Rotate overlapping square blocks of numbered tiles a quarter turn to restore reading order. Eighteen solvable Twiddle studies across 3×3, 4×4 and 5×5 boards; 2×2 and 3×3 turns, animated tiles, keyboard and pointer controls, undo, route-retrace hints and local progress. Source: https://github.com/chrisboyle/sgtpuzzles/blob/d1e10eb57dd80af4999e698a9ab31f546e9a0b9d/app/src/main/jni/twiddle.c (MIT). Metadata tags: github-source, game.

quarterturn-twiddle-workshop.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.