The phrase identifies a specific type of word puzzle clue that refers to a pastime involving three individuals, playing cards, and adhering to rules related to lexical knowledge. An example would be: “A bridge variant played with a reduced deck (7, 5, 4).”
Such clues offer a concise way to describe a leisure activity within a limited space. They demand both a strong vocabulary and an understanding of gaming terminology, combining elements of general knowledge with specialized recreation lexicon. Historically, crosswords have often included references to popular games, reflecting their cultural significance and widespread appeal.