Aryanmen: Difference between revisions
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'''Aryanmen''' {{kana|亜両面}} is a variation on the [[ryanmen]] [[machi|waiting pattern]]. Appearing as a complete sequence with one extra tile on either end, it can either be interpreted as "a ryanmen next to the hand's pair" or "a complete sequence with a [[tanki]] wait". Aryanmen is generally weaker than ryanmen, since 2 of the 8 winning tiles are in the hand, though it is better than tanki if a hand needs a pair. | '''Aryanmen''' {{kana|亜両面}} is a variation on the [[ryanmen]] [[machi|waiting pattern]]. Appearing as a complete sequence with one extra tile on an end,<ref>An extra tile on either end works, except for 1233 and 7789.</ref> it can either be interpreted as "a ryanmen next to the hand's pair" or "a complete sequence with a [[tanki]] wait". Aryanmen is generally weaker than ryanmen, since 2 of the 8 winning tiles are in the hand, though it is better than tanki if a hand needs a pair. | ||
== Tile pattern == | == Tile pattern == | ||
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When aryanmen is won with the waiting tile already present in hand, it can be interpreted as either a tanki or ryanmen wait. In this case, the highest-scoring option must be chosen. Normally, this will be the 2 fu for a tanki wait, but if the hand qualifies for the [[pinfu]] [[yaku]], that will be scored instead. | When aryanmen is won with the waiting tile already present in hand, it can be interpreted as either a tanki or ryanmen wait. In this case, the highest-scoring option must be chosen. Normally, this will be the 2 fu for a tanki wait, but if the hand qualifies for the [[pinfu]] [[yaku]], that will be scored instead. | ||
== Formation == | |||
If the hand currently lacks a pair, aryanmen is a relatively easy way to form a 2-sided wait. For each complete sequence you have, there will be 2 types of tile you can draw to form an aryanmen (and another 1-2 types that can form a [[nobetan]]). This can help with [[pinfu]], which aryanmen counts for. However, aryanmen is weaker than ryanmen, since the tile acceptance is only 6 instead of 8. | |||
[[Ryantan]], [[kantan]], and [[pentan]] can be formed in a similar way - by drawing an adjacent tile next to a triplet, you have a 2/3-sided wait for a pair. | |||
== Notes == | |||
{{references}} | |||
== External Links == | == External Links == | ||
Revision as of 14:38, 1 August 2024
| Kanji | 亜両面 |
|---|---|
| English | Pair-attached open wait |
| Fu | Pair dependent |
| Tile types waiting | 2 sided wait |
| Tiles available | 6 tiles |
| Pattern example |
   |
Aryanmen 「亜両面」 is a variation on the ryanmen waiting pattern. Appearing as a complete sequence with one extra tile on an end,[1] it can either be interpreted as "a ryanmen next to the hand's pair" or "a complete sequence with a tanki wait". Aryanmen is generally weaker than ryanmen, since 2 of the 8 winning tiles are in the hand, though it is better than tanki if a hand needs a pair.
Tile pattern
Waiting for: 
In this example, the underlying ryanmen wait is based on the 67m, but additionally, 567m can be viewed as a complete sequence, in which case the other 5m creates a pair wait.
Scoring
When aryanmen is won with the waiting tile not already present in hand, the wait can only be interpreted as a ryanmen wait, and it will score 0 fu.
When aryanmen is won with the waiting tile already present in hand, it can be interpreted as either a tanki or ryanmen wait. In this case, the highest-scoring option must be chosen. Normally, this will be the 2 fu for a tanki wait, but if the hand qualifies for the pinfu yaku, that will be scored instead.
Formation
If the hand currently lacks a pair, aryanmen is a relatively easy way to form a 2-sided wait. For each complete sequence you have, there will be 2 types of tile you can draw to form an aryanmen (and another 1-2 types that can form a nobetan). This can help with pinfu, which aryanmen counts for. However, aryanmen is weaker than ryanmen, since the tile acceptance is only 6 instead of 8.
Ryantan, kantan, and pentan can be formed in a similar way - by drawing an adjacent tile next to a triplet, you have a 2/3-sided wait for a pair.
Notes
- ↑ An extra tile on either end works, except for 1233 and 7789.
External Links
- Aryanmen in Japanese Wikipedia
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