Japanese mahjong scoring rules: Difference between revisions

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Under usual rules, above 4 han, the score is capped. Fu become irrelevant and the hand is scored based solely on the han value. Since there are not a large number of possible hand values below 5 han, a [[scoring table]] is usually used, rather than calculating the values directly.
Under usual rules, above 4 han, the score is capped. Fu become irrelevant and the hand is scored based solely on the han value. Since there are not a large number of possible hand values below 5 han, a [[scoring table]] is usually used, rather than calculating the values directly.


By default, most games start players at 25,000 points, with the goal of scoring at least 30,000 to declare victory for the points leader.  Both of these values are easily varied, and tournament play in particular often starts with 30,000 points.
By default, most games start players at 25,000 points, with the goal of scoring at least 30,000 to declare victory for the points leader.  Both of these values are easily varied.  Any game can set the start and target scores to any desired but workable numbers.  Tournament play in particular often starts with 30,000 points.


Under the rarely-used [[aotenjou]] rules, there is no scoring cap, and every hand is evaluated for fu and han, regardless of value. This can result in absurdly high hand values.
Under the rarely-used [[aotenjou]] rules, there is no scoring cap, and every hand is evaluated for fu and han, regardless of value. This can result in absurdly high hand values.
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To determine the point value of a hand, the following procedure is used:
To determine the point value of a hand, the following procedure is used:
# If the hand is a [[List of yaku|yakuman]], then 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 points.
## If double yakuman are used, a double yakuman scores 16,000 basic points.
## If multiple yakuman are used, and multiple single and/or double yakuman are completed, their values are added together.
## If multiple yakuman are used, and multiple single and/or double yakuman are completed, their values are added together.
# Otherwise, determine all of the hand's valid [[yaku]].
# Otherwise, determine all of the hand's valid [[yaku]].
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# Count the han based on the yaku.
# Count the han based on the yaku.
# Count any number of dora to the han count.
# Count any number of dora to the han count.
# If the han count is 5 or more, then counting fu is no longer necessary. Score the hand 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.
## 6-7 han: haneman hand worth 3,000 base points.
## 6-7 han: haneman hand worth 3,000 base points.
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In addition to the points for the hand, the winner is paid a small sum of points based on the number of honba counters on the table. Thus, as a hand is [[renchan|repeated]], its value goes up slowly.
In addition to the points for the hand, the winner is paid a small sum of points based on the number of honba counters on the table. Thus, as a hand is [[renchan|repeated]], its value goes up slowly.
== Oyakaburi ==
'''Oyakaburi''' 「親かぶり」 is when a non-dealer player wins by tsumo, causing the dealer to pay more than non-dealer players.  This usually applies to a high value tsumo, as the dealer has to pay double of a non-dealer for tsumo payout. The effect of oyakaburi is bigger to dealer when the total value is high.


== End game score ==
== End game score ==
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{{jpwiki|麻雀の得点計算}}
{{jpwiki|麻雀の得点計算}}
* [http://mahjong.onevis.net/ Online hand scoring calculator]
* [http://mahjong.onevis.net/ Online hand scoring calculator]
* [https://scoringtrainer.konbamwa.net/ Hand scoring trainer]


[[Category:Scoring]]
[[Category:Scoring]]
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