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Yakuman: Difference between revisions
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[[Image:Shosusshii.png|thumb|right|250px|[[Shousuushii]]]] | [[Image:Shosusshii.png|thumb|right|250px|[[Shousuushii]]]] | ||
'''Yakuman''' {{kana|役満}} are a special class of [[yaku]] (hand patterns) whose [[scoring table|point value]] is set to the maximum. Traditionally, a yakuman is the most that any one hand can reach. However, some [[#Multiple yakuman|rule variations]] allow multiple yakuman to be combined | '''Yakuman''' {{kana|役満}} are a special class of [[yaku]] (hand patterns) whose [[scoring table|point value]] is set to the maximum. These hands are considered rare and difficult. Traditionally, a yakuman is the most that any one hand can reach. However, some [[#Multiple yakuman|rule variations]] allow multiple yakuman to be combined. | ||
==Definition== | ==Definition== | ||
Yakuman are worth 8000 base points | Yakuman are worth 8000 base points. For a non-dealer, this would equal 32000 points for ron, or 8000/16000 points from tsumo. | ||
A [[kazoe yakuman]] is scored when a hand reaches 13 or more han. Otherwise, in standard rules, a hand cannot score both yakuman and yaku at the same time. In other words, if a hand contains a yakuman pattern, it has 0 han. | A [[kazoe yakuman]] is scored when a hand reaches 13 or more han. Otherwise, in standard rules, a hand cannot score both yakuman and yaku at the same time. In other words, if a hand contains a yakuman pattern, it has 0 han. | ||
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==Difficulty== | ==Difficulty== | ||
Yakuman are rare and thus difficult. Most yakuman have specific restrictions that make them difficult, such as [[ryuuiisou]] only allowing 6 of 34 tile types, or [[shousuushii]] requiring 3 [[wind]] triplets and a pair of the fourth. Others are achieved in specific | Yakuman are rare and thus difficult. Most yakuman have specific restrictions that make them difficult, such as [[ryuuiisou]] only allowing 6 of 34 tile types, or [[shousuushii]] requiring 3 [[wind]] triplets and a pair of the fourth. Others are achieved in specific conditions, such as [[tenhou and chiihou]] being won on the first draw. | ||
Among the yakuman, three in particular are considered to be among the easiest to attain: [[suuankou]], [[daisangen]], and [[kokushi musou]]. Collectively, these three yakuman are known as '''yakuman gosanke''' {{kana|役満御三家}}, or "the three big families of yakuman". | Among the yakuman, three in particular are considered to be among the easiest to attain: [[suuankou]], [[daisangen]], and [[kokushi musou]]. Collectively, these three yakuman are known as '''yakuman gosanke''' {{kana|役満御三家}}, or "the three big families of yakuman". | ||
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The more games the play, the higher the chance you'll score a yakuman eventually. Naturally, luck also players a role. When a yakuman becomes viable to aim for, a player should recognize the chance and seize it. | The more games the play, the higher the chance you'll score a yakuman eventually. Naturally, luck also players a role. When a yakuman becomes viable to aim for, a player should recognize the chance and seize it. | ||
The chance for a yakuman is not constant; it decreases as opponents grow in skill level. Higher skill opponents tend to have better [[tile efficiency]], so they can win hands faster. Also, they are more likely to defend once a yakuman threat is present. Example statistics: | The chance for a yakuman is not constant; it decreases as opponents grow in skill level. Higher skill opponents tend to have better [[tile efficiency]], so they can win normal hands faster, before a yakuman gets to form. Also, they are more likely to defend once a yakuman threat is present. Example statistics: | ||
*[[Tenhou.net]], tokujou room, month of Mar. 2024: ~1/930.6 of winning hands are yakuman | *[[Tenhou.net]], tokujou room, month of Mar. 2024: ~1/930.6 of winning hands are yakuman | ||
*Tenhou.net, houou room, month of Mar. 2024: ~1/1228 of winning hands are yakuman | *Tenhou.net, houou room, month of Mar. 2024: ~1/1228 of winning hands are yakuman | ||
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A yakuman [[ron]] can put an opposing player in negative points, potentially ending the game. In any case, a yakuman will almost always put you in a huge lead. Still, you must not be complacent, as you still have a chance to drop down. | A yakuman [[ron]] can put an opposing player in negative points, potentially ending the game. In any case, a yakuman will almost always put you in a huge lead. Still, you must not be complacent, as you still have a chance to drop down. | ||
==Multiple | ==Multiple yakuman== | ||
[[Image:Double yakuman ron.png|thumb|right|250px|High level player [http://tenhou.net/0/?log=2014092416gm-00a9-0000-3263f602&tw=1&ts=4 falling to double yakuman].]] | [[Image:Double yakuman ron.png|thumb|right|250px|High level player [http://tenhou.net/0/?log=2014092416gm-00a9-0000-3263f602&tw=1&ts=4 falling to double yakuman].]] | ||
[[Image:Harmless.png|thumb|right|250px|Relatively [http://tenhou.net/0/?log=2012032214gm-0009-0000-cc8c2c61&tw=3&ts=12 harmless threat].]] | [[Image:Harmless.png|thumb|right|250px|Relatively [http://tenhou.net/0/?log=2012032214gm-0009-0000-cc8c2c61&tw=3&ts=12 harmless threat].]] | ||
{{main|Multiple yakuman}} | {{main|Multiple yakuman}} | ||
Some yakuman may combine if their tile patterns allow them to do so. The most common combinations involve [[tsuuiisou]] along with [[shousuushii]] and [[daisangen]]. [[Tenhou and chiihou]] can combine with any yakuman except [[suukantsu]], though this event is exceptionally rare. | Some yakuman may combine if their tile patterns allow them to do so. The most common combinations involve [[tsuuiisou]] along with [[shousuushii]] and [[daisangen]]. [[Tenhou and chiihou]] can combine with any yakuman except [[suukantsu]], though this event is exceptionally rare. [[Kazoe yakuman]] may not combine with any other yakuman, since yakuman cannot be scored with regular yaku. | ||
In some rulesets, a hand can only score one yakuman, even if a hand contains multiple. Others allow the yakuman to stack, e.g. a double yakuman, worth 64000 points, for suuankou + daisangen. Sometimes, special patterns like [[suuankou tanki]] and [[daisuushi]] are worth double yakuman on their own. | In some rulesets, a hand can only score one yakuman, even if a hand contains multiple. Others allow the yakuman to stack, e.g. a double yakuman, worth 64000 points, for suuankou + daisangen. Sometimes, special patterns like [[suuankou tanki]] and [[daisuushi]] are worth double yakuman on their own. | ||