Hong Kong Mahjong · 2 fan
Flower Set (Yat Toi Fa) in Hong Kong Mahjong: Fan, Examples and Odds
In Hong Kong mahjong, a Flower Set (一台花) is worth 2 fan: the eight flowers form two sets — the four seasons (Spring, Summer, Autumn, Winter) and the four plants (Plum, Orchid, Bamboo, Chrysanthemum). If all four of one set are in front of you, that's a Flower Set.
A full set always contains one flower of your own seat, so once it's complete the set scores only the Flower Set's 2 fan — no extra Own Flower on top.
On this page
The rules for Flower Set
- All four seasons, or all four plants
- A few of each doesn't count: you need the same set of four
- That set's own flower is included in the Flower Set and not scored again
- An own flower from the other set still scores Own Flower (1 fan)
- All eight flowers aren't two Flower Sets — that's the limit hand All Eight Flowers
How Flower Set is scored
The fan below are computed live by the same scoring code the game uses.
Won on a discard
| Dragon pung (三元牌) | 1 |
| Flower set (一台花) | 2 |
| Total | 3 fan |
|---|
Anything over 10 fan scores 10 (the limit).
Self-drawn
| Concealed hand (門前清) | 1 |
| Self-drawn (自摸) | 1 |
| All chows (平糊) | 1 |
| Own flower (正花) | 1 |
| Flower set (一台花) | 2 |
| Total | 6 fan |
|---|
Anything over 10 fan scores 10 (the limit).
Common combinations:
| Combination | Fan |
|---|---|
| Flower Set | 2 fan |
| Flower Set + an Own Flower from the other set | 3 fan |
| Flower Set + Self-drawn | 3 fan |
| Flower Set + All Pungs | 5 fan |
| All eight flowers (All Eight Flowers) | Limit |
How it relates to other hands
- Own Flower: each flower of your seat is 1 fan. When a set is complete, its own flower is folded into the Flower Set.
- No Flowers: no flower at all scores 1 fan — the opposite end.
- All Eight Flowers: all eight flowers win immediately, scored at the limit.
- Seven Rob One: with seven flowers, if someone else draws the last one you win at once.
Flower Set odds
A Flower Set straight from the deal
All four flowers of one set have to land with the same player. After the opening replacement, a seat already has a Flower Set only about 0.026% of the time; even four or more flowers of any kind happen just 0.60%.
| Flowers after the opening replacement | Chance |
|---|---|
| 0 | 45% |
| 1 | 37% |
| 2 | 14% |
| 3 | 3.3% |
| 4+ tiles | 0.60% |
Source: 400,000 deals on this site (144 tiles with flowers; each seat counted after the opening flower replacement).
How many wins have a Flower Set
Over 100,000 computer hands on this site, Flower Set appeared 637 times — 0.79% of wins, far less than Own Flower at 49%. Wins with a Flower Set averaged 3.9 fan.
Playing with a Flower Set
- Already 2 fan: one more fan reaches the minimum — any small fan (self-draw, concealed, a scoring pung, an own flower from the other set) will do, so play fast.
- One flower short of a set: you can't control flower draws, so don't slow your hand down waiting for it.
- Seven flowers: see Seven Rob One — if someone else draws the eighth, you win.
To try it, open a table of online Hong Kong mahjong — the computers play with you and count the fan for you.
Flower Set in other mahjong styles
Sichuan mahjong has no flower tiles. Taiwanese mahjong also rewards a complete set of seasons or plants, under its own tai system — see the Taiwanese mahjong tai list.
FAQ
How many fan is a Flower Set?
In Hong Kong mahjong a Flower Set is worth 2 fan: all four seasons or all four plants.
Does a Flower Set also score Own Flower?
Not for the same set — that own flower is included. An own flower from the other set still scores Own Flower (1 fan).
Are all eight flowers two Flower Sets?
No. All eight flowers are the limit hand All Eight Flowers: you win immediately, scored at the limit.
Related hands
Own Flower 1 fan
Each flower of your own seat is 1 fan: which flowers belong to East, South, West and North, scoring two of them, and how often you get one.
All Eight Flowers Limit
Collect all eight flowers and win instantly: no hand needed, who pays, how it differs from Seven Rob One, and how rare it is.
No Flowers 1 fan
No flowers at all is worth 1 fan: how it differs from Own Flower, why someone else's flower costs you, and how often it happens.
Try it at the table
Hong Kong Mahjong — Play classic Hong Kong (Cantonese) mahjong free in your browser against three computer opponents. 13-tile hands, flowers, 3-fan minimum, 10-fan limit and automatic fan scoring. No sign-up, works on phone and desktop.