Comparison
LinkedIn Zip vs Circuit
LinkedIn Zip asks you to draw one path through numbered checkpoints. Circuit is an independent daily on the same idea — a single ordered tour that covers the whole grid — free in any browser.
What's the same
Both draw one continuous wire that hits the numbered checkpoints in order and visits every cell exactly once, with no diagonals and no crossings. Finishing with a cell left empty means the route is wrong.
How Circuit differs
Circuit adds unlimited practice from 5×5 to 8×8, a daily archive, and boards with wall tiles you must route around. It runs in the browser with no login, next to eight other daily puzzles.
Verdict
If Zip is your warm-up, Circuit is the same one-line tour with more boards and an archive.