>>535544293
ask grok

In Japanese mahjong (riichi mahjong), kuitan nashi (喰い断無し, literally "no open tanyao") is a rule variation that prohibits the tanyao yaku from being scored with an open hand. Explanation:Tanyao (All Simples) is a yaku (scoring condition) where a player's hand consists only of number tiles from 2 to 8 (no terminals [1 or 9] or honor tiles).
Under the kuitan nashi rule, tanyao can only be scored if the hand is closed (i.e., no tiles were claimed from other players' discards via calls like chii, pon, or kan). This makes it harder to achieve tanyao, as players cannot use open melds to form the hand.
If the kuitan ari rule is in play instead, tanyao can be scored with an open hand, making it easier and faster to complete, as players can call discards to form melds.

Purpose:The kuitan nashi rule is often used to emphasize skill and strategy over luck, as it prevents players from quickly forming cheap, open tanyao hands to claim bonus points (e.g., from dora tiles). It encourages players to aim for closed hands or other yaku, increasing the game's complexity.

Context:Kuitan nashi is part of stricter rulesets, like the nashi-nashi ruleset (which also forbids atozuke, or winning without a confirmed yaku). It’s common in conservative settings, such as the Japan Professional Mahjong League (JPML) A Rules, or in certain tournaments like the EMA Riichi Competition Rules.

In contrast, kuitan ari is more common in casual or "exciting" rulesets, like those used in many mahjong parlors or tournaments such as Mahjong Masters and Pro Queen.

In summary, kuitan nashi restricts tanyao to closed hands only, making it a more challenging yaku to achieve in Japanese mahjong.

>>535409435

Timing of Time Measurement
The first turn (e.g., initial discards or reaching the wall) is exempt from time measurement due to actions like setting up the wall.
Time measurement begins from the second turn.
If the first turn is skipped (e.g., North calls a Pon on South’s first discard), the next player’s move (e.g., East’s discard) is considered the second turn, and time measurement starts.

Rules for Riichi, Chi, Pon, and Kan
Riichi:
Time measurement stops upon declaring Riichi.
Players must place the Riichi declaration tile and Riichi stick.
Time measurement resumes when the next player begins their turn (e.g., drawing a tile).
For broadcast purposes, players must wait to proceed until the Riichi stick is placed.

Chi/Pon:
Time measurement pauses after the call is made.
Measurement resumes after a brief pause once the melded tiles are organized.

Kan:
Time measurement pauses after the Kan is declared.
Measurement restarts from zero when the player begins drawing the Rinshan (replacement tile) after organizing the Kan tiles and revealing the Kan Dora.

Other Situations:
Time measurement pauses during actions like exchanging point sticks or resolving table issues.
The timekeeper may adjust the timer between rounds if necessary.

Additional NotesBased on last year’s match trends, it is rare for players to use up the full 6 minutes if they maintain a normal pace.
However, prolonged deliberation may lead to running out of time, so players should be mindful of conserving time, especially in the later stages.
This rule applies not only to pro matches but also to the Saikyo-sen Tournament. As such, there will be no time-based termination of matches.

Purpose of the Rule
This rule aims to ensure fair allocation of thinking time for all players, not to rush their play. It is designed to facilitate smooth tournament progression and create engaging, viewer-friendly broadcast matches. We kindly ask for the understanding and cooperation of all participants.

>>535002180
@gork translate it

>>534794454
i don't care