Honroutou: Difference between revisions

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* [[Sankantsu]]
* [[Sankantsu]]
* [[Chiitoitsu]]
* [[Chiitoitsu]]
|gameExample =  
|gameExample = * [http://tenhou.net/0/?log=2012061612gm-0009-7447-667651ae&tw=3&ts=4 One terminal group]
* [http://tenhou.net/0/?log=2014012816gm-0009-7447-3851d1db&tw=1&ts=5 With] [[sanshoku doukou]]
}}
}}
'''Honroutou''' (混老頭) is a standard yaku, focusing on just the [[jihai|honors]] and terminals.
'''Honroutou''' {{kana|混老頭}} is a standard yaku, focusing on just the [[jihai|honors]] and [[routouhai|terminals]].  To score honroutou, the hand must contain only honors and terminals.  If the hand is all honors or all terminals, then [[tsuuiisou]] or [[chinroutou]] will be scored instead.


==Tile pattern==
==Tile pattern==
{{#mjt:111p999s11z11m}} {{#mjt:22'2z}}  Agari: {{#mjt:1z}} or {{#mjt:1m}}


==Formation==
==Formation==
This yaku requires [[routouhai|terminal]] and [[jihai|honor]] tiles only.  While terminals may be used for [[shuntsu|sequences]], this yaku cannot form those sequences.  Otherwise, this yaku would no longer be honroutou but rather [[chanta]].
This yaku requires [[routouhai|terminal]] and [[jihai|honor]] tiles only.  While terminals may be used for [[shuntsu|sequences]], this yaku cannot form those sequences.  Otherwise, this yaku would no longer be honroutou but rather [[chanta]]. Naturally, a concentration of honor and terminal tiles are required to even consider this yaku.  A majority of honroutou hands are open, especially when they only utilize pon to call tiles.
 
=== Compatibility ===
{{main|Yaku compatibility}}


=== Compatability ===
{{Yaku compatibility table|HRO}}
{{main|Yaku compatability}}


{{yakuheader}}
Honroutou is not compatible with any yaku which require a sequence, which accounts for most of the incompatibilities (including [[chankan]], which must always win on a sequence wait). [[Tanyao]] is incompatible because it requires no terminals or honours, and honroutou requires only those tiles. [[Chantaiyao]] is incompatible because it is implied by honroutou. Finally, if [[honroutou]] is combined with [[junchan]], the entire hand must be terminals, which gives the [[chinroutou]] yakuman.
| HRO || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{no}} || {{no}} || {{no}} || {{no}} || {{yes}} || {{no}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{no}} || {{no}} || {{no}} || {{yes}} ||bgcolor="000000"|  || {{yes}} || {{no}} || {{yes}} || {{yes}} || {{yes}} || {{yes}} || {{no}}
|}


==Value==
==Value==
At minimum, it is impossible to score this yaku without at least either [[toitoi]] or [[chiitoitsu]].  So, this yaku is actually at minimum, the equivalent of 4 han.
It is impossible to score this yaku without at least either [[toitoi]] or [[chiitoitsu]].  So this yaku is, at minimum, worth 4 han.


When factoring [[fu]], the combination of [[koutsu|ankou]] and [[koutsu|minkou]] (closed and open triplets) produces a fu count of higher than 10.  The lowest possible fu is generated with 4 minkou, leading to [[tanki|hadaka tanki]] (lone pair wait).  Adding the base 20 fu for any hand, this yaku is guaranteed greater than 30 fu; and with the rules of fu, that number is actually rounded up to at least 40 fu.  Therefore, a honroutou composed of ankou and minkou is at minimum a [[mangan]].
When factoring [[fu]], the combination of [[koutsu|ankou]] and [[koutsu|minkou]] (closed and open triplets) produces a fu count of higher than 10.  The lowest possible fu is generated with 4 minkou, leading to [[tanki|hadaka tanki]] (lone pair wait).  Adding the base 20 fu for any hand, this yaku is guaranteed greater than 30 fu; and with the rules of fu, that number is actually rounded up to at least 40 fu.  Therefore, a honroutou composed of ankou and minkou is at minimum a [[mangan]].
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