Suuankou: Difference between revisions

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|yakuCombine = * [[Daisangen]]
|yakuCombine = * [[Daisangen]]
* [[Chinrotou]]
* [[Chinrotou]]
* [[Shousuushi]]
* [[Shousuushii]]
* [[Daisuushi]]
* [[Daisuushii]]
* [[Ryuuiisou]]
* [[Ryuuiisou]]
* [[Tsuuiisou]]
* [[Tsuuiisou]]
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'''Suuankou''' {{kana|四暗刻}} is one of the standard [[yakuman]] hands. This hand consists of four concealed [[Mentsu#Ankou|triplets]] and a pair.  If the hand is on a [[shanpon]] wait, the winning tile must be a [[tsumo|self-drawn]] and not as a [[ron|discard]] of another player.  A win by discard may render the fourth triplet as an "open" triplet.  Thus, the condition for the yakuman would not be met.
'''Suuankou''' {{kana|四暗刻}}, literally "four [[ankou|closed triplets]]", is a [[yakuman]] scored when a hand has four closed triplets and a pair.


Then there is '''suuankou tanki''' {{kana|四暗刻単騎}}, which features the hand with a [[tanki]] [[Machi|wait]].  The hand in this state may win from another player's discard, and it'll still count for the yakuman.  In this case, all four triplets are present in the hand.  A hand of this pattern may count [[Multiple yakuman|double yakuman]], as an added [[Yaku_variations#Multiple_yakuman|variation]].
If the hand is on a [[shanpon]] wait (two pairs waiting to complete a triplet), the winning tile must be a [[tsumo|self-draw]] ([[tsumo]]) and not a [[ron|discard]] from another player ([[ron]]). While ron does not open the hand, it does open the resulting ''triplet'', which means the 4th triplet is not closed, invalidating the yakuman.


For either type of suuankou, either the shanpon or the tanki variety, the hand must be closed only in order to count for yakuman. So, none of the triplets must have been claimed from other players' discards.  An "all triplet" hand with open calls would then either count for [[toi toi]], [[sanankou]], or both.
'''Suuankou tanki''' {{kana|四暗刻単騎}} is scored when the hand is on a [[tanki]] [[wait]], i.e. it has completed the four triplets by tenpai. The hand may win from another player's discard, counting for a yakuman. A hand of this pattern may count [[Multiple yakuman|double yakuman]], as an added [[Yaku variations#Multiple_yakuman|variation]].
 
Regardless of the wait, suuankou must be scored with a [[closed]] hand; none of the triplets can be called from other players' discards.  An "all triplet" hand with open calls would then either count for [[toitoi]], [[sanankou]], or both.


==Tile diagram==
==Tile diagram==
{{#mjt: 55666p11188s666z}} Agari: {{#mjt: 5p}} or {{#mjt: 8s}}.  
{{#mjt: 55666p11188s666z}} Tsumo: {{#mjt: 5p}} or {{#mjt: 8s}}.  


Either tile must be won by tsumo.  Otherwise, this hand is [[toitoi]] and [[sanankou]].
Either tile must be won by tsumo.  Otherwise, this hand is [[toitoi]] and [[sanankou]].
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:{{#mjt: 888p333444s9m222z}} Agari: {{#mjt:9m}}
:{{#mjt: 888p333444s9m222z}} Agari: {{#mjt:9m}}


This wait is sometimes considered to be worth [[multiple yakuman|double yakuman]], if won by [[tsumo|self-draw]]. Either way, yakuman is likely guaranteed with the winning tile.  If the tanki wait is combined with [[Complex_machi#Ryanmen_with_tanki|additional patterns]], then the yakuman may not be guaranteed.
The hand scores a yakuman whether the 9-man is won via tsumo or ron. It can be considered a double yakuman in some rulesets.


'''Example 2'''
'''Example 2'''


:{{#mjt:333p2223777s}} {{#mjt:0z11s0z}} Agari: {{#mjt:1s}} (unavailable), {{#mjt:3s}}, and {{#mjt:4s}} <ref>http://tenhou.net/0/?log=2014120608gm-00c1-0000-0d17db7f&tw=0&ts=6</ref>
:{{#mjt:333p2223777s}} {{#mjt:0z11s0z}} [[Takame]]: {{#mjt:3s}} [[Yasume]]: {{#mjt:1s}} (unavailable), {{#mjt:4s}} <ref>http://tenhou.net/0/?log=2014120608gm-00c1-0000-0d17db7f&tw=0&ts=6</ref>


Even with [[takame and yasume|multiple waits allowing the hand to win]], only one produces the yakuman.
If the tanki wait is combined with [[Ryantan|additional patterns]], then the yakuman may not be guaranteed. The hand has multiple waits allowing the win, but only one (3-sou) produces the yakuman.


==Value==
==Value==
This hand is automatically a [[Scoring table|yakuman hand]], won by [[mentsumo|tsumo]] using a [[shanpon]] (tenpai holding two pairs) or any win if using a [[tanki]] (one tile waiting for a duplicate). 


