japanese mahjong dora. The basics are Betaori, Suji, and Kabe. japanese mahjong dora

 
 The basics are Betaori, Suji, and Kabejapanese mahjong dora  Two pei on ura dora bring the hand to riichi toitoi sanankou dabuton dora 8 aka 1 ura 6, for a total of 22 han

Generally, when aka dora are included, a 5 from each suit will be replaced with. Resources-Contact Us-Press Inquiries-Site Map-English-Chinese Simplified-Chinese Traditional-Spanish. 1 Overview;. The main mahjong article contains general terms, but only English and Japanese terms. Players begin with 13 tiles and draw a new tile each turn. 2. The strategy I use is basically to go out with whatever I can without stealing any tiles. Dora indicator: In the top-left corner of your screen in a match, the Dora is indicated by the face-up tile(s), which mark the next tile in the suit as the Dora. Dora are based on those flipped-up tiles – the Dora is one tile higher than the flipped-up tile (the ‘Indicator’). indicator is a suit tile, the dora is the next tile in the same suit, e. So it’s not uncommon for a Mahjong group to rent a table in a parlor for their social game. This article uses bare URLs, which are uninformative and vulnerable to link rot. Jihai 「字牌」 are the honor tiles. Japanese mahjong is a standardized form of mahjong in Japan and is also found prevalently in video games. Dora are not regarded as yaku, and no hand can be won without a yaku even if there are some dora tiles. Typically, Japanese tiles are individually about the size. Even with a base of 2 han, the number of kan calls adds the probability of additional dora, which may have an immediate impact on the hand value. Easy. a. In most instances, to form high value winnings with these combinations, these players will need to “chi” or. 1. Would settle for the pants on head bizarreness of american mahjong but I feel its changing yaku list would confuse folks in other modes as to what legal yaku normally are in riichi mahjong lol Gotta say though that DORA DORA DORA mode where you start with several dora flipped at game start. 05 STARTING A GAME Y88b d88P "Y88888 888 "Y88888 "Y8888 o Okinawa "Y8888P 8 o Tokyo 10 SCORE CALCULATION o Mahjong Menu o Points and Minipoints 06 MAHJONG TILES o Limits o The Set o Draws and Honba o Dots o Uma o Bamboo 11 CONTROLS o Characters 12 DISPLAY o Winds o The Table o Dragons o. 10 Sort by: Open comment sort options Add a Comment [deleted] • 7 yr. This tile indicates which tile is dora. thanks! That's just "LUCK" as a stat in your profile. Ultimately, it is up to the player to pick and choose tiles to attain the best result possible. It is believed that dora means dragon, but it hasn’t got anything to do with Japanese Mahjong’s dragon tiles. (It means that they will add 1 han to the value of your hand but you still need a valid yaku to win) -A discarded red five will never count as dora, even when in riichi. which no one ever does anymore. Even though tiles are primarily used to play the game, the game is available online and can be played with regular mahjong playing cards. With only one pair and one more taatsu, though, it looks like it would be slow to develop. 1. Red fives are red-colored five tiles, behaving just like regular five tiles but worth bonus points (dora). Riichi mahjong is a Japanese variant of the game that is exciting and sometimes unpredictable with the addition of extra Dora tiles. However, just because dora are worth han does not mean that they are a yaku. Wanpai 「王牌」 are the tiles used to form the dead wall. In each hand, the goal is to construct a valid Mahjong hand from drawn and/or claimed tiles. A tile possessing dora is called a dora tile, or simply dora. Japanese tile sets often include red fives. Fu 「符」 (pronounced as foo) is a component of scoring. Mahjong School has three ways to help you learn Japanese Mahjong. My rationale is that since nobody is going to discard a dora tile, you will more likely have to self-draw the tile, so calling riichi should. One – Each numbered suit had one dora each. This yaku may apply to any closed hand and may be declared upon achieving tenpai. External links. Kan during riichi has to be discrete because of a few considerations. Three combinations actually form yakuman: Toitoi + Junchan = Chinroutou. Touhou Gensou Mahjong is a 4-player/3-player mahjong game featuring a total of over 120 characters from over 20 successive Touhou Project titles. season or joker tiles, which are not used in riichi mahjong. Released Feb 19, 1993. g. A pair of any of them is worth 2 fu (although it means that pinfu cannot be scored), and a group of them scores