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Ruylopez llibre. en Title page of the book Libro de la invencion liberal arte del juego del axedrez by Ruy Lpez de Segura ca Portada del llibre Libro de la invencion liberal arte del juego del axedrez de Ruy Lpez de Segura kb nl Author collection PDart Chess in Spain Chess books thcentury chess Ruy Lpez de Segura