Iipeikou: Difference between revisions
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=== Common combinations === | === Common combinations === | ||
==External links== | ==External links== | ||
Revision as of 19:26, 24 August 2015
| Type | Yaku |
|---|---|
| Kanji | 一盃口 |
| English |
Identical sequences Double sequences |
| Value | 1 han (closed only) |
| Speed | Medium |
| Difficulty | Easy |
Iipeikou 「一盃口」 is a standard yaku. Its feature composes of two identical sequences. By identical, both shuntsu must be of the same number and same suit. This pattern may also be produced twice in one hand, to form an alternative yaku, ryanpeikou. Finally, the hand must be closed only. A single open call invalidates the yaku, even if the pattern exists within the hand.
Tile pattern
Rearrangement
Arrangement of tiles is irrelevant, as long as two groups of tiles form the identical sequences.
Formation
This yaku is usually presented as three groups of consecutive pairs. However, the rule interpretation views them as a two sequences. Potential acquisition of this yaku is best recognizable when five out of the six tiles are present in the hand.
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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Iipeikou requires two sequences, and as a result is incompatible with sanshoku doukou, toitoi, honroutou, chiitoitsu, sanankou, and sankantsu, all of which require either at least three koutsu/kantsu or a seven pair structure. The final incompatibility is with ryanpeikou, as ryanpeikou implies iipeikou and so iipeikou is not counted.
Common combinations
External links
- Iipeikou in Japanese Wikipedia
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