Follow inequality signs to fill every row and column with each number exactly once. Fifteen uniquely solvable 4×4, 5×5 and 6×6 Futoshiki studies, pencil notes, live conflicts, keyboard and pointer controls, undo, hints and local progress. Source: https://github.com/chrisboyle/sgtpuzzles/blob/d1e10eb57dd80af4999e698a9ab31f546e9a0b9d/app/src/main/jni/unequal.c (MIT). Source metadata tags: github-source, game.

order-and-ink-futoshiki.skillsafe.ai

Run app here

PricingCompletely free

Security scanClean — skill and frontend scanned

Source chrisboyle/sgtpuzzles

Created2026-10-27

Updated2026-10-27

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.