Fool's Mate is the name given to the quickest possible checkmate in a game of chess. It occurs after just two moves by each player, where White makes poor opening moves, allowing Black to deliver checkmate. The sequence typically involves White moving their pawn to f3 and then to g4, creating a vulnerable position. In this scenario, Black can checkmate by moving their queen to h4. This move puts the White king in check, and there are no available moves to escape the threat, resulting in an immediate loss for White.