n. 五子棋

Gobang \Go*bang"\, n. [Written also {goban}.] [Jap. goban
checkerboard, fr. Chino-Jap. go checker + ban board.]
A Japanese game, played on a checkerboard, in which the
object of the game is to be the first in placing five pieces,
or men, in a row in any direction.
[Webster 1913 Suppl.]