How to play Lockstep
Build a short list of commands that makes the orange walker cross every round plate.
- Tap a numbered slot to cycle through STEP, LEFT, RIGHT, and empty.
- Press Run. The walker follows the commands from left to right, then starts again at slot 1.
- Light every round plate. A wall only blocks a STEP; the program keeps running.
The first empty slot is END. Anything after that gap does not run.
Run as many attempts as you want. Your best score is the fewest
commands that work. Par is the shortest possible solution.