| Borders | Country | % Correct |
|---|---|---|
| United States | Canada | 100%
|
| United States, Guatemala, Belize | Mexico | 100%
|
| Germany, Belgium | Netherlands | 100%
|
| Italy | San Marino | 100%
|
| Cameroon, Central African Republic, Libya, Niger, Nigeria, Sudan | Chad | 94%
|
| Afghanistan, Bhutan, India, Kazakhstan, North Korea, Kyrgyzstan, Laos, Mongolia, Myanmar, Nepal, Pakistan, Russia, Tajikistan, and Vietnam | China | 94%
|
| Moldova, Ukraine, Hungary, Serbia, Bulgaria | Romania | 94%
|
| Italy | Vatican City | 94%
|
| Mozambique, Zambia, Botswana, Namibia, South Africa | Zimbabwe | 94%
|
| Montenegro, Kosovo, North Macedonia, Greece | Albania | 89%
|
| Burkina Faso, Togo, Côte d'Ivoire (Ivory Coast) | Ghana | 89%
|
| Albania, Bulgaria, Turkey, North Macedonia | Greece | 89%
|
| Kazakhstan, Kyrgyzstan, Tajikistan, Afghanistan, Turkmenistan | Uzbekistan | 89%
|
| Cameroon, Equatorial Guinea, Republic of the Congo | Gabon | 78%
|
| Kyrgyzstan, China, Afghanistan, Uzbekistan | Tajikistan | 78%
|
| Angola, Botswana, Democratic Republic of the Congo, Malawi, Mozambique, Namibia, Tanzania | Zambia | 78%
|