Japanese Mahjong Wiki

Yakuhai: Difference between revisions

Page Discussion

Yakuhai (view source)

Revision as of 03:05, 14 June 2024

609 bytes added ,  14 June
m
→‎Atozuke
VisualWikitext
mNo edit summary
 
(19 intermediate revisions by 6 users not shown)
Line 3: Line 3:
|kanji      = 役牌
|kanji      = 役牌
|english    = Value tiles
|english    = Value tiles
|value      = 1 han per counted meld
|value      = 1 han per counted triplet
|yakuSpeed  = Very fast
|yakuSpeed  = Very fast
|difficulty  = Very easy
|difficulty  = Very easy
Line 11: Line 11:
* [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]
}}
}}
'''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, 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]]. They come in three classes:
* [[Sangenpai|Dragon tile groups]] always count for yakuhai.
* [[Kazehai|Wind tiles]] of the [[round wind]] count as yakuhai.
* Wind tiles of the [[seat wind]] also count as yakuhai.
 
If a wind is both the round and seat wind, it is worth 2 han. A wind that is neither round or seat wind is known as an "offwind" ({{kana|客風}}) or "guest wind"; these are not yakuhai and not worth any han, but are still valid tile groups to complete the "4 groups + 1 pair" shape.
 
The yakuhai as a whole, along with [[riichi]] and [[tanyao]], are some of the easiest and most frequent yaku in the game.


==Tile patterns==
==Tile patterns==
{| class="wikitable" align=right style="margin:0.5em" width=15%
{| class="wikitable" align=right style="margin:0.5em" width=30%
|-
|-
! Yakupai !! Kanji !! Yakupai !! Kanji
! Yakupai !! Kanji !! Yakupai !! Kanji
Line 47: Line 54:
Each of the dragon quads scores 1 han for its own yakuhai. They are scored separately, and the fact that they are quads rather than triplets is irrelevant in the scoring. The additional [[jantou|pair]] of red dragons means that the hand scores [[shousangen]] in addition to, but not instead of, the double yakuhai.
Each of the dragon quads scores 1 han for its own yakuhai. They are scored separately, and the fact that they are quads rather than triplets is irrelevant in the scoring. The additional [[jantou|pair]] of red dragons means that the hand scores [[shousangen]] in addition to, but not instead of, the double yakuhai.


==Usage==
==Terminology==
Along with [[tanyao]], yakuhai are among the easiest yaku to learn and use. As the honour tiles are generally weak due to their inability to form [[shuntsu|sequences]], they are often discarded early in the hand. A player starting with a [[toitsu|pair]] of eligible tiles can usually [[pon]] a third, instantly satisfying the yaku requirement.   This ability makes this yaku exceptionally convenient for the completion of fast hands.  Therefore, this yaku is also sometimes called an '''express ticket'''.
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.
 
{{#mjt:111z}} {{#mjt:777z}} {{#mjt:00000000z}}
 
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.


Players looking for a quick win will often hold lone yakuhai tiles a little longer than their [[tile efficiency]] would dictate, in hopes of getting a second and then calling (or drawing) a third to make a yakuhai. This is particularly true with hands that will have difficulty completing an open [[tanyao]], either because they have lots of [[routouhai|terminals]] or honours, or because [[kuitan|open tanyao]] is not allowed.
== Compatibility ==
{{main|Yaku compatibility}}


===Atozuke===
{{Yaku compatibility table|YAK}}
{{main|Atozuke}}
:{{#mjt:66z345p99m}} {{#mjt:1'23m66'6s}} Agari: {{#mjt:6z}} or {{#mjt:9p}}


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 is compatible 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.


==Terminology==
[[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.
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.


== Compatability ==
==Usage==
{{main|Yaku compatability}}
Along with [[tanyao]], yakuhai are among the easiest yaku to learn and use. As the honour tiles are generally weak due to their inability to form [[shuntsu|sequences]], they are often discarded early in the hand. A player starting with a [[toitsu|pair]] of eligible tiles can usually [[pon]] a third, instantly satisfying the yaku requirement. This ability makes this yaku exceptionally convenient for the completion of fast hands. Therefore, this yaku is sometimes called an '''express ticket'''.


{{Yaku compatibility table|YAK}}
Players looking for a quick win will often hold lone yakuhai tiles a little longer than their [[tile efficiency]] would dictate, in hopes of getting a second and then calling (or drawing) a third to make a yakuhai. This is particularly true with hands that will have difficulty completing an open [[tanyao]], either because they have lots of [[routouhai|terminals]] or honours, or because [[kuitan|open tanyao]] is not allowed.


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.  Different groups of yakuhai tiles may be collected into one hand; and so, this yaku is compatible with itself.  In particular, [[shousangen]] requires not just one, but two yakuhai.
===Atozuke===
{{main|Atozuke}}
:{{#mjt:66z345p99m}} {{#mjt:1'23m66'6s}} Agari: {{#mjt:6z}} or {{#mjt:9m}}


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 those yaku.
Hands that are opened before confirming a yakuhai triplet are particularly subject to [[atozuke]]. Here, the hand depends on yakuhai to gain a yaku. Under normal circumstances, this hand may win if it obtains the hatsu, but not the 9-man. (It can win with any winning tile if a conditional yaku, such as [[houtei]] or [[chankan]], is obtained.)


==External links==
==External links==
Hordes
924

edits

Retrieved from "https://riichi.wiki/Special:MobileDiff/15477...25138"