Daisangen: Difference between revisions

Daisangen
Type	Yakuman
Kanji	大三元
English	Big three dragons
Value	Yakuman
Speed	Slow
Difficulty	Hard

VisualWikitext

Revision as of 16:50, 19 March 2024

Daisangen 「大三元」 is a standard yakuman. In English, it can be shortened to "DSG". This yakuman involves the collection of all three tile groups of the sangenpai (dragon tiles).

Tile pattern

Agari:

Note: This hand is also winnable with

, but this hand would be shousangen instead.

Development

Daisangen is one of the three yakuman gosanke 「役満御三家」, or "the three big families of yakuman", along with suuankou and kokushi musou. Of the three yakuman listed here, daisangen is the only one that can be played open.

As the name implies, this yakuman depends on all three dragons. If at least two copies of a dragon tile are unavailable, then completing a triplet becomes impossible, thus preventing the yakuman.

Viability

Most instances of daisangen involve open calls for the dragon tiles. Therefore, one of the more reasonable hand states involve three pairs of the dragon tiles. That gives a player the opportunity to call on those tiles or at least have a shanpon tenpai involving one of the dragons. On occasion, a very lucky player could develop a completely closed hand with the yakuman embedded.

Sekinin barai

Main article: Sekinin barai

The rule of sekinin barai (or pao) may apply to daisangen. It applies when a player has made open calls (pon/kan) with two of the dragons. When another player discards the third dragon, and that dragon is called to complete the yakuman, then the discarder is liable to pay for the yakuman.

If the yakuman hand wins via ron, the discarder and ronned player each pay half. If the yakuman hand wins via tsumo, the discarder pays the entire hand. This effectively punishes a player for guaranteeing a yakuman. However, even if the third dragon is called to complete a kan, sekinin barai still applies.

External links

大三元

Daisangen in Japanese Wikipedia

麻雀-役満藤川孝治の大三元-New Wave Cup/MONDO TV (YouTube)

Daisangen scored in the New Wave Cup

麻雀-役満プロ雀士-滝沢和典の大三元モンド麻雀プロリーグ第11回モンド杯/MONDO TV (YouTube)

Path of Houou blog entry

Statistical analysis of pao

@@ Line 16: / Line 16: @@
 * [http://tenhou.net/0/?log=2014040608gm-000f-0000-be3f42d6&tw=3&ts=10 DSG] with [[tsuuiisou]]
 }}
-'''Daisangen''' {{kana|大三元}} is a standard [[List of yaku#Yakuman|yakuman]].  In English, it can be shortened to "DSG".  This yakuman involves the collection of all three tile groups of the [[sangenpai]] (dragon tiles).  It is one of the three '''yakuman gosanke''' {{kana|役満御三家}}, or "the three big families of yakuman".
+'''Daisangen''' {{kana|大三元}} is a standard [[List of yaku#Yakuman|yakuman]].  In English, it can be shortened to "DSG".  This yakuman involves the collection of all three tile groups of the [[sangenpai]] (dragon tiles).
 ==Tile pattern==
@@ Line 27: / Line 26: @@
 [[Image:Kyuu Yakuman Sega 00.png|thumb|right|250px|Daisangen in Sega Mahjong.]]
 [[Image:Real DSG pao.jpg|thumb|right|250px|Daisangen pao tsumo, with [[kamicha]] (left) fully liable.]]
-As the name implies, this yakuman depends on all three dragons.  In the event where one dragon type is not available as a triplet, then this yakuman is no longer possible.
+Daisangen is one of the three '''yakuman gosanke''' {{kana|役満御三家}}, or "the three big families of yakuman", along with [[suuankou]] and [[kokushi musou]]. Of the three yakuman listed here, daisangen is the only one that can be played [[naki|open]].
+As the name implies, this yakuman depends on all three dragons. If at least two copies of a dragon tile are unavailable, then completing a triplet becomes impossible, thus preventing the yakuman.
 ===Viability===
-Most instances of daisangen involve open calls for the dragon tiles.  Therefore, one of the more reasonable hand states involve three pairs of the dragon tiles.  That gives a player the opportunity to call on those tiles or at least have a [[shanpon]] tenpai involving one of the dragons.  On occasion, a very lucky player could develop a completely closed hand with the yakuman embedded.  This may leave players unsuspecting.
+Most instances of daisangen involve open calls for the dragon tiles.  Therefore, one of the more reasonable hand states involve three pairs of the dragon tiles.  That gives a player the opportunity to call on those tiles or at least have a [[shanpon]] tenpai involving one of the dragons.  On occasion, a very lucky player could develop a completely closed hand with the yakuman embedded.
-The chances for daisangen can be rendered impossible for a hand, if at least 2 out of 4 tiles of any dragon type is discarded or made unavailable.
 ===Sekinin barai===
 {{main|Sekinin barai}}
-The rule of [[sekinin barai]] applies to daisangen in the form of yakuman '''pao'''.  This occurs when a player seeking to develop this yakuman already had made [[naki|open calls]] (pon) with two out of the three possible dragon types.  The rule is then invoked when the third type is discarded and called to complete the yakuman portion of the hand.  So, the call upgrades the hand into a very obviously open daisangen. Even if the third dragon was called to complete a [[kan]], this rule still applies.  That third discarder becomes partially liable or fully liable for that play.
+The rule of [[sekinin barai]] (or pao) may apply to daisangen. It applies when a player has made [[naki|open calls]] (pon/kan) with two of the dragons. When another player discards the third dragon, and that dragon is called to complete the yakuman, then the discarder is liable to pay for the yakuman.
+If the yakuman hand wins via ron, the discarder and ronned player each pay half. If the yakuman hand wins via tsumo, the discarder pays the entire hand. This effectively punishes a player for guaranteeing a yakuman. However, even if the third dragon is called to complete a [[kan]], sekinin barai still applies.
 ==External links==