Sanmenchan: Difference between revisions

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(Revision of terminology for common sanmen wait; minor rephrasing for other named patterns.)
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|gameExample = [http://tenhou.net/0/?log=2014020716gm-0009-7447-c1bce130&tw=0&ts=3 Open]<br>[http://tenhou.net/0/?log=2017110514gm-0089-0000-5752e157&tw=1&ts=4 Furiten]
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'''Sanmenchan''' {{kana|三面張}} is a class of [[machi|wait patterns]] for three-sided waits.  The most common involves a combination of two [[ryanmen]] (open wait). In fact, this is the default form.  This pattern utilizes a string of five consecutive numbered tiles in the hand.  The exact middle tile of this string is one of the waiting tiles, while the other two hand off the edge of the string.  Hands can wait on three kinds of tiles using other forms.  Some of them take names of their own, while others do not.
'''Sanmenchan''' {{kana|三面張}} is a term for any three-sided [[wait]]. It is most often used to describe a "standard sanmenchan"; a string of five consecutive number tiles, it waits on the middle tile or either edge of the run. By default, "sanmenchan" refers to the standard form, but many different types of three-sided waits exist.


==Named patterns==
==Named patterns==
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{{#mjt:000000z45678s00z}} Waiting for: {{#mjt:3s}}, {{#mjt:6s}}, or {{#mjt:9s}}
{{#mjt:000000z45678s00z}} Waiting for: {{#mjt:3s}}, {{#mjt:6s}}, or {{#mjt:9s}}


This pattern consists of five consecutive tiles (that do not include 1 or 9): two ryanmen connected by one mutual waiting tile in the middle. The three-sided waits generated from this pattern are the most common form of the three-sided wait; when the term sanmenchan is used on its own, it is often in reference to this pattern of wait.  The wait always points to one of the full [[suji]] patterns.
This pattern consists of five consecutive tiles, that do not include 1 or 9. It functions as two ryanmen connected by one mutual waiting tile in the middle. It is the most common three-sided wait.


This pattern is a powerful wait due to the large number of waiting tiles: 11 maximum possible, using any of 3-tile types.  That number cannot be 12, due to one waiting tile (the middle number) already present in the hand. The waiting pattern is limited, however, to one of the three numbered suits.  With [[suji]], the waiting pattern involves one of the three mahjong intervals.
Accepting up to 11 tiles (the 12th tile is already in hand), it is a powerful wait. Note, though, that it always waits on a full [[suji]] interval - the wait is either 1-4-7, 2-5-8, or 3-6-9.


===Entotsu===
===Entotsu===
{{#mjt:11m45666s000000z}} Waiting for: {{#mjt:1m}}, {{#mjt:3s}}, or {{#mjt:6s}}
{{#mjt:11m45666s000000z}} Waiting for: {{#mjt:1m}}, {{#mjt:3s}}, or {{#mjt:6s}}


[[Entotsu]] incorporates the [[shanpon]] wait and a [[ryanmen]]. The pattern always includes a ryanmen wait, tied to a triplet of one of the waiting tiles. On top of that, any paired tile can be used with it.
[[Entotsu]] incorporates the [[shanpon]] wait and a [[ryanmen]]. The pattern always includes a ryanmen wait, tied to a triplet of one of the waiting tiles. On top of that, any paired tile can be used with it. However, since 5 copies of the winning tiles are already in hand, it isn't as strong as the standard sanmenchan.


===Ryantan===  
===Ryantan===  
{{#mjt:4555m000000000z}} Waiting for: {{#mjt:3m}}, {{#mjt:4m}}, {{#mjt:6m}}
{{#mjt:4555m000000000z}} Waiting for: {{#mjt:3m}}, {{#mjt:4m}}, {{#mjt:6m}}


[[Ryantan]] (a contraction of ryanmen + tanki) is composed of a triplet of a middle numbered tile with one more tile adjacent to the number, either one less or one more. The single tile produces a tanki wait when we keep the triplet complete, and produces a ryanmen wait when we split the triplet into a pair and connected tile.
[[Ryantan]] (a contraction of ryanmen + tanki) is composed of a triplet of a middle numbered tile with one more tile adjacent to the number, either one less or one more. The single tile produces a tanki wait if the triplet is kept complete, and produces a ryanmen wait if the triplet into a pair and connected tile.


===Sanmentan===
===Sanmentan===
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