Alexandr Hilário Takeda Sakai dos Santos Fier is a Brazilian chess grandmaster, having attained the title in 2007. Fier won five gold medals at the Pan American Youth Chess Festival in the under-10 division in 1996 and 1997, U12 in 2000, U14 in 2002 and U18 in 2005. He also won the South American Junior Championship in 2006, 2008 and 2009. Fier won the Brazilian Chess Championship in 2005, and won the 65 Anos da Federação tournament in São Paulo in 2006.
Fier won the Open of Sants, Hostafrancs & La Bordeta in Barcelona in 2009 and 2014. GM Fier briefly appeared in the Chess World Cup 2011, but faced elimination in the second round after defeat by his opponent Alexander Morozevich. Two months later, Fier won the 2nd Latin American Cup in Montevideo edging out Diego Flores in a tiebreaker. He competed in the 2013 Chess World Cup, but was eliminated after his loss to Baskaran Adhiban.
He typically favors the Sicilian opening for both white and black pieces, utilizing this method about 40-45 percent of the time.