193 sovereign countries in 15 minutes

## Description

In _193 sovereign countries in 15 minutes_ the player must do exactly this.

When the game starts, the player must input all the countries he or she can
remember. With every accepted country, the counter is reduced by one, and the
country is added to the current list inserted in alphabetical order.

After 15 minutes the game ends and displays two lists; the one with the
countries missed as well as the one with the accepted countries.

193 sovereign countries in 15 minutes