A friend of mine came up with a game whereby he'd take two countries and mash their flags together. The player's task was to tease apart which two country's flags had been combined, and then figure out the third (actual!) country name they represented by taking letters from the start and end of the first two countries.
I tried to explain that and I think it's probably more confusing afterwards.
Here's an example:
Can you tell which country flags have been combined?
That's right! It's Canada and Greece!
And if we take the first three letters of GREece and the last four letters of caNADA and mash them together, what do you get?
GRENADA -- the name of another country!
So we can pretend like this is the flag of Grenada, which it's not. But that's the game.
I decided to whip up a quick script to try to determine all of the possibilities. In my friend's original version, the flags were artfully combined. In my version, I just wanted to check out which ones were valid. And that's what you see here!
Here are the results in flag form for you to try to guess. Don't scroll too quickly or you'll see the text translation and spoil all of the answers!
Australia + Albania = Austria
Australia + Armenia = Austria
Australia + Bulgaria = Austria
Australia + Bolivia = Austria
Australia + Colombia = Austria
Australia + Algeria = Austria
Australia + Estonia = Austria
Australia + Ethiopia = Austria
Australia + Micronesia = Austria
Australia + Georgia = Austria
Australia + Gambia = Austria
Australia + South Georgia = Austria
Australia + Croatia = Austria
Australia + Indonesia = Austria
Australia + India = Austria
Australia + Cambodia = Austria
Australia + Saint Lucia = Austria
Australia + Liberia = Austria
Australia + Lithuania = Austria
Australia + Latvia = Austria
Australia + Macedonia = Austria
Australia + Mongolia = Austria
Australia + Mauritania = Austria
Australia + Malaysia = Austria
Australia + Namibia = Austria
Australia + New Caledonia = Austria
Australia + Nigeria = Austria
Australia + French Polynesia = Austria
Australia + Romania = Austria
Australia + Serbia = Austria
Australia + Russia = Austria
Australia + Saudi Arabia = Austria
Australia + Slovenia = Austria
Australia + Slovakia = Austria
Australia + Somalia = Austria
Australia + Tunisia = Austria
Australia + Tanzania = Austria
Australia + Zambia = Austria
Austria + Somalia = Australia
Armenia + Cuba = Aruba
Argentina + Cuba = Aruba
Cameroon + Grenada = Canada
Cape Verde + Grenada = Canada
Cambodia + Grenada = Canada
Cayman Islands + Grenada = Canada
Chile + Argentina = China
Chile + Bosnia and Herzegovina = China
Chile + Botswana = China
Chile + French Guiana = China
Chile + Ghana = China
Chile + Guyana = China
Chile + Wallis and Futuna = China
Christmas Island + Argentina = China
Christmas Island + Bosnia and Herzegovina = China
Chad + Argentina = China
Chad + Bosnia and Herzegovina = China
Canada + Aruba = Cuba
Cocos (Keeling) Islands + Aruba = Cuba
Congo + Aruba = Cuba
Central African Republic + Aruba = Cuba
Congo + Aruba = Cuba
Cote D'Ivoire + Aruba = Cuba
Cook Islands + Aruba = Cuba
Chile + Aruba = Cuba
Cameroon + Aruba = Cuba
China + Aruba = Cuba
Colombia + Aruba = Cuba
Costa Rica + Aruba = Cuba
Cape Verde + Aruba = Cuba
Curacao + Aruba = Cuba
Curacao + Bonaire, Sint Eustatius and Saba = Cuba
Christmas Island + Aruba = Cuba
Cyprus + Aruba = Cuba
Czech Republic + Aruba = Cuba
Croatia + Aruba = Cuba
Cambodia + Aruba = Cuba
Comoros + Aruba = Cuba
Cayman Islands + Aruba = Cuba
Chad + Aruba = Cuba
Dominica + Central African Republic = Dominican Republic
Albania + Nigeria = Algeria
Aland Islands + Nigeria = Algeria
Fiji + Greenland = Finland
Greenland + Canada = Grenada
Greece + Canada = Grenada
Greece + Finland = Greenland
Germany + Zambia = Gambia
Gabon + Colombia = Gambia
Gabon + Zambia = Gambia
Grenada + Zambia = Gambia
Georgia + Zambia = Gambia
Guernsey + Zambia = Gambia
Ghana + Zambia = Gambia
Gibraltar + Zambia = Gambia
