What keeps players from putting the current board position into a chess simulator, determining the best move, and coming back and playing that?
Nothing can keep him, but if he does this often he can be kicked from the site.
Chess.com analyses suspects of cheating correlating their moves with those of the softwares (Fritz, Rybka, etc). If the games are too similar, the cheater is out.
Of course, if someone rarely uses those resources, it is not so easy to proof he really cheated.
Random question from a new chess player.
On these long games that are ongoing, I assume you are referring to chess where you play a move and the next player has several hours or days to play his response to that move? What keeps players from putting the current board position into a chess simulator, determining the best move, and coming back and playing that? It doesn't seem like rating would mean much if this is the case.
Sorry if this is unrelated to the current situation.
What stops a player from cheating online? The question should be, what makes a player cheat online? From my experience, it doesn't happen much.