Honiisou: Difference between revisions

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* [http://tenhou.net/0/?log=2010050814gm-0009-0000-debfc0f3&tw=2&ts=12 Closed honitsu]
* [http://tenhou.net/0/?log=2010050814gm-0009-0000-debfc0f3&tw=2&ts=12 Closed honitsu]
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'''Honiisou''' {{kana|混一色}} is a standard [[yaku]]. Normally translated as a "half flush", this yaku features a hand composed only of honour tiles and tiles of a single suit. If the hand contains no honor tiles, then the [[chinitsu]] yaku is counted instead.
'''Honiisou''' {{kana|混一色}} (often called '''honitsu''' {{kana|混一}}) is a standard [[yaku]]. Normally translated as a "half flush", this yaku features a hand composed only of honor tiles and tiles of a single suit. If the hand contains no honor tiles, then the [[chinitsu]] yaku is counted instead.


==Tile pattern==
==Tile pattern==
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==Formation==
==Formation==
Naturally, it is easier to form honitsu when your hand starts with many tiles of the same suit. It is often unwise to break up a completed group of a different suit to force honitsu (though if you ''really'' need points, it's possible).


=== Detection ===
=== Detection ===
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{{Yaku compatibility table|HON}}
{{Yaku compatibility table|HON}}


Honitsu is aligned to a single suit.  Therefore, this yaku is compatible with other yaku, that follows that pattern; and multiple suited yaku do not apply, namely [[sanshoku]] and [[sanshoku doukou]].  Naturally, the "single suited" yaku of [[ittsu]] can merge with honitsu, only if the fourth [[mentsu|tile group]] is of the same suit or is a set of honours. Other yaku are able to function with multiple suits; but they are also possible using single suits, namely [[toitoi]] and [[sanankou]].  The same applies for [[chiitoitsu]].  Commonly, this yaku works with [[yakuhai]], and likewise, [[shousangen]].
Most yaku which allow one suit of tiles are compatible with honitsu. This excludes [[sanshoku]] and [[sanshoku doukou]], which require use of all three suits. Honitsu is not compatible with [[chinitsu]], because every chinitsu hand is honitsu. Honitsu combined with [[tanyao]] or [[junchan]] would actually imply chinitsu instead, since there would be no honours.


Of course, honitsu is not compatible with [[chinitsu]], because every chinitsu hand is honitsu. Honitsu combined with [[tanyao]] or [[junchan]] would actually imply chinitsu instead, since there would be no honours.
Honitsu is commonly paired with with [[yakuhai]] (calling [[pon]] for honor tiles helps speed the hand), [[ittsu]] (which already has 9 tiles of the same suit), and [[shousangen]] (which already has 8 honor tiles).


==Value==
==Value==
This yaku is affected by [[kuisagari]]. The hand value decreases by 1 han when open. Honitsu can still be used for open hands, though. When combined with other yaku and/or dora, the speed increase can be well worth the -1 han. For example, honitsu + yakuhai + dora 1 is worth ~7700 (4 han 30 fu), and the +1 han from closed only brings it up to 8000 (5 han) without [[riichi]].


=== Bakahon ===
=== Bakahon ===
'''Bakahon''' {{kana|バカホン}} is a slang term for a basic honitsu with [[naki|open calls]]. No other [[han]] are scored, either from [[yaku]] or [[dora]], meaning that the hand will score low (usually 2000-3000 points).
'''Bakahon''' {{kana|バカホン}} is a slang term for a honitsu-only hand with [[naki|open calls]] and no dora. This hand only scores 2000 points, which is not worth the amount of effort required for honitsu. (Since every 1 [[han]] doubles the score until 8000, even something like open honitsu + 1 dora is worthwhile.)


==External links==
==External links==
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