Deysi Estela Cori Tello (born 2 July 1993) is a Peruvian chess player, who holds the title of Woman Grandmaster (WGM), and a three-time American Continental women's champion. At junior level, she was twice world champion and six-time Pan American champion in her age girls category. Cori is the top ranked female player of Peru and has played for the national team of her country in the Women's Chess Olympiad since 2004. She competed in the FIDE World Cup in 2013 and 2015, and in the Women's World Chess Championship in 2010, 2012, 2015 and 2017. Career Deysi Cori won the gold medal at the Pan American Youth Chess Festival in various categories: girls under 10 (2003), girls under 12 (2004), girls under 14 (2007), girls under 16 (2008) and girls under 18 (2011). Also in 2008, Cori won the Pan American Girls U-20 Championship and the World School Chess Championships in the girls under 15 division. In 2004, at the age of eleven, Cori made her debut on the national women's team at the 36th Chess Olympiad. She played on the reserve board and scored 5 points out of 7 (four wins, two draws, one loss). She finished tied for first with Martha Fierro in the Women's American Continental Championship in September 2009, placing second on tiebreak. In November 2009, Cori tied for first place at the World U-20 Girls Championship, taking the silver medal on tiebreaks. Later that month, she won the girls under 16 section of the World Youth Chess Championship in Antalya, Turkey, winning nine of her first ten games, and clinched the title with a round to spare. In November 2010, Cori finished second in the girls under 18 division of the World Youth Championships in Porto Carras, Greece. Cori won the American Continental Women's Championship for the first time in June 2011. In August 2011, she won the World U-20 Girls Championship in Chennai, India and this achievement earned her the qualification for the Women's World Chess Championship 2012. In May 2013, Cori tied for third place with her brother, Jorge Cori, and Argentine grandmaster Diego Flores in the American Continental Championship, placing fifth on tiebreak, and as a result qualified for the Chess World Cup 2013. In December 2014, she finished tied for second (third on countback) in the 5th Latin American Cup scoring 7/9, a point behind the winner, Cuban grandmaster Lázaro