Every square holds a piece of pipe: an end, a straight, a corner or a T. They have been turned at random — your job is to turn them back.
When it is solved, every pipe meets a pipe from the next square, nothing points off the board, and all the pieces join into a single network with no loops. Water poured in at the centre then reaches every square.
Start at the edges and corners: an edge piece can’t point outwards, so a corner square often has just one way to sit.
Turn the pipe pieces so they all join into one network, with no leaks, no loops and nothing pointing off the board.
The full guide, with a worked example and common mistakes: How to play Pipe Link.
No — the water from the centre just shows which pieces are joined so far.
The finished network is a tree: every piece is reached in exactly one way. A loop means some pieces are turned wrongly.
Yes — every puzzle here is checked to have exactly one solution.
Open the Pipe Link Solver, enter the pieces and press Solve.