Iishanten
Iishanten is the state of the hand, where one tile is needed to achieve tenpai. This is the closest state of a hand to tenpai.
Four types
Surplus
Complete
Headless
Kutsuki
External links
- 【麻雀】上がりを増やす！イーシャンテンの秘密【初心者向け講座】 (YouTube)
- Video covering iishanten shapes