Circuit

Rotate the tiles to wire every node to the power source so the whole grid lights up. Solve as many as you can before time runs out.

How to play

Each tile carries a short length of wire reaching out in one to four directions. One tile is the power source, marked by a glowing amber node.

Tap a tile to rotate it 90° clockwise. Your job is to turn the tiles until the wiring forms one connected network: every wire end must meet a matching wire on the neighbouring tile, with no loose end pointing into a wall or off the edge of the board.

As you connect tiles back to the source, they light up blue so you can see the power spreading. The puzzle is solved the instant the entire grid is lit and no wire is left dangling — then a fresh, usually larger grid appears at once.

Grids grow from 4×4 toward 6×6 as your score climbs. Your score is the number of grids you complete before the clock reaches zero.

Tips & strategy

Work from the borders inward. A tile in a corner has only two sides facing the board, so any wires it carries are almost fully determined; an edge tile can never point outward, which often fixes its orientation in one move. Locking the frame first gives you a scaffold of certain connections to build on.

Let the source spread guide you. Tiles light up the moment they join the powered network, so treat the glow as a live map: extend from a lit tile to its dark neighbours rather than guessing in empty corners. A dead-end tile (a single stub) is a strong clue — it must point at exactly one neighbour, and usually only one direction keeps it connected without stranding the cells beyond it.

Watch for wires that have nowhere to go. If rotating a tile always leaves one end jabbing into a wall or into a neighbour that cannot reciprocate, you have the wrong tile selected — back up and fix the neighbour first. Because every puzzle is built from a single connected tree, there are no loops to chase; once the lit region reaches every tile with no stray ends, you are done, so keep pushing the frontier of light outward until the whole board glows.