Haitei raoyue and houtei raoyui: Difference between revisions

Haitei raoyue and houtei raoyui
Type	Yaku
Kanji	海底撈月; 河底撈魚
English	Win by last draw; Win by last discard
Value	1 han
Speed	Very Slow
Difficulty	Luck

VisualWikitext

Revision as of 04:05, 17 August 2024

'Haitei raoyue 「海底撈月」, or haitei for short, is a yaku scored when a player wins by tsumo on the last drawable tile from the live wall.

Houtei raoyui 「河底撈魚」, or houtei for short, is scored when a player wins by ron on the last possible discard. The discarded tile does not have to be the tile just drawn by the player.

It is possible to win even if the hand's only yaku is haitei/houtei.

Haiteihai and houteihai

The haiteihai 「海底牌」 is the very last tile that can be drawn from the regular wall. It is always the 15th tile left from the end, counting the tiles of the dead wall. Typically, it is the bottom tile. Calls for kan may shift the designation of the last tile, as when kan is called, the current haiteihai is shifted to the dead wall to accommodate for the rinshan draw. In some groups, the tile may physically be moved from the live wall into the dead wall to make it clearer when the hand ends, but this generally not done in professional play.

Likewise, the very last discard is called houteihai 「河底牌」. The houteihai can never be called for chii, pon, or kan.

If a player calls a kan when there is only one tile left in the live wall, haitei is not scored. Despite being the "last draw" of the game, kan draws from the dead wall. Haitei requires a draw from the live wall, so it is not scored. The final discarded tile after a kan is still valid for houtei.

A player cannot call a kan after drawing the last tile (either normally or as a result of a kan), because they would need to draw a rinshanpai and doing so would bring the dead wall down to 13 tiles.

Compatibility

Main article: Yaku compatibility

^ Ippatsu requires riichi to be of any use.

	RCH	DRI	IPP	SMO	TAN	PFU	IPK	ITT	YAK	SDJ	SDO	TOI	SNA	SNK	CHA	JUN	RPK	SSG	HRO	HON	CHN	CHI	RIN	HAI	HOU	CHK
HAI
HOU

Haitei and houtei are mutually exclusive with each other, with chankan, and with rinshan kaihou. Each of these yaku requires the winning tile to come from a different location (the live wall, a tile added to make a shouminkan, and the dead wall, respectively). Houtei cannot combine with mentsumo because it is only winnable via discards.

As for ippatsu, it is impossible to call riichi unless there are 4 tiles left in the live wall. If riichi is declared with 4 tiles remaining, and no tile calls are made, then the riichi declarer will draw the haiteihai. This means ippatsu can be scored with haitei, but not houtei. Tile calls may shift the draw order, but any tile call will interrupt ippatsu.

Setting up haitei raoyue or houtei raoyui

Like any hand, either yaku requires tenpai at the very last draw and/or discard to even have a chance of winning. At this point, the hand can be any hand, even an open hand. Haitei or houtei would qualify for yaku on each of their own right.

Meaning

The term haitei raoyue translates literally as "scooping up the reflection of the moon from the bottom of the sea." It is a figurative Chinese expression (sometimes used in Japanese as well) use to mean a futile task. houtei raoyui is a pun on this, translating literally as "catching fish from the bottom of the river." The kanji 河 is the term kawa, meaning the discard pond. Hence houtei is a pun referring to both haitei, and the act of catching a fish from the bottom of the discard river.

