Yes, but it also completely invalidates the measurement of a 1400 elo rating. By comparison, any player making an illegal move is forfeiting the game, almost all people from ~300 elo can play without making illegal moves, chatgpt cant.
I don't believe you. Are you giving those people a restricted move set (i.e. computer chess, where it will _only_ allow legal moves)? Because if you give people an unrestricted board, I _guarantee_ you people will make lots of illegal moves.
Me: Moves pawn
Opponent: You can't do that, you exposed your king to check.
Me: Oops, sorry, you're right.
In Chess.com, you absolutely can attempt an illegal move, and many players do, and you will not get punished for it, so chatgpt is better then a 1400 human player.
> So whenever it wanted to make an illegal move, it resigned.
You:
> By comparison, any player making an illegal move is forfeiting the game...
By comparison indeed.