Chun
By Kenji Tanaka · Updated
Definition
Chun is the red dragon, its face showing the red character for center. A chun triplet scores 1 han of yakuhai from any seat in any round, and it rounds out the dragon trio with haku and hatsu.
Chun
Chun (中, ちゅん) is the red dragon tile, one of three special honor tiles called dragons (sangenpai) in mahjong. A triplet of chun forms the yakuhai yaku worth 1 han, making it a valuable building block for scoring hands.
Chun in detail
The Three Dragons
Chun is one of the three dragon tiles:
- Haku (白, white dragon): Blank or white tile
- Hatsu (發, green dragon): Green character
- Chun (中, red dragon): Red character meaning “center” or “middle”
Each dragon appears as four identical tiles in a mahjong set, for a total of 12 dragon tiles.
Yakuhai Value
A triplet (three identical tiles) of chun immediately creates the yakuhai yaku worth 1 han. Unlike wind tiles, which only count as yakuhai if they match your seat wind or the round wind, dragon tiles always count as yakuhai regardless of position. This universal value makes dragons particularly useful for quick, guaranteed scoring.
Strategic Importance
Easy Yaku Formation: Dragons are among the easiest yaku to form. Any triplet of chun guarantees 1 han, providing a reliable foundation for otherwise weak hands.
Open-Hand Compatible: Unlike many yaku, yakuhai from dragons works equally well in open or closed hands. You can call pon on discarded chun tiles without losing han value, making dragon triplets excellent for speed-oriented play.
Daisangen Potential: If you collect triplets of all three dragons (haku, hatsu, and chun), you form the rare yakuman daisangen (big three dragons) worth maximum points. While difficult to achieve, even having two dragon triplets creates significant pressure and scoring potential.
Defensive Considerations
Dangerous in Late Game: Dragons become increasingly dangerous discards as the game progresses. Since they don’t form sequences (only triplets), players who haven’t discarded a particular dragon likely hold multiples and may be building toward yakuhai.
Early Discards: If a dragon appears in early discards from multiple players, it’s safer to discard your own copies. Conversely, if no one has discarded chun, holding it may be risky as someone likely waits for it.
Walking through Chun
You hold two chun tiles and are considering your hand direction. Another player discards a third chun, and you call “pon!” to complete the triplet. You now have yakuhai (1 han) secured, even if your hand is otherwise patternless. This guaranteed han makes your hand viable, you can focus on completing the remaining melds rather than worrying about meeting the yaku requirement.
Related Terms
Haku
白
Haku is the white dragon, traditionally a completely blank tile face (or a simple blue border), which is why casual sets often press it into service as a spare. A haku triplet is worth 1 han of yakuhai regardless of seat or round, and it joins hatsu and chun in the dragon trio that builds shousangen and the yakuman daisangen.
Hatsu
發
Hatsu is the green dragon, printed entirely in green ink, and the only dragon whose color gives it a second job: it is the anchor tile of the all-green yakuman ryuuiisou. As a value tile, a hatsu triplet scores 1 han of yakuhai from any seat in any round. With haku and chun it completes the sangenpai trio behind shousangen and daisangen.
Sangenpai
三元牌
Sangenpai are the three dragons: haku (white), hatsu (green), chun (red). Every one is a permanent value tile, worth a han from any seat in any round, which is what separates dragons from winds. Two dragon triplets plus a pair of the third is shousangen; all three as triplets is the yakuman daisangen.