Japanese mahjong scoring rules: Difference between revisions

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[[Image:Scoring Table.png|right|350px]]
[[Image:Scoring Table.png|right|350px]]
[[Japanese mahjong]] features a very complex scoring system. Nearly every mahjong hand has a value in terms of '''han''' and '''fu''', which are plugged into an [[#Calculating basic points|equation]] to derive the hand's points. Alternatively, a [[scoring table]] can be used to find a hand's point value directly.
[[Japanese mahjong]] features a complex scoring system. Nearly every mahjong hand has a value in terms of '''han''' and '''fu''', which determine its point value. The han and fu are then plugged into an [[#Calculating basic points|equation]] to determine the score. A [[scoring table]] can be used to find the point value directly, without needing an equation.
 
Generally, a game starts players with 25,000 points, with the goal of scoring at least 30,000 by the end for first place to declare victory. Both of these values can be changed; tournament play in particular often starts with 30,000 points.


== Scoring factors ==
== Scoring factors ==
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=== Han ===
=== Han ===


'''Han''' {{kana|飜}} is the main portion of scoring. Each [[yaku]] is assigned a value in terms of han: most are valued at 1-2, going up to 6 han for closed [[chinitsu]]. Some yaku are worth -1 han with an open hand, and others cannot be scored at all with an open hand. Also, each [[dora]] in the hand grants +1 han. A hand's yaku and dora are added up to produce a total han value.
'''Han''' {{kana|飜}} are the main portion of scoring. Each [[yaku]] is assigned a value in terms of han: most are valued at 1-2, going up to 6 han for closed [[chinitsu]]. Each [[dora]] also grants +1 han. Han from yaku and dora are added up to produce a total han value.


Players are encouraged to know yaku, their han values, and how much points a given hand is worth. This knowledge may help with various game decisions, particularly when [[Riichi strategy|calling riichi]] or [[Betaori|abandoning the hand]].
Players are encouraged to know yaku, their han values, and how much points a given hand is worth. This knowledge may help with various game decisions, particularly when [[Riichi strategy|calling riichi]] or [[Betaori|abandoning the hand]].


As a general rule, for every +1 han, the hand roughly doubles in value until reaching 4 han. There is a "[[mangan|cap]]" at 2000 base points (5 han; 4 han 40+ fu); a hand that scores this much is called a [[mangan]] hand. Once reaching mangan, fu no longer matters for points, and han is reduced in value.
As a general rule, for every +1 han, the hand roughly doubles in value until reaching 4 han. There is a "[[mangan|cap]]" at 2000 base points (5 han; 4 han 40+ fu) - a hand that scores this much is called a [[mangan]] hand. Once reaching mangan, fu no longer matters for points, and han is reduced in value.


=== Fu ===
=== Fu ===
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