Thanks to your quiz, I learned something new today. I always spelled the Ukrainian capital as “Kiev” and it was accepted in the other “world capitals in alphabetical order” quiz (the one without hints). I got confused as to why it is now in a different spot and found out that “Kyiv” is the accepted spelling now. I did some research and found out that “Kiev” comes from the Russian word and “Kyiv” from the Ukrainian and is therefore the preferred spelling. Thank you for making me aware of that!