How well do you really know the map of the world? The Bordering Countries Quiz highlights a single country on a clean world map and asks you to name every nation that shares its land border. France has eight neighbours, Germany nine, Brazil ten — can you name them all before you run out of guesses?

It is a deceptively tough test of geography. Some countries are easy (Portugal borders only Spain), others are a memory marathon (Russia and China each touch fourteen). You can play by tapping the neighbours out of a list, by typing each country name, or in a fast Speed Run where naming any one neighbour moves you on.

New every day: a Daily Challenge of six countries that is identical for everyone, with a shareable results grid so you can pit your border knowledge against friends. Or jump into unlimited practice whenever you like.

How to play

Daily Challenge — six target countries, the same for every player today. Name all the neighbours of each, then share your 🟩🟥 grid.
Classic — name every neighbour of twelve target countries. Choose Easy (tap the bordering countries from a list), Medium (type them, with first-letter hints) or Hard (type them with no hints at all).
Speed Run — a country appears; type any one of its neighbours to score and jump straight to the next, building a streak multiplier against the clock.
Learn mode — tap any country on the map to light up its neighbours and read them off, flags and all.

Every mode tracks your streak, score and accuracy, and a local leaderboard keeps your best runs on your own device.

Tips for learning country borders

Work region by region — most countries only border others on their own continent, so once a country lights up, narrow your guesses to its neighbourhood first.
Learn the chokepoints: countries that connect regions (Turkey, Egypt, Russia, Kazakhstan) border an unusually high number of neighbours and show up again and again.
Remember the one-border countries — Canada–USA, Portugal–Spain, Denmark–Germany, South Korea–North Korea, Haiti–Dominican Republic — they’re free points once you know them.
Watch for landlocked clusters in Central Asia, the Sahel and the Balkans, where small countries border many others at once.

Which countries have the most borders?

At the top, China and Russia each border 14 countries — the most of any nation. Brazil leads the Americas with 10, touching every South American country except Chile and Ecuador. In Europe, Germany (9), France, Austria and Serbia (around 8 each) are the most connected. At the other extreme, dozens of island nations have no land borders at all, and countries like Canada, Portugal and South Korea border just one. To keep the daily challenge fair, the giants with more than six neighbours are held out of the daily pool.

How the daily challenge works

The daily set is generated from the calendar date using a seeded shuffle, so every player in the world sees the same six countries on the same day — with no account and no server tracking you. When you finish, your result is encoded as a grid of green (fully solved) and red (missed a neighbour) squares, ready to copy or share. Come back tomorrow for a fresh set and keep your streak alive.

Data & method

Land-border relationships and country facts are drawn from the open mledoze/countries dataset (ODbL), and the world map is built from Natural Earth (public domain) via the world-atlas 1:50m dataset. The quiz covers the 156 independent countries that have at least one land border and a recognisable map outline; answer matching accepts common names, ISO codes and alternative spellings. All data is bundled into the app, so it loads instantly and works offline.

Frequently asked questions

What is the Bordering Countries Quiz?

It is a free geography game built around one question: a country is highlighted on the world map, and you have to name every nation that shares a land border with it. You can tap the neighbours from a list, type them, or race the clock — across several game modes.

How does the daily challenge work?

Every day there is a fixed set of six target countries that is the same for every player worldwide. It is generated from the calendar date itself (a seeded shuffle, no server needed), and when you finish you get a shareable grid of green and red squares — one per country — so you can compare your run with friends.

Which country has the most land borders?

China and Russia are tied at the top, each bordering 14 countries (some datasets count China at 14–16 depending on how disputed boundaries are treated). Brazil leads the Americas with 10 land borders, and Germany and France each touch around 8–9 neighbours. To keep the daily fair, those high-border giants are kept out of the daily pool.

Which countries have no land borders?

Island nations such as Japan, Australia, New Zealand, Iceland, Madagascar and the Philippines have no land borders at all, and a handful of countries border only one other nation (Canada borders only the USA; Portugal only Spain). Border-free island states don’t appear as targets in the quiz, since there would be nothing to name.

Does it work on mobile?

Yes. The quiz is mobile-first and runs in any modern browser on phone, tablet or desktop — the map, the answer chips and the typed input all scale to a phone screen, with finger-sized tap targets. No app or sign-up required, and your scores are saved on your own device.

Where does the border data come from?

Land-border relationships and country facts come from the open mledoze/countries dataset (ODbL licence), and the world map is built from Natural Earth (public domain) via the world-atlas dataset. All of it is bundled into the app, so it loads instantly and works offline.