Takame and yasume: Difference between revisions

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'''Takame''' {{kana|高目}} and '''yasume''' {{kana|安目}} involve [[tenpai]] hands, where the different multiple waiting tiles produces different value based on yaku and/or dora.  This deals with the situation, where one group of waiting tiles may produce a hand of lower value than the other group of waiting tiles. '''Takame''' refers to the tile wait(s) producing the greater hand value, while '''yasume''' wins with the tile(s) of a lesser value.    Often, the situation determines whether a hand produces specific [[yaku]] or not.  A classic example involves [[atozuke]], where the lesser valued tile prevents a hand from winning while the preferred tile does.
'''Takame''' {{kana|高目}} and '''yasume''' {{kana|安目}} are terms used whenever a hand can score differently with different winning tiles. '''Takame''' are the more valuable winning tiles, and '''yasume''' are the less valuable tiles.


== Conditions ==
==Conditions==
This condition may be nullified with hands of [[mangan]] or greater. This is simply due to the ranges of han required to produce mangan or greater.  For example, a haneman hand is worth 6 or 7 han.  So, the need to increase a hand's value from 6 han to 7 han becomes irrelevant, as the points awarded is the exact same.  Of course, the condition is invoked again when the value differs from 7 han to 8 han.
In order to be subject to takame and yasume:
* A hand must be in [[tenpai]] with multiple different [[wait]]s.
* At least one of its waiting tiles would be more valuable than the other. This happens when:
** Some of the winning tiles would produce a [[yaku]]
** Some of the winning tiles are the [[dora]].


In relation of [[machi|tile waits]], this condition potentially affects any hand with multiple tile waits. Any hand implementing only a [[penchan]], [[kanchan]] or [[tanki]] wait usually cannot be affected, since there is only one type of winning tile. Other wait patterns, including a combination of multiple single waits such as [[nobetan]], may lead to yasume and takame. Certain multiple waits, such as the [[kokushi musou]] 13-sided wait, and the [[chuuren poutou]] 9-sided wait, are inherently immune to this, while others may depend on the precise circumstances of the hand. For instance, a ryanmen wait that would potentially complete an [[iipeikou]] will only have takame and yasume if the hand is closed.
[[Mangan]] and higher hands may nullify takame and yasume. Say a hand could score 7 han on its takame, and 6 han on its yasume. Either way, it is a [[haneman]], and worth the same score. Thus, despite having different han values, the hand will score the same.


Cases involving choosing [[riichi]] or using [[damaten]] provide interesting scenarios.  Using damaten, players retain the ability to be selective of particular tiles to win.  A player can simply decline yasume tile(s), in order to wait for the takame tile(s).  Those who call riichi may not have that option, as using the same tactic of declining winning tiles renders the hand in [[furiten]].  Such a decision may prove to be risky or rewarding.
[[Atozuke]] is a special case where the hand would have no [[yaku]] with its yasume, so it can ''only'' win if it gets a takame.


== Examples ==
== Examples ==
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|yasume      = 1s
|yasume      = 1s
}}
}}
:This is a special case, where only one tile can produce a valid win, while the other does not. Unless a circumstantial yaku like [[haitei raoyue and houtei raoyui|haitei or houtei]] is available, this hand has no yaku with 1s.
:This is a special case, where only one tile can produce a valid win, while the other does not. Unless a circumstantial yaku like [[haitei raoyue and houtei raoyui|haitei or houtei]] is available, this hand has no yaku with 1s. It can only win with the chun.


* [[Dora]]-based
* [[Dora]]-based
Line 24: Line 28:
|tilewaits    = 25p
|tilewaits    = 25p
}}
}}
:This is just a regular [[pinfu]] hand waiting on one of two tile types. If one of them is dora, then the hand prefers to win off of that dora tile.  However, at times, it may just end up accepting the non-dora winning tile.
:This is just a regular [[pinfu]] hand waiting on one of two tile types. If one of those tiles is the [[dora]], the hand would be more valuable if it got the dora.


* [[Pinfu]] and [[tanyao]] potential
* [[Pinfu]] and [[tanyao]] potential
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|yasume      = 7m
|yasume      = 7m
}}
}}
:In this case, the hand is waiting on two tiles.  One tile will result in sanshoku.  The other does not.
:The hand waits on 2 tiles, but only one of them (the 4m) will result in sanshoku.


