Can GPTs like ChatGPT-4 play legal moves and finish chess games? What is the actual Elo rating of GPTs? There have been some hypes, (subjective) assessment, and buzz lately from “GPT is capable of beating 99% of players?” to “GPT plays lots of illegal moves” to “here is a magic prompt with Magnus Carlsen in the headers”. There are more or less solid anecdotes here and there, with counter-examples showing impressive failures or magnified stories on how GPTs can play chess well. I...| blog.mathieuacher.com