Pipes

A grid full of scrambled pipe pieces and a tap in the middle. Tap a piece to turn it a quarter turn and join the pipes until the water reaches every square, with no loose openings and no closed loops. You can watch the water flow: pipes connected to the tap fill with blue.

No guessing. Every board has exactly one solution and you reach it by reasoning. If you get stuck, the hint turns the next piece and tells you why.

Three modes. Classic with four levels, from 5 × 5 up to a 10 × 10 Expert. A Daily challenge with the same board for everyone. And Zen, with no timer.

Genuinely calm. No ads, no purchases and no accounts. Your games, stats and achievements stay on your device.

For everyone. Lock pieces so they don't turn by mistake, loops and closed groups shown in red, dark, light and high-contrast themes, left-handed controls, keyboard play and a reduce-motion option. In Spanish, Catalan and English.

How to play

Tap a piece to turn it; press and hold to lock it. Every opening must meet its neighbour's, none can face the edge, the water must reach every square and the pipes can never close into a loop.

Tips to get started

• Start with the corners and edges: pieces there have few ways to turn.
• A straight piece next to the edge can only run along it.
• Two neighbouring ends never face each other: they would be closed off, with no water.