Greenland + Zambia = Gambia
Guinea + Zambia = Gambia
Guadeloupe + Zambia = Gambia
Greece + Zambia = Gambia
Guatemala + Zambia = Gambia
Guam + Zambia = Gambia
Guinea-Bissau + Zambia = Gambia
Guyana + Zambia = Gambia
Greenland + France = Greece
South Korea + Georgia = South Georgia
South Sudan + Georgia = South Georgia
South Africa + Georgia = South Georgia
Guernsey + Brunei Darussalam = Guam
Guernsey + Viet Nam = Guam
Guinea + Brunei Darussalam = Guam
Guinea + Viet Nam = Guam
Guadeloupe + Belgium = Guam
Guadeloupe + Brunei Darussalam = Guam
Guadeloupe + United Kingdom = Guam
Guadeloupe + Viet Nam = Guam
Guatemala + Belgium = Guam
Guatemala + Brunei Darussalam = Guam
Guatemala + United Kingdom = Guam
Guatemala + Viet Nam = Guam
Guinea-Bissau + Brunei Darussalam = Guam
Guinea-Bissau + Viet Nam = Guam
Guyana + Brunei Darussalam = Guam
Guyana + Viet Nam = Guam
India + Micronesia = Indonesia
Iraq + Iceland = Ireland
Iran + Iceland = Ireland
Indonesia + Albania = India
Indonesia + Armenia = India
Indonesia + Austria = India
Indonesia + Australia = India
Indonesia + Bulgaria = India
Indonesia + Bolivia = India
Indonesia + Colombia = India
Indonesia + Algeria = India
Indonesia + Estonia = India
Indonesia + Ethiopia = India
Indonesia + Micronesia = India
Indonesia + Georgia = India
Indonesia + Gambia = India
Indonesia + South Georgia = India
Indonesia + Croatia = India
Indonesia + Cambodia = India
Indonesia + Saint Lucia = India
Indonesia + Liberia = India
Indonesia + Lithuania = India
Indonesia + Latvia = India
Indonesia + Macedonia = India
Indonesia + Mongolia = India
Indonesia + Mauritania = India
Indonesia + Malaysia = India
Indonesia + Namibia = India
Indonesia + New Caledonia = India
Indonesia + Nigeria = India
Indonesia + French Polynesia = India
Indonesia + Romania = India
Indonesia + Serbia = India
Indonesia + Russia = India
Indonesia + Saudi Arabia = India
Indonesia + Slovenia = India
Indonesia + Slovakia = India
Indonesia + Somalia = India
Indonesia + Tunisia = India
Indonesia + Tanzania = India
Indonesia + Zambia = India
Ireland + Afghanistan = Iran
Ireland + Azerbaijan = Iran
Ireland + Bhutan = Iran
Ireland + Isle of Man = Iran
Ireland + Jordan = Iran
Ireland + Japan = Iran
Ireland + Kyrgyzstan = Iran
Ireland + Kazakhstan = Iran
Ireland + Oman = Iran
Ireland + Pakistan = Iran
Ireland + Sudan = Iran
Ireland + South Sudan = Iran
Ireland + Tajikistan = Iran
Ireland + Turkmenistan = Iran
Ireland + Taiwan = Iran
Ireland + Uzbekistan = Iran
Iraq + Afghanistan = Iran
Iraq + Azerbaijan = Iran
Iraq + Bahrain = Iran
Iraq + Benin = Iran
Iraq + Bhutan = Iran
Iraq + Cameroon = Iran
Iraq + Spain = Iran
Iraq + Gabon = Iran
Iraq + Isle of Man = Iran
Iraq + Jordan = Iran
Iraq + Japan = Iran
Iraq + Kyrgyzstan = Iran
Iraq + Kazakhstan = Iran
Iraq + Lebanon = Iran
Iraq + Liechtenstein = Iran
Iraq + Oman = Iran
Iraq + Pakistan = Iran
Iraq + Saint Pierre and Miquelon = Iran
Iraq + Pitcairn = Iran
Iraq + Reunion = Iran
Iraq + Sudan = Iran
Iraq + Sweden = Iran
Iraq + Svalbard and Jan Mayen = Iran
Iraq + South Sudan = Iran
Iraq + Tajikistan = Iran
Iraq + Turkmenistan = Iran
Iraq + Taiwan = Iran
Iraq + Uzbekistan = Iran
Iraq + Yemen = Iran
Northern Mariana Islands + South Korea = North Korea
Norfolk Island + South Korea = North Korea
Norway + South Korea = North Korea
South Georgia + North Korea = South Korea
South Sudan + North Korea = South Korea
South Africa + North Korea = South Korea
Libya + Algeria = Liberia
Libya + Nigeria = Liberia
Liberia + Kenya = Libya
Macao + New Caledonia = Macedonia
Malta + Burundi = Mali
Malta + Djibouti = Mali
Malta + Fiji = Mali
Malta + Haiti = Mali
Malta + Kiribati = Mali
Malta + Malawi = Mali
Maldives + Burundi = Mali
Maldives + Djibouti = Mali
Maldives + Fiji = Mali
Maldives + Haiti = Mali
Maldives + Kiribati = Mali
Maldives + Malawi = Mali
Malawi + Burundi = Mali
Malawi + Djibouti = Mali
Malawi + Fiji = Mali
Malawi + Haiti = Mali
Malawi + Kiribati = Mali
