Suukantsu: Difference between revisions

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

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Revision as of 04:07, 20 March 2024

Suukantsu 「四槓子」 is a standard yakuman obtained when the hand has called kan four times. As a result, it always has a hadaka tanki machi, because four tile calls are required. Suukantsu is the rarest hand in the game, even more rare 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 uses hadaka tanki. In order to call a single kan, a player must draw at least 3 out of 4 of a single tile type under any of these three scenarios:

* A player has a pair and calls pon.  Then draws the fourth to call kan.t

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.

For this yakuman, a player must repeat any of those kan calls four times. This yakuman is the most difficult yakuman to attain tenpai, let alone score.

You must obtain a total of 4/4 tiles of four different types. If any tile is rendered unavailable (e.g. in an opponents hand, in the dead wall), the hand is practically impossible.
You must obtain 3/4 tiles of four different types by self draw. This feat is already worth a yakuman, that being suuankou.
After the third kan, any other player may call kan to trigger the suukaikan hand abortion (if the ruleset allows abortive draws).
Calling four kans adds four kan dora, which will greatly boost the value of others' hands.
Calling four kans immediately reveals you have a yakuman hand, so players are likely to defend.
The hand always has a hadaka tanki wait. In addition to being difficult to win off, it leaves you with no room to defend.

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

四槓子

Suukantsu in Japanese Wikipedia

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 }}
-'''Suukantsu''' {{kana|四槓子}} is a standard [[yakuman]], where the hand has collected [[kan]] four times.  As a result, this hand always has uses a [[Tanki|hadaka tanki machi]], because four [[naki|tile calls]] are required.  Unlike all the other patterns, this yakuman cannot afford to have particular tiles unavailable via discards, the [[dead wall]], or used in other player's hands.  By far, it is the longest possible hand in the game, requiring 18-tiles.  Of all the hands possible, suukantsu is the rarest.  It is even more rare than either [[Tenhou and chiihou|tenhou]] or [[Tenhou and chiihou|chiihou]].
+'''Suukantsu''' {{kana|四槓子}} is a standard [[yakuman]] obtained when the hand has called [[kan]] four times. As a result, it always has a [[Tanki|hadaka tanki machi]], because four [[naki|tile calls]] are required. Suukantsu is the rarest hand in the game, even more rare than [[tenhou and chiihou|tenhou or chiihou]]. It is also the longest, requiring 18 tiles total.
 ==Tile pattern==
@@ Line 24: / Line 24: @@
 {{#mjt:4z}} {{#mjt:0z44p0z1'111m777'7s0660z}} Agari: {{#mjt:4z}}
-==Viability==
+==Development==
-This yakuman requires four kan calls.  As a result, the hand in [[tenpai]] always uses [[Tanki|hadaka tanki]].  In order to call a single kan, a player must draw at least 3 out of 4 of a single tile type under any of these three scenarios:
+[[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].]]
-* A player has a pair and calls pon.  Then draws the fourth to [[shouminkan|call kan]].
+This yakuman requires four kan calls. As a result, the hand in [[tenpai]] always uses [[Tanki|hadaka tanki]]. In order to call a single kan, a player must draw at least 3 out of 4 of a single tile type under any of these three scenarios:
+ * A player has a pair and calls pon.  Then draws the fourth to [[shouminkan|call kan]].t
 * 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]].
-For this yakuman, a player must repeat any of those kan calls four times.  This yakuman is the most difficult yakuman to attain tenpai, let alone score.  If any of those tiles are rendered unavailable for kan, it forces the hand to seek other possible tiles to call kan with; or the hand is made virtually impossible.
+For this yakuman, a player must repeat any of those kan calls four times. This yakuman is the most difficult yakuman to attain tenpai, let alone score.
+*You must obtain a total of 4/4 tiles of four different types. If any tile is rendered unavailable (e.g. in an opponents hand, in the dead wall), the hand is practically impossible.
-===Pitfalls===
+*You must obtain 3/4 tiles of four different types by self draw. This feat is already worth a yakuman, that being [[suuankou]].
-[[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].]]
+*After the third kan, any other player may call kan to trigger the [[suukaikan]] hand abortion (if the ruleset allows abortive draws).
-The difficulty of this yakuman stems from the numerous pitfalls during its [[Tile efficiency|hand development]].  Any one of these scenarios can prevent this yakuman from completion.
+*Calling four kans adds four kan dora, which will greatly boost the value of others' hands.
+*Calling four kans immediately reveals you have a yakuman hand, so players are likely to defend.
-* Another player developing and winning with a faster and easier hand.  This may be the case for any hand.
+*The hand always has a hadaka tanki wait. In addition to being difficult to win off, it leaves you with no room to defend.
-* The winning tile is made unavailable, which again may be the case for any hand.
-* The player had avoided calling kan(s), in order to deny any additional dora.
-* The player has called [[pon]] on a tile type, but the fourth tile was not available - either discarded earlier, drawn by another player, or in the dead wall.
-* The added kan to a previously called pon may be subject to [[chankan]].
-* Another player has called kan.  This prevents one player from calling kan four times.
-* Hadaka tanki may create a perilous situation, where the last remaining tile and drawn tile are both dangerous tiles.
-* Finally, the hand itself has to win just like any other hand.  With a yakuman showing at the table, players commit towards defending against hadaka tanki.
 ==Value==
-Despite the greater degree of difficulty (Of particular note, unless a dead wall draw is used to form a meld, all hands viable for suukantsu could have been used for a [[suuankou]] while the converse is not true) and exceptionally low frequency of occurrence, the value remains as that of the other single yakuman.
+Despite the greater degree of difficulty and exceptionally low frequency of occurrence, the value remains as that of the other single yakuman.
 ==External links==