hand structure general

Sequence

順子

(しゅんつ)

Definition

Three consecutive numbered tiles of the same suit (e.g., 456 of bamboo). Also called shuntsu or run.

面子

A set of tiles forming a sequence (shuntsu) or triplet (koutsu). A complete hand requires four melds plus one pair.

チー

Calling the previous player's discard to complete a sequence. Can only be called from the player to your left (kamisha). Opens your hand.