The card distribution includes some ranks of negative value, is a "must follow" game, and does not include any trump suits.
The winner of a trick is the person who played the second highest card of the lead suit. That player collects their card and any cards which did not follow suit into a score pile. However, a player can have at most one card of each rank in their score pile. If they would collect a second, both cards are instead discarded. At the end of a hand, a player scores an amount of points equal to the sum of the ranks of the cards they have collected.