Chi Sequence of 3 consecutive of one suit. (e.g. 4-5-6)
Pon Three of a kind.
Kan Four of a kind.
The basics of forming a Mahjong hand:
All complete hands are made up of 14 tiles, 12 from 4 sets of 3 consecutive tiles and 2 from one pair. Sets consist of three (or 4, if a kan is made) of the same tile, or consecutive runs of tiles (e.g. 6,7,8) In most mahjong games, having one or more yaku is necessary to complete a hand.
Scoring Table
Bottom half: Dealer scoring
Top half: Regular player scoring
* Numbers not in parentheses are points gained.
* Number in parentheses are points lost.
* On the non-dealer table, the larger number are the points lost by the player sitting East.
Yaku hands and values:
NOTE: With exception for Yakuman hands, subtract 1 Han if Open.
1 Han (Closed hands only)
Tsumo 「門前清自摸和」 You draw a winning tile from the wall.
Riichi 「立直」 You declare that you're one tile away from a finished hand. This locks your hand down.
Pinfu 「平和」 Your hand is composed of 4 Chis and a valueless pair. The winning tile is required to finish a two-sided wait. "The basic hand."
Iipeiko 「一盃口」 A hand with two identical Chi's.
1 Han
Ippatsu 「一発」 This is awarded when you win on the first four turns after declaring Reach. A Pon/Chi/Kan from another player cancels Ippatsu.
Haitei 「海底撈月」 The hand is completed with the last tile on the wall.
Hotei 「河底撈魚」 The hand is completed with another player's last discard.
Rinshan Kaihou 「嶺上開花」 The hand is completed with a tile from the dead wall.
Chankan 「搶槓」 The winning tile for a hand is called on another player's Kan. Essentially, the tile needed to complete a Kan is stolen to complete a winning hand.
Tanyao 「断幺九」 A hand composed of only inside (numbers 2-8) tiles
2 Han
Double Richi 「ダブルリーチ」 Richi declared on the first round. Closed only.
Chi Toitsu 「七対子」 Hand with seven different pairs. Closed only.
Chanta 「全帯幺九」 All sets contain terminals or honours.
Sanshiki / Sanshoku 「三色同順」 A hand with three Chi's of the same numerical sequence, one of each suit.
Ittsu 「一通貫」 A hand with a set 1 through 9 of a single suit.
Toi Toi 「対々」 All Pons hand.
San an kou 「三暗刻」3 Pons concealed
Sanshoku Douko 「三色同刻」 Hand with 3 Pons of the same "number".
San Kansu 「三槓子」 Hand with three Kans.
3 Han
Honitsu 「混一色」 Hand with tiles from only one of the three suits, in combination with honours.
Ryanpeiko 「二盃口」 Two sets of "Iipeiko". Closed only.
Junchan 「純全帯么」 All sets contain at least one terminal.
4 Han
Honroto Toiho 「混老頭対々和」 All terminals and honors.
Shosangen 「小三元」 The hand contains two sets of 3 dragon tiles and a pair of the third dragon tiles.
These actually count as two. But they're 4 due to the additional yaku of Toi Toi and 2x Yakuhai respectively.
6 Han
Chinitsu 「清一色」 Hand composed entirely of tiles from only one of the three suits.
Yakuman
Kokushi Muso 「国士無双」 Hand with one of each of the 13 different terminal and honour tiles plus one extra terminal or honour tile. (For some rules, Double Yakuman for a 13-wait set)
Chinroto 「清老頭」 All terminals
Daisangen 「大三元」 A hand with three Pon's or Kan's sets of the three Dragons.
Su Anko 「四暗刻」 A concealed hand with four concealed Pon's. (Tsumo only and depending on rules, Double Yakuman if win on a pair wait)
Su Kantsu「四槓子」 A hand with four Kan's.
Shosushi 「小四喜」 A hand with three Pon's/Kan's sets of winds of and a pair of winds.
Daisushi 「大四喜」 A hand with four Pon's/Kan's of winds. (Double Yakuman, depending on the rules)
Churen Poto 「九連宝燈」 A hand consisting of the tiles 1112345678999 in the same suit plus any one extra tile of the same suit.
Ryu Iso 「緑一色」 A Hand composed entirely of green tiles: 2, 3, 4, 6 and 8 Sou and Hatsu.
Tsu Iso 「字一色」 A hand composed entirely of honour tiles.
First Round Yakuman
Tenho 「天和」 The dealer wins on his first turn.
Chiho 「地和」 A non-dealer player wins on a draw tile at the first round.
Renho 「人和」 A non-dealer player wins on a discard at the first round.
Special case (Mangan)
Nagashi Mangan 「流し満貫」 All the discards are terminals or honors. Plus, none of the discards were called pon or chi to form melds.
Unfortunately, my first panel had its awkward moments, where things weren't going smoothly; and eventually, I saw about half the people ending up leaving.
That's mainly because they couldn't participate with the actual mahjong tables. Next year, may have to stick to just 1 table, and use a webcam.
There are ways of working out who it is but it's a labour-intensive process. When it was happening in the Dere Girls Alliance club I managed to narrow it down to 4 people, then made a comment saying what I was doing and it stopped. It took me over an hour of my time doing that, though, and there were a couple of things that made it easier than it would otherwise have been. On the other hand there are less people in this club.
