Train
Short AI-built drills that track five core skills, so you always know what to work on next.
Mahjong, rated
Play mahjong. Know your real level.
A daily puzzle, a five-dimension skill profile and a training plan — free, in your browser, for every rule set you play.
What Mahbao does
Train. Rate. Compete.
The site is the product: open it and you are already playing.
Rate
Every puzzle and every game feeds KoiRank — a rating that travels with you across rule sets, plus a profile of your strengths.
Compete Coming soon
Scheduled tournaments and free online tables. Play as much as you like; a subscription only covers AI game review and deep training.
How it works
Two minutes a day is enough to start.
One puzzle a day
A fresh hand every day. One decision, instant feedback.
Your five-dimension profile
Each answer sharpens your KoiRank skill profile.
A plan that adapts
Training picks the drills that move your weakest dimension first.
Rule sets
Start with Red Dragon. More tables are on the way.
Red Dragon (Hongzhong)
Playable nowFast, friendly and the most played variant in overseas Chinese communities.
Changsha
Coming soonThe Hunan classic, with its own rhythm and scoring.
MCR (Chinese Official)
Coming soonThe international competition standard used in world championships.
Riichi
Coming soonThe Japanese rule set with a worldwide competitive scene.
Be first on the table.
Leave your email and we will tell you when the app and the first tournaments open. One email, no spam.