52 cards. Deal 7 each with 2–3 players, 5 with 4–6. Ask an opponent with cards for a rank you hold. They give all matching cards. A successful request lets you ask again. Otherwise draw one: reveal it and repeat if it matches, or pass the turn if not. Four of a kind automatically forms a public book. Empty hands draw one on their turn; empty hands are skipped if the stock is empty. If all opponents are empty but stock remains, the next player refills first. Ends at 13 books; most books wins, with ties allowed. Based on Bicycle; six players is our five-card extension.

Rooms expire 24 hours after the last action. Refresh to reconnect; leaving ends the current game.