Alexandra Kosteniuk country of citizenship Switzerland
Personal life
Born in Perm, Kosteniuk moved to Moscow in 1985. She has a younger sister named Oksana, who is a Woman FIDE Master-level chess player.
Kosteniuk has dual Swiss-Russian citizenship. She married Swiss-born businessman Diego Garces born in 1959, who is of Colombian descent, at eighteen years old. On 22 April 2007 she gave birth to a daughter, Francesca Maria. Francesca was born 2½ months premature but  made a full recovery after an 8-week stay in the hospital. In 2015, Kosteniuk married Russian Grandmaster Pavel Tregubov.Notable games
The World vs Alexandra Kosteniuk, 2004, Sicilian Defense: Najdorf Variation. English Attack (B90), 0–1
Alexandra Kosteniuk vs Alexander Onischuk, Corus, Group B 2005, Spanish Game: Classical Variation (C65), 1–0
Anna Ushenina vs Alexandra Kosteniuk, WWCh. 2008, Nimzo-Indian Defense: Classical, Noa Variation (E34), 0–1
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