Waits & Tenpai
Edge wait
Also called: Penchan, 辺張, 邊張
Waiting on the 3 to complete 1-2-? or the 7 to complete ?-8-9.
An edge wait (penchan in Japanese, 邊張 in MCR) is when you're waiting on the open end of a 1-2 or 8-9 partial chow. You can only complete with a 3 (filling 1-2-3) or a 7 (filling 7-8-9) — never both sides. This is a one-sided wait, so it scores a bonus in Riichi (2 fu) and MCR (edge wait = 1 fan).
Related terms