Sep 21, 2019. Riichi mahjong strategy. The personal lives and desires of the main characters play out against a historical. Fu are a set of points associated with hand composition. Winning in the turn you declared riichi gives 1 han. if you don't have any tiles to deal except the ones that deal into open riichi (e. Be aware that they change mostly every round so. There is also riichi interest among pockets of people yet to join a larger organization as well. WRC reference sheet adapted to reflect the terms being used in Final Fantasy's Doman Mahjong. With several middle pairs it is better to go for chiitoitsu because of the difficulty of obtaining pons of the middle tiles. As the name implies, the amount of mangan is exchanged. The point of the game is to try and get a valid hand of tiles as soon as possible. Good for Menzen and with good ryanmens but difficult to pon. Daichiishin. 51m checks/s 2281s: 46008 mahjong in 15000m random draws:. RNO is a two-day event with an entry fee and prizes for winners. toitoi API docs | Scoring demo A Riichi mahjong library in Rust. RT @bigblackjacobin: hard to express how close this is to the debate they actually have in the game 13 Feb 2022LysUltima Riichi! Tsumo! Toitoi! Suuankou!? Joined: Aug 6, 2017 Messages: 2,144 Likes Received: 5,552 Reading List: Link!hit LysUltima, Oct 6, 2017 #419830. 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars. Add To Library. " Toi toi toi " ( English: / ˈtɔɪ ˈtɔɪ ˈtɔɪ /) [1] is an expression used in the performing arts to wish an artist success in an imminent performance. Neither of those two yaku can win by self-draw. Riichi shanpon wait. Welcome to r/Jujutsushi, a subreddit where you can freely talk about all officially-released chapter content for the Shounen Jump series, Jujutsu Kaisen!Please make sure you've reviewed our rules and FAQs!. You pon and kan but T6 East declares riichi, and for some reason you deal the third most dangerous tile right into them for riichi ippatsu pinfu tanyao triple dora, haneman. Three Color Triplets. The common bully ( Gobiomorphus cotidianus ), or toitoi ( Māori ), is a fish endemic to New Zealand, and is present throughout the country. The platform functions as a gacha game. Riichi has 8 siblings, four are older and four are younger. Junchan is similar to chantaiyao, but chanta allows honours in. What's the easiest way to get mangan in mahjong? The simplest way is to get a Full Flush hand where all tiles are the same suit. (Very WIP. 1. Despite the difficulty of attaining this pattern, they are classed as optional. Let‘s geek out and dive into some fascinating data! Given 4 sets of tiles with 34 types each, here are the probabilities of achieving key yaku hands: Riichi – 30-40%. We provide a wide range of services including portable toilets and cabin office for events, construction and work site rental, and waste management consultation. call. tile: Provides a tile type and associated functions. Slow. Tanyao 「断么九」 or 「断幺九」 is a yaku, consisting of tile groups using numbered tiles 2-8 from any of the three main suits. Speed. 1. yml configuration for production deployment. As for winds, it depends, only the wind of the round or of your seat are safe to call pon/kan on. Otherwise, the unwanted rinshanpai may be discarded and riichi be called. You could've instead discarded 1m and been 2-away for Tanyao, which is much easier to achieve thanks. tsumoban ga nakutemo riichi ツモ番がなくてもリーチ; Riichi on the last tile: haitei riichi 海底リーチ; Concealed quad after riichi: riichi ato no ankan リーチ後の暗槓 On any tile Allows to declare a concealed quad after riichi, even if the drawn tile doesn't match. The winning hand also resembles the chiitoitsu or toitoi hands. This hand may be open or closed. It's also fairly. Toitoi Completed Yaku [Toitoi] 75. Bobcock made the changes in this American version in 1920s. Riichi is a special call that indicates that a 1000-point bet is placed. Naturally, in English terms, this hand can also be noted as a "straight", similar to the poker hand of the. Yet, unlike poker hands, yaku are worth specific "han values"; and various yaku may be combined together into one hand. bruhThe other player’s riichi is unlikely to get someone to throw a tile I’m waiting on (either 6 bamboo or red dragon now). No matter what, you should always get the proper score for counting pons if you follow these steps. Both involve all four wind tiles. well the most popular variant on this subreddit is Riichi (the Japanese variant). Otherwise, it may not. e. Finally, the last group must be a sequence, or toitoi would be scored. While appearing as a four-of-a-kind, the tiles used to form kantsu actually function as a three-of-a. ReplyChanta's pattern is similar to junchan; however, the two can never combine as junchan implies a chanta hand. Good to pon for toitoi/chanta Good for Tanyao and with good ryanmens but difficult to pon. Included a game log of mine since it seemed interesting and got my first Yakuman with it. 