A bunch of these are just improper procedure: several who hit the clock before choosing a promotion piece, and one who touches a piece that cannot be moved. Even those that aren't look like rational chess moves, they just fail to notice a detail of the board state (with the possible exception of Vidit's very funny king attack, which actually might have been clock manipulation to give him more time to think with 0:01 on the clock).

Whereas the LLM makes "moves" that clearly indicate no ability to play chess: moving pieces to squares well outside their legal moveset, moving pieces that aren't on the board, etc.

Can a blind man sculpt?

What if he makes mistakes that a seeing person would never make?

Does that mean that the blind man is not capable of sculpting at all?

> Whereas the LLM makes "moves" that clearly indicate no ability to play chess: moving pieces to squares well outside their legal moveset, moving pieces that aren't on the board, etc.

Do you have any evidence of that? TFA doesn't talk about the nature of these errors.