.com/scholar?hl=en&q=finetune+gpt+chess