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* [http://tenhou.net/0/?log=2012120416gm-0009-0000-20a78337&tw=3&ts=12 Double West]
* [http://tenhou.net/0/?log=2012120416gm-0009-0000-20a78337&tw=3&ts=12 Double West]
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'''Yakuhai''' {{kana|役牌}} is a group of 1 [[han]] [[yaku]] scored for completing a [[mentsu|group]] of certain  [[jihai|honour tiles]].  Along with [[tanyao]] and [[riichi]], these yaku are the easiest and most frequently occurring yaku in the game. The yakuhai awarded for [[kazehai|wind tiles]] are unique in that the eligible tiles change over the course of the game, [[Jikaze|relative to each player]]. [[Sangenpai|Dragon tile groups]], on the other hand, count throughout the game.
'''Yakuhai''' {{kana|役牌}}, or '''Fanpai''' {{kana|飜牌}}, is a group of 1 [[han]] [[yaku]] scored for completing a [[mentsu|group]] of [[jihai|honor tiles]].  Along with [[tanyao]] and [[riichi]], these yaku are the easiest and most frequently occurring yaku in the game. [[Sangenpai|Dragon tile groups]] always count for yakuhai. [[Kazehai|Wind tiles]] only count for yakuhai if they are the [[round wind]] or the player's [[seat wind]]; other winds are considered offwind or '''otakaze''' {{kana|客風}} and do not grant a yaku or any han, though they may still form valid triplets for the purpose of making four sets and a pair for a complete hand.


==Tile patterns==
==Tile patterns==
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===Atozuke===
===Atozuke===
{{main|Atozuke}}
{{main|Atozuke}}
:{{#mjt:66z345p99m}} {{#mjt:1'23m66'6s}} Agari: {{#mjt:6z}} or {{#mjt:9p}}
:{{#mjt:66z345p99m}} {{#mjt:1'23m66'6s}} Agari: {{#mjt:6z}} or {{#mjt:9m}}


Yakuhai hands may commonly be used for [[atozuke]].  Here, the hand depends on yakuhai for yaku, where among the multiple waiting tiles, one of them is a yakuhai tile.  However, the other waiting tile(s) may not produce a yaku, unless it wins via [[chankan]], [[rinshan]], [[haitei]], or [[houtei]].
Yakuhai hands may commonly be used for [[atozuke]].  Here, the hand depends on yakuhai for yaku, where among the multiple waiting tiles, one of them is a yakuhai tile.  However, the other waiting tile(s) may not produce a yaku, unless it wins via [[chankan]], [[rinshan]], [[haitei]], or [[houtei]].


==Terminology==
==Terminology==
While yakuhai can be referred to collectively and it is rarely ambiguous, it is not uncommon to call them out individually, particularly when scoring a hand by announcing its yaku. The table to the right shows the written forms of most of the yakuhai.
While yakuhai can be referred to collectively and it is rarely ambiguous, it is not uncommon to call them out individually, particularly when scoring a hand by announcing its yaku. The table to the right shows the written forms of most of the yakuhai.  Some game platforms count statistics on the individually different yakuhai, by dragons and winds.  Others collect them all under one statistic.


== Compatability ==
{{#mjt:111z}} {{#mjt:777z}} {{#mjt:00000000z}}
{{main|Yaku compatability}}
 
For example, a dealer winning the previous hand during the east turn wouldn't say: "three yakuhai", but rather: "double east, red dragon". This makes the origin of each han clearer.
 
== Compatibility ==
{{main|Yaku compatibility}}


{{Yaku compatibility table|YAK}}
{{Yaku compatibility table|YAK}}


Yakuhai essentially works with any yaku which has room or allows the use of honor tile groups, which gives it great versatility. [[Honitsu]] is one of the most effective combinations with at least one yakuhai group.  This yaku is compatible with itself. Different groups of yakuhai tiles may be collected into one hand; and in turn, they are treated as separate yaku, despite identical functionality. In particular, [[shousangen]] requires not just one, but two yakuhai.  
Yakuhai essentially works with any yaku which allows a triplet and allows honor tiles. [[Tanyao]], [[junchan]], and [[chinitsu]] forbid honor tiles. [[Pinfu]] and [[ryanpeikou]] do not allow triplets. [[Chiitoitsu]] requires seven distinct pairs, also preventing triplets.


Incompatibilities arise for a few reasons. Firstly, the definitions of [[tanyao]], [[junchan]], and [[chinitsu]] eliminates the use of honor tiles all together. [[Pinfu]] and [[ryanpeikou]] each require four sequence groups and [[chiitoitsu]] requires seven distinct pairs, leaving no room for a triplet in any of these yaku.
[[Honitsu]] is one of the most effective combinations with at least one yakuhai group. This yaku is compatible with itself. Different groups of yakuhai tiles may be collected into one hand; and in turn, they are treated as separate yaku, despite identical functionality. In particular, [[shousangen]] requires not just one, but two yakuhai.


==External links==
==External links==
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