Malaysia + Burundi = Mali
Malaysia + Djibouti = Mali
Malaysia + Fiji = Mali
Malaysia + Haiti = Mali
Malaysia + Kiribati = Mali
Malaysia + Malawi = Mali
Micronesia + Curacao = Macao
Morocco + Curacao = Macao
Monaco + Curacao = Macao
Moldova + Curacao = Macao
Montenegro + Curacao = Macao
Madagascar + Curacao = Macao
Marshall Islands + Curacao = Macao
Macedonia + Curacao = Macao
Mali + Curacao = Macao
Myanmar + Curacao = Macao
Mongolia + Curacao = Macao
Martinique + Curacao = Macao
Mauritania + Curacao = Macao
Montserrat + Curacao = Macao
Malta + Curacao = Macao
Mauritius + Curacao = Macao
Maldives + Curacao = Macao
Malawi + Curacao = Macao
Mexico + Curacao = Macao
Malaysia + Curacao = Macao
Mozambique + Curacao = Macao
Mayotte + Curacao = Macao
Mauritius + Albania = Mauritania
Mauritius + Lithuania = Mauritania
Mauritius + Romania = Mauritania
Mauritius + Tanzania = Mauritania
Niger + Albania = Nigeria
Niger + Armenia = Nigeria
Niger + Austria = Nigeria
Niger + Australia = Nigeria
Niger + Bulgaria = Nigeria
Niger + Bolivia = Nigeria
Niger + Colombia = Nigeria
Niger + Algeria = Nigeria
Niger + Estonia = Nigeria
Niger + Ethiopia = Nigeria
Niger + Micronesia = Nigeria
Niger + Georgia = Nigeria
Niger + Gambia = Nigeria
Niger + South Georgia = Nigeria
Niger + Croatia = Nigeria
Niger + Indonesia = Nigeria
Niger + India = Nigeria
Niger + Cambodia = Nigeria
Niger + Saint Lucia = Nigeria
Niger + Liberia = Nigeria
Niger + Lithuania = Nigeria
Niger + Latvia = Nigeria
Niger + Macedonia = Nigeria
Niger + Mongolia = Nigeria
Niger + Mauritania = Nigeria
Niger + Malaysia = Nigeria
Niger + Namibia = Nigeria
Niger + New Caledonia = Nigeria
Niger + French Polynesia = Nigeria
Niger + Romania = Nigeria
Niger + Serbia = Nigeria
Niger + Russia = Nigeria
Niger + Saudi Arabia = Nigeria
Niger + Slovenia = Nigeria
Niger + Slovakia = Nigeria
Niger + Somalia = Nigeria
Niger + Tunisia = Nigeria
Niger + Tanzania = Nigeria
Niger + Zambia = Nigeria
Nicaragua + Algeria = Nigeria
Niue + Algeria = Nigeria
Niger + Martinique = Niue
Niger + Mozambique = Niue
Nigeria + Martinique = Niue
Nigeria + Mozambique = Niue
Nicaragua + Martinique = Niue
Nicaragua + Mozambique = Niue
Panama + Tajikistan = Pakistan
Panama + Uzbekistan = Pakistan
Papua New Guinea + Tajikistan = Pakistan
Papua New Guinea + Uzbekistan = Pakistan
Palestinian Territory + Tajikistan = Pakistan
Palestinian Territory + Uzbekistan = Pakistan
Palau + Tajikistan = Pakistan
Palau + Uzbekistan = Pakistan
Paraguay + Tajikistan = Pakistan
Paraguay + Uzbekistan = Pakistan
Portugal + Bouvet Island = Poland
Portugal + Switzerland = Poland
Portugal + Christmas Island = Poland
Portugal + Finland = Poland
Portugal + Greenland = Poland
Portugal + Ireland = Poland
Portugal + Iceland = Poland
Portugal + Norfolk Island = Poland
Portugal + New Zealand = Poland
Portugal + Swaziland = Poland
Portugal + Thailand = Poland
Panama + Tokelau = Palau
Papua New Guinea + Tokelau = Palau
Pakistan + Tokelau = Palau
Palestinian Territory + Guinea-Bissau = Palau
Palestinian Territory + Tokelau = Palau
Paraguay + Tokelau = Palau
Suriname + Jordan = Sudan
Slovakia + Armenia = Slovenia
South Georgia + Sudan = South Sudan
South Korea + Sudan = South Sudan
South Africa + Sudan = South Sudan
Tokelau + Congo = Togo
Tokelau + Congo = Togo
Tokelau + Trinidad and Tobago = Togo
Tonga + Congo = Togo
Tonga + Congo = Togo
Tonga + Trinidad and Tobago = Togo
Turks and Caicos Islands + Guernsey = Turkey
Turks and Caicos Islands + Jersey = Turkey
Turkmenistan + Guernsey = Turkey
Turkmenistan + Jersey = Turkey
British Indian Ocean Territory + United States Virgin Islands = British Virgin Islands
United States Minor Outlying Islands + British Virgin Islands = United States Virgin Islands
United States + British Virgin Islands = United States Virgin Islands
Zimbabwe + Gambia = Zambia
- Thanks to https://apps.timwhitlock.info/emoji/tables/iso3166 for the list of countries their emoji flags