It might be good to change the colour of the islands in the box, where all of them are visible, to grey, so as not to give the impression that those are also municipalities and still need to be named.
U can actually hide a hint until the answer is guessed so that the name of the island corvo would only appear after the municipality corvo was guessed.
U can actually hide a hint until the answer is guessed so that the name of the island corvo would only appear after the municipality corvo was guessed.