说明. It has same rates in gacha as MJS, but gives more pulls weekly(3, can be farmed by logining 6 times and playing 7 ranked games). Ryanpeikou is incompatible with other yaku that place conflicting requirements on the mentsu in the hand. Most flexible. It's a lot of fun but it has a lot of game mechanics (e. API documentation for the Rust `toitoi` crate. 【Chapters】0:00 Opening0:25 What is Mahjong?0:42 Mahjong Tiles?1:15 How to Win a Hand?3:08 Game Process5:08 Calling Tiles6:51 Yaku9:11 Where to Play Mahjong?9. Different meanings depending on the kanji used. Chiitoitsu + Chanta = Chiitoitsu + Honroutou. Ikkitsuukan – <5%. by. This list wouldn’t be complete without mentioning riichi mah-jong, the Japanese version of the original mah-jong game from China. Pinfu 9. Another advantage of riichi in this situation is that people with toitois are more likely to. Riichi Open Tournament. . Yet, unlike poker hands, yaku are worth specific "han values"; and various yaku may be combined together into one hand. This concept of maximising EV is the key foundation of what’s called digital mahjong strategy. More than twice the number of Han required to score a Kazoe Yakuman. Riichi Yokomitsu, Dennis Washburn (Translator) 3. This hand consists of any four tile groups and a pair that consists of only 2, 3, 4, 6, 8 of souzu and/or the green dragon tiles. Riichi passed away at New Horizons Care Home on November 20, 2014. Unlike the other yakuman patterns, the name "kazoe yakuman" is a generic name. T1 you draw a second triple, making three concealed triplets a possibility. Bc4 Qe7 5. Trong biến thể này, nhiều phần luật chơi được thay đổi so với nguyên gốc, với sự xuất hiện của riichi và dora và việc quan tâm nhiều hơn đến các quân bài đã được đánh ra. In the main menu, there’s a question mark that will list all of the yakus. Very hard. 75% x 2000 = 1500 points. Literally, this hand is composed of "all green" painted tiles. Sometimes, this move pays off; and the player is rewarded. (Very WIP. 04% or 1 in 2,464 hands. The tile layout and graphical hands, as in "physical" hands, are displayed during game play. Toi toi is usually done with an open hand. After I made the book publicly available in January 2016, a lot of people have given me feedback on various aspects of the book. 2 Han: Toitoi: All Triplets - Every. g. Today we had, not only one, but two guests from Japan! Thanks to Kei-san and Yoshikazu-san for coming and playing with us. Riichi 「立直」 (reach or ready) occurs when a player with a concealed hand is one tile away from winning, declares "riichi'' and places a 1000 point bet on the table and rotating his discarded tile 90 degrees. It said "no" for tsumo. Swallow Reversal / Return) is a yaku for claiming a winning hand on opponent's riichi declaration tile. Really (Hon’itsu) Single type tile and character tile. There are exactly seven types of honor tiles, which makes this difficult pattern possible but more difficult than the regular tsuuiisou. Ikkitsuukan 「一気通貫」, or ittsuu 「一通」 for short, is a yaku, defined as three distinct tile groups containing 123, 456, 789 of one suit. Be sure to riichi often, since riichi = free points on a table with no defense. A yaku 「役」 is a certain pattern in a mahjong hand, or a special condition under which a win is declared. And yes, you'll still be penalized. 00031 %, 1 in 323981. Riichi. On top of that, we also have a guest appearance from Bandung. Riichi can also be used to bluff - some people will fold instantly if their hand is bad. In a sense, they are synonymous to "poker hands". LAPOM Championship 2017; World Riichi Championship 2017; Other. 2. 有时也被称为 鸣牌（鳴く） 、吃牌/要牌（喰う）、亮牌（晒す）、叩牌（叩く）等。. Also, I should say, those steps are not mutually exclusive. Knocked the baby's head. 24 Apr 2023 02:04:24Hmm. If it is closed and a terminal, 2×2×2= 8 fu. Completed Yaku [Double riichi] 81. If the hand is only toitoi (usually 2600 points as non-dealer) then the low value often doesn’t justify the slow speed and high risk of opening the hand to call tiles, and. Chin’itsu. One-han yakus Tsubame gaeshi. See all toitoi's items. 