Harry Potter and the Philosopher's Stone/Harry Potter and the Sorcerer's Stone - Chess Mess
In the Chapter "Through the Trapdoor," Ron, Hermoine and Harry must play their way across a chess board. Ron says he'll be a knight. Later, he says he'll move one space forward, the queen will take him and Harry checkmates the king. Ron can't move one space forward if he's a knight; they only move in an L shape.
You just need the book
on 12-27-1999 and