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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 in a mahjong hand that scores points, and a necessary condition for winning | A '''[[yaku]]''' {{kana|役}} is a certain pattern in a mahjong hand that scores points, and a necessary condition for winning (analogous to hands in poker). A hand can score multiple yaku at once. Under standard rules, there are 26 different yaku and 11 [[yakuman]] (a special class of high-scoring yaku). In addition, one special case may be allowed 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. Declaring a win without yaku can score a [[chombo]] penalty. Therefore, when learning the game, it is essential to learn the different types of yaku. | '''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. Declaring a win without yaku can score a [[chombo]] penalty. Therefore, when learning the game, it is essential to learn the different types of yaku. | ||
Each yaku has a specified amount of '''[[han]]''' {{kana|飜}}, generally | Each yaku has a specified amount of '''[[han]]''' {{kana|飜}}, where rarer yaku are generally worth more han. Han can also be increased by acquiring dora, but dora do not count as yaku for the purposes of winning. A hand's total han value, counted from adding up yaku and dora, [[Scoring table|determines the points]] you'll get in the end. | ||
The most important yaku to learn is [[riichi]] | 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. | ||
==One han closed only== | ==One han closed only== |
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