=== Yakuman involved ===
=== Yakuman involved ===
Line 73: Line 77:


== Other scoring conditions ==
== Other scoring conditions ==
Two other situations can occur where a hand scores differently depending on how it is won, not counting yaku specifically tied to the method of winning: [[menzenchin tsumohou|mentsumo]], [[chankan]], [[rinshan kaihou|rinshan]], [[haitei raoyue and houtei raoyui|haitei, and houtei]].
These conditions can cause a hand to score differently based on how it's ''won'', not on which tile is received:
 
* A hand may score a conditional yaku ([[menzen tsumo]], [[chankan]], [[rinshan kaihou|rinshan]], [[haitei]], and [[houtei]]) if it wins in a certain way.
The first is when [[akadora]] are in use and a hand is waiting on a tile featuring such a tile. In this case, the hand potentially scores higher if it wins with a dora tile than with a non-dora tile.
* If [[Akadora]] are in play, and the hand waits on such tiles. The hand scores more if it receives the akadora rather than a normal tile.
 
* [[Sanankou]] and [[suuankou]] rely on closed triplets. If a triplet is completed by [[ron]], it is not considered closed. Therefore, a hand with two closed triplets can score sanankou if the third triplet is completed by tsumo, but not if the third triplet is completed by ron.
The second situation involves the [[sanankou]] and [[suuankou]] yaku. These yaku cannot be scored if the third or fourth [[koutsu]] is completed with a [[ron]]. As a result, the hand may score higher if won on a [[tsumo]].


These scoring aspects may additionally be combined with each other and with yasume and takame:
These scoring aspects may additionally be combined with each other and with yasume and takame:
Line 86: Line 89:
}}
}}


In this case, if the hand wins with a 5-pin or with 6-man, it will qualify for [[tanyao]], but not if it wins with 9m. The winning 5-pin could be red, giving an additional dora tile. Then there is consideration for sanankou. With a ronned 6-man or 9-man, it will qualify for sanankou.  With a 6-man or a 5-pin by tsumo, it also contains sanankou.  If the winning tile is 6m or 9m, then then 666m [[ankou]] existed in the hand already, and if a 5p is drawn for a tsumo, then the 555p ankou can be used instead. In any case, the least desired winning tile may be the 9-man, assuming none of the winning tiles are dora.
In this case, if the hand wins with a 5-pin or with 6-man, it will qualify for [[tanyao]], but not if it wins with 9m. The winning 5-pin could be red, giving an additional dora tile. Then there is consideration for sanankou. With a ronned 6-man or 9-man, it will qualify for sanankou.  With a 6-man or a 5-pin by tsumo, it also contains sanankou.  If the winning tile is 6m or 9m, then then 666m [[ankou]] existed in the hand already, and if a 5p is drawn for a tsumo, then the 555p ankou can be used instead. In any case, the least valuable winning tile is the 9-man (all else equal).
 
== Strategy ==
Takume and yasume can be important when deciding whether to [[riichi]] or stay [[damaten]].
*If a [[damaten]] hand rejects a [[ron]], it only enters [[furiten]] until your next turn.
*If a [[riichi]] hand rejects a ron, it enters [[furiten]] permanently.
 
Thus, a dama hand may reject an opponent's discarded yasume and wait for a more valuable tile. However, because riichi is worth ~1.5 han on average, you should not dama just because you can decline a yasume. For example:
 
{{machi
|pattern      = 56m456p456s55533z
|tilewaits    = 4m
|wait status  = Takame
|yasume      = 7m
}}
 
This hand has 1 han from [[yakuhai]] and possibly 2 han from [[sanshoku]].
* Dama, 7m: (skipped for more valuable tile)
* Dama, 4m: 3 han
* Riichi, 7m: 2.5 han on average
* Riichi, 4m: 4.5 han on average
 
Overall, for this hand, riichi can accept twice as many tiles, with a minimum expected value of 2.5 han. Dama can accept half as many tiles, for a value of only 3 han. Therefore, riichi is better. The difference between takume/yasume should be 3+ han to be considered, and even then, you might want to riichi.
 
Takume and yasume can be relevant in [[oorasu|all last]] (where only the takume could let you rise a rank).


