Hong Kong (Cantonese) Mahjong
The most common style played casually across Hong Kong and among Cantonese-speaking families — and the one this group usually plays. Four players, 13-tile hands (14 when it's your turn to draw), and scoring based on fan (番, "doubles") rather than a fixed point list per hand.
New here? Start with Basics, then Scoring to see how fan converts to points, then browse Special Hands for the big-value hands worth remembering.