About Alexandra Kosteniuk
Alexandra Konstantinovna Kosteniuk is a Russian and Swiss chess grandmaster who was the Women's World Chess Champion from 2008 to 2010 and Women's World Rapid Chess Champion in 2021. She was European women's champion in 2004 and a two-time Russian Women's Chess Champion. Kosteniuk won the team gold medal playing for Russia at the Women's Chess Olympiads of 2010, 2012 and 2014; the Women's World Team Chess Championship of 2017; and the Women's European Team Chess Championships of 2007, 2009, 2011, 2015 and 2017 and the Women's Chess World Cup 2021. In 2022, due to sanctions imposed on Russian players after the Russian invasion of Ukraine, she switched federations, and since March 2023 she has represented Switzerland.
Biography source:
Wikipedia
