WUZIQI — Gomoku is a Gomoku (five-in-a-row) app for iPhone and iPad,
built by independent developer Junze Lu since 2025.
It supports English, Simplified Chinese and Traditional Chinese.
The product thesis is "beauty is reason enough": most of the year of work went not into the AI,
but into the board material, the type ladder, how the light-mode glass reflects, and the haptic
when a stone lands — craft details that don't show up in a feature list but are felt immediately.
The app ships with: a clean board with 8 themes (wood, jade, marble, bamboo with real material photography),
8 piece styles (shell, jade, glass, gold & silver, and more), local two-player hot seat,
three AI difficulty tiers (Normal / Intermediate / Advanced) running an embedded local engine
with sub-300ms response times, optional Renju forbidden-move rules, three board sizes (13×13 / 15×15 / 19×19),
full light and dark modes tuned independently, haptic feedback, optional iCloud sync, and 30 Game Center
achievements for players who want them. Core gameplay runs offline without an account;
ads (when you haven't purchased "Remove Ads"), iCloud sync, Game Center and in-app purchases go online
only when those specific features are active. Free, with a one-time "Remove Ads" in-app purchase.