| Country | Largest neighbour | % Correct |
|---|---|---|
| Argentina | Bolivia | Brazil | +8 others | Brazil | 95%
|
| Azerbaijan | Belarus | China | +12 others | Russia | 95%
|
| Canada | United States | Canada | 93%
|
| Mexico | United States | 91%
|
| Iraq | Jordan | Kuwait | +5 others | Saudi Arabia | 86%
|
| Armenia | Iran | Turkey | Iran | 84%
|
| Afghanistan | Bhutan | India | +7 others | China | 81%
|
| Angola | Burundi | Central African Republic | +6 others | D. R. Congo | 79%
|
| Algeria | Libya | Mali | +4 others | Algeria | 77%
|
| Bangladesh | India | 74%
|
| Austria | Czech Republic | Denmark | Netherlands | Germany | 65%
|
| Chad | Egypt | Eritrea | +3 others | Sudan | 65%
|
| Chile | Argentina | 63%
|
| Botswana | Eswatini | Lesotho | +3 others | South Africa | 63%
|
| Andorra | Belgium | Germany | +5 others | France | 60%
|
| Ireland | United Kingdom | United Kingdom | 53%
|
| Ecuador | Peru | 49%
|
| Cameroon | Nigeria | Chad | 47%
|
| Dominican Republic | Haiti | Dominican Republic | 47%
|
| Benin | Burkina Faso | Niger | 47%
|
| East Timor | Indonesia | Malaysia | Papua New Guinea | Indonesia | 44%
|
| Bulgaria | Greece | Syria | Turkey | 42%
|
| Portugal | Spain | 40%
|
| Sweden | Sweden | 40%
|
| San Marino | Slovenia | Vatican City | Italy | 37%
|
| Belize | Guatemala | Mexico | 33%
|
| Panama | Colombia | 28%
|
| Djibouti | Kenya | Somalia | Ethiopia | 28%
|
| Turkmenistan | Uzbekistan | Kazakhstan | 28%
|
| Guinea | Ivory Coast | Senegal | Mali | 28%
|
| Serbia | Romania | 28%
|
| Namibia | Angola | 26%
|
| Costa Rica | Honduras | Nicaragua | Nicaragua | 23%
|
| Hungary | Moldova | Romania | Slovakia | Ukraine | 23%
|
| Israel | Egypt | 19%
|
| Thailand | Myanmar | 19%
|
| Bosnia and Herzegovina | Kosovo | Montenegro | Serbia | 14%
|
| Cambodia | Thailand | 14%
|
| El Salvador | Honduras | 12%
|
| Croatia | Hungary | 9%
|
| Albania | North Macedonia | Greece | 7%
|
| Ghana | Liberia | Ivory Coast | 7%
|
| Brunei | Malaysia | 7%
|
| Liechtenstein | Austria | 5%
|
| Togo | Burkina Faso | 5%
|
| Equatorial Guinea | Gabon | Cameroon | 5%
|
| South Korea | North Korea | 5%
|
| Lebanon | Syria | 5%
|
| Malawi | Tanzania | 5%
|
| Guinea-Bissau | Sierra Leone | Guinea | 2%
|
| Gambia | Senegal | 2%
|