List of yaku

One han closed only

Yaku	Japanese	Open/Closed
Tsumo	門前清自摸和	Closed only
This yaku may apply to any closed hand. Any player who draws a winning tile with a closed hand is awarded this yaku.

Riichi	立直	Closed only
This is a special yaku applied to closed tenpai hands, which requires the player to make a declaration and "wager".

Ippatasu	一発	Closed only
This is applied when the player calling riichi wins within 4 tile draws/discards. In addition, the cycle must not be interrupted by tile calls.

Pinfu	平和	Closed only
Winning tile: or
Typicially known as "all sequences", this is a hand that does not gain fu based on composition, other than that of a closed ron.

Iipeiko	一盃口	Closed only

This hand includes two identical sequences.

Yaku	Japanese	Open/Closed
Haitei raoyue	海底撈月	Open or Closed
The hand is completed with the last tile on the wall.

Houtei raoyui	河底撈魚	Open or Closed
The hand is completed with the very last discarded tile.

Rinshan kaihou	嶺上開花	Open or Closed
This yaku is awarded upon winning 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	Open or Closed (Closed only on variation)
Winning tile: or
A hand composed of only inside (numbers 2-8) tiles

Yakuhai	役牌	Open or Closed
Winning tile: or
A hand with at least one group of dragon tiles, seat wind, or round wind tiles. This hand can be valued at 1 han for each group.

Double riichi 「ダブルリーチ」 Riichi declared on the first round. Closed only.
Chii toitsu 「七対子」 hand with seven different pairs. Closed only.
Chanta 「全帯幺九」 All sets contain terminals or honours.
sanshoku doujun 「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 ankou 「三暗刻」3 Pons concealed
Sanshoku doukou 「三色同刻」 hand with 3 Pons of the same "number".
San kantsu 「三槓子」 hand with three Kans.

Honitsu 「混一色」 hand with tiles from only one of the three suits, in combination with honours.
Ryanpeikou 「二盃口」 Two sets of "Iipeiko". Closed only.
Junchan 「純全帯么」 All sets contain at least one terminal.

Hounrotou 「混老頭対々和」 All terminals and honors.
Shousangen 「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.

This is the only yaku set at 6 han, where the number drops to 5 han when opened.

Chinitsu 「清一色」 hand composed entirely of tiles from only one of the three suits.

Kokushi musou 「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)
Chinrotou 「清老頭」 All terminals
Daisangen 「大三元」 A hand with three Pon's or Kan's sets of the three Dragons.
Suu ankou 「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)
Suu kantsu「四槓子」 A hand with four Kan's.
Shousuushi 「小四喜」 A hand with three Pon's/Kan's sets of winds of and a pair of winds.
Daisuushi 「大四喜」 A hand with four Pon's/Kan's of winds. (Double Yakuman, depending on the rules)
Chuuren poutou 「九連宝燈」 A hand consisting of the tiles 1112345678999 in the same suit plus any one extra tile of the same suit.
Ryuu iisou 「緑一色」 A hand composed entirely of green tiles: 2, 3, 4, 6 and 8 Sou and Hatsu.
Tsuu iisou 「字一色」 A hand composed entirely of honour tiles.

This yaku does not specifically deal with a player's hand, but rather the player's discards. By default, this hand is set to 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.

Renhou 「人和」 A non-dealer player wins on a discard at the first round. Variance may set this to mangan, or not used at all.