EMA Riichi Competition Rules: Difference between revisions

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Updated detailed rules to remove misinformation. Added some details on handling points during the game.
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The '''Riichi Competition Rules''' (RCR) of the European Mahjong Association (EMA) are used for many Japanese Mahjong tournaments throughout Europe.
The '''Riichi Competition Rules''' (RCR) of the [[European Mahjong Association]] (EMA) are used for many [[Japanese Mahjong]] [[List of European tournaments|tournaments]] throughout Europe.


== Introduction ==
== Introduction ==
===From 2008 until 2016===
The EMA has used a ruleset over the course of its first 8 years of accepting riichi in its organization that was unique compared to other competitive riichi rules. The main differences of the RCR to other common Japanese Mahjong rulesets are:


The main differences of the RCR to other common Japanese Mahjong rulesets are:
* [[Kuitan]] nashi: Tanyao (all simples) was only awarded to closed hands only.
* [[Kuikae]] ari: Any discard is legal after calling chii or pon, even a tile which would also have completed the open meld.
* [[Ryanhan shibari]]: With five or more table counters present, winning hands must have at least two Han from Yaku.
* [[Furiten]] treatment: Temporary furiten is treated like ippatsu, a call from any opponents can nullify a temporary furiten state, unlike everywhere else requiring that the furiten player take his own action before exiting the furiten state. Permanent and self-furiten are treated the same.


* [[Kuitan]] nashi: The yaku Tanyao (all simples) may be awarded to closed hands only.
===Current (2016+)===
* [[Kuikae]] ari: Any discard is legal after calling Chii or Pon, even a tile which would also have completed the open meld.
The most recent update to the EMA ruleset has made a number of changes, to resemble the standard set by the WRC rules. The remaining differences with the 2015 WRC ruleset are minimal
* Ryanhan shibari: With five or more table counters present, winning hands must have at least two Han from Yaku.
 
* Changes from previous EMA rules (2012): no more red fives; open tanyao ([[kuitan]]) allowed; renhou is now a strict mangan only; the maximum score is a single yakuman (Daisuushii no longer worth double); 11-han hands and above are all scored as sanbaiman; the timing rule was changed; no more swap-calling ([[kuikae]]); temporary furiten ends once the player can play their turn (draw or claim a tile); the 2-han restriction ([[ryanhan shibari]]) with 5 or more repeats is gone; no more abortive draws; no more nagashi mangan; rank bonus ([[uma]]) is now [+15P, +5P, -5P, -15P]; the chombo penalty in a tournament is now -20P (after rank bonus); penalties are generally less harsh.
* Differences with WRC rules (2015):  
** Multiple winners are allowed
** ''4 han, 30 fu'' is not rounded to mangan payment
** Timing rules differ; EMA: pung takes predence over chow
** Riichi bets at game end go to the winner


== Detailed rules ==
== Detailed rules ==
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=== Play ===
=== Play ===
The tileset includes one red five per suit.


Turn order is considered interrupted by any call of Chii, Pon, or Kan, even when declaring a concealed kan.
Turn order is considered interrupted by any call of Chii, Pon, or Kan, even when declaring a concealed kan.


After calling Pon or Chii, any tile may be discarded by the caller. It is therefore legal to discard the same tile as the one called, or a tile which would have completed the now-open shuntsu on the other side.
Ura dora, kan dora, and kan ura dora are used. After declaring any type of kantsu, the next dora indicator is flipped immediately.
 
Ura dora, kan dora, and kan ura dora are used. After declaring any type of kan, the next dora indicator is flipped immediately.


A hand becomes an abortive draw in any of the following situations:
Abortive draws are no longer used in EMA riichi rules.
* Four kans have been declared by multiple players and the subsequent discard is not called for Ron.
* All players have declared Riichi and the subsequent discard is not called for Ron.
* All players have discarded the same wind tile on their first turn.
* A player reveals a hand with nine different terminals and honors during their turn within the first uninterrupted set of turns.


Double and triple Ron is allowed, the discarder has to pay each winner separately.
Double and triple Ron is allowed, the discarder has to pay each winner separately.


Temporary Furiten is cancelled when the player takes a tile from the wall, and also on any interruption of turn order.
Temporary Furiten is cancelled only when the player takes a tile from the wall.


A player is karaten (empty tenpai) if his hand could be completed with one more tile, but all possible winning tiles are already used in his own hand. Karaten counts as noten.
A player is karaten (empty tenpai) if his hand could be completed with one more tile, but all possible winning tiles are already used in his own hand. Open melds and kantsu belong to his hand. Karaten counts as noten.