yakuhai, a yaku worth 1 han. There are other ways to defend in Japanese Mahjong as well. Mahjong is a game of skill, intelligence, calculation and luck – and is usually played by four people. These chips are paid directly from player to player, along with the points for the hand (the chips do not affect the points won or lost, nor do they count as points in any way). Japanese Mahjong How to play Mahjong. In addition to scoring changes, the rules of rīchi (ready hand) and dora (bonus tiles) are unique highlights of this variant. seven bamboo is dora if six bamboo is the dora indicator. $7599. Japanese Mahjong (Japanese: ⿇雀, ⿇将 or マージャン; mājan), also known as Rīchi Mahjong, is a variation of mahjong. At the start of each deal, a tile is randomly selected and. Dora are used which allow for bonus points if you incorporate certain tiles in your hand. . The riichi and dora mark the highlights of the game. Here’s how a day goes at a typical parlor. If three players call ron on the same discard by the fourth player, the hand is aborted and no player. 1→2→3→4→5→6→7→8→ 9→1, East→. In Japanese Mahjong, it is frequently beneficial to keep the hand closed, that is, to refrain from forming melds through calling tiles. Dorashijihai: ドラ指示牌: The Dora indicator – the physical tile that determines the value of the tile that is dora. All your sets have to be sequences. Just like all tile calls, the call itself is optional; thus, an opportunity to call kan is not mandatory. seven bamboo is dora if six bamboo is the dora indicator. For example, reach tanyao dora 1 reddora 1 uradora 1 would be worth 2 chips. It is also called sakizuke 「先付け」 . This game is rendered in mobile-friendly HTML5, so it offers. Dora are used which allow for bonus points if you incorporate certain tiles in your hand. 10+. HAN: These are Yaku plus Dora. Various rules have been introduced, and the familiar Japanese rules! Come true Real online mahjong beyond the game. There are also tsu tiles (honor), which are split between dragon tiles and wind tiles. External links. 1/15. The player declares “riichi”, discards their tile sideways, and places a 1,000-point stick on the table as a deposit. The rule is called nuki dora, which means "pull out" dora. It shares similarities with Rummikub, and card games such as gin rummy and poker. The hand's waiting patterns includes tiles which do produce valid hands. With the "Red Dora" rule turned on, you can use special red tiles to add extra points. Both pages have the AMOS JPII and JP EX tables, their economy versions without and with point counting respectively, available. However, just because dora are worth han does not mean that they are a yaku. Tokio Mahjong is a Mahjong Solitaire game which celebrates the Edo period of Japanese history. . Here you may see my mail: From: <> Sent: 08 January 2018 To: Mahjong Club Support Subject: 3 Player Riichi Mahjong Sanma Rules Hi there! I read your rulebook of the 3 player riichi variant (sanma)(webpage), and I have some questions regarding the rules. Sequences can NOT wrap (891 etc). The goal of this project is to create a Mahjong AI for a variant of rules of 4-player Japanese Riichi Mahjong that can beat existing top-tier Mahjong AIs, including NAGA and Suphx, and even top professional human players. So, if you see the 2 of bamboo as the dora indicator, then the 3 of bamboo is dora. ; Privacy. Each red five contained in the winning hand counts as a "dora" (worth one fan). Multiply it by a "base exponential" of 4 = 2^2. 1-2-3-4-5-6-7-8-9-1. Identical means that both shuntsu must be of the same numbers and suit. First of all, don't read too many guides, they will melt your brain. Oct 30, 2021. A valid Mahjong hand generally consists of 14 tiles: 4 sets and a pair, where the sets can be sequences in the same suit or triplets. Japanese Mahjong (麻雀 or 麻将) is a table game similar to Poker that can be played with two to four people. 1. Finally, Japanese Mahjong uses Dora tiles. Win after declaring riichi To make a declaration: (The hand must be closed and in tenpai. While it keeps the game's basic rules, this version features unique rules like the use of richii and dora. Or define…Red fives are one of the most characteristic elements of Japanese mahjong, but also one of the most hotly debated, second only to the ura-dora (but I’ll go into that another time). 8 The deal 8 3 Game play 9 3. Among the yaku, riichi occurs at least 40% of the time across different mahjong platforms and professional settings. Or define…Kan has some special rules applied to it. There are thus only two of these tiles. This tile indicates which tile is dora. At the start of each hand, a tile (i. There are no season or flower tiles. 