Chinroutou: Difference between revisions

Chinroutou
Type	Yakuman
Kanji	清老頭
English	All terminals
Value	Yakuman
Speed	Very slow
Difficulty	Very hard

VisualWikitext

Latest revision as of 23:36, 23 August 2024

Chinroutou 「清老頭」, or chinro for short, is a yakuman scored when every tile is a terminal (1 or 9). In other words, no simples (2-8) or honors are allowed.

Tile pattern

Agari: or

Formation

For this yakuman, there are only six types of terminals available: two from each of the numbered suit (1 and 9). As 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 kans). 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 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

清老頭

Chinroutou in Japanese Wikipedia

【麻雀】望月雅継の清老頭！！ (YouTube)

Tournament Chinroutou

@@ Line 9: / Line 9: @@
 * [[Chiihou]]
 * [[Suuankou]]
-|gameExample = * [http://tenhou.net/0/?log=2012110110gm-0009-7447-a7f72e7e&tw=2 Chinroutou]
+|gameExample = * [http://tenhou.net/0/?log=2014042400gm-00c1-0000-0c88a3f2&tw=2&ts=0 Chinroutou] against [[double riichi]]
-* [http://tenhou.net/0/?log=2014042620gm-0001-0000-5c73e86b&tw=0&ts=2 Closed chinroutou]
-* [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]], where every tile is a terminal, or 1's or 9's.  No other tile type are used: no [[tanyao|simples]] (2-8) or [[jihai|honors]].
+'''Chinroutou''' {{kana|清老頭}}, or '''chinro''' for short, is a [[yakuman]] scored when every tile is a [[terminal]] (1 or 9). In other words, no [[simples]] (2-8) or [[honor]]s are allowed.
 ==Tile pattern==
 {{#mjt:111m99911p99m}} {{#mjt:11'1s}} Agari: {{#mjt:1p}} or {{#mjt:9m}}
-==Routouhai==
+==Formation==
-'''Routouhai''' {{kana|老頭牌}} are the tiles numbered 1 or 9, among the numbered suits.  In English, they are denoted as '''terminals''', because they are at the end of the 1 to 9 number scale as the numbered suits do not loop.  So a tile group of 9-1-2 do not count, when it comes to forming [[mentsu|tile groups]].  The terminals are as follows:
+[[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). As a standard winning hand is 4 melds and a pair, five out of the six types of terminals are needed to build the hand.
-:{{#mjt:19s19p19m}}
+Since there are only six tile types available for this hand, it is impossible to form a [[chiitoitsu]] variation.
-===Formation===
-For this yakuman, there are only six types of terminals available: two from each of the numbered suit (1 and 9).  Simply, no other tile type can be used for this yakuman.  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 [[chiitoitsu]] variation.
 ===Viability===
-Aside from needing five out of the six terminal types, every tile group must be triplets.  Any calls for kan are acceptable too.  So, any attempt at this yakuman require 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.
+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==