Because it doesn’t have any understanding of the rules of chess or even an internal model of the game state, it just has the text of chess games in its training data and can reproduce the notation, but nothing to prevent it from making illegal moves, trying to move or capture pieces that don’t exist, incorrectly declaring check/checkmate, or any number of nonsensical things.

I don’t think people are nasty enough to him. Until he’s a fucking hermit, too ashamed to show his face in public again because he knows everyone despises him, we need to be nastier.

Silent? I fucking wish you idiots were silent.