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 or making any call. More commonly, atozuke is allowed.
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.


== Examples ==
== Examples ==
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== Atozuke disabled ==
== Atozuke disabled ==
When the atozuke rule is disabled, the hand must have a confirmed yaku before winning and before making any call. A hand that could always win under atozuke enabled may not be allowed to win in atozuke disabled.
When the atozuke rule is disabled, the hand must have a confirmed yaku before winning and before calling any tile. Therefore, a hand that could always win under atozuke enabled may not be allowed to win in atozuke disabled.


  {{#mjt:789m789p67878s55z}} Agari: {{#mjt:6s}} or {{#mjt:9s}}
  {{#mjt:789m789p67878s55z}} Agari: {{#mjt:6s}} or {{#mjt:9s}}
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* When the atozuke rule is disabled, this hand cannot win. Neither iipeikou nor sanshoku are confirmed. Because this hand does not ''guarantee'' "iipeikou", "sanshoku", or any other yaku in its current state, it cannot win. (Of course, since this is a closed hand, you can just call [[riichi]].)
* When the atozuke rule is disabled, this hand cannot win. Neither iipeikou nor sanshoku are confirmed. Because this hand does not ''guarantee'' "iipeikou", "sanshoku", or any other yaku in its current state, it cannot win. (Of course, since this is a closed hand, you can just call [[riichi]].)


  {{#mjt:123m456p567s5577z}} Agari: {{#mjt:5z}} or {{#mjt:77z}}
  {{#mjt:123m456p567s5577z}} Agari: {{#mjt:5z}} or {{#mjt:7z}}


This hand would gain a yakuhai if it wins off the haku or chun. However, it does not have a guaranteed yaku in the current state, and so it cannot win in atozuke disabled (until riichi is declared).
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 atozuke is disabled (until riichi is declared).


  {{#mjt:123456m67p6'66z7'89s}} Agari: {{#mjt:5s}} or {{#mjt:8s}}
  {{#mjt:123456m67p6'66z7'89s}} Agari: {{#mjt:5s}} or {{#mjt:8s}}
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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 with atozuke disabled.
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 with atozuke disabled.


To repeat, atozuke is most often enabled. When atozuke is enabled, all 3 types of hand can win without issue.
{{#mjt:123456m67p666z7'89s}} Agari: {{#mjt:5s}} or {{#mjt:8s}}
 
When the hatsu triplet is closed, the hand can always win. (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.)
 
To repeat, the atozuke rule is most often enabled. When atozuke is enabled, all these types of hand can win without issue.


== Strategy ==
== Strategy ==
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