Sanshoku doujun
Sanshoku doujun 「三色同順」 is a standard yaku. This yaku involves sequences of the same numbered tiles across the three main suits. The short hand sanshoku generally refers to this yaku, rather than the significantly more difficult to achieve sanshoku doukou yaku. It can also be referred as sanshiki 「さんしき」.
| Type | Yaku |
|---|---|
| Kanji | 三色同順 |
| English | Three colored straight |
| Value |
2 han (closed) 1 han (open) |
| Speed | Medium |
| Difficulty | Medium |
Tile pattern
agari :
This hand contains shuntsu of 123 from 3 different main suits. Since this hand played closed, it's sanshoku valued 2 han.
Agari :
Agari : or 
While having same tiles with the first example, these hands played open and hence the sanshoku only valued 1 han.
Value
2 han on closed hand, 1 han on open hand.
Compatability
^ Ippatsu requires riichi to be of any use.
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Takame and yasume
Sanshoku is particularly affected by takame and yasume. At times, the tile wait involves a ryanmen looking for two tile types for the third tile grouping needed for this yaku. In this case, one may result in sanshoku, while the other does not; and the difference here may involve 1 or 2 han.
Agari: 
or 
Only the 6-pin produces sanshoku in this case.
vs ittsu
It is possible for both yaku to have potential development in one hand. However, there is no room in the hand for both yaku to exist. So, when both yaku are apparent, then a point may come during the hand to make a choice between each of the two yaku.
External links
- Sanshoku doujun in Japanese Wikipedia