=== Yaku ===
=== Yaku ===


Open Tanyao is not allowed.
[[Kuitan|Open tanyao]] is allowed.
 
Nagashi Mangan counts as a win, rendering noten penalties and noten Riichi Chombos void. Multiple players may win with Nagashi Mangan simultaneously, payments occur as with separate mangan Tsumos. Table counters affect the hand score normally.


Renhou is a yakuman. This is awarded to any player winning by Ron within the first uninterrupted set of turns, before the player has made his first draw from the wall. The winner does not need to have another yaku, Renhou by itself is the yaku.
[[Renhou]] is a mangan. This is awarded to any player winning by Ron within the first uninterrupted set of turns, before the player has made his first draw from the wall. The winner does not need to have another yaku, Renhou by itself is the yaku.


Pao, or Sekinin Barai, is in effect for Daisangen and Daisuushii.
[[Sekinin barai]], or pao, is in effect for [[daisangen]] and [[daisuushii]].


Yakuman are not cumulative. Daisuushii is the only possible double yakuman.
Yakuman are not cumulative.


=== Scoring ===
=== Scoring ===
All players start with 30,000 points. Point sticks are used to keep count of points during the game.


Scores are kept on paper, there are no point sticks. Players start with 0 points and may sink into negative scores without ending the game.
In case a player goes negative on points, a "penalty" 10,000 point stick is usually handed to them by the tournament judge in order to carry out further point transactions and resume play. This is ultimately subtracted from the player's end score.


Players may declare Riichi with any score. Tournaments often provide each player with a single 1,000-point-stick for Riichi declarations. Winning players always get one Riichi stick back. Leftover Riichi sticks go to the winner sitting closest to the discarder's right.
Players may declare Riichi with any score. Winning players always get one Riichi stick back. Leftover Riichi sticks go to the winner sitting closest to the discarder's right.


Table counters are added whenever East won a hand, or there was an exhaustive or abortive draw. Table counters are all removed when someone else than East wins and East does not. Chombo leads to a repetition of the hand with the same number of table counters.
Table counters are added whenever East won a hand, or there was an exhaustive draw. Table counters are all removed when someone else than East wins and East does not. Chombo leads to a repetition of the hand with the same number of table counters.


When five or more table counters are present, winning hands must have at least two han, coming from yaku.
After each Hanchan, players receive a relatively large [[Uma|uma]] of 5-15, i.e., the second player receives 5,000 points from the third, and the first player receives 15,000 points from last place. When player scores tie, the tying players share their Uma; ties are not resolved by player seating order. Players tying for first share any leftover Riichi sticks. There is no [[Oka|oka]]. Scores are ''not'' rounded to the nearest thousand.


After each Hanchan, players receive a relatively large [[Uma|uma]] of 10-30, i.e., the second player receives 10,000 points from the third, and the first player receives 30,000 points from last place. When player scores tie, the tying players share their Uma; ties are not resolved by player seating order. Players tying for first share any leftover Riichi sticks. There is no [[Oka|oka]]. Scores are ''not'' rounded to the nearest thousand.
In the end of the Hanchan, the scores of each player are typically marked as the difference between the starting points (30,000) and their current amount of points, divided by 1,000. Uma is added on top of this to form the total. For example, a player finishing at 1st place with 60,000 points would mark their score as +30, followed by the uma (+15), totaling up to +45. Finally, any penalties (e.g. for a chombo) are subtracted from the liable players' total score for that Hanchan.


=== Time limit ===
=== Time limit ===


When played with a time limit, a gong sounds 15 minutes before end. Only one more valid hand may be started after the gong. A hand starts when the dice are thrown. Won hands, exhaustive draws, and abortive draws all constitute a valid hand. Chombo renders a hand invalid, therefore another hand must be played.
When played with a time limit, a gong sounds 15 minutes before end. Only one more valid hand may be started after the gong. A hand starts when the dice are thrown. Won hands and exhaustive draws constitute a valid hand. Chombo renders a hand invalid, therefore another hand must be played.


== External links ==
== External links ==
[[Category:Rule sets]]
[[Category:European tournaments]]


* [http://mahjong-europe.org/docs/riichi_EN.pdf EMA RCR official rulebook]
* [http://mahjong-europe.org/portal/index.php?option=com_content&view=article&id=30&Itemid=166 EMA RCR official rulebook]
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