麻雀何切るシミュレーター. 1 Phases of the game 9 3. Ura dora acts like dora tiles and gives you an additional yaku for each applicable tile you have in your hand. The rule is called nuki dora, which means "pull out" dora. This literally translates to “red dora”, and refers to special dora tiles that are completely red. Akadora is the usage of red dora. The dead wall is 11 stacks long. Yesterday I tried to reply directly to you about your Kan Dora question but this is what came back: >Subj: Returned mail: User unknown >Date: 11/20/1999 6:11:24 PM Pacific Standard TimeMahjong. American Mahjong is also pretty good. Yo, this is UmaiKeiki once again. 1 pair of the same suit/special-type (mantou, or in Chinese, the mahjong) You must get a winning shape and score at least 1 han to win ( Yaku = condition that gives you at least 1 han) Read. mahjong, for example. Try to keep that and use it in your hand if you get it. A key component of riichi mahjong is the dora. Jikaze 「自風」 are the seat wind designations for each player. 3K h. This game is rendered in mobile-friendly HTML5, so it offers cross-device gameplay. Turn the "Red Dora" option to on - this means you (and the AI) can get red versions of the tiles which are more valuable and an easy way to get a scoring hand. Unlike the other yakuman patterns, the name "kazoe yakuman" is a generic name. In some Japanese mahjong sets, one 5 bamboo is coloured red and one 5 circle tile is coloured red (the other matching three of each tile is the normal colour). This game is rendered in mobile-friendly HTML5, so it offers cross-device gameplay. Other winds are okay, in this case East or North. Damaten: closed hand tenpai without calling riichi, especially effective in 4:30 area. The second element of the game is also present in some Chinese variants, but it’s more strictly enforced in Japanese Mahjong since many hands can’t be opened or their value is greatly diminished when they are. (Which one is the first doesn't really matter, but the notation standard is 5z for white, 6z for green, and 7z for red--1z, 2z, 3z and 4z are east, south, west and north of course) (Historically the red dragon came first, it means "middle. - Configurable rule sets: Play with official JPML, EMA, or WRC rules. The PS2 game Yakuza 2 has a lot to answer for - about two years ago it got me into both playing Mahjong and. Tournaments often provide each player with a single 1,000-point-stick for Riichi declarations. Japanese Mahjong is played with a tiered system of LIMITS which apply to the points you can win off a hand. Yakuman DS is a Mahjong video game developed by Nintendo and Mediakite and published by Nintendo for the Nintendo DS. Rules variations allow the customization on the use of dora. 2018-03-12: Player: jsdf Rank: 二段 Round: 東 4 局 1 本場 Haipai: Draw. Sou (索子, sōzu ,) or Bamboo tiles are the tiles with the green and red bamboo. The low hand values kinda go along with this -- play tends toward attempts for minimal losses and medium wins rather than big wins. In this episode of Riichi Mahjong Guide, we cover a few things that you should consider regarding honor tiles and dora tiles. They must then choose a tile to discard: either the new tile or one of the tiles in their hand. The first and most prominent rule is the inclusion of “aka dora”. Then I drew 4m. Daburu-Riichi (2 fan) First turn Riichi. Upon claiming a discard, the player's hand. Japanese Mahjong: Japanese Mahjong is a completely different game from the tile-matching Mahjong Solitaire. 1. ในปี 1924 ทหารชื่อ Saburo Hirayama ได้นำเกมดังกล่าวมาที่ญี่ปุ่น ในโตเกียว เขาเริ่มเล่นไพ่นกกระจอกคลับ ห้องนั่งเล่น และโรงเรียน ในปีต่อมา. For example, if the. This would mean the dora tile is 3pin. Traditional Japanese mahjong game with lovely ACG characters, and all kinds of anime memes. "How to Play", "Hands list" and "Glossary" are also available for Mah-jong…. There are three tile suits (like standard mahjong). I. Japanese Mahjong has a unique scoring system,. Japanese Riichi Mahjong for all skill levels. If there's a North dora visible, then East is the dora tile. There are two forms of dora which may optionally be used in three-player mahjong. The patterns are also worth more fan's (doubles). season or joker tiles, which are not used in riichi mahjong. Riichi 「立直」 or 「リーチ」 is the most commonly used yaku in the game. Japanese mahjong hands pdf download. g. This is not the case. All tiles shown in the discards, dora indicator(s), and even one's own hand. TheShirou97 • 1 yr. Thus, different. In Japanese