1st video of the Sanbaiman Collection Yohohohohoho, enjoye it ^^Riichi Mahjong Yakuman Gameplay in a pretty game named Mahjong Soul. If you wanted to learn more, there is a useful pinned post by the mods explaining the basics. You can play for free. The lowest scoring shousangen is valued at 4 han 30 fu. justabot NUF's Cutest Bot Bot. While the basic rules to the game are retained, the variation features a unique set of rules such as riichi and the use of dora. From the "reach" section in JPML competitive rules: リーチ者は流局の際、 手牌を公開しなければならない。. Awards 3 han if closed, and 2 han if open. For toitoi (all triplets), you should ideally have some other value within your hand, be it dora, yakuhai, or honitsu. Since you want to keep the list at 5 and since your very first yaku is Toitoi I would remove Chiitoi. There is a futile pair in your hand (other 2 have been discarded). Fun fact: After more research, it turns out there is a factual backing to my original assumption about Mahjong being the most popular game in Japan. 71. I’m keeping my cool and staying dama and willing to fold if I get something dangerous. PuzzleheadedBug4815 • 18 days ago. Suji 2 and 8 are roughly equivalent to nakasuji. Double riichi: Double-ready - Declare Riichi with your starting hand before any tiles are called. Based on their feedback, I corrected some terminology inconsisten-cies and typos. Both those aiming for toitoi and those aiming for chiitoitsu discarded fewer yakuhai in early game, but in the toitoi case, yakuhai came spilling out in late game when they couldn’t be incorporated into the hand. Awesome! #riichi #mahjong #riichimahjong #japanesemahjong. This yaku involves sequences of the same numbered tiles across the three numbered suits. Daisangen 「大三元」 is a standard yakuman. We then added the number of dora visible to a third player as a variable. Toi toi toi. For new players riichi should be the default if they can't see any other yaku. If the discarded tile is claimed for a chow, pung, or kong the. And of course remove the extra tiles like the flowers and seasons. Daisharin 「大車輪」 is one of three yakuman awarded for a closed hand with the following pattern: 22334455667788. js application created with vue-cli. Nevertheless, it remains unclear how the epoxy resin and curing agent are present on the adherend surface and how they move around dynamically and react with each other to form a three-dimensional network. This hand may easily get stuck. This is a high quality numbered american set that you can perfectly use for riichi. Be2 O-O 5. But when I answered it, it awarded 2 han for sanankou. Kan「カン」 is a special tile call in the game. 04% or 1 in 2,464 hands. Inherited from Chinese variations, really no need for it in riichi. In other words, if a player is tenpai for a tile used for that specific added kan, then the player may declare a win on that tile. 737s: 15433 mahjong in 5000m random draws: 0. 2 Manzu: Caractère versus chiffre, nombre. 1. #1. Not calling too early also has the benefit of enabling very powerful hands, like riichi,toitoi,sanankou or even suuankou. Putting off the riichi until the eleventh go-round was an interesting decision (and questionable given the situation; a riichi this late only reduces the chances of winning what is a. :P Yaku Replays. As of 2008, there were around 7. Want to Read. •. <TAIKYOKU> Start of round - oya Dealer <INIT> Start of hand - seed Six element list: Round number, Number of combo sticks, Number of riichi sticks, First dice minus one, Second dice minus one, Dora indicator. As the name implies, kan must be called three times before the end of the hand. pop () ) 2) Sort hand (here i had my hand array and checked how many triplets and pairs i had) 3) Check if already won. ) Nhật Bản hay Mạt chược Riichi (tiếng Anh: Riichi Mahjong) là một biến thể của mạt chược. On one hand, winning with a riichi hand gives you at least one extra Han. 6 stars Watchers. A special pattern of chuuren poutou tenpai produces one with a unique 9-sided wait. One pitfall of tenhou and chiihou may be the accidental call for riichi due to the failure of recognition. This hand stands at 31 han and 50 fu via tsumo: 13 han from shousuushii. san'ankou > iipeikou is solved as toitoi is. You pon and kan but T6 East declares riichi, and for some reason you deal the third most dangerous tile right into them for riichi ippatsu pinfu tanyao triple dora, haneman. Difficulty. By Muller On 8 November 2017 In Strategy You may have heard of the toitoi dash – it’s the hot new meta, popularized by zeRo and his new book 0秒思考の麻雀 ( Zero-byou Shikou. Forcibly shooting for it can often mean you're breaking up a sanankou chance, so this. Toitoi Dash; Rules for Riichi; Miscellaneous Mahjong Tools. 