Honiisou

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Honiisou
Type Yaku
Kanji 混一色
English Half flush
Value 3 han
2 han (open)
Speed Fast
Difficulty Easy
Example(s)
More examples

Honiisou {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 honours, then the chinitsu yaku is counted instead. This yaku is usually referred to as honitsu or, occasionally, honichi.

Tile pattern

Tile-1m.pngTile-1m.pngTile-1m.pngTile-2m.pngTile-3m.pngTile-4m.pngTile-8m.pngTile-8m.pngTile-6z.pngTile-6z.png Tile-3z-e.pngTile-3z.pngTile-3z.png Agari: Tile-8m.png or Tile-6z.png

Bakahon

Bakahon 「バカホン」 is a slang term for a basic honitsu with open calls. No other han are scored, either from yaku or dora, meaning that the hand will score low (usually 2000-3000 points).

Formation

Detection

A player's discard pile may lack one particular suit. This may be an indicator of a honitsu hand being developed.

Compatability

^ 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
HON 13 green check.png 13 green check.png 13 green check.png 13 green check.png 13 grey.png 13 green check.png 13 green check.png 13 green check.png 13 green check.png 13 red x.png 13 red x.png 13 green check.png 13 green check.png 13 green check.png 13 green check.png 13 grey.png 13 green check.png 13 green check.png 13 green check.png 13 red x.png 13 green check.png 13 green check.png 13 green check.png 13 green check.png 13 green check.png

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 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.

Of course, honitsu is not compatible with chinitsu, because every chinitsu hand is honitsu. A honitsu combined with a tanyao would actually imply the chinitsu instead, since there would be no honours. It is also not compatible with junchan, as that would require the hand to contain only 1s and 9s of the same suit, which is only eight available tiles.

Value

External links

Honiisou in Japanese Wikipedia