Can you solve them all?
Our 2025 Advent Puzzle Challenge may have wrapped up, but the fun doesn’t have to! All 24 puzzles from our very first edition are still available — perfect for anyone who wants to tackle them at their own pace and enjoy a daily dose of brain‑stretching math.
While the competition and prizes are no longer active, solving the puzzles now is a great way to get ready for the next edition. Have fun exploring — and see you again in December!
Learn how to win prizes
