What happens while Kevin is showing grim hoe to play the 3-D chess?

While Kevin is showing Grim how to play 3-D Chess, he explains the unique rules and strategies involved in navigating the multiple layers of the board. Grim, initially confused, struggles to grasp the complexities of the game but becomes increasingly intrigued as Kevin demonstrates various moves and tactics. Their interaction highlights not only the challenge of learning a new game but also the camaraderie that develops through shared experiences. Eventually, Grim starts to understand the nuances, leading to a more engaging and enjoyable game.