In the 1970s and 1980s, Francisco Javier Sanz Alonso was one of the top Spanish chess players.
Francisco Javier Sanz Alonso has participated in international chess tournaments many times and in 1978 in Benidorm won tournament Abierto Internacional de Benidorm.
Francisco Javier Sanz Alonso two times won Spanish Team Chess Championships (1974, 1981).
Francisco Javier Sanz Alonso played for Spain in the Chess Olympiads:[3] Francisco Javier Sanz Alonso played for Spain in the European Team Chess Championship preliminaries:[4] Francisco Javier Sanz Alonso played for Spain in the Clare Benedict Chess Cups:[5] In 1978, he was awarded the FIDE International Master (IM) title.
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