WHAT NEW IN X11.07 SAT

AI collections from X · 25 collections · 72,532 posts

opus-5.5VIDEO

Opus 5.5 makes a stealth Minesweeper variant in plain JavaScript

Claude Opus 5.5 built Case the Joint, a stealth take on Minesweeper, with no engine or libraries, where blueprint numbers reveal guard positions and everyone gets the same building each day to compare scores.

Jeff Pelton
@comsterArchived 2026.10.07Originally posted 2026.10.06
Jeff Pelton @comsterOriginally posted 2026.10.06
Open original on X

Minesweeper, but the mines are guards 🕵️ Built by Claude Opus 5.5 in plain JavaScript. No game engine, no libraries, no artist. Case the Joint: you get the building's blueprints, not the guard roster. Every tile you step on tells you how many guards are posted around it. Knock a guard out and the numbers drop. Creaky boards make noise, and at 16 the alarm goes off. A patrol walks the hallway with a flashlight: wait for it to pass, or take the guard down from behind. Grab the loot, get out a window. The same building for everyone, every day, and a solver checks each one so it never needs a guess. Post your score 🖼️ Link to play below 👇

x.com/comster/status/2107460364753342558Archived 2026.10.07 10:12