About Plankway
What is Plankway?
Plankway is a short daily puzzle based on the classic bridges puzzle (Hashiwokakero), with a twist of its own: reefs. Every puzzle has exactly one solution and can be solved with pure logic.
A puzzle takes a few minutes. You can also play offline and install the app on your phone.
Why Plankway?
Plankway started from a simple wish: a calm, fair puzzle for every day that you can play on your phone in a few minutes, without an account, without a download and without ever having to guess. The bridges puzzle is perfect for that: you can explain the rules in a minute, and yet it stays interesting, because every puzzle asks for a different line of reasoning.
The reefs are our own addition. They block bridges, so islands that are in line do not always see each other. That gives a classic new turns without making the rules any harder.
How the puzzles are made
Every puzzle is built by our own generator and then checked: a complete search proves that there is exactly one solution, and a second solver solves the puzzle the way a person would, using logical techniques only. If that is not possible without guessing, the puzzle is thrown away.
The same solver also sets the difficulty. On Monday you get a small puzzle where counting is enough; on Sunday a big board that calls for the most advanced techniques. The strategy guide explains every technique, and the puzzle archive shows the solver’s full reasoning for every past daily.
What you get
- One new puzzle every day, the same for everyone, with a streak that grows as long as you play daily.
- Endless mode: levels that get harder as you go, with free hints to learn from.
- Leaderboards for every day and level: worldwide, per country and with your friends.
- A strategy guide with examples, and an archive with every past daily solved step by step.
- Offline play, and an app you can add to your home screen.
Free, with ads
Plankway is free. To cover the costs we show ads below the board and on the result screen — never on the board itself and never in the middle of a puzzle.
We collect as little data as possible: you do not need an account, and what we store is described exactly in the privacy policy.
Who makes it?
Plankway is designed, built and maintained by De Keyser Webdesign in Kontich, Belgium. The game, the puzzle generator, the solver and the texts are all our own work.
Questions, ideas or found a bug? Write to info@dekeyserwebdesign.com. All contact details are on the contact page.