After-hours transit desk

Flow Lines

Pair every signal. Fill every square. Never cross.

Map: 1/147
Filled: 0%
Moves: 0
Time: 0:00

First Connection is ready. Join matching letters and cover the complete map.

ACTIVE MAP

First Connection

4 ROUTES · 5 × 5

15-SECOND ROUTING LESSON

Connect twins and leave no square behind.

Start on a letterDrag from any coloured terminal toward its matching twin.
Use every squareRoutes move up, down, left or right. They cannot overlap.
Redraw freelyTrace through a route to replace it, or use Undo for the last stroke.

Phone: drag between matching letters, or tap neighbouring squares. Keyboard: focus the map · Arrows move · Enter/Space starts or ends a route · U undoes · H hints · C clears · P pauses.

How to play Flow Lines

Connect every matching letter pair and cover the entire grid with non-overlapping routes.

Controls

Drag from a terminal to its twin, or tap neighbouring squares to extend a route.
Focus the map and use Arrow keys to move. Enter or Space starts or ends a route; arrows extend it while drawing.
U undoes, C clears the map, and P pauses. H draws one complete solution route and clears routes that conflict with it.

Rules and progress

Routes move up, down, left, or right. Connecting all pairs is not enough: every square must be filled.
Drawing into another route cuts that route back at the crossing. You must reconnect the broken pair.
Starting a stroke counts as a move. Completing a map opens the next of 147 maps, from 5×5 to 10×10.

Tips for your next try

Plan around tight corners and narrow corridors before drawing the most obvious pair.
Look for isolated empty squares before finishing the final route; use Undo or redraw to leave a way through.

Back to Flow Lines