Gomoku Engine by zv38/gomoku-engine
https://github.com/zv38/gomoku-engine
Pinned upstream commit: 0d8d6d960ab5d5f89a7219b8b7fe327ebbda4440
Used under the MIT license (LICENSE.txt in this directory).
Liuhuo changes: optional Board.freestyle switch disables forbidden-move filtering.
The surrounding UI, game lifecycle, worker adapter, and original Changli-inspired dialogue are site-specific.
No upstream HTML, tracking scripts, or artwork is included.