# Pipes

Rotate every pipe until the whole board joins into a single leak-free network fed from the power source in the centre.

- Category: Puzzle
- Features: Leaderboard, Saved progress
- Tags: puzzle, logic, grid, pipes, net, flow, connect, network, rotate, plumber, brain

## How to play

### Goal

Rotate every pipe until the whole board joins into a single leak-free network fed from the power source in the centre. Every puzzle is solvable — there is nothing to guess.

### Rules

• Each tile carries a fixed set of pipe stubs; tapping only rotates it, never reshapes it
• The board is solved when no pipe points off the board edge and every pipe meets a matching pipe on its neighbour
• Get there and the whole network lights up, powered from the centre

### How to Play

• Tap a tile to rotate it a quarter-turn clockwise
• Pipes wired back to the central source light up, so you can watch the network grow
• Loose ends and pipes that run off the edge stay dim until you turn them into place
• Sure of a tile? Long-press it, or switch on Lock and tap it, to pin it — a pinned tile will not turn until you unpin it
• Keyboard: arrows or WASD move the cursor, Enter or Space rotates, L pins, Z undoes

### Tips

• Start at the source in the centre and work outwards, locking in the tiles you are sure of
• A tile on an edge or in a corner can't point off the board — that rules out an orientation straight away
• Terminals (single-pipe ends) have only one correct heading; fix them once their neighbour is settled

### Difficulty

The board grows with difficulty: 5×5, 7×7 and 9×9. A bigger grid means a longer network to trace, never guesswork.

Play Pipes in the free Game Nest app for iPhone, iPad, and Android.