American Mahjong Practice (NMJL Practice)

Unknown author · Games

Open in Chrome Web Store

Users

Avg rating

—

Ratings

—

Updated

Aug 11, 2026

Media

2 items

Description

American Mahjong practice based on NMJL rules. Charleston exchange, Joker tiles, C/X hands, Quints & Sextets. 100% offline, no ads. American Mahjong is a variant of mahjong played in the United States, standardized by the **National Mah Jongg League (NMJL)** since 1937. Unlike Chinese mahjong, which uses a "4 melds + 1 pair" formula, American mahjong hands are defined by an **annual rule card** that changes every April.

History

30d 90d 1y all

rating_count is the Chrome Web Store ratings count, not a written-review count.

Details & SEO

SEO signals

Listing completeness signals

Title length
Characters in the extension name.
41
Description length
Characters in the listing description.
424
Media assets
Screenshots and videos on the listing.
2
Has promo video
Whether the listing includes at least one video.
No
Languages
Declared language locales.
1
Developer website
Listing exposes a developer website URL.
No
Contact email
Listing exposes a contact email.
Yes
Keyword in name
Case-insensitive substring match in the name.
—
Keyword in description
Case-insensitive substring match in the description.
—
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
—
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
11

These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.