Venn diagram
Venn Diagram: Countries of Africa
Three circles, eight African countries. Click where each one belongs: in one circle, two, all three, or none. Borders, coasts, the Equator, sizes and names, in a new diagram every time.
- Left
- 8
- Score
- 0/8
- Time
- Time left: 3:00
Three circles, three categories. One country at a time, click the region where it belongs: inside one, two or all three circles, or outside them all. Each of the eight regions holds exactly one country of the round. Right or wrong, you see the answer and the three facts behind it straight away. Keyboard: Tab moves between the regions, Enter picks one.
Finding your next challenge…
How it works, data and sources
Every round is generated for you: three circles, each a category, and eight places named one at a time. Click the region where each one belongs: inside one, two or all three circles, or outside the diagram. Each of the eight regions holds exactly one of the eight places. You score a point for each place in the right region; right or wrong, the answer shows at once, with the three facts behind it, and the place stays in its region. A challenge link replays the same round in the same language.
Each round is checked as it is made: every place asked is clearly in or clearly out of each circle, so exactly one region is right, and a place named in a category (“Borders Germany”) is never asked. Figures only count when they are clear: “more than 10 million people” means at least a quarter more (under 8 million is clearly fewer), and “more people” or “larger” than a named country means at least one and a half times as much.
Borders, landlocked countries, areas and populations follow the pinned CIA World Factbook snapshot of our ranking quizzes; island nations are the countries of our island countries quiz; continents follow our other world quizzes (based on the UN geoscheme); the EU has 27 members; capitals are those of our capitals quizzes. “Completely north of the Equator” means the whole country, by at least 1° of latitude, from the Natural Earth 1:50m country shapes.
Anything that could be argued is never asked: a transcontinental country (such as Russia, Turkey or Egypt) with a continent circle, Spain, France and Portugal with Africa, Central America and the Caribbean with North America; borders through an overseas territory or Western Sahara, the tiny Botswana–Zambia and Turkey–Azerbaijan borders, and the borders of Kosovo, Palestine and Israel; the Caspian countries with “landlocked”; countries with several or disputed capitals with a capital circle.
Letter categories read the names shown, in this language. A letter with an accent is not the same letter, and a name that has it only with an accent is never asked with it; Y counts as neither a vowel nor a consonant; a name with a hyphen or an apostrophe is never counted in words. Because names differ between languages, the same challenge link can give a different round in another language.