Pipe Turn is a plumbing logic puzzle. Every square holds a piece of pipe — a bend, a straight, a junction or an end — and each tap turns it a quarter. Connect them all to the water source so every pipe fills and no end is left open. Thirty grids grow from 4×4 to 10×9; edges and corners give the first clues, and you can lock pieces you are sure about.
How to play Pipe Turn
Goal: Fill every pipe with water from the source, leaving no open ends.
Keyboard & mouse
- Click a pipe to turn it a quarter clockwise
- Right-click a pipe to lock or unlock it
- Arrow keys to move, Enter or Space to turn, L to lock
- P or Escape to pause
Phone & tablet
- Tap a pipe to turn it
- Long-press, or switch Tap mode to Lock, to lock a pipe in place
Rules
- Water flows from the green source through pipes whose ends meet.
- Every pipe on the board must be filled, and no pipe end may point at a wall or a gap.
- Open ends that leak glow orange.
- Locked pipes cannot be turned — lock the ones you are sure about.
- Par is the turns needed for the intended layout. Finish within 1.3 × par for 3 stars.
Tips and strategy
- Start at the edges: a pipe there can never point outwards.
- Corner bends have only one possible direction.
- End pieces next to each other can never point at each other unless the board is just two cells.
