WMO

Honor tiles are the winds and dragons taken together. There are four Wind Tiles — East, South, West, North — and three Dragon Tiles — White, Red and Green — with four of each (3.4.15); Terminal tiles are the ones and nines of a suit, together with the honor tiles (3.4.16); Flower tiles are used: ...

Four players per table, each table playing as an independent group (3.5.2); Seating is the placement of players around the table by table number, determined by drawing lots or arranged in advance under the tournament regulations (3.4.7); Lots are drawn publicly, fairly and impartially; where a te...

Every claim on a discard must be verbalized (3.6.1); Say "Chi" to chow, "Pung" to pung, "Kong" (or "Gang") to kong, "Hu" to declare mahjong, and "Hua" when taking a flower replacement (3.6.1); Players must not call out the names of tiles when discarding, and are forbidden to discuss, gossip, or c...

Three conditions must all hold to declare "Hu": the hand is one of the permissible structures; its fan total at least 8 points; and the winning tile was obtained by a permitted method (3.9.1); The eight-point minimum is the defining constraint of MCR — a structurally complete hand that scores les...

MCR and riichi are the two major competitive mahjong rule sets and are scored on entirely different principles: MCR counts fan against an eight-point threshold (3.8, 3.9.1), while riichi counts han and minipoints and has no equivalent minimum; MCR uses flower tiles and flower replacement (3.4.20)...

Every claim on a discard must be verbalized (3.6.1); Say "Chi" to chow, "Pung" to pung, "Kong" (or "Gang") to kong, "Hu" to declare mahjong, and "Hua" when taking a flower replacement (3.6.1); Players must not call out the names of tiles when discarding, and are forbidden to discuss, gossip, or c...

Events may be Individual, Team or Group Ranking (3.5.3); Three competition methods exist — Elimination, Round Robin and Mixed — and a tournament may use one and only one of them (3.5.4)

Winning (hu) is reached when, after taking a discard or drawing, the fourteen tiles form a complete structure as prescribed and the hand scores eight or more points (3.4.22); Self-drawn — winning on a fresh tile taken from the wall (3.4.23); A hand that reaches neither a declaration nor a winner ...

There are 81 scoring elements (fan) in total (3.8); They fall into nine series: Honor Tiles; Number Tiles; Pungs; Seven Pairs; Tile Types Composition (flowers excepted); All Involved; Broken; Way of Making Mahjong; and Special (3.8); Point values reflect degree of difficulty, across twelve grades...

Chow — three sequentially-numbered tiles of the same suit (3.4.12); Pung — three identical tiles, concealed or melded (3.4.13); Kong — an exposure of four identical tiles; also the meld itself (3.4.19)