Free to try
A free mini book and a free mini app for everyone — no sign-up, no card, no catch. Join the free Club and we’ll thank you with a bigger book and app too.
Start free — no sign-up
The mini book and its app are free to everyone. The bigger Thank You book and app are our gift when you join the free Club.
Free mini book & app
Free for everyone
A handful of full-colour puzzles across all four sizes, with the solving guide — a perfect first taste of Trigon. No sign-up needed.
Thank You book & app
Free when you join
A bigger book — more puzzles, every answer at the back — and its matching app. Our thank-you for joining the free Trigon Club. Members only, but it costs nothing.
Tip: the app adds to your home screen like any app — open it and choose “Add to Home Screen”.
Join the Trigon Club — it's free
One free sign-up puts you on the leaderboard, saves your streak across all your devices, enters you for members' competitions, and gets you 50% off the full app when it arrives.
Play a free puzzle here every day. When you're ready for more, the Club is where it all is.
Join the Trigon ClubWhat you'll need
A printer
The books are PDFs, made to be printed. Print one page or the whole thing, as many times as you like. (Or skip the printer and use the apps.)
A pencil
And a rubber. Trigons are meant to be worked in pencil — you'll change your mind, and that's part of it.
Ten minutes
A 333 puzzle is a coffee break. A 666 can take an evening. Start small and work up.
Not sure yet?
Play one online first. No sign-up, no printer, nothing to install.
Play today's puzzle See how it works