Shousangen: Difference between revisions

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 |yakuSpeed   = Medium
 |difficulty  = Medium
-|yakuCombine = * [[Riichi]]
+|gameExample =
-* [[Ippatsu]]
-* [[Tsumo]]
-* [[Yakuhai]] x 2
-* [[Toi toi]]
-* [[Honitsu]]
-* [[Chanta]]
-* [[San ankou]]
-* [[Honroutou]]
-|gameExample = * [http://tenhou.net/0/?log=2013032209gm-0009-7447-9480d82d&tw=1&ts=6 Open]
-* [http://tenhou.net/0/?log=2012111415gm-0009-7447-c8bfceef&tw=2&ts=11 Tenpai] for [[daisangen]]
 }}
-'''Shousangen''' (小三元) is a standard [[List of yaku|yaku]].  This yaku employs the three [[sangenpai]], where the hand is composed of two [[Mentsu#Koutsu|koutsu]] (triplet) and a jantou (pair) of the third type.
+'''Shousangen''' {{kana|小三元}} is a standard [[List of yaku|yaku]], reliant on all three [[sangenpai]] (dragon tiles). The hand is composed of two [[Mentsu#Koutsu|koutsu]] (triplet) and a [[jantou]] (pair) of the third type.
 ==Tile pattern==
-{{#mjt:22m340p77666z}} {{#mjt:55'5z}} agari : {{#mjt:2m}}
+{{#mjt:22m340p77666z}} {{#mjt:55'5z}} Yasume: {{#mjt:2m}}  Takame: {{#mjt:7z}}
-Winning on [[yasume]] (cheaper winning tile), notice that winning on {{#mjt:7z}} would give a [[daisangen]] yakuman instead.
+This hand is a shousangen while winning on the [[yasume|cheaper winning tile]]. If it wins on the other tile, {{#mjt:7z}}, it would give a [[daisangen]] yakuman instead.
-==Formation==
+==Development==
+The hand requires two out of the four tile groups to be composed of dragon triplets, while the pair is always of the third type. That leaves two tile groups to be based off of any tile composition. Often enough but not always, such a hand may be tenpai for daisangen.
-=== Compatability ===
+=== Compatibility ===
-{{main|Yaku compatability}}
+{{main|Yaku compatibility}}
-{{yakuheader}}
+{{Yaku compatibility table|SSG}}
-| SSG || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{no}} || {{no}} || {{yes}} || {{no}} || {{yes}} || {{no}} || {{no}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{no}} || {{no}} ||bgcolor="000000"|  || {{yes}} || {{yes}} || {{no}} || {{no}} || {{yes}} || {{yes}} || {{yes}} || {{yes}}
-|}
+Shousangen requires two of the four tile groups to be dragon triplets, leaving no room for [[ittsu]], [[ryanpeikou]], [[sanshoku]], and [[sanshoku doukou]] (which all require three groups). [[Chiitoitsu]] forbids mentsu and is similarly incompatible. Naturally, [[pinfu]], [[tanyao]], [[junchan]], and [[chinitsu]] are incompatible because of the dragon tiles.
+Every shousangen hand always scores at least two yakuhai from the two dragon triplets. Normally, when a yaku is guaranteed by another yaku, the guaranteed yaku is not scored. However, because shousangen does not guarantee any particular yakuhai (i.e., it does not guarantee "haku", "hatsu", or "chun"), the two yakuhai are scored.
 ==Value==
-In general, this yaku is noted as 2 han.  However, it is impossible for this yaku to score without two instances of [[yakuhai]] from the two [[Koutsu|groups]] of sangenpai.  In combination, this yaku will never produce a hand worth less than 4 han.
+Shousangen is usually denoted as a 2 han yaku. However, because it is impossible to score shousangen without at least two yakuhai, shousangen is effectively worth 4 han.
+The two yakuhai triplets are worth a minimum of 4 fu each, and the yakuhai pair is worth 2 fu. Therefore, the lowest scoring shousangen is 4 han 30 fu, barely shy of [[mangan]]. The requirements to reach 4 han 30 fu, assuming no additional yaku, are:
+* The hand must be won by ron, as a tsumo would score 2 fu.
+* The wait must be either a [[ryanmen]] or [[shanpon]] wait, as any other wait would score 2 fu.
+* Both of the other groups must be [[shuntsu]] of different suits. If either was a [[koutsu]], it would score at least 2 fu.
+* Both of the yakuhai groups must be open, as they would score additional fu if closed. Note that as this is for the purposes of counting fu, if a group is completed by ron, it counts as being open.
+* Neither of the yakuhai groups may be [[kantsu]], as they would score additional fu as kantsu.
+Two examples scoring exactly 4 han 30 fu:
+{{#mjt:234p34s66z}} {{#mjt:555'z}} {{#mjt:7'77z}} Ron: {{#mjt:5s}}
+{{#mjt:567m123s6677z}} {{#mjt:55'5z}} Ron: {{#mjt:6z}}
 ==External links==