American Mahjong practice based on NMJL rules. Charleston exchange, Joker tiles, C/X hands, Quints & Sextets. 100% offline, no ads.
Users
5
0 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#253K
#223K among extensions
Version
1.0.0
updated 11 Aug 2026
Users
monthly, 3 months
Latest, 12 Nov 2026:5 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 months
Latest, 12 Nov 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About American Mahjong Practice (NMJL Practice)
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.