Nine Gates (九蓮寶燈)

What is Nine Gates?

Nine Gates (九蓮寶燈), pronounced gau lin bou dang and literally “Nine Sacred Lanterns”, is a 15-faan limit hand in Hong Kong Mahjong requiring a specific 13-tile pattern in one numbered suit — three 1s, one each of 2 through 8, and three 9s — plus any 14th tile of the same suit to complete the win. It is widely considered the most prestigious hand in mahjong, paying the 384-base-unit limit cap.

How to score Nine Gates

The required 13-tile base is exact:

• Three 1s of the chosen suit (一)
• One each of 2, 3, 4, 5, 6, 7, 8 of that suit
• Three 9s of the chosen suit (九)

Any 14th tile of the same suit completes the hand. Because all nine values can be the completing tile, Nine Gates always wins on a “nine-way wait” — a wait pattern that accepts any of the nine numbered tiles in the suit. This nine-way wait is the most permissive winning shape in the game.

The hand uses zero honor tiles. It is purely structural, sharing the suit-purity requirement with Full Flush (清一色).

Example hand

Faan value: 15 (limit hand)

Nine Gates is worth 15 faan, paying the 384-base-unit limit cap. It supersedes Full Flush (7 faan) automatically — every Nine Gates is also a Full Flush by definition, but Nine Gates absorbs the lower-tier scoring entirely.

Common combinations

Nine Gates is a limit hand and does not stack with most other patterns. The structural patterns it overlaps with are absorbed:

• Full Flush (清一色) — automatically true. Not counted separately.
• Concealed Hand (門前清) — applies in most cases; pure-form Nine Gates requires the hand to be entirely concealed in the strictest interpretation, though TileBuddy permits looser variants depending on table rules.
• Self-Pick (自摸) — affects payment direction.

Strategic note

Nine Gates is the rarest target hand for a reason: drawing exactly the 1-1-1-2-3-4-5-6-7-8-9-9-9 pattern from random deal is statistically improbable, and locking into the pattern requires a full commitment to one suit — discarding all winds, dragons, and other-suit tiles. Most documented Nine Gates wins occurred on hands that started with strong one-suit composition and never deviated. The hand is sometimes called “the cursed hand” in folklore; legend holds that completing a pure Nine Gates marks the player’s last mahjong game in life — though this is superstition, not rule.