Entotsu
Entotsu 「エントツ」 is a combination wait pattern, that utilizes two basic patterns: ryanmen and shanpon. Together, the pattern produces a 3-sided wait, or waits on three tile types.
| Kanji | エントツ |
|---|---|
| Fu | Triplet dependent |
| Tile types waiting | 3 sided wait |
| Tiles available | 7 tiles |
| Tenhou.net example |
Tile pattern
Waiting for: 
, , or
The pattern consists of middle numbered tiles and an extra pair of any other tiles. If the numbered tiles included terminals, then the pattern is a simple shanpon.
Example: Not entotsu
Waiting for: or
If a 10-man tile exists, then this would be entotsu; but of course, that is not the case.
Fu
This tile pattern does not reward fu on its own. Instead, fu is earned via the composition of the triplet. Regardless of the winning tile, the pattern guarantees one triplet.
Double entotsu
Waiting for: 
, , , or
The wait pattern can be doubled, such that it occurs into one hand. Essentially, they can be viewed as a pair of ryanmen. However, this pattern is not possible without the entotsu patterns.
External links
- Entotsu in Japanese Wikipedia