Arcadópolis
Pipe Organ
Pipe Organ: a free connect-the-pipes puzzle
Pipe Organ is a free connect-the-pipes puzzle in your browser, with nothing to download. You tap each piece to turn it until the air from the bellows, in the middle, reaches every pipe of the organ through wooden ducts. Every pipe that gets air plays its note.
When every piece is connected, the whole chord sounds, and each board you solve is the next chord of the Canon: D, A, B minor, F♯ minor, G, D, G and A. Solve eight boards and you’ve played the entire progression. There are three sizes: 4 × 4, 5 × 5 and 7 × 7.
It’s one of the 51 games in the Arcadópolis Games folder.
Free, no ads, nothing to install.
Install Pipe Organ on its own on your home screen
What it has
- New boards every time: a random network of ducts that always has a solution.
- Straight ducts, bends, T pieces, crosses and the pipes at the ends.
- Pipes that get air light up on the organ’s facade and play their note.
- The eight chords of the Canon, one per board, with the full chord at the end.
- Turns, time and best time per size; saved games and six achievements.
- Click to turn, right click to turn the other way, and full keyboard support.
How to play
- Open the Games folder and tap Pipe Organ.
- Choose the size: 4 × 4, 5 × 5 or 7 × 7.
- Tap a piece to turn it a quarter turn. Pieces that get air from the bellows light up.
- When every piece gets air, the chord sounds. Go on to the next chord of the Canon.
How to solve a board
Start with the edges and corners: a duct can’t point off the board, so a corner piece almost always has only one possible position. The pipes are the ends of the network: each one has a single opening. The network has no closed loops, so if two pieces form a circuit, one of them is wrong. And from the bellows, follow the air: whatever is already lit is right.
The Canon and its chords
The Canon in D, composed at the end of the 17th century, repeats the same series of eight chords over and over while the voices chase each other above. That progression is so famous it has been used in hundreds of songs. In this game each solved board plays one of those chords, spread across the facade’s pipes from low to high.
Common questions
Does it always have a solution?
Yes. Each board is built connected first (a loop-free network that comes out of the bellows) and then the pieces are turned at random, so there’s always a way to connect everything again.
How do I turn a piece the other way?
With a right click, or Shift + Enter on the keyboard. On a phone, each tap turns it a quarter turn to the right.
What is the Canon?
It’s a 17th-century piece for strings, in the public domain, famous for its series of eight repeating chords. The game plays those chords, one for each board you solve.
Also in Arcadópolis
OctavesSlide the tiles and merge two equal notes to climb an octave, from C1 to C8, the highest key on the piano. With sound.
MinesweeperThe classic of clearing the field without stepping on a mine, with an online race: the same board for everyone.
SudokuFour levels with a single solution, a daily sudoku, pencil notes and hints that explain why.
Arcadópolis has 66 more apps on the same desktop: games, music, a 3D museum and a 3D library.