Simplify the following text for a Grade 9 native English-speaking person.
Original: Alexandra Konstantinovna Kosteniuk ( ; born April 23 , 1984 in Perm , Russian SFSR ) is a Russian chess Grandmaster and a former Women 's World Chess Champion .
Simplified: Alexandra Kosteniuk ( born Perm , Volga , 23 April 1984 ) is a Russian chess Grandmaster and the current Women 's World Chess Champion .