Guandan · Rules

Four players, 108 cards, opposite partners; level hearts are wild.

Straights have exactly five cards, pair runs exactly three pairs, and triple runs exactly two triples. Level rank does not break sequences; ace may be low. Level hearts replace non-jokers. Bombs start at four cards. Straight flush beats five-card bombs but loses to six-card bombs; four jokers are highest. First-out partner finishing second/third/fourth advances 3/2/1 levels. Win at active level A in places 1–2 or 1–3 to finish the match. Double loss means double tribute; otherwise last pays first. Two big jokers resist. Give the highest non-wild card; return a non-level card of 10 or below, or a lowest card if none is available. Partners catch the wind.