Deck and deal
Use a standard 52-card deck with no jokers. All cards are dealt to four players.
Card order
Hong Kong ranking with suit priority.
Rank and suit order
2 is highest, 3 is lowest. Suits rank spades, hearts, clubs, then diamonds.
Opening lead
The round opens with the 3 of diamonds.
Valid hands
Standard Hong Kong five-card ranking.
Valid hands
Singles, pairs, triples, and five-card hands: straight, flush, full house, four of a kind, straight flush.
Comparison
Play the same number of cards and beat the current hand using rank and suit.
Five-card ranking
Hand types rank: straight, flush, full house, four of a kind, straight flush.
Play flow
Passes reset the trick.
Play flow
The player with the 3♦ leads. Each turn must beat the current hand or pass.
Passing
If all other players pass, the last player to play starts a new trick.
Winning
The first player to play all cards wins the round.
Learn more
Reference the Big Two rules overview on Wikipedia.