| CDI | Bordered By | Country | % Correct |
|---|---|---|---|
| 15 | China, Iran, Pakistan, Tajikistan, Turkmenistan, Uzbekistan | Afghanistan | 83%
|
| 13 | Iraq, Israel, Jordan, Lebanon, Turkey | Syria | 83%
|
| 17 | Brazil, Colombia, Guyana | Venezuela | 83%
|
| 29 | China, India | Nepal | 67%
|
| 8 | China, Russia, South Korea | North Korea | 67%
|
| 10 | Djibouti, Ethiopia, Kenya | Somalia | 67%
|
| 11 | Central African Republic, Democratic Republic of the Congo, Ethiopia, Kenya, Sudan, Uganda | South Sudan | 67%
|
| 14 | Oman, Saudi Arabia | Yemen | 67%
|
| 22 | Botswana, Mozambique, South Africa, Zambia | Zimbabwe | 67%
|
| 20 | Democratic Republic of the Congo, Rwanda, Tanzania | Burundi | 50%
|
| 21 | Laos, Thailand, Vietnam | Cambodia | 50%
|
| 28 | Belize, El Salvador, Honduras, Mexico | Guatemala | 50%
|
| 16 | Guinea, Senegal | Guinea-Bissau | 50%
|
| 20 | Dominican Republic | Haiti | 50%
|
| 73 | United Kingdom | Ireland | 50%
|
| 32 | Benin, Burkina Faso, Ghana | Togo | 50%
|
| 18 | Democratic Republic of the Congo, Namibia, Republic of the Congo, Zambia | Angola | 33%
|
| 31 | Colombia, Peru | Ecuador | 33%
|
| 26 | Senegal | Gambia | 33%
|
| 47 | Austria, France, San Marino, Slovenia, Switzerland, Vatican City | Italy | 33%
|
| 39 | South Africa | Lesotho | 33%
|
| 27 | Algeria, Mali, Morocco, Senegal | Mauritania | 33%
|
| 26 | Costa Rica, Honduras | Nicaragua | 33%
|
| 28 | Indonesia | Papua New Guinea | 33%
|
| 30 | Argentina, Bolivia, Brazil | Paraguay | 33%
|
| 26 | India, Myanmar | Bangladesh | 17%
|
| 35 | Indonesia | East Timor | 17%
|
| 36 | Albania, Macedonia, Montenegro, Serbia | Kosovo | 17%
|
| 39 | Croatia, Montenegro, Serbia | Bosnia and Herzegovina | 0%
|