This hand is automatically a [[Scoring table|yakuman hand]], won by [[mentsumo|tsumo]] using a [[shanpon]] (tenpai holding two pairs) or any win if using a [[tanki]] (one tile waiting for a duplicate). Variable rules may allow the tanki version to count double that of the yakuman points, if won via tsumo.
Variants may allow suuankou tanki to count as a double yakuman. Most rules allow the double yakuman no matter how its won; a few rules award the double yakuman if the hand is completed by [[tsumo]].


==Formation==
==Formation==
All four of the triplets must be concealed for this hand to be counted as a yakuman. [[Naki|Tile calls]] of [[kan|closed kans]] are acceptable, as the closed kan also counts as a closed triplet. The difficulty of this yakuman stems from the need to draw at least 3 out of 4 of a single tile type, for four different tile types.  [[Naki|Discard calling]] to attain tiles immediately removes any chance of forming this yakuman.
[[Image:Real suuankou.jpg|thumb|right|250px|Suuankou tsumo on 9-sou.]]
 
All four of the ''triplets'' must be concealed for this hand to be counted as yakuman. As mentioned above, if a triplet is completed via ron, then the triplet is not considered concealed. Therefore, if the hand has a [[shanpon]] wait, it can only win by tsumo. [[Kan|Closed kan]]s are acceptable, as kans are considered triplets. Of course, calling [[pon]] automatically invalidates the yakuman.  


With a [[shanpon]] wait, one of the pairs is upgraded into a triplet.  If this method of completion is done by discard, then that fourth triplet is considered to be "open".  So instead of yakuman, the hand would instead be counted as a combination of [[toitoi]] and [[sanankou]], at least.
Suuankou is one of the three '''yakuman gosanke''' {{kana|役満御三家}}, or "the three big families of yakuman", along with [[kokushi musou]] and [[daisangen]]. These are the three most common yakuman in the game. Suuankou itself is the most common yakuman in 4-player, likely because it can be formed from any type of tile. The difficulty of this yakuman stems from the need to draw at least 3 out of 4 of a single tile type, for four different tile types.


==References==
==References==

Latest revision as of 08:12, 14 September 2024

Suuankou
Type Yakuman
Kanji 四暗刻
四暗刻単騎
English Four concealed triplets
Same with pair wait
Value Yakuman
Speed Slow
Difficulty Hard

Suuankou 「四暗刻」, literally "four closed triplets", is a yakuman scored when a hand has four closed triplets and a pair.

If the hand is on a shanpon wait (two pairs waiting to complete a triplet), the winning tile must be a self-draw (tsumo) and not a discard from another player (ron). While ron does not open the hand, it does open the resulting triplet, which means the 4th triplet is not closed, invalidating the yakuman.

Suuankou tanki 「四暗刻単騎」 is scored when the hand is on a tanki wait, i.e. it has completed the four triplets by tenpai. The hand may win from another player's discard, counting for a yakuman. A hand of this pattern may count double yakuman, as an added variation.

Regardless of the wait, suuankou must be scored with a closed hand; none of the triplets can be called from other players' discards. An "all triplet" hand with open calls would then either count for toitoi, sanankou, or both.

Tile diagram

Tsumo: or .

Either tile must be won by tsumo. Otherwise, this hand is toitoi and sanankou.

Tanki

Example 1:

Agari:

The hand scores a yakuman whether the 9-man is won via tsumo or ron. It can be considered a double yakuman in some rulesets.

Example 2

Takame: Yasume: (unavailable), [1]

If the tanki wait is combined with additional patterns, then the yakuman may not be guaranteed. The hand has multiple waits allowing the win, but only one (3-sou) produces the yakuman.

Value

This hand is automatically a yakuman hand, won by tsumo using a shanpon (tenpai holding two pairs) or any win if using a tanki (one tile waiting for a duplicate).

Variants may allow suuankou tanki to count as a double yakuman. Most rules allow the double yakuman no matter how its won; a few rules award the double yakuman if the hand is completed by tsumo.

Formation

Suuankou tsumo on 9-sou.

All four of the triplets must be concealed for this hand to be counted as yakuman. As mentioned above, if a triplet is completed via ron, then the triplet is not considered concealed. Therefore, if the hand has a shanpon wait, it can only win by tsumo. Closed kans are acceptable, as kans are considered triplets. Of course, calling pon automatically invalidates the yakuman.

Suuankou is one of the three yakuman gosanke 「役満御三家」, or "the three big families of yakuman", along with kokushi musou and daisangen. These are the three most common yakuman in the game. Suuankou itself is the most common yakuman in 4-player, likely because it can be formed from any type of tile. The difficulty of this yakuman stems from the need to draw at least 3 out of 4 of a single tile type, for four different tile types.

References

External links

Suuankou in Japanese Wikipedia