External links

海底撈月

Haitei raoyue in Japanese Wikipedia

河底撈魚

Houtei raoyui in Japanese Wikipedia

@@ Line 12: / Line 12: @@
 * [http://tenhou.net/0/?log=2015052218gm-00a9-0000-8e283b90&ts=2 Haitei nomi] with [[furiten]]
 }}
-'''Haitei raoyue''' {{kana|海底撈月}} or simply '''Haitei''' is a standard [[yaku]], where a player wins with the tsumo on the '''haiteihai''', the last drawable tile from the live wall.  As such, this yaku is only accessible via tsumo.
+'''Haitei raoyue''' {{kana|海底撈月}}, or '''haitei'' for short, is a [[yaku]] scored when a player wins by [[tsumo]] on the last drawable tile from the live wall.
-'''Houtei raoyui''' {{kana|河底撈魚}} is the ron variant to haitei, which is dependent on the last discarded tile of a hand. So, players making the last discard of the hand must take extra care not to play into another player's hand in this case.
+'''Houtei raoyui'''  {{kana|河底撈魚}}, or '''houtei''' for short, is scored when a player wins by [[ron]] on the last possible discard. The discarded tile does not have to be the tile just drawn by the player.
-The last tile draw and discard is defined by the [[dead wall]].  By rule, the dead wall must retain 14-tiles at all times; and this includes any revealed [[dora|dora indicators]].  Naturally, to score either haitei or houtei, a player must be at [[tenpai]] at the end of the hand just before [[ryuukyoku]].  Finally, hands may definitely be declared for a win, if either haitei or houtei is the only yaku of the hand.
+It is possible to win even if the hand's only yaku is haitei/houtei.
 == Haiteihai and houteihai ==
-'''Haiteihai''' {{kana|海底牌}} is the very last tile that can be drawn from the regular wall.  This is clearly indicated as the 15th tile left, counting the tiles of the dead wall including the [[dora|dora indicator]].  Typically, this tile resides as the lower of two tiles next to the back end of the dead wall.  Earlier calls for [[kan]] may "alter" the designation of the last tile, as that same bottom tile gets shifted into the dead wall to maintain fourteen tiles after the [[rinshan]] draw. In some groups, the tile may physically be moved from the live wall into the dead wall to make it clearer when the hand ends, but this generally not done in advanced play.
+The '''haiteihai''' {{kana|海底牌}} is the very last tile that can be drawn from the regular wall. It is always the 15th tile left from the end, counting the tiles of the dead wall. Typically, it is the bottom tile. Calls for [[kan]] may shift the designation of the last tile, as when kan is called, the current haiteihai is shifted to the dead wall to accommodate for the [[rinshan]] draw. In some groups, the tile may physically be moved from the live wall into the dead wall to make it clearer when the hand ends, but this generally not done in professional play.
-Likewise, the very last discard is called '''houteihai''' {{kana|河底牌}}, which is subject to the call of "ron" for the houtei raoyui yaku and nothing else.  [[Naki|Tile calls]] of chii, pon, or kan cannot apply to it.
+Likewise, the very last discard is called '''houteihai''' {{kana|河底牌}}. The houteihai can never be called for [[chii]], [[pon]], or [[kan]].
-If a player calls a kan when there is only one tile left in the live wall, the rinshanpai will be the last draw of the game. In this situation, the rinshanpai is not considered to be the haiteihai, and if the player calling kan wins off of that tile, it will be eligible only for the [[rinshan kaihou]] yaku and not for haitei. The final discarded tile is, however, considered to be the houteihai and is subject to the same rules as normal, including the prohibition on tile calls and the eligibility for the houtei yaku.
+If a player calls a kan when there is only one tile left in the live wall, haitei is not scored. Despite being the "last draw" of the game, kan draws from the dead wall. Haitei requires a draw from the live wall, so it is not scored. The final discarded tile after a kan is still valid for houtei.
 A player cannot call a kan after drawing the last tile (either normally or as a result of a kan), because they would need to draw a rinshanpai and doing so would bring the dead wall down to 13 tiles.
@@ Line 33: / Line 33: @@
 {{Yaku compatibility table|HAI,HOU}}
-Haitei and houtei are mutually exclusive with each other, with [[chankan]], and with [[rinshan kaihou]].  Each of these yaku requires the winning tile to come from a different location (the live wall, a tile added to make a [[shouminkan]], and the dead wall, respectively).  Houtei cannot combine with [[mentsumo]] because it is only winnable via discards.
+Haitei and houtei are mutually exclusive with each other, with [[chankan]], and with [[rinshan kaihou]]. Each of these yaku requires the winning tile to come from a different location (the live wall, a tile added to make a [[shouminkan]], and the dead wall, respectively).  Houtei cannot combine with [[mentsumo]] because it is only winnable via discards.
-As for [[ippatsu]], it is impossible for the player calling riichi to have the last discard occur within one turn, because there must be at least 4 tiles left in the live wall when calling riichi. If an intervening call was made, which might mean that the player calling riichi would not get another draw, that call alone would disqualify an ippatsu. It is possible, however, for a player to call riichi with exactly four tiles left in the live wall and subsequently get both ippatsu and haitei on their next draw.
+As for [[ippatsu]], it is impossible to call riichi unless there are 4 tiles left in the live wall. If riichi is declared with 4 tiles remaining, and no [[tile calls]] are made, then the riichi declarer will draw the haiteihai. This means ippatsu can be scored with haitei, but not houtei. Tile calls may shift the draw order, but any tile call will interrupt ippatsu.
 == Setting up haitei raoyue or houtei raoyui==