The avatars, the host mascot, the category badges, the interface icons and the illustrated puzzle cards were all made for this project with OpenAI's image model. They share one house style: flat cartoon stickers with thick navy outlines. None of it is stock art, and nothing is traced from the book pages.

A few interface glyphs, like the dropdown chevron and the speaker button, are drawn in code from the geometry of the open-source Lucide icon set. That keeps their strokes crisp at any size.

The launch library comes from The Ezz Show's "Brain Teasers & Puzzles Volume 1", with answers taken from the official answer key, alongside original puzzles written in the same spirit. Puzzle visuals are re-created for the screen rather than scanned out of the book.

The text puzzles are not images at all. Typographic tricks, scrambles and say-it-out-loud cards get drawn live from data, which is why they stay sharp no matter how big your screen is.

• Nunito by Vernon Adams, Cyreal and Jacques Le Bailly, licensed under the SIL Open Font License.
• Sound effects are synthesised in your browser with the Web Audio API. There are no audio files to download, and you can mute them from the top bar.

Next.js and React on the front end, NestJS and Socket.IO for the realtime game server, PostgreSQL for storage, Tailwind CSS for styling. All open source.

The room-and-round format owes a lot to Gartic.io, which gets the feel of a quick game with friends exactly right. The artwork, the code and the puzzle content here are ours.