== External links ==
== External links ==

Revision as of 21:26, 25 July 2024

Takame 「高目」 and yasume 「安目」 are terms used whenever a hand can score differently with different winning tiles. Takame are the more valuable winning tiles, and yasume are the less valuable tiles.

Conditions

In order to be subject to takame and yasume:

  • A hand must be in tenpai with multiple different waits.
  • At least one of its waiting tiles would be more valuable than the other. This happens when:
    • Some of the winning tiles would produce a yaku
    • Some of the winning tiles are the dora.

Mangan and higher hands may nullify takame and yasume. Say a hand could score 7 han on its takame, and 6 han on its yasume. Either way, it is a haneman, and worth the same score. Thus, despite having different han values, the hand will score the same.

Atozuke is a special case where the hand would have no yaku with its yasume, so it can only win if it gets a takame.

Examples

Takame: Yasume:
This is a special case, where only one tile can produce a valid win, while the other does not. Unless a circumstantial yaku like haitei or houtei is available, this hand has no yaku with 1s. It can only win with the chun.
Waiting for:
This is just a regular pinfu hand waiting on one of two tile types. If one of those tiles is the dora, the hand would be more valuable if it got the dora.
Takame: Yasume:
In this case, the hand is waiting on three tiles. Two waits will result in pinfu (1m and 4m). Two waits will result in tanyao (3m and 4m). Winning with 4m maximizes hand value.
Takame: Yasume:
The hand waits on 2 tiles, but only one of them (the 4m) will result in sanshoku.

Yakuman involved

Takame: Yasume:
This produces a wide takame and yasume situation. Tsumo with the takame tiles produces yakuman, while winning on the yasume produces 1-han hands.
Takame: Yasume:
Tenpai hand waiting to produce either daisangen (takame) or shousangen (yasume).
Takame: Yasume:
Only one tile can produce the yakuman, chuuren poutou, while the other waits produce only chinitsu.

Other scoring conditions

These conditions can cause a hand to score differently based on how it's won, not on which tile is received:

  • A hand may score a conditional yaku (menzen tsumo, chankan, rinshan, haitei, and houtei) if it wins in a certain way.
  • If Akadora are in play, and the hand waits on such tiles. The hand scores more if it receives the akadora rather than a normal tile.
  • Sanankou and suuankou rely on closed triplets. If a triplet is completed by ron, it is not considered closed. Therefore, a hand with two closed triplets can score sanankou if the third triplet is completed by tsumo, but not if the third triplet is completed by ron.

These scoring aspects may additionally be combined with each other and with yasume and takame:

Waiting for:

In this case, if the hand wins with a 5-pin or with 6-man, it will qualify for tanyao, but not if it wins with 9m. The winning 5-pin could be red, giving an additional dora tile. Then there is consideration for sanankou. With a ronned 6-man or 9-man, it will qualify for sanankou. With a 6-man or a 5-pin by tsumo, it also contains sanankou. If the winning tile is 6m or 9m, then then 666m ankou existed in the hand already, and if a 5p is drawn for a tsumo, then the 555p ankou can be used instead. In any case, the least valuable winning tile is the 9-man (all else equal).

Strategy

Takume and yasume can be important when deciding whether to riichi or stay damaten.

Thus, a dama hand may reject an opponent's discarded yasume and wait for a more valuable tile. However, because riichi is worth ~1.5 han on average, you should not dama just because you can decline a yasume. For example:

Takame: Yasume:

This hand has 1 han from yakuhai and possibly 2 han from sanshoku.

  • Dama, 7m: (skipped for more valuable tile)
  • Dama, 4m: 3 han
  • Riichi, 7m: 2.5 han on average
  • Riichi, 4m: 4.5 han on average

Overall, for this hand, riichi can accept twice as many tiles, with a minimum expected value of 2.5 han. Dama can accept half as many tiles, for a value of only 3 han. Therefore, riichi is better. The difference between takume/yasume should be 3+ han to be considered, and even then, you might want to riichi.

Takume and yasume can be relevant in all last (where only the takume could let you rise a rank).

External links

Basic Waits

One-sided: Kanchan - Penchan - Tanki (Hadaka tanki - Nakabukure)

Two-sided: Ryanmen - Shanpon
2-tile Complex Wait
3-tile Complex Wait
4 or more
Miscellaneous
Special
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