1,696
edits
m (re-add aoten) |
|||
(6 intermediate revisions by 2 users not shown) | |||
Line 1: | Line 1: | ||
[[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 | [[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. | ||
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. | 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. | ||
Line 8: | Line 8: | ||
=== 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. | '''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. | ||
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 doubles in value until reaching 4 han. There is a "[[mangan|cap]]" at 2000 base points (5 han; 4 han 40+ fu) | 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 === | ||
Line 35: | Line 35: | ||
# If the hand is a [[List of yaku|yakuman]], then the hand scores 8,000 basic points. | # If the hand is a [[List of yaku|yakuman]], then the hand scores 8,000 basic points. | ||
## If double yakuman are used, a double yakuman scores 16,000 basic points. If multiple (>2) yakuman are used, points are multiplied accordingly. | ## If double yakuman are used, a double yakuman scores 16,000 basic points. If multiple (>2) yakuman are used, points are multiplied accordingly. | ||
# Otherwise, determine all of the hand's valid [[yaku]]. | # Otherwise, determine all of the hand's valid [[yaku]] and determine the amount of [[dora]]. Count the number of han from these sources. | ||
## Some [[Yaku compatibility|yaku combinations]] such as [[chanta]] + [[junchan]] are not compatible with each other. | ## Some [[Yaku compatibility|yaku combinations]] such as [[chanta]] + [[junchan]] are not compatible with each other. | ||
# If the han count is 5 or more, then counting fu is no longer necessary. The hand is scored according to its han value: | # If the han count is 5 or more, then counting fu is no longer necessary. The hand is scored according to its han value: | ||
## 5 han: mangan hand worth 2,000 base points. | ## 5 han: mangan hand worth 2,000 base points. | ||
Line 46: | Line 44: | ||
# If the han count is 4 or less, then count fu. | # If the han count is 4 or less, then count fu. | ||
## If the hand is not [[chiitoitsu|seven pairs]], round the fu up to the nearest 10. | ## If the hand is not [[chiitoitsu|seven pairs]], round the fu up to the nearest 10. | ||
# To get the base points, | # To get the base points, plug in the equation <code>fu × 2<sup>(2 + han)</sup></code> | ||
# If playing with [[kiriage mangan]], round a 1,920-point hand up to a 2,000-point mangan. | # If playing with [[kiriage mangan]], round a 1,920-point hand up to a 2,000-point mangan. | ||
# In any case, if the base points value would be above 2,000 for a hand with 4 or fewer han, it is instead a 2,000-point mangan. | # In any case, if the base points value would be above 2,000 for a hand with 4 or fewer han, it is instead a 2,000-point mangan. | ||
Line 74: | Line 72: | ||
{{Main|Scoring table}} | {{Main|Scoring table}} | ||
Since the han and fu equation | Since the han and fu equation is always the same, it is possible to use a scoring table to score the hand. Simply calculate the hand's han and fu, then find the values on the table. See [[scoring table]] for the actual table. | ||
For details on how to memorize scoring, see [[score table memorization]]. | For details on how to memorize scoring, see [[score table memorization]]. |
edits