hand structure riichi
Iishanten
一向聴
(いいしゃんてん)
Definition
One tile away from tenpai. Your hand needs one more useful tile to reach tenpai (ready to win). A key stage in hand development.
Related Terms
Tenpai
聴牌
Ready to win - your hand is one tile away from completing a winning hand. Required to declare riichi.
Shanten
向聴
The number of tiles away from tenpai. 0-shanten = tenpai, 1-shanten = iishanten, etc.
Ryanshanten
二向聴
Two tiles away from tenpai. Your hand needs two more useful tiles to reach tenpai.