Posted on March 25, 2019


Japanese Riichi Yaku List Hand Composition Yaku All Simples – Tanyao – (1) • Hand must not contain terminals, or 1’s or 9’s Triplet of Dragons, Round Wind. Yaku are hand patterns and/or luck situations in rīchi mahjong. To win a hand, besides it being a complete hand, it must have at least one scoring element. Mahjong on selfdraw (Tsumo). A player who has at least one yaku, can always declare mahjong, even if he is furiten. Riichi. Waiting on a concealed hand.

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The pattern for mayjong suit takes on a different name: Part of the strategy in mahjong is centered on maximizing this yaku count. If the 14 tiles that the dealer draws complete a hand, yakuman is awarded regardless of its contents.

This page was last modified on 2 Septemberat Navigation menu Personal tools Create account Log in. It is the only yaku set at 6 han, where the number drops to 5 han when opened.

The player can make open melds depending on the rules. See the following reference: Privacy policy About Japanese mahjong wiki Disclaimers. Japanese-language versionNovember 20, Any interruptions, including a declaration of a closed kanends the first go-around.

Retrieved from ” http: Instead, mxhjong are the main factor to determine hand values.

Japanese Mahjong yaku – Wikipedia

Any complete composition is acceptable. Some rules accept the four same tiles, for instance in the Kansai region.


If the dealer wins a hand with eight honba on the table, the hand is scored for yakuman regardless of its usual value, and then the dealership rotates. However, possession of dora are not considered as yaku, even though they provide han. Some may still count this as a single yakuman. Saki Miyanaga ‘s hand fulfills the requirements for this yakumanbut she instead names off several yaku s and a dora to barely get a counted yakuman.

Honitsu – Junchantaiyao – Ryanpeikou.

Rinshan kaihou means “a flower blooms on a ridge”. Players show their hands to confirm they are tenpai or suffer a chombo penalty.

This may count as an independent yakuman pattern. If a non-dealer is dealt 13 tiles that are one tile away from completing a hand, and then draws the fourteenth tile from the wall to complete it on the first draw when no open-meld declaration has been made, the hand is given yakuman points. The winning tile for a hand is called on another player’s Kan. 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.

Japanese-language versionJuly 10, Essentially, the tile needed to complete a Kan is stolen to complete a winning hand. Three sets of triplets or quads formed without calling on any tiles. The winning tile can be either a discard or a self-drawn tile. Each yaku is worth two han, regardless of whether the hand is closed or open.


The value of the hand becomes one han with 22 fu rounded up to 30 fuwith some other yaku available. For additional scoring, the game also features dora. The hand is one of the two exceptions to the rule requiring winning hands to have four melds and a pair, the other being thirteen orphans.

Optional yaku

A hand with four number triplets or quads in one suit with successive numbers. Japanese-language versionMarch 10, All yaku can be divided into seven basic categories, depending on the dominant feature.

In a thirteen orphans hand, the player has one of each dragon tile, one of each wind tile, a 1 and a 9 terminal from each suit, plus any tile that matches anything else in the hand.

One-shot no longer applies when another player makes an open meld. When this hand has a shanpon pattern and the win is majhong ron, then it would not be counted as such; only as the lesser toitoi with sanankou.

Japanese-language versionJuly 2, Per house rules, yakh can be added into the standard yaku listed above. Many of the Japanese sets exclusively color those tiles as green only. Although the hand can include green dragons, it does not have to.