mahjong, you need to have a yaku (a special scoring element, which could be a tile pattern or a special way of going out) worth at least one fan minimum (iihan shibari) before you are permitted to declare a win. Japanese Mahjong Set: The most commonly played variant in Japan and Europe and the chosen Mahjong version of the European Mahjong Association; Plays with "Riichi" scoring rules and "Dora" tiles which throws an extra element of luck and uncertainty into the mix for a thrilling game! Ura dora is the tile below the dora tile that you get to reveal if you win a hand with riichi. Choose to play any of 366 different board layouts and see how quickly you can clear the board of stones. The game is named after the rare winning hands called yakuman (役満). From Japanese Mahjong Wiki. ago. Dora is classified into 4 types, being: Open Dora, Kan Dora, Ura Dora, and Red Five. Unlike the numbered suits, these tiles cannot be mixed together to form sequences. 1 Dora bonus tiles. Ideally, players are encouraged to incorporate them into their hands to supplement their value. This is in contrast to some of the top mahjong AI projects today, which are. Sanchahou 「三家和」, literally means "three (san) players (cha) win (hou)". See Dora main article. In addition, tile discards are specifically arranged in front of each player by discard order. Dora ・ The on-screen dora indicator shows the tiles that award dora bonuses (unlike some variations where the tiles that receive the bonus are the next in sequence from the tile used as the indicator). This project is a personal one by myself. In this lesson, we will cover the most common yaku in riichi mahjong, riichi. Every kind of tile can become a dora tile. Even if you didn’t win immediately after calling a kan, opening. Warrior Lv 90. Modern Japanese Mahjong has taken that still further. the top tile over to determine the dora indicator Dora indicator is East (South is dora). Japanese Mahjong is played through several hands. Winning in the turn you declared riichi gives 1 han. "I play Japanese Riichi/Dora Majan, and I need to know how to play with just 3 players. Used in Japanese Riichi mahjong. After the dealer has 5 markers (for having won 5 successive hands), the game's minimum win. The redHe does! It's 3 players so the Kita can be called for an extra Yaku, the Nukidora. Players may declare Riichi with any score. Chinese mahjong is less strict with hand requirements leading to faster hand wins . ‎Authentic Japanese mahjong with riichi mechanics and dora tiles. East-South-West-North-East. Originally Posted by Hercub. Wiki by expanding it. Kan. Honiisou 「混一色」 is a standard yaku. I feel like the standard dora are enough to add interest, and the red dora can often push an already great scoring hand just over the edge into the absurd. 2. Hashes for pymahjong-1. This page was last edited on 8 July 2014, at 04:58. By rule, East is always the dealer, while South is to. curve and they also serve as a record of when a player declared Riichi. This tile is called the dora indicator, and it tells. Once you have decided to pursue the 7 pairs, consider discarding the tiles in the following order: 1. Dora is not counted as yaku, and having it without yaku does not meet the one yaku requirement for a winning hand. A dora tile adds the same number of han value as the amount of its corresponding “dora indicator” tiles. Japanese Mahjong is the most commonly used form of mahjong game among Japanese. It is a tabletop game that is played by four players, with each player having a hand which they must try and complete to win points from the other players. Mahjong strategy. In Riichi it is Haku (White) - Hatsu (Green) - Chun (Red). 1. Authentic Japanese mahjong with riichi mechanics and dora tiles. Sanma setup features 108 tiles, with the 2-8 tiles in one suit (typically the Manzu) removed. As such, riichi is attainable via numerous hand configurations. Players start with 0 points and may sink into negative scores without ending the game. A single open call invalidates the yaku, even if the pattern exists within the hand. others. A player who has one red dora tile in their hand scores one bonus point, and if they have both red dora tiles they. Freaking Mahjong. FAQ 13C. Dora Indicator (ドラ表示牌, dora hyoujihai) A tile in the dead wall that indicates which tile is the dora. From this point onward, the player cannot change their hand and must discard every drawn tile except for the winning. Players begin with 13 tiles and draw a new tile each turn. A game consisting of an East and South round. Japan Castle Mahjong is a 40-stage timed Tower Mahjong