副露. if you're one tile away from winning, the game will let you declare riichi. com Chiitoitsu 「七対子」, also known as chiitoi or niconico, is one of the standard yaku hands. Rīchi can't be declared when a player's hand is open. In serious competitive play, the maximum is the. This premise is a similar case involving suuankou, which counts as yakuman via tsumo. Eventually, Japanese Mahjong, or “Riichi Mahjong”, became the most popular tabletop game in Japan. Auto rotate discard tiles. Yaku 「役」 are specific hand patterns or conditions needed in order to score a hand. 0 forks Report repository Releases No releases published. In these cases, this would add han to the hand. Not to mention the increased risk of dealing in. Instead, they are the main factor to determine hand values. ·. 0 . (with one pair of value tiles, you can aim for a 5200 point hand with toitoi; with two pairs of them, you can aim for mangan) The benefits of riichi are that it works with any concealed hand, and the other one is that, if you win after declaring riichi, you get to see dora under the revealed dora, so if there is one revealed dora upon you winning with riichi, you can get han from the revealed dora, but then there will be a second dora that is revealed just after you. So, no point in winning this hand, you decide to wait on the riichi. Of course, the use of riichi is only advisable on the current state of the game: current point standing, other player riichi calls, potentially. No matter what, you should always get the proper score for counting pons if you follow these steps. Chankan. Basic free Moe-based battle-type mahjong game! Enjoy various battle modes from beginners to advanced players! Various types of characters can be used, and voices are popular voice actors! . With several middle pairs it is better to go for chiitoitsu because of the difficulty of obtaining pons of the middle tiles. Uru was given to Aioen Orphanage as an infant. Also, I should say, those steps are not mutually exclusive. Notable people with the name include: Reiichi Ikegami (池上 礼一) (born 1983), Japanese footballer. 6. LysUltima, Sep 23, 2017 #18. Fukushima-born Yokomitsu Riichi (1898-1947) was an essayist, writer, and critical theorist who became one of the most powerful and influential literary figures in Japan during the 1920s and 1930s. Riichi roulette. 1 Pinzu: Cercle versus sapèque. Conditions: closed hand only. So neat! Completed Yaku [Chiitoitsu] 74. However in a bizarre turn of of events they face down a Toitoi hadaka tanki and a possible character Honitsu. Sigh, the author hasn't updated the novel in 2 weeks. - Nếu không có. #2. This is one of the most popular tabletop/board games in Japan, after all! The rules of riichi mah-jong are highly synonymous with Chinese mah-jong, with some added Japanese flair and with 136 tiles. When this hand wins by. ago. Good for Menzen and with good ryanmens but difficult to. But if you are serious about ranking up and about really learning the game, you need to sit down. Towa (Toitoi) Set 4 of the same tile and then 2 of the same tile. Lots of men crush on. 2 Han: Sankantsu: Three Quads - Requires three quads, which are considered as triplets plus one extra. Toitoi + Mentsumo = Suuankou. your hand is not a stale lake of fourth place rejectance, yours is a raging torrent of river, an unstoppable flow! yours is a hand of toitoi, a hand of first. Japanese mahjong ( Japanese: 麻雀, Hepburn: Mājan), also known as riichi mahjong, is a variation of mahjong. They are as follows: At least four pairs in the early stages of the round (i. /public: Static assets that need to be copied during the build. The lowest scoring honroutou is a chiitoitsu won by ron without riichi or dora. 2 Han: Toitoi: All Triplets - Every. Japanese Mahjong, also known as Riichi Mahjong, evolved from the Chinese version and has become popular not only in Japan but also in other parts of Asia and around the world. 