The kid is in over his head and he needs to know that he isn't at a pro level for beating one grandmaster who i'm pretty sure had his little brother play. He thinks he is diamond-esque player, but he is in gold. He is in gold because he is a gold-esque player. He is high on the thought that he is good because he beat a GM. That is all. He needs to have some sense smacked into him. He needs to come back to reality.