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Yaku variations: Difference between revisions
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Different [[yaku]] may be subject to [[rule variations]]. The variations may include altering the different strengths of the yaku, in relation to point values. A number of yaku are simply not considered standard. | Different [[yaku]] may be subject to [[rule variations]]. The variations may include altering the different strengths of the yaku, in relation to point values. A number of yaku are simply not considered standard. | ||
==Chiitoitsu== | |||
{{main|Chiitoitsu}} | |||
Under most practices, chiitoitsu requires 7 unique pairs. | |||
==Daburu riichi== | ==Daburu riichi== | ||
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Sometimes, it is allowable for a tenpai kokushi musou to declare ron on an [[Kan|ankan]] and thereby invoking the ability for chankan. | Sometimes, it is allowable for a tenpai kokushi musou to declare ron on an [[Kan|ankan]] and thereby invoking the ability for chankan. | ||
* Ari | * Ari – Allowed | ||
* Nashi | * Nashi – Disallowed | ||
==Multiple yakuman== | ==Multiple yakuman== | ||
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* 9 – Junsei chuuren poutou : Nine heavenly gates winning from the nine-sided wait 1112345678999. | * 9 – Junsei chuuren poutou : Nine heavenly gates winning from the nine-sided wait 1112345678999. | ||
[[Yaku | [[Yaku compatibility|Different yakuman patterns]] may be combined. However, scoring is handled differently as well. Score more than one yakuman if multiple yakuman are achieved by the same hand. | ||
* Ari – Add one yakuman per single yakuman, add two yakuman per double yakuman if allowed, and score the sum. | * Ari – Add one yakuman per single yakuman, add two yakuman per double yakuman if allowed, and score the sum. | ||
* Nashi – Score only one yakuman per hand, or two yakuman if double yakuman are allowed. | * Nashi – Score only one yakuman per hand, or two yakuman if double yakuman are allowed. | ||
==Optional yaku== | ==Optional yaku== | ||
{{main|Optional yaku}} | {{main|Optional yaku}} | ||
The main [[list of yaku]] does not include various other possible tile combinations, as they are not accepted as "standard yaku". With this, house rules may include additional yaku to the list, if desired. | The main [[list of yaku]] does not include various other possible tile combinations, as they are not accepted as "standard yaku". With this, house rules may include additional yaku to the list, if desired. The following are particularly common examples; the [[optional yaku]] page contains more detailed rules and many more yaku. | ||
===Daisharin=== | ===Daisharin=== | ||
Daisharin is an optional yaku. This involves pairs of the simples of the suit, [[pinzu]]. Sometimes it is regarded as a [[yakuman]]. Otherwise, the hand is counted normally with its yaku counterparts. The hand is at least 11 han with a combined [[chinitsu]], [[ryanpeikou]], and [[pinfu]]. | Daisharin is an [[optional yaku]]. This involves a closed hand with pairs of each of the simples of the suit, [[pinzu]]. Sometimes it is regarded as a [[yakuman]]. Otherwise, the hand is counted normally with its yaku counterparts. The hand is at least 11 han with a combined [[chinitsu]], [[ryanpeikou]], [[tanyao]], and [[pinfu]]. | ||
:{{#mjt:2233445566778s}} Agari: {{#mjt:8s}} | :{{#mjt:2233445566778s}} Agari: {{#mjt:8s}} | ||
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* Nashi – Score this hand normally. | * Nashi – Score this hand normally. | ||
For souzu and manzu, the hands are labeled as daichikurin and daisuurin. | For souzu and manzu, the hands are labeled as daichikurin and daisuurin, respectively. | ||
===Open riichi=== | |||
Allow players to declare open riichi instead of a normal riichi. Open riichi is worth 2 han instead of the normal 1 han. The declarer must reveal his hand at the same time as he pays the bet of 1,000 points. | |||
* Ari – Allow open riichi along with normal riichi. | |||
* Wait shape – The declarer only needs to reveal 1, 4, 7, or 10 tiles if these completely describe the wait shape of the hand. The pair or pair wait must always be revealed. | |||
* Nashi – Don't allow open riichi. | |||
Sometimes, directly playing into an open riichi (ron) is penalized by yakuman value. | |||
===Paarenchan=== | ===Paarenchan=== | ||
Score the eighth consecutive win of the same dealer as a yakuman. | Score the eighth consecutive win of the same dealer as a [[Optional yaku|yakuman]]. | ||
* Ari - Yakuman scored. | * Ari - Yakuman scored. | ||
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* YMan – Yakuman: Score this as a yakuman. No other yaku is necessary. | * YMan – Yakuman: Score this as a yakuman. No other yaku is necessary. | ||
* M – Mangan: Score this as a mangan. No other yaku is necessary. | * M – Mangan: Score this as a mangan. No other yaku is necessary. If a regular count of the hand would give haneman or better, the normal scoring is used. | ||
* Yaku – Renhou functions as a regular yaku, with an assigned han value. As a regular yaku, it is capable of combining with other yaku. | * Yaku – Renhou functions as a regular yaku, with an assigned han value. As a regular yaku, it is capable of combining with other yaku. | ||
* Nashi – Renhou is not a yaku. The hand is scored normally, there must be at least one other yaku present for a valid win. | * Nashi – Renhou is not a yaku. The hand is scored normally, there must be at least one other yaku present for a valid win. | ||
==Pao== | |||
{{main|Sekinin barai}} | |||
Pao applies to an alternative point exchange, in the event of making foolish discards, which gives players particular advantages. | |||
===Daisangen and daisuushii=== | |||
Impose a liability payment on the player who has dealt the third pon/kanned dragon tile, or the fourth pon/kanned wind tile, if the caller wins with [[daisangen]] (big three dragons) or [[daisuushii]] (big four winds) later. | |||
* Ari – Liable player pays full on tsumo, half on ron. | |||
* Nashi – No liability for daisangen or daisuushii. | |||
===Suukantsu=== | |||
Impose a liability payment on the player who has dealt the fourth kanned tile, if the caller wins with [[suukantsu]] (four [[kantsu]]) later. | |||
* Ari – Liable player pays full on tsumo, half on ron. | |||
* Nashi – No liability for suukantsu. | |||
===Daiminkan rinshan=== | |||
Require that a player pay for a hand, as for a ron, when his or her discard is called for [[daiminkan]] and the caller wins a tsumo for [[rinshan kaihou]] on the replacement tile. | |||
* Ari – Player dealing into daiminkan pays for the whole hand. | |||
* Nashi – All players pay for the hand, as normal for a tsumo. | |||
==Pinfu tsumo== | |||
{{main|Pinfu}} | |||
Some variation applies to pinfu, whether it counts with tsumo or not. | |||
* Ari - Pinfu and tsumo are counted as combined yaku as two han together | |||
* Nashi - When tsumo, pinfu is not counted for one han | |||
==Nagashi mangan== | ==Nagashi mangan== | ||
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* 2 fu – Award the hand 2 fu for tsumo. | * 2 fu – Award the hand 2 fu for tsumo. | ||
* Nashi – Don't count any fu for tsumo on the rinshanpai. | * Nashi – Don't count any fu for tsumo on the rinshanpai. | ||
==Ryuuiisou== | |||
A limit may be imposed on [[ryuuiisou]] to include or exclude [[hatsu]]. | |||
* Incl – Include hatsu | |||
* Req – Require hatsu | |||
* Excl – Exclude hatsu | |||
==Tenhou and chiihou== | ==Tenhou and chiihou== | ||