Chinese Official Mahjong

Chinese Official Mahjong · 1 pt

Mixed Double Chow in Chinese Official Mahjong (MCR): Points, Examples and Rules

Mixed Double Chow example: 2-3-4 characters with 2-3-4 dots, 5-6-7 characters with 5-6-7 bamboo, plus a pair of 8 dots

In Chinese Official Mahjong, Mixed Double Chow (喜相逢) is worth 1 point: your winning hand has two chows with the same numbers in different suits, such as 2-3-4 characters and 2-3-4 dots. It's one of the most common small fan in MCR, and one step short of the 8-point Mixed Triple Chow.

234 characters with 234 dots, 567 characters with 567 bamboo: two Mixed Double Chows
On this page
  1. The rules for Mixed Double Chow
  2. When Mixed Double Chow is not counted
  3. Scoring Mixed Double Chow
  4. Mixed Double Chow and the 8-point minimum
  5. FAQ

The rules for Mixed Double Chow

When Mixed Double Chow is not counted

Scoring Mixed Double Chow

Dragon Pung2
Concealed Hand2
Mixed Double Chow1
Total5 pt

Below 8 points — not allowed to win.

One Mixed Double Chow plus Dragon Pung and Concealed Hand falls short of 8.
Concealed Hand2
All Chows2
All Simples2
Mixed Double Chow ×22
Short Straight1
Single Wait1
Total10 pt

Reaches the 8-point minimum — a legal win.

Not counted (implied by a bigger fan): No Honors

Two Mixed Double Chows, plus Short Straight, All Chows, All Simples and Concealed Hand: enough for 8.
Mixed Triple Chow8
Dragon Pung2
Concealed Hand2
Total12 pt

Reaches the 8-point minimum — a legal win.

2-3-4 in all three suits: Mixed Triple Chow, and Mixed Double Chow is not counted.

Mixed Double Chow and the 8-point minimum

At 1 point it's a top-up, and a signpost toward Mixed Triple Chow: once two suits hold the same chow, the same chow in the third suit is worth 8 points — a legal win on its own.

In 4,000 simulated hands between the site's computer players, Mixed Double Chow appeared in 9.7% of winning hands, averaging 15.9 points. Play MCR online and practise turning it into Mixed Triple Chow.

FAQ

How many points is Mixed Double Chow?

1 point in Chinese Official Mahjong; claimed chows count.

Can a hand have two Mixed Double Chows?

Yes. Two different pairings each count, but every chow is bound by the account-once rule: one chow can't be paired with two others.

Does Mixed Triple Chow also count Mixed Double Chow?

No. Mixed Triple Chow (8 points) already includes the Mixed Double Chows among its three chows.

Try it at the table

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