Sankantsu: Difference between revisions

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|yakuSpeed  = Very slow
|yakuSpeed  = Very slow
|difficulty  = Very hard
|difficulty  = Very hard
|yakuCombine = All other yaku, except [[pinfu]] or [[iipeikou]].
|yakuCombine = All other yaku, '''except''' [[chiitoitsu]] or those requiring more than one sequence ([[pinfu]], [[iipeikou]], [[ittsu]], [[sanshoku doujun]], [[ryanpeikou]]).
|gameExample = [http://tenhou.net/0/?log=2008121721gm-00c1-0000-fcadb0d7&tw=3&ts=5 Triple kan]
|gameExample = * [http://tenhou.net/0/?log=2008121721gm-00c1-0000-fcadb0d7&tw=3&ts=5 Triple kan]
}}
}}
'''Sankantsu''' (三槓子) is a standard [[yaku]]. This yaku requires kan to be called three times by one player. Due to this requirement, this yaku is actually the most difficult of the regular yaku.  Within [[Tenhou.net]], the yaku actually occurs less frequently than some yakuman.
'''Sankantsu''' {{kana|三槓子}} is a standard [[yaku]]. It requires the player to call [[kan]] three times. Despite being only worth 2 han, it is the rarest and most difficult out the regular yaku.


==Tile pattern==
==Tile pattern==
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{{#mjt:345p1z}} {{#mjt:44'44m0z88s0z2222'p}}  Waiting for: {{#mjt:1z}}
{{#mjt:345p1z}} {{#mjt:44'44m0z88s0z2222'p}}  Waiting for: {{#mjt:1z}}


==Formation==
Kan must be called three times, and as a result, the tenpai hand will have at most four tiles in its closed section. If necessary, the hand can call again to have a [[hadaka tanki|single tile remaining]].
Of all the standard yaku, sankantsu is the most difficult. Its rate of occurrence rivals that of some yakuman.
 
==Development==
Of all the standard yaku, sankantsu is the most difficult and least frequent. It appears less often than several [[yakuman]], including rarer yakuman like [[suuankou tanki]], [[tsuuiisou]], and [[shousuushii]].
* Being able to call 3 kans is difficult on its own. You must draw 3 of the same type of type by yourself, then draw/call the 4th, three separate times.
* Players may not want to call kan even if they are able. Each kan reveals [[kandora]]; this is already risky after one kan, let alone three. And until you get the 3rd kan, you won't have any guaranteed yaku (thus making the 1st and 2nd calls even more dubious).
* Even when someone is tenpai for sankantsu, the hand can end in the event another player calls kan for a fourth time, invoking an [[abortive draw]].
 
Overall, this yaku is not worth its measly 2 han value.
 
If the player calls kan for a fourth time, the hand instead gains the yakuman, [[suukantsu]].
 
== Compatibility ==
{{main|Yaku compatibility}}
 
{{Yaku compatibility table|SNK}}
 
Three out of the four tile groups must be called for kan, which are treated as triplets. This leaves no room for [[iipeikou]], [[ryanpeikou]], [[ittsu]], and [[sanshoku doujun]]. [[Pinfu]] and [[chiitoitsu]] forbid kan calls and are thus not compatible. Every other yaku is compatible.


==Value==
==Value==
This yaku is set at 2 han. However, the number of kans significantly increases the hand's value. Generally, a fu count of 60 or more is the equivalent of increasing the han count by 1, in terms of scoring.  
This yaku is set at 2 [[han]]. However, the number of kans will increases the hand's value through [[fu]] and (potentially) kandora.  
 
At minimum, a hand with sankantsu is worth 2 han and 50 fu (3200 points), which is [[Scoring table|equivalent]] to 3 han and 25 fu. To reach the minimum score, you must have 3 open kan composed of [[tanyao|simples]] (tiles 2-8). Each open simple kan is worth 8 fu, for a total of 24 additional fu to the base 20. The net total of 44 fu is rounded up to 50 fu.  


==External links==
==External links==
{{jpwiki|三槓子}}


[[Category: Yaku]]
[[Category: Yaku]]


{{Navbox yaku}}
{{Navbox yaku}}

Latest revision as of 05:24, 15 June 2024

Sankantsu
Type Yaku
Kanji 三槓子
English Three kans
Value 2 han
Speed Very slow
Difficulty Very hard

Sankantsu 「三槓子」 is a standard yaku. It requires the player to call kan three times. Despite being only worth 2 han, it is the rarest and most difficult out the regular yaku.

Tile pattern

Waiting for:

Kan must be called three times, and as a result, the tenpai hand will have at most four tiles in its closed section. If necessary, the hand can call again to have a single tile remaining.

Development

Of all the standard yaku, sankantsu is the most difficult and least frequent. It appears less often than several yakuman, including rarer yakuman like suuankou tanki, tsuuiisou, and shousuushii.

  • Being able to call 3 kans is difficult on its own. You must draw 3 of the same type of type by yourself, then draw/call the 4th, three separate times.
  • Players may not want to call kan even if they are able. Each kan reveals kandora; this is already risky after one kan, let alone three. And until you get the 3rd kan, you won't have any guaranteed yaku (thus making the 1st and 2nd calls even more dubious).
  • Even when someone is tenpai for sankantsu, the hand can end in the event another player calls kan for a fourth time, invoking an abortive draw.

Overall, this yaku is not worth its measly 2 han value.

If the player calls kan for a fourth time, the hand instead gains the yakuman, suukantsu.

Compatibility

^ Ippatsu requires riichi to be of any use.

RCH DRI IPP SMO TAN PFU IPK ITT YAK SDJ SDO TOI SNA SNK CHA JUN RPK SSG HRO HON CHN CHI RIN HAI HOU CHK
SNK

Three out of the four tile groups must be called for kan, which are treated as triplets. This leaves no room for iipeikou, ryanpeikou, ittsu, and sanshoku doujun. Pinfu and chiitoitsu forbid kan calls and are thus not compatible. Every other yaku is compatible.

Value

This yaku is set at 2 han. However, the number of kans will increases the hand's value through fu and (potentially) kandora.

At minimum, a hand with sankantsu is worth 2 han and 50 fu (3200 points), which is equivalent to 3 han and 25 fu. To reach the minimum score, you must have 3 open kan composed of simples (tiles 2-8). Each open simple kan is worth 8 fu, for a total of 24 additional fu to the base 20. The net total of 44 fu is rounded up to 50 fu.

External links

Sankantsu in Japanese Wikipedia