noun
robbing a kong; winning on a tile robbed from another player's kong
A mahjong yaku: declaring a win on a tile that another player just added to a melded kong. Also called 'robbing the kong'. Compare with 加槓 (kakan).
from Chinese qiāng gàng
See also: 加槓 (かカン)
彼は対面の加槓牌で搶槓を宣言した。
He declared a robbing of the kong on the tile his opponent across the table added to a kong.
搶槓は成立しにくい役の一つだ。
Robbing a kong is one of the yaku that is hard to complete.
加槓 (kakan) is the act of adding a tile to an existing melded kong, which is the situation that allows 搶槓 (chankan) to occur.
From Chinese 搶槓 (qiāng gàng), literally 'robbing the kong'. The term is used as-is in Japanese mahjong terminology.