Would be better to accept all alternatives that fit IMO. Once you know that the word starts and ends with A and is 9 letters long, there's no reason why Australia is a correct answer but Argentina isn't.
you should atleast give a decent hint for the first one because you just have to keep typing 4 letter countries, and if you forget it then you can't do the quiz at all.
There are three four letter countries in the quiz though. You only have to remember one of them to have a place to start. Don't have to start at the first one. The two-word ones are a good place to start too.
It took me a little time to deduce what the (3,5) actually meant… when it clicked then I breezed through the quiz no problem. The 4 hints, multiple words, and chain part made it very approachable from the get-go. Thanks for the great quiz!
Edit: I did that, changing Australia/Argentina to a 6-letter country which I'm pretty sure is the only A----A country there is.
I also changed the country before it - I think multiple-word countries are a bit easier, and the quiz was a bit tricky...
Thanks for the input, much appreciated.