Suukantsu: Difference between revisions

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

VisualWikitext

Latest revision as of 13:21, 10 April 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 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 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.
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 of those tiles by self draw. That feat is already worth a yakuman, that being suuankou. In addition, a hand that could be suuankou is unlikely to call an open kan, because it's much easier to win with suuankou.
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.
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.
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.

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

四槓子

Suukantsu in Japanese Wikipedia

@@ Line 8: / Line 8: @@
 |yakuCombine = * [[Daisangen]]
 * [[Suuankou]]
-* [[Shousuushi]]
+* [[Shousuushii]]
-* [[Daisuushi]]
+* [[Daisuushii]]
 * [[Ryuuiisou]]
 * [[Chinroutou]]
@@ Line 15: / Line 15: @@
 * [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]
 }}
-'''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.  Of all the hands possible, suukantsu is the rarest.  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.
+'''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 rarer than [[tenhou and chiihou|tenhou or chiihou]]. It is also the longest, requiring 18 tiles total.
 ==Tile pattern==
@@ Line 23: / 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 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 closed triplet and calls kan on a discarded fourth.
+* A player has a pair and calls pon, then draws the fourth to [[shouminkan|call kan]].
-* A player draws all four of a tile type and calls 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]].
-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.
+*You must obtain 3/4 of those tiles by self draw. That feat is already worth a yakuman, that being [[suuankou]]. In addition, a hand that could be suuankou is unlikely to call an open kan, because it's much easier to win with suuankou.
+*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.
+*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.
+*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.
-===Pitfalls===
+Finally, like any other yakuman, another player could have a faster hand and win before you.
-The difficulty of this yakuman stems from the numerous pitfalls during its hand development.
-* Another player developing and winning with a faster and easier hand.  This may be the case for any hand.
-* The winning tile is made unavailable, which again may be the case for any hand.
-* 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.
-* 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 dangerous tiles.
 ==Value==
-Despite the greater degree of difficulty and exceptionally low freqency, 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==
 {{jpwiki|四槓子}}
 [[Category:Yakuman]]
 {{Navbox yaku}}