Solitaire game. Iipeikou 「一盃口」 is a standard yaku involving two identical sequences. Archaic. Playing in person that is what you would do, but the game does it automatically for you. 7 The dora indicator Count three tiles into the dead wall from the original break in the wall, and turn the top tile over to determine the dora indicator. A blend of cute, appealing anime girls with multiplayer online Japanese Mahjong. Let's say the dora indicator shows 2pin. A set may come with four red 5's: 1 souzu, 1 manzu, and 2 pinzu. Mahjong School has three ways to help you learn Japanese Mahjong. As the best variant for the beginners, I suggest Sichuan Bloody Rules (SBR). Hi Mahjong enthusiasts, I'm a FF14 players since 2. - Multiple AIs. act of having only a single yaku (mostly referred to Riichi Nomi, but might also be used for tanyao), without any visible dora. It is much safer to do so if Kan-Dora are not in use. Japanese mahjong, yaku is a specific combination of tiles that increases the value of the players hand. How to play Japanese Mahjong. Mahjong tiles (Chinese: 麻將牌 or 麻雀牌; pinyin: májiàngpái; Cantonese Jyutping: maa 4 zoek 3 paai 2; Japanese: 麻雀牌; rōmaji: mājanpai) are tiles of Chinese origin that are used to play mahjong as well as mahjong solitaire and other games. Japanese tile sets often include red fives. Dora. It follows typical Japanese mahjong rules, although there are a few exceptions (mentioned below). Japanese Riichi Mahjong. In every game, one tile is automatically chosen as a Dora indicator, meaning the tile next to Dora indicator is Dora. Japanese (Riichi) Mahjong. Sanchahou Sanchahou invoked on dora houtei. Concealed sequence. , bonus tiles. 100k points; Alarm clock or timer; Terminology tenpai One away from mahjong. 1 The Mahjong calculator. Fun, but. For example, reach tanyao dora 1 reddora 1 uradora 1 would be worth 2 chips. The parlor I went to gave chips for closed aka dora, ura dora, and iipatsu. Play Japan Mahjong online for free. Four self-drawn identical tiles set aside as a kantsu. However, a handful of mahjong hands can be formed with four complete groups, while needing to finish the pair. White-Green-Red-White. With the "Red Dora" rule turned on, you can use special red tiles to add extra points to scores. One last thing, gathering dora (the next tile in the sequence following the tile in the middle; in this case it's the one with 5 bamboo sticks) gives you extra points when you win, but dora in itself isn't a yaku. Japanese or Riichi Mahjong is a specific variant of the traditional Chinese Mahjong game. If there is more than one way to arrange the winning hand, the arrangement with the highest han is used. Japanese riichi/dora majan for mobile: mahjongsoul. There are tournaments and rule sets without red 5 and also no open all simples and a lot of players don't like that as it tends to be rather slow and hard to win, as every hand is closed and there is no action. 2. Modern Japanese mahjong has a one-Han minimum - and extra Han from having Dora bonus tiles don't count for it - so that's why you always need at least one combination. The red fives are sometimes used to replace normal fives, so that each suit has one red five and three normal fives. The last 14 tiles are set aside as the dead wall. Japanese Mahjong Set: Making use of the "Riichi" scoring rules and the "Dora" tiles, this mahjong set throws more elements of luck and uncertainty into the mix for an exciting game! 144 Large Size Riichi Tiles: Each white tile is cleanly contrasted against a yellow backside and measures 1. Also, Yakuman direct hit gave you 30 chips, and tsumo 20. In Japanese Mahjong, yaku (Japanese: 役) is a condition that determines the value of the player's hand. Mahjong Hands (Basic) With a very few exceptions all yaku hands are standard “mahjong hands” which consist of 4 melds and a pair. Japanese Mahjong Set (x 2). In other words, the current state of the hand does not produce yaku while tenpai. Calls ・ Novice Mahjong, Advanced Mahjong, and Four-player Mahjong (Kuitan enabled) all use the kuitan rule. 