Select a circuit board to begin mapping.
Connect A → A. Tap to rotate 90°.
How to Play PipeLink
Rotate the circuit tiles to connect the circular source to the square destination with the same letter. Each tap on an unlocked pipe turns it 90° clockwise and counts as one rotation. Both sides of a shared edge must have matching openings. Lit channels show where power reaches. From pack 4, connect A→A and B→B at once; a cross carries its horizontal and vertical routes separately. Pack 5 adds fixed pipes. You do not need to power every tile. Stars compare your rotation count with a target based on unlocked non-cross pipes; they do not prove a shortest solution. Reset restores the initial board and tap count. Hint demonstrates a stored solution by rotating and locking pieces in sequence, then offers a restart. Five packs contain 125 levels.
Frequently Asked Questions
What are locked tiles?
Pack 5 includes locked tiles. Their orientation is fixed, so rotate the surrounding circuit instead.
What is Dual Source?
From pack 4, connect A→A and B→B simultaneously. Cross tiles keep the two channels independent.
How do levels and stars work?
There are 125 levels in five packs. Let N be the number of unlocked tiles excluding empty and cross tiles: at most 1.5×N rotations earns three stars, at most 2×N earns two, otherwise one. This is a scoring target, not a proven optimum.
What does the Hint button do?
Hint starts an automatic demonstration that rotates and locks pieces toward a stored solution. It can reveal several steps, not just one move. When the demonstration connects the circuit, a restart prompt appears instead of the ordinary scored-clear result. Use it to study the route, then restart to practise.