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Yaku compatibility: Difference between revisions
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(improve the intro. put the two separate interpretations into bullet points. junchan is the one that is only terminals, it doesn't allow onors) |
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[[Image:Junchan sanshoku baiman.jpg|thumb|right|250px|A single hand composed of six yaku to produce a baiman hand.]] | [[Image:Junchan sanshoku baiman.jpg|thumb|right|250px|A single hand composed of six yaku to produce a baiman hand.]] | ||
This is a table showing the compatibilities of the different [[yaku]] with each other. While yaku may be combined in one hand, it is simply impossible to combine certain yaku with each other. | This is a table showing the compatibilities of the different [[yaku]] with each other. While yaku may be combined in one hand, it is simply impossible to combine certain yaku with each other. This can arise for two reasons: | ||
# Conflicting definitions. [[Tanyao]] requires the hand contains no honor tiles, but [[yakuhai]] requires a triplet of honor tiles, so the two cannot be combined. | |||
# When a yaku always implies another yaku, they cannot score together. For instance, a [[junchan]] hand has a terminal in every group. This also fits the definition of [[chanta]], which mandates that the hand has a terminal or honor in each group. Every junchan hand is also a chanta hand, so chanta is not scored. By rule, two yaku cannot be combined if one always implies the other. (A partial exception is with [[shousangen]]. Shousangen always implies two dragon yakuhai, but does not always imply you have any one of "haku", "hatsu", or "chun".) | |||
== Yaku == | == Yaku == | ||
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* Toitoi + Mentsumo = Suuankou | * Toitoi + Mentsumo = Suuankou | ||
* Honroutou + Junchan = Chinroutou | * Honroutou + Junchan = Chinroutou | ||
* | * Double riichi + Chankan is only possible with a Kokushi musou hand | ||
Some combinations form a different yaku which implies one component of the combination, and as a result can never be counted: | Some combinations form a different yaku which implies one component of the combination, and as a result can never be counted: | ||