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Atozuke: Difference between revisions
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(when atozuke is disabled, the hand must have a yaku when first making the call (source: JP wikipedia)) |
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When a hand is subject to atozuke, it may still win if it draws the "[[takame|higher value]]" tile. However, it is normally unable to win off the "[[yasume|lesser]]" tile, since it would lack yaku. If the lesser tile is drawn, the hand may be subject to [[furiten]]. | When a hand is subject to atozuke, it may still win if it draws the "[[takame|higher value]]" tile. However, it is normally unable to win off the "[[yasume|lesser]]" tile, since it would lack yaku. If the lesser tile is drawn, the hand may be subject to [[furiten]]. | ||
Atozuke is subject to [[Rule variations#Atozuke|rule variations]]. When the atozuke rule is disabled ("atozuke nashi"), you must have a confirmed yaku before winning | Atozuke is subject to [[Rule variations#Atozuke|rule variations]]. When the atozuke rule is disabled ("atozuke nashi"), you must have a confirmed yaku before winning (and sometimes, before making any call). The more common rule, by far, is to allow atozuke. Rules disabling atozuke are rare, mostly found in specific [[jansou|mahjong parlor]]s. | ||
== Examples == | == Examples == | ||
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[[Tanyao]] can only be achieved when won with 6-sou. | [[Tanyao]] can only be achieved when won with 6-sou. | ||
===Sanshoku=== | === Sanshoku === | ||
{{#mjt:1112s111678p}} {{#mjt:11'1m}} Agari: {{#mjt:2s}} or {{#mjt:3s}} | {{#mjt:1112s111678p}} {{#mjt:11'1m}} Agari: {{#mjt:2s}} or {{#mjt:3s}} | ||
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== Atozuke disabled == | == Atozuke disabled == | ||
When the atozuke rule is disabled, the hand must have a confirmed yaku before winning | When the atozuke rule is disabled, the hand must have a confirmed yaku before winning. There are two main variations to atozuke disabled: | ||
# The hand must have a specific yaku confirmed before winning. In addition, when calling, it must have a specific yaku confirmed once the first call completes. | |||
# The hand must have a yaku no matter which tile it wins on. Any hand that always has a yaku by the end can win. | |||
To repeat, the atozuke rule is most often enabled. When atozuke is enabled, all of the following types of hand can win without issue. | |||
=== Two different yaku=== | |||
{{#mjt:789m789p67878s55z}} Agari: {{#mjt:6s}} or {{#mjt:9s}} | {{#mjt:789m789p67878s55z}} Agari: {{#mjt:6s}} or {{#mjt:9s}} | ||
If this hand wins from 6-sou, it gains [[iipeikou]]. If it wins from 9-sou, it gains [[sanshoku]]. | If this hand wins from 6-sou, it gains [[iipeikou]]. If it wins from 9-sou, it gains [[sanshoku]]. When the atozuke rule is enabled, this hand can win no matter what. Both winning tiles give a yaku, so it always has a yaku, so it can win regardless of the tile. Likewise, when rule #2 is used, this hand is allowed to win. | ||
But when rule #1 is used, this hand cannot win. Neither iipeikou nor sanshoku are confirmed. Because this hand does not ''guarantee'' "iipeikou", "sanshoku", or any other specific yaku in its current state, it cannot win. (Of course, since this is a closed hand, you can just call [[riichi]].) | |||
Note: when a yaku is not guaranteed because it is implied by another yaku, e.g. when a hand can score [[sanankou]] or [[suuankou]], atozuke does not apply, even when using rule #1. | |||
{{#mjt:123m456p567s5577z}} Agari: {{#mjt:5z}} or {{#mjt:7z}} | |||
This hand would gain a yakuhai triplet if it wins off the haku or chun. However, it does not have any yaku in the current state, and so it cannot win if rule #1 is in effect. | |||
{{#mjt: | === Yaku confirmed post-call === | ||
{{#mjt:123456m67p6'66z7'89s}} Agari: {{#mjt:5p}} or {{#mjt:8p}} | |||
This hand | This hand has a confirmed yaku through the triplet of hatsu. However, ''it did not have any yaku when calling the 789-sou''. Therefore, this hand cannot win when rule #1 is in effect. With rule #2, this hand can win normally. | ||
{{#mjt: | {{#mjt:123456m67p666z7'89s}} Agari: {{#mjt:5p}} or {{#mjt:8p}} | ||
When the hatsu triplet is closed, the hand can always win with rule #1. (Even if the hatsu triplet was not there when 789-sou was called, there would be practically no way to enforce it, so "drawing the hatsu triplet after calling" play is technically allowed.) | |||
Note: under rule #1, for whole hand yaku, like [[honitsu]], the yaku can be scored even if you had no other yaku and the yaku wasn't complete at the time of calling.<!---What about chanta/junchan?--> This is not allowed for yaku like [[sanshoku]] or [[ittsu]] - the yaku must be confirmed before the first call. E.g. If you had a 79-man [[kanchan]] waiting to complete ittsu-nomi, and had made any call previously, you cannot win. | |||
== Strategy == | == Strategy == | ||