Suukantsu: Difference between revisions

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|value      = Yakuman
|value      = Yakuman
|yakuSpeed  = Extremely slow
|yakuSpeed  = Extremely slow
|difficulty  = Extremely hard
|difficulty  = The most difficult
|yakuCombine = * [[Daisangen]]
|yakuCombine = * [[Daisangen]]
* [[Suu ankou]]
* [[Suuankou]]
* [[Shousuushi]]
* [[Shousuushii]]
* [[Daisuushi]]
* [[Daisuushii]]
* [[Ryuuiisou]]
* [[Ryuuiisou]]
* [[Chinrotou]]
* [[Chinroutou]]
|gameExample = [http://tenhou.net/0/?log=2009110921gm-0029-0000-ad0f061b&tw=1&ts=2] - [http://tenhou.net/0/?log=2013020807gm-0009-7447-8494ff98&tw=2&ts=2]
|gameExample = * [http://tenhou.net/0/?log=2009110921gm-0029-0000-ad0f061b&tw=1&ts=2 Single suited]
* [http://tenhou.net/0/?log=2013020807gm-0009-7447-8494ff98&tw=3&ts=2 With chinroutou]
* [http://tenhou.net/0/?log=2010101720gm-0009-0000-4e36568a&tw=2&ts=1 Four daiminkan]
* [http://tenhou.net/0/?log=2016051320gm-00c1-0000-3e439565&tw=2&ts=3 With suuankou]
}}
}}
'''Suu kantsu''' (四槓子) is a standard [[List of yaku:#Yakuman|Yakuman]], where the hand has collected kan four times. As a result, this hand always has uses a [[Tanki|hadaka tanki machi]], because four tile calls are required.
 
'''Suukantsu''' {{kana|四槓子}} is a [[yakuman]] scored when the hand has called [[kan]] four times. Suukantsu is the rarest hand in the game, even rarer than [[tenhou and chiihou|tenhou or chiihou]]. It is also the longest, requiring 18 tiles total.


==Tile pattern==
==Tile pattern==
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{{#mjt:4z}} {{#mjt:0z44p0z1'111m777'7s0660z}} Agari: {{#mjt:4z}}
{{#mjt:4z}} {{#mjt:0z44p0z1'111m777'7s0660z}} Agari: {{#mjt:4z}}


==Formation==
==Development==
This yakuman requires four kan calls. As a result, the hand in [[tenpai]] always uses [[Tanki|hadaka tanki]]. This yakuman is the most difficult yakuman to score, due to the need to acquire all four of a tile type - four times. If any of those tiles are unavailable, it forces the hand to seek other possible tiles to call kan with; or the hand is made unachievable.
[[Image:Hadakabind.png|thumb|250px|right|Suukantsu tenpai with an [http://tenhou.net/0/?log=2014031007gm-0009-7447-xfcc2dd624f0d&tw=3 inescapable hadaka tanki situation].]]
 
This yakuman requires four kan calls. As a result, the hand in [[tenpai]] always has a [[Tanki|hadaka tanki]] wait. In order to call each kan, a player must draw at least 3 out of 4 tiles of a single tile type:
* A player has a pair and calls pon, then draws the fourth to [[shouminkan|call kan]].
* A player has a closed triplet and [[daiminkan|calls kan]] on a discarded fourth.
* A player draws all four of a tile type and [[ankan|calls kan]].
 
Since suukantsu requires a player to draw into four closed triplets, any hand that scores suukantsu would also have met the requirements for the significantly easier [[suuankou]]. Since they are both worth the same value, there are very few reasons to go for suukantsu.
 
Reasons why suukantsu is so difficult:
*You must obtain a total of 4/4 tiles of four different types, where 3/4 are self drawn.
*If any other player has called kan, the hand becomes impossible. If playing with abortive draws, this will trigger [[suukaikan]]. If playing without, then players are still only allowed a combined total of 4 kans in one game, preventing the yakuman.
*Calling four kans adds a total of four kan dora, which will greatly boost the value of others' hands. A player may not want to kan even once in order to avoid the extra dora.
*Open & added kans are the easiest type of kan, but they require you to open your hand. Since there is no [[yaku]] for a kan until the third kan, committing to an open kan is risky.
*Calling four kans immediately reveals you have a yakuman hand, so players are likely to defend.
*The hand always has a hadaka tanki wait.
 
Finally, like any other yakuman, another player could have a faster hand and win before you.


==Value==
==Value==
Despite the greater degree of difficulty and exceptionally low frequency of occurrence, the value remains as that of the other single yakuman.


==External links==
==External links==
{{jpwiki|四槓子}}
[[Category:Yakuman]]
[[Category:Yakuman]]


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

Latest revision as of 13:01, 24 August 2024

Suukantsu
Type Yakuman
Kanji 四槓子
English Four kans
Value Yakuman
Speed Extremely slow
Difficulty The most difficult

Suukantsu 「四槓子」 is a yakuman scored when the hand has called kan four times. Suukantsu is the rarest hand in the game, even rarer than tenhou or chiihou. It is also the longest, requiring 18 tiles total.

Tile pattern

Agari:

Development

Suukantsu tenpai with an inescapable hadaka tanki situation.

This yakuman requires four kan calls. As a result, the hand in tenpai always has a hadaka tanki wait. In order to call each kan, a player must draw at least 3 out of 4 tiles of a single tile type:

  • A player has a pair and calls pon, then draws the fourth to call kan.
  • A player has a closed triplet and calls kan on a discarded fourth.
  • A player draws all four of a tile type and calls kan.

Since suukantsu requires a player to draw into four closed triplets, any hand that scores suukantsu would also have met the requirements for the significantly easier suuankou. Since they are both worth the same value, there are very few reasons to go for suukantsu.

Reasons why suukantsu is so difficult:

  • You must obtain a total of 4/4 tiles of four different types, where 3/4 are self drawn.
  • If any other player has called kan, the hand becomes impossible. If playing with abortive draws, this will trigger suukaikan. If playing without, then players are still only allowed a combined total of 4 kans in one game, preventing the yakuman.
  • Calling four kans adds a total of four kan dora, which will greatly boost the value of others' hands. A player may not want to kan even once in order to avoid the extra dora.
  • Open & added kans are the easiest type of kan, but they require you to open your hand. Since there is no yaku for a kan until the third kan, committing to an open kan is risky.
  • Calling four kans immediately reveals you have a yakuman hand, so players are likely to defend.
  • The hand always has a hadaka tanki wait.

Finally, like any other yakuman, another player could have a faster hand and win before you.

Value

Despite the greater degree of difficulty and exceptionally low frequency of occurrence, the value remains as that of the other single yakuman.

External links

Suukantsu in Japanese Wikipedia