Plays in your browser, on your phone or computer. Nothing to install.
Description
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 a quarter turn; press and hold to lock it so it doesn't turn by mistake. Water flows from the tap in the middle through openings that fit together. You win when every opening meets its neighbour's, none faces the edge and the water reaches every square, with no closed loops.
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.
Information
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