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Radius is a daily city guessing game about knowledge and confidence. Put the city inside your circle. Smaller circle, more points.
| Radius | Points for a hit |
|---|---|
| 1,500 km | 1 |
| 500 km | 3 |
| 100 km | 6 |
| 25 km | 10 |
Keyboard: Tab to the map, use arrow keys to pan and + / − to zoom. Press Enter or Space to place your circle, or Home to reset the view. Use Tab and arrow keys to choose a radius.
Full rules and strategy guide →
Radius combines geography trivia with judging your own confidence. A broad circle can rescue an uncertain answer; a precise circle rewards a familiar city. Cities have area, so the game scores against verified boundaries instead of a single centre point. The map shows coastlines and country borders, with city labels hidden until the reveal.
A new five-city puzzle opens at midnight Eastern time. Everyone gets the same cities in the same order, wherever they live. Your first completed daily is saved in this browser.
Yes. Any overlap between your circle and the outlined city area earns the full points for your chosen radius, including touching the boundary. You do not need to hit the city centre. The reveal names the boundary used; some cities use a municipality or a defined group of city districts.
Yes. Yesterday’s puzzle is free in the archive; Premium unlocks older days. Every puzzle in the archive belongs to a specific date. Archive results stay separate from today’s daily score.
Yes. Share your result to send your score and five outcome circles without revealing the cities. The link keeps the puzzle’s date so your friends get the same five cities.
Today’s and yesterday’s Radius puzzles are free in your browser, with no account required. Older daily puzzles require Premium. Tap to place a circle, drag to move it, and pinch to zoom. On a computer, scroll or use a trackpad to zoom.