2. Honitsu (hand uses only a single suit plus honour tiles) See full list on osamuko. A hand with 2 han and 110 fu is also possible, as in the following for the East player in the East round: Tsumo: 2 han from sankantsu; base fu: 20; tsumo: 2; pair wait: 2; composition of hand:you retard, a toitoi riichi is the strongest hand of all! four pairs, with a dora. This hand is one of the two exceptions of the "four tile groups and one pair" requirement for tenpai hands, where the other. In Yakuza you can check the middle of the table near your name for what wind your seat and the round is for the hand. But you can still play riichi with them just use an indicator on 3 tiles for red dora (or don't use them). Discover Toitoi USA's diverse locations across the country. Ex. At discretion. Notable people with the name include: Riichi. As the name implies, kan must be called three times before the end of the hand. tanyao, toitoi, chanta, honitsu, pinfu (closed only) and chiitoitsu. This is a common issue for online gambling sites, for example for poker. The Toronto Riichi Club is excited to announce the first Toronto Riichi Open (TRO). The requirements to do so, assuming no additional yaku, are: The hand must be won by ron, as a tsumo would score 2 fu. Wordle 245 4/6 ⬜⬜⬜ ⬜ ⬜⬜⬜⬜⬜ ⬜ at this point I'm pretty sure that wordle is actually much more difficult than mahjong handle, which actually gives you a bunch of tools to deduce the answerToitoi (@RiichiToitoi) / Twitter. Player start scores may be set to any value. “@Tamanon_ they're all gonna be locked into one class like nijis”Amazing thing is~ i got two times haneman tsumo and both were sanankou~~ First was White -1 East -1 Toitoi - 2 Sanankou - 2 Second was Riichi - 1 Tsumo -1 Dora -1 Aka-1 Sanankou- 2. After learning that riichi is quite popular in Europe, I decided to write a book on riichi strategies for European players. . You know what? 10. If the hand contains no honor tiles, then the chinitsu yaku is counted instead. Giá trị: 1 han (kín) Khi bài bạn kín và đang Tenpai (nghĩa là, quân trong bài bạn đang chờ một quân cuối cùng nào đó nữa để hoàn thành bài), thì bạn có thể thực hiện yaku Riichi theo các bước: - Nói Riichi và đánh. 2. 75. Thousands of new, high-quality pictures added every day. [2] The room is starting during the collab with Akagi: The Genius Who Descended into the Darkness, and is still available in friendly room. 5 han on average, due to the chance for ippatsu and ura-dora. [2] [3] [4]Mahjong Riichi is a classic Japanese game of skill. The pros of calling kan in this hand: two open hands while you are in riichi means that you are likely the only one looking. Toronto Riichi Club. Kokushi musou 「国士無双」, also simply known as kokushi or in English as thirteen orphans, is one of the standard yakuman hands. About Me. Vector set of riichi mahjong (majiang) elements (number tiles from 1 to 9 in dots, characters, bamboos; winds: east, south, west, north; dragons: white, green, red; dice, pointers: east, south) Mahjong tile on white background . Therefore, ippatsu cannot function as a stand-alone yaku. Menzenchin Tsumo 5. Nagashi mangan. Example 1: Agari: This wait is sometimes considered to be worth double yakuman, if won by self-draw. Kokushi Musou for the memejust hit square every turn. e3 Bg7 3. Look into riichi as #6, it's easy to achieve, but a. After drawing another 5s, toitoi looks quite viable. Among the yaku, this is one of the more easier to attain; and it is also a cheap. A fourth kan converts the hand to the yakuman, suukantsu. フーロ. In addition to the tests. By far, it is the. Ippatsu 「一発」 is a yaku completely dependent on riichi. We provide a wide range of services including portable toilets and cabin office for events, construction and work site rental, and waste management consultation. If it is a Kan, multiply it by four. Toi-Toi Mobile Toilets, Nakuru. Update 2023-08-26: Check out the scores!This FAQ just covers Riichi/Japanese mahjong because it's by far the predominant variant that's discussed on this sub, and because my knowledge of other variants is pretty limited other than playing them once or twice. It has several styles of play: European/Chinese Classical; Riichi; Taiwanese; American (shudder); and even my favorite sometimes: Zung Jung. Heck I wouldn't even call that 6-man pon and use them as safe tiles. See all toitoi's items. It has a simple/clean interface, a decent selection of AI players, comprehensive stat tracking, and lots of rule options to play with (red fives, three-player games etc) Nagomi is pretty good. Double riichi - Chantaiyao - Sanshoku doujun - Ikkitsuukan - Toitoi - Sanankou - Sanshoku doukou - Sankantsu - Chiitoitsu - Honroutou. Published serially between 1928 and 1931, Shanghai tells the story of a group of Japanese expatriates living in the International Settlement at the time of the May 30th Incident of 1925. Significado de "toitoi" no dicionário inglês . yllpo. Invijible Panda Supreme Cultivation Technique of the Heavens What kind of cultivation technique do you want? How does it work? LysUltima, Sep 24, 2017 #2. Kazoe yakuman 「数え役満」 is a special class of yakuman, where hands are composed of regular yaku. Your goal is to try to get the highest point value combination. Just a good, solid, good looking Riichi Mahjong experience, single and multiplayer, on Android, in English. Once riichi is called, the player must discard. We are considering trying to set up a “feature table” for each round, or at least live-streaming the final table, but we will have to see once we determine capacity and the situation at the venue. In Japanese mahjong, yaku ( Japanese: 役) is a condition that determines the value of the player's hand. Junchantaiyaochuu 「純全帯么九」 is a terminal based yaku. Unlike poker, yaku types do not supercede each other. In this episode of Riichi Mahjong Guide, we go over a couple of triplet-based yaku, toitoi and san ankou, as well as a special yaku: chiitoitsu. 6. Honroutou likewise implies chanta and is thus incompatible. But the usual way to win with Open Riichi is with Tsumo, meaning you. Otherwise you'll need to get several combinations and/or bonus tiles. unspectacular, but I see a few plusses too: The UI is in many languages, including English. When they're in Riichi, they discard all tiles that are not winning for them, so the more opponents are in Riichi, the less control the AI has over what gets discarded. It seems that I will win a lot. You could riichi this hand but you're safely in second place and first place is 11k ahead. Just let them fight each other. Of the four pairs, at least three are easy to call (i. Kazoe yakuman. Mahjong Handle 25 3/6 ⬜⬜ ⬜⬜⬜⬜⬜⬜⬜⬜⬜⬜ ⬜⬜⬜⬜ ⬜⬜⬜ just lucked into finding out what the pair is lolIf you are tenpai for a yakuman, and you are pretty sure everyone knows it, they are already bailing. Dicionário . If we draw other pairs of suited edge tiles, we can consider. So, I haven't been playing for long, but I tried to make this little flowchart to kinda clarify for myself how I'm approaching the game and connect the Yaku I could be aiming for with my hand. In some instances, it may be considered as a yakuman, mangan, or not used at all. Among the yaku, riichi occurs at least 40% of the time across different mahjong platforms and professional settings. Toi Toi Mobile Toilet is a company that rents high-quality portable toilets for short. Modules [−] Crate toitoi. Before passing away, Riichi. Honitsu: The player wins with tiles of a single suit and some honor tiles. Using discards is best avoided most of the time in general. The short hand sanshoku more commonly refers to this yaku, rather than the significantly more difficult to achieve sanshoku doukou yaku. Yaku are split between "hand conditions" (riichi/menzen tsumo/haitei) and "hand structures" (toitoi/yakuhai/etc), as this makes more sense than simply organizing them by value. Both of the other groups must be shuntsu of different suits. "Ready hand" is a rarely used English name for this yaku. Don't go for chiitoitsu when toitoi is faster and worth more (E4-1), and don't keep random dangerous middle tiles when going for chiitoi. Among these three, “speed” is the best. It is awarded if the player receives a winning tile within an uninterrupted set of opponent tile draws after the riichi. Toitoi: A player wins with a hand consisting of only triplets (except the necessary pair). This call forms a tile grouping of four identical tiles, called kantsu「槓子」. So, the possession of dora is best considered as a bonus. Each yaku has a different point value and can affect the outcome of the game. The 100% Completion List in Like a Dragon: Ishin covers the checklist-style objectives the series typically requires related to minigames or collecting things. Riichi: The player has a fully concealed hand that is one tile away from winning and makes a wager. Once you have declared riichi (which means you are in reach), you must reveal your hand in a draw regardless if you're in tenpai. Riichi Mahjong is a Japanese version of Mahjong, a 4-player board game initially originated in China. Because of this, not all suji tiles are equally safe. This hand also includes the regular yaku of toitoi and sanankou as well as two or three yakuhai when applicable. (Toitoi) with Dora, Round / Seat Wind, and/or Dragons. @calvinized. Yaku - 1 han. basic mahjong knowledge involves learning the yaku, but it is not expected of new.