Circuit Link

Every tile is a piece of wire. Turn them until the whole board is one circuit fed by the gold core, with every lamp lit and no loose ends.

How to play

Tap a tile to turn it a quarter turn. Switch Turn to ↺ if you'd rather go the other way.
Power flows out of the gold core through wires that meet end to end. Lit wire turns gold.
A circuit is done when every tile is lit and no wire points at an edge or at a tile that doesn't connect back.
Tip: corners and edges limit how a tile can sit. Start there, then lock what you're sure of with Lock mode so you don't knock it out by accident.
Journey: 12 circuits over 4 tiers: 4×4, 5×5, 6×6, then a tall 6×8. You get 3 skips.
Blitz: 3 minutes. Each solve adds 10 seconds and a skip costs 10. Boards grow every 3 solves.
Daily: one 6×6 circuit, the same for everyone on a given date. Replay it to beat your score.
Scoring: bigger boards are worth more. Finish in par taps or fewer (the fewest turns needed) for a bonus. In Journey and Daily, speed adds a bonus too. Clean solves in a row add up to +50%. A hint halves that circuit's points.
Undo takes back one move, Reset puts the board back as it started, and Hint turns one wrong tile into place and locks it.
Keyboard: arrow keys move between tiles, Enter or Space turns, T flips the turn direction, L locks, U or Backspace undoes, R resets, H hints, S skips, P pauses.
Each mode's best score stays in this browser only.

Circuit: — Time: 0s Skips: 3 Score: 0 Best: —

Pick a mode and press Start.

Tier — Par — Taps 0 Lamps —

Run complete