Light every open square with lamps that never shine on one another. Numbered walls demand an exact count of adjacent lamps. Eighteen original-engine Akari puzzles across 5×5, 7×7 and 9×9 rooms, with glowing sightlines, notes, keyboard and pointer play, conflict feedback, undo, hints and local saves. Source: https://github.com/chrisboyle/sgtpuzzles/blob/d1e10eb57dd80af4999e698a9ab31f546e9a0b9d/app/src/main/jni/lightup.c (MIT).

lightwell-akari.skillsafe.ai

Run app here

PricingCompletely free

Security scanClean — skill and frontend scanned

Source chrisboyle/sgtpuzzles

Created2026-10-26

Updated2026-10-26

Every public app is built from a security-scanned skill and must pass a clean scan — skill and frontend — before it can be listed. Have a skill of your own? Turn it into an app — or read the step-by-step walkthrough.