hand structure riichi
Tanki
単騎
(たんき)
Definition
Single wait - waiting to complete your pair. Only 3 tiles available (since you already have one). Common in kokushi and chiitoi.
Related Terms
Pair
対子
Two identical tiles. Also called atama or jantou. Every standard winning hand requires exactly one pair.
Shanpon
双碰
A dual pon wait - waiting on two different pairs to complete a triplet (e.g., 11223 waiting on 1 or 2). Offers 6 tiles but less flexible than ryanmen.
Kanchan
嵌張
A closed wait or inside straight wait. Waiting for the middle tile of a sequence (e.g., 35 waiting for 4). The least flexible wait pattern with only 4 tiles available.