World Riichi Championship rules: Difference between revisions

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The '''World Riichi Rules''' consist of combined [[Rule variations|rulesets]] applied by the [[EMA]] and contemporary Japanese rules.  The rules document is authored by Sylvain Malbec and is accepted by the EMA, [[JPML]], and the rest of the tournament participants.  The rules were applied to the [[2014 World Riichi Mahjong Competition]].
The '''World Riichi Rules''' were used by the [[World Riichi Championship]] and authored by Sylvain Malbec. It combines the [[Rule variations|rulesets]] of the [[EMA]] and contemporary Japanese rules.


== Summary ==
== Summary ==
The rules apply regular [[Japanese mahjong]] rules with some notable differences. The following organizations and their rulesets were put into consideration:
Basic rules, such as turn order, [[tile calls]], and available [[yaku]], are the same as any regular Japanese mahjong ruleset.


The following organizations and their rulesets were put into consideration:
* [[European Mahjong Association]] (EMA)
* [[European Mahjong Association]] (EMA)
* [[101 Kyougi Renmei]]
* [[101 Kyougi Renmei]]
* [[Japan Professional Mahjong League]] (JPML)
* [[Japan Professional Mahjong League]] (JPML)
* [[Korean Mahjong League]] (KML)
* [[Korean Mahjong League]] (KML)
* [[Mu Mahjong μ!]]
* [[Mahjong Union|Mu Mahjong μ!]]
* [[Nihon Pro Mahjong]] (NPM)
* [[Nihon Pro Mahjong]] (NPM)
* [[Real Mahjong Unit]] (RMU)
* [[Real Mahjong Unit]] (RMU)
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* [[United States Professional Mahjong League]] (USPML)
* [[United States Professional Mahjong League]] (USPML)


== Basic rules ==
== Rule list ==
Basic rules to the game are essentially the same.  Game mechanics regarding turn order, [[Naki|tile calls]], and [[List of yaku|yaku]] are inherently the same.  Rule differences are generally applicable using [[ari]] (on) or nashi (off) on various rule settings and variations.  Any major differences are listed.
*'''Kuitan''' (open tanyao): On
 
*'''Atozuke''': On
== Kazoe yakuman ==
*'''[[Oka]]''': Off
{{main|Kazoe yakuman}}
*'''[[Uma]]''': {{uma|+15|+5|-5|-15}}. If players tie, uma is averaged (e.g. if two players tie for 1st, both gain +10).
Normally, a hand worth 13 han or more is classed as a [[yakuman]].  However, this value is reduced to [[sanbaiman]].
*'''[[Abortive draws]]''': None
 
*'''[[Chombo]]''': -30 (as of the 2022 edition), applied after [[uma]].
== Kuitan ==
** Before 2022: -20.
{{Main|Kuitan}}
*'''[[Yakuman]]''': Hands can score a single yakuman maximum.
 
*'''[[Kazoe yakuman]]''': Off - a 13+ han hand is scored as a [[sanbaiman]].
Kuitan, or open tanyao, is allowed in the WRC rules.  During the planning stages of the first WRC, there were initial plans to prohibit kuitan at the behest of the EMA. However, after some discussion, the stakeholders chose to allow kuitan instead.
*'''[[Pao]]''': On for [[daisangen]], [[daisuushii]], and [[suukantsu]].
 
== Tochuu ryuukyoku ==
{{main|Tochuu ryuukyoku}}
Abortive draws are completely omitted from the tournament.
 
== Uma ==
{{main|Uma}}
The uma for the tournament uses {{uma|+15|+5|-5|-15}}. However, in the event of a tie between players, then the uma is adjusted to accommodate the tie. At the end, the end game score is calculated as follows:
 
Session score = ((points – 30,000) / 1,000) + uma
 
== Yakuman ==
{{main|Yakuman|Multiple yakuman}}
 
Every yakuman is counted as single yakuman. Plus, the maximum points awarded for any hand is capped as that of a single yakuman.


== External links ==
== External links ==
* [https://worldriichi.org/wrc-rules WRC Rules]
* [http://asdfasdf.ethz.ch/~simon/etc/wrc_rules.pdf WRC rules document]
* [http://asdfasdf.ethz.ch/~simon/etc/wrc_rules.pdf WRC rules document]
* [http://ooyamaneko.net/download/mahjong/World_Riichi_Championship_Rules_2015.pdf WRC rules 2015 version]
* [http://ooyamaneko.net/download/mahjong/World_Riichi_Championship_Rules_2015.pdf WRC rules 2015 version]
[[Category:Rule sets]]
[[Category:Rule sets]]

Latest revision as of 02:20, 11 September 2024

World Riichi Championship rules ruleset
Kuitan, atozuke Ari-Ari
Starting points 30,000
Ending points
(Target)		 30,000
Negative score Game end
Oka
(total ante)		 0
Uma
(placement bonus)		 +15/+5
Modified for ties
Renchan setting Tenpai-renchan
Abortive draws None

The World Riichi Rules were used by the World Riichi Championship and authored by Sylvain Malbec. It combines the rulesets of the EMA and contemporary Japanese rules.

Summary

Basic rules, such as turn order, tile calls, and available yaku, are the same as any regular Japanese mahjong ruleset.

The following organizations and their rulesets were put into consideration:

Rule list

External links

Retrieved from "https://riichi.wiki/index.php?title=World_Riichi_Championship_rules&oldid=25869"