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 as of March 2023 she represents Switzerland.
Kosteniuk at the Women's European Team Championship, Warsaw 2013
Kosteniuk at the 35th Chess Olympiad, Bled 2002
Alexandra Kosteniuk, 2007
Women's World Chess Championship
The Women's World Chess Championship is a chess match played to determine the Women's World Chess Champion. It has been administered by FIDE since its inception in 1927, unlike the absolute World Chess Championship, which only came under FIDE's control in 1948.
Current Women's World Chess Champion Ju Wenjun from China
1981 Women's World Championship, Maia Chiburdanidze vs. Nana Alexandria
Women's World Chess Championship, Tirana 2011