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[[Image:YakuListed.png|thumb|right|300px|[http://tenhou.net/0/?log=2008121721gm-00c1-0000-fcadb0d7&tw=3&ts=5 Example hand], containing many yaku.]] | [[Image:YakuListed.png|thumb|right|300px|[http://tenhou.net/0/?log=2008121721gm-00c1-0000-fcadb0d7&tw=3&ts=5 Example hand], containing many yaku.]] | ||
A '''[[yaku]]''' {{kana|役}} is a certain pattern that scores points, and a necessary condition for winning. They are analogous to hands in poker. In total, there are 26 yaku, 11 [[yakuman]] (a special class of high-scoring yaku), and 1 special case in [[nagashi mangan]]. | A '''[[yaku]]''' {{kana|役}} is a certain pattern that scores points, and a necessary condition for winning. They are analogous to hands in poker. In total, there are 26 yaku, 11 [[yakuman]] (a special class of high-scoring yaku), and 1 special case in [[nagashi mangan]]. | ||
'''In order to win any hand, the hand must have at least one yaku.''' Even if a hand has [[dora]], it cannot score without a yaku. Attempting to win without a yaku is subject to a [[chombo]] penalty, so it is important to learn the yaku, or at least the most common types. | |||
Each yaku is worth a specified amount of '''[[han]]''', where rarer yaku are generally worth more. A hand can score multiple yaku at once. When a hand is won, its han (from both yaku and dora) are added up, and the total han value is converted into points using a [[scoring table]]. | Each yaku is worth a specified amount of '''[[han]]''', where rarer yaku are generally worth more. A hand can score multiple yaku at once. When a hand is won, its han (from both yaku and dora) are added up, and the total han value is converted into points using a [[scoring table]]. | ||
The most important yaku to learn is riichi: it is the most common yaku and very easy to achieve. Any hand that isn't open may declare riichi when [[tenpai|about to win]]. A beginner may rely solely on riichi, though it is important to learn the other yaku too. | |||
The most important yaku to learn is riichi: it is the most common yaku and very easy to achieve. Any hand that isn't open may declare riichi when about to win. A beginner may rely solely on riichi, though it is important to learn the other yaku too. | |||
==One han closed only== | ==One han closed only== |
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