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User:Hordes/Riichi Mahjong Primer - Shorter: Difference between revisions
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User:Hordes/Riichi Mahjong Primer - Shorter (view source)
Revision as of 21:46, 20 October 2024
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Remember that you need at least 1 yaku to win (and that open hands can't use riichi to gain that yaku). | Remember that you need at least 1 yaku to win (and that open hands can't use riichi to gain that yaku). | ||
==Furiten== | |||
When you are in [[furiten]], you are completely unable to win off other players' discards. ''You can still win by self-draw, however, if you have at least 1 yaku''. | |||
The most common cause of furiten is '''when you have previously discarded a tile that your hand could now win with'''. Example: | |||
{{#mjt:34567p333m678s44z}} Waiting for: {{#mjt:2p}}, {{#mjt:5p}}, or {{#mjt:8p}} | |||
Say you discarded the {{#mjt:2p}}. You are in furiten, meaning you cannot win off ''any'' tile because you could've won with the discarded 2. If an opponent discards {{#mjt:8p}}, you cannot win, even though you never discarded that tile. | |||
* It does not matter which tile "caused" the furiten. If you are in furiten, you cannot win off any tile. | |||
* It does not matter if you couldn't win off the discarded tile due to a lack of yaku. If a tile could complete the "4 group + 1 pair" shape, it triggers furiten, even if you couldn't actually win with said tile. | |||
==Dora== | |||
Dora are bonus tiles. Every dora in hand is worth +1 han. However, you still need at least 1 [[yaku]] to win, no matter how many dora you have. | |||
At the start of each round, a [[dora]] indicator is revealed. The tile ''after'' the revealed dora indicator is the dora tile itself. | |||
For example, if {{#mjt:1p}} is the dora indicator, {{#mjt:2p}} is the dora. Having {{#mjt:2p}} in your hand will increase your hand's value. | |||
*Number tiles: {{#mjt:123456789p}}, where {{#mjt:9p}} indicator means {{#mjt:1p}} is the dora. | |||
*Dragons: {{#mjt:5z}} -> {{#mjt:6z}} -> {{#mjt:7z}} -> {{#mjt:5z}} | |||
*Winds: {{#mjt:1z}} -> {{#mjt:2z}} -> {{#mjt:3z}} -> {{#mjt:4z}} -> {{#mjt:1z}} (the same as the player order) | |||
For each [[kan]] a player makes, a new dora indicator is revealed. If the new dora indicator is the same as another, then the specified tile is worth aother han. | |||
'''Remember: A hand cannot win with no yaku, even if it has dora. A hand needs 1 yaku to win.''' | |||
===Uradora=== | |||
If you declare [[riichi]] and win, the [[uradora]] are revealed. 1 uradora indicator is revealed for each regular dora indicator. Uradora indicators work like dora indicators (the tile after the indicator is the dora tile). | |||
There is no way to know uradora before winning, so yradora are essentially random bonuses for winning with riichi. In general, ~30% of winning riichi hands contain at least 1 uradora. | |||
===Red Fives=== | |||
In most modern riichi mahjong websites, red fives are used. There is one red five in each suit (a red 5 of characters, a red 5 of bamboo, a red 5 in dots). | |||
Having the red five in your hand is worth extra points, just like a dora tile. Unlike dora, having the red five in your hand gives you value. (I.e. a red five in your hand does not make a 6 more valuable.) | |||
If a red five is the dora/uradora indicator, nothing special happens; the 6 of that suit is still a regular dora as usual. | |||
==Rounds & Hands== | |||
The game is organized into rounds and hands. | |||
* '''Hands:''' Hands start when tiles are dealt, and ends once someone wins. After the end of each hand, if no repeat occurs, the player seats are rotated counter-clockwise. | |||
* '''Rounds:''' Each game starts in the East round. A round ends once players rotate seats 4 times, meaning East round lasts from East 1-4. | |||
When starting a mahjong game, you have the choice between "East Round only" <small>tonpuusen</small> or "South Round" <small>hanchan</small>. East Round games last for 1 round; South Round games last for 2 rounds. | |||
===Dealer=== | |||
The player in the East seat is known as the dealer, who gets special benefits: | |||
* Dealer hands are worth about +50% points. | |||
* If a dealer wins, or has a ready hand at exhaustive draw, they repeat the hand <small>renchan</small>. (A repeat means they get to extend the entire game by +1 hand, while retaining the dealer seat.) | |||
===Game end=== | |||
The game itself ends under these two scenarios: | |||
* A player falls below 0 points. | |||
* It is the end of East 4 (East Round only) / South 4 (South Round <small>hanchan</small>), no dealer repeat occurs, and at least one player is at/above the target score. | |||
** If nobody hits the target score, a maximum of 1 round of overtime occurs. If a player reaches the target score, the game immediately ends. If a round passes and nobody hits the target score, the game also ends. | |||