Uhhhmmm, I don’t want to be intrusive, but how exactly does one use small beads to cheat at chess? I’m trying to figure this out, …but I keep losing anyway.
It's important to remember that he is certainly still very good at chess, even if he cheated in some games. He wouldn't need to have every move given to him, it might even be enough to give him a single signal that there is a non-obvious great move in a current position. Even just knowing that would probably be enough for him to find it by himself.
That's a good point. You wouldn't need to send an entire move. If you simply sent a message indicating which piece is the best to move, the player probably can find the place to move that piece.