Man pages matching name gomoku in section 6:

gomoku.6.en	debian 10 / bsdgames
Gomoku.6.en	debian 10 / gomoku.app
gomoku.6.en	debian 11 / bsdgames
Gomoku.6.en	debian 11 / gomoku.app
gomoku.6.en	debian 12 / bsdgames
Gomoku.6.en	debian 12 / gomoku.app