三槓子; Sankantsu in Japanese Wikipedia2. The 1/5/9 Craks, and the North wind tiles, all act like flowers (as flowers are used in all Asian forms except Japanese). Dealing. Black. A blend of cute, appealing anime girls with multiplayer online Japanese Mahjong. キタ――― (゚∀゚)―――― !! North, south, east, and west winds. With the "Red Dora" rule turned on, you can use special red tiles to add extra points to scores. Also, applying the Red Dora in the rules makes you have additional hans for every Red 5s you have in your hand, also there is a Dora tile in each match revealed in the middle (actually, the tile revealed in the middle is the tile just before the Dora bonus one in the sequence), boosted by further Dora tiles in case of. 7 The dora indicator Count three tiles into the dead wall from the original break in the wall, and turn the top tile over to determine the dora indicator. If you are a beginner or plan to introduce new people to mahjong I would strongly suggest sticking to one variant or not introduce the 1-yaku/8-point requirement and. The Dora is always the next tile up from the Dora indicator. At the end the results are displayed, even if there are no valid yaku. So, the possession of dora is best considered as a bonus. 1 That's more than 2 years now! From what I have seen, at least is the West, it had a very rocky path to being an. There are yet more scoring patterns, including "2 Identical Sequences" (Same Height) and "3 Similar Sequences" (3 Sisters). The main mahjong article contains general terms, but only English and Japanese terms. A true full game of Mahjong is mininum sixteen hands. Tiles that constitute a. This works in the same way for the dora. g. Specifically, it is the tile that is one higher than the "dora indicator". The han and fu are plugged into an equation to derive the value of the hand. In every game, one tile is automatically chosen as a Dora indicator, meaning the tile next to Dora indicator is Dora. 1→2→3→4→5→6→7→8→ 9→1 , East→South→West→North , White. In this lesson, we will cover a few common optional rules in riichi mahjong. The game also features dora, that allow a hand to add han value, but they do not count as yaku. Pin (筒子, pinzu ,) or Circle tiles are the tiles with the red and blue circles. Two pei on ura dora bring the hand to riichi toitoi sanankou dabuton dora 8 aka 1 ura 6, for a total of 22 han. - Learn how to play: Tutorials and game instructions for new players. In addition, eleven additional patterns are classed as yakuman. ประวัติศาสตร์. Mahjong Game Rules-Riichi Competition Mahjong Rules with complete description of Mahjong games in Riichi style. It is essential to know the yaku for game strategy, since a player must have a minimum of one yaku in their hand in order to legally win a hand. The triples can be any combination of triplets (three copies of the same tile) or runs (three tiles of the same suit in sequential order). As in it shows a 9-man and thus the dora is a 1-man. With the "Kuitan" rule active, you can go out on an open hand of simples. #2. Red Dora Tiles. Search for:. This is a very loose page for describing game play, the hands. Most open and closed-hand elements in Chinese Mahjong score the same. This probably came about because Osamu and Fukuchi-senseiread each other’s. Here is the sketch of how it works: There are 8 joker tiles in total. Every kind of tile can become a dora tile. 「本場」. Even though tiles are primarily used to play the game, the game is available online and can be. 2 Distributing the tiles Players follow suit, taking four tiles at a time, in the standard order (East-South-West-North). The 3 players each build a wall 18 tiles long, 2 tiles high. 3. Then, if a valid hand is found it loops through a list of yaku to see if the hand matches any. While the basic rules to the game are retained, the variation features a unique set of rules such as rīchi and the use of dora. A closed kan is better than any open kan, simply because it keeps your hand closed, and cannot be affected by your opponents. When playing it makes it easy to see what the Dora indicator is and how many tiles are left in the wall. Obviously I can only include the most common words or else this post would never end… English list. How to play Dragon tiles effectively in Japanese mahjong. not dragons, seat wind, or round wind). Then, if a valid hand is found it loops through a list of yaku to see if the hand matches any. Varied. There are other. A kan has a two-fold advantage: a player is guaranteed to have all of one kind of tile, as there are only 4 of each kind, and if a player chooses, the option of calling kan is available. 2 Mahjong hand 9. -You win a hand with riichi and you hit ura dora (1 shugi for each ura dora tile in your hand). Battle of Darkness 「闇夜の戦」 (Yamiyo no sen) is a room providing gameplay of Dark Mahjong 「闇麻雀」, originated in manga series Mamiya: Dark Mahjong 「闇麻のマミヤ」 (Yami-ma no Mamiya). They must then choose a tile to discard: either the new tile or one of the tiles in their hand. d) Dora. These rules were later adopted by Mahjong Time, replacing their existing rule set. home news characters. Used in Japanese Riichi mahjong.