Pinochle Ploys is a card game that involves forming MELDS, which are combinations of cards that score points. MELDS consist of three or more cards of the same rank, such as three kings, or a sequence of three or more cards in the same suit, such as four consecutive hearts. Players can also form MELDS with a combination of both, such as three kings and two queens of the same suit. The goal of the game is to score points by forming MELDS and playing tricks.