Chinroutou: Difference between revisions

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'''Chinrotou''' (清老頭) is a [[List of yaku#Yakuman|yakuman]], where every tile is composed of terminals (1s and 9s).
{{Infobox yaku
|type        = Yakuman
|kanji      = 清老頭
|english    = All terminals
|value      = Yakuman
|yakuSpeed  = Very slow
|difficulty  = Very hard
|yakuCombine = * [[Tenhou]]
* [[Chiihou]]
* [[Suuankou]]
|gameExample = * [http://tenhou.net/0/?log=2014042400gm-00c1-0000-0c88a3f2&tw=2&ts=0 Chinroutou] against [[double riichi]]
* [http://tenhou.net/0/?log=2013020807gm-0009-7447-8494ff98&tw=3&ts=2 With] [[Suukantsu]]
}}
'''Chinroutou''' {{kana|清老頭}} is a [[List of yaku#Yakuman|yakuman]] scored when every tile is a [[terminal]] (1 or 9). In other words, no [[tanyao|simples]] (2-8) or [[jihai|honors]] are allowed. For short, it can be referred to as '''chinro'''.


==Tile pattern==
==Tile pattern==
{{#mjt:111m999111p99m}} {{#mjt:11'1s}} Agari: {{#mjt:1p}} or {{#mjt:9m}}
{{#mjt:111m99911p99m}} {{#mjt:11'1s}} Agari: {{#mjt:1p}} or {{#mjt:9m}}


==Formation==
==Formation==
For this yakuman, there are only six types of terminals available: two from each of the numbered suit (1 and 9). Given the basic hand pattern of four melds and a pair, five out of the six types of terminals are needed to build this hand. Since there are only six tile types available for this hand, it is impossible to form a [[chii toitsu]] variation.
[[Image:Chinroutou denied.png|250px|thumb|right|Possible [http://tenhou.net/0/?log=2015090615gm-0089-0000-acd2836c&tw=3&ts=3 chinroutou threat] after two calls and a low terminal count among discards.]]
For this yakuman, there are only six types of terminals available: two from each of the numbered suit (1 and 9). A standard winning hand is 4 melds and a pair, five out of the six types of terminals are needed to build the hand.  
 
Since there are only six tile types available for this hand, it is impossible to form a [[chiitoitsu]] variation.
 
===Viability===
Aside from needing five out of the six terminal types, every tile group must be triplets (or [[kan]]s). So, any attempt at this yakuman requires the proper number of terminals as well as the ability to collect triplets. More often than not, players must make [[naki|tile calls]] in order to do so.  Only a rare number of times can this yakuman be completed while closed. On the other hand, the yakuman is rendered impossible if enough terminals are discarded or made unavailable.


==External links==
==External links==
[[Category:Yaku]]
{{jpwiki|清老頭}}
{{Youtube
| url        = https://www.youtube.com/watch?v=CPas2t-bgR8
| linkname    = 【麻雀】望月雅継の清老頭!!
| description = Tournament Chinroutou
}}
 
{{Navbox yaku}}
 
[[Category:Yakuman]]
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