Solo Mode

Practice Arena

Sharpen your skills with SDG-aligned challenges. No team required—just you and the puzzles.

Preview Mode

Log in to submit flags and track your progress. Your solves will be saved!

No Practice Challenges Yet

Check back soon—our team is crafting new challenges!

Learn at Your Pace

No time limits. Take as long as you need to solve each challenge.

Track Progress

Your solved challenges are saved. Come back anytime to continue.

SDG Aligned

Each challenge connects to a UN Sustainable Development Goal.