Connect Pipe! Color Puzzle Game

Connect Pipe! Color Puzzle Game is a pairing puzzle. Pipe ends of the same colour are spread over the board, and each pair has to be joined by a pipe of its own. The rule that turns this into a puzzle is simple: pipes of different colours must never cross, so one route can easily block another.

Most of the thinking goes into the order and shape of the routes. A pair that looks trivial on its own can cut straight through the space another colour needs. The developer lists levels that rise in difficulty, a challenge option in which puzzles are solved against a time limit, and a daily puzzle that changes each day. You can drag with a finger on a touch screen or use the left mouse button on a computer, and the board sits in a wide frame.

Start at a coloured pipe end and drag to the other end of the same colour to lay a pipe between them. On a touch screen, drag with your finger; with a mouse, hold the left button down while you drag. Repeat for every colour on the board, keeping all the pipes apart, until each pair is connected.

With crossing ruled out, a pipe laid early can wall off a colour you have not reached yet. Before dragging anything, look over the whole board for pairs that have only one obvious way through and connect those first. In the timed challenge, that quick survey is time well spent.

A colour-pairing pipe puzzle in which lines may not cross. Landscape frame (1920 by 1080). Touch and mouse controls are both described, and the developer lists a timed challenge mode and a daily puzzle.

Flow Laser Quest links points of the same colour across a hundred levels, and Ball Connect has you join matching balls through a grid without letting the lines cross.