The second-annual CS50x Puzzle Day in the UK is next week! Join us at the University of Oxford on Friday, November 6, 2026, 5pm–10pm.
No prior CS or programming experience needed, just logic and smarts! No team? No problem! We will help teams form at the event. Tickets on sale
From the team that brought you CS50 at Harvard, this is the Fifty Foundation. Theatrical courses in computer science and math. For free, for all. 🎭

