Sanshoku doukou
Sanshoku doukou 「三色同刻」 is a standard yaku. This yaku involves koutsu (triplets) of the same numbered tiles across the three main suits.
| Type | Yaku |
|---|---|
| Kanji | 三色同刻 |
| English | Three colored triplets |
| Value | 2 han |
| Speed | Very slow |
| Difficulty | Very hard |
Tile pattern cases
For this sanshoku doukou there are cases where the yaku is guaranteed and cases where it is not.
Case where sanshoku doukou is guaranteed
Agari: 
or 
Here, all three koutsu of number three are already on the hand, and sanshoku doukou is guaranteed for both tiles waited on.
Case where sanshoku doukou is not guaranteed
Agari:
Note: This hand is also waiting for , but that would not give sanshoku doukou.
Agari:
Note: This hand is also waiting for , but that would not give sanshoku doukou.
Formation
This yaku is actually a fairly difficult yaku to complete. For every number across the three different suits, there are only 12 tiles. A sanshoku douko hand has to have 9 of the 12 tiles of one number. The 3 tiles of that number not in the hand has to be one of each suit, which yields pretty bad odds.
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 | |
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Value
Whether open or closed, this yaku remains at 2 han.
External links
- Sanshoku doukou in Japanese Wikipedia