The modernized Philidor defense

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The modernized Philidor defense

Sergio Trigo Urquijo was born in the Basque Country (Spain) on 11 august1989. He learned to play chess at age of six. As a junior he won from u-12 tou-18 Basque Country Championships. He has been a member as a player and captainof Sestao Chess Club winning the national Team Championship in 2012, 2013,2016, 2017 and 2018, as 9 times Basque Country Team Champion. He won the silvermedal in the Portugal Club Cup in 2015. He has played in the European Club Cupin 2014. He has helped many grandmasters as a second in many tournaments.


Sergio Trigo Urquijo

Thinkers Publishing
412 pages