We give you the tripoint, you name the countries bordering in that tripoint.
A tripoint is a point where 3 places meet, in this case, countries
You only have to guess one of the 3 countries in that tripoint.
Some tripoints have 4 answers, this is because it is the same named area for two tripoints. Two of those four are in both tripoints while the other two (in brackets) are only in one