Free daily geography puzzle
Borderline
A mystery country appears on the map. Guess it from its outline, its neighbours, and the clues revealed after each attempt. One fresh country every day.
How it works
Guess the country in four tries
See the outline
A mystery country is highlighted on the world map. Type any country name to make your first guess.
Get border clues
After each wrong guess you learn which countries share a border with the mystery country, narrowing it down.
Four guesses to win
Identify the country within four attempts. A fresh mystery drops at midnight GMT every day.
What makes it different
More than just a flag quiz
Real geography
Uses accurate country outlines and real border data from Natural Earth, not cartoon blobs.
Border logic
Clues are grounded in actual geography -- landlocked, island nations, and border-sharing countries all behave correctly.
Archive of past puzzles
Missed yesterday's? Every past Borderline puzzle is playable in the archive. Sign in to track your streak.
Ready to play?
Today's Borderline is live and free. No sign-up required to play.