Fernando Visier Segovia vs Juan Betancort Curbelo
ESP-ch Reus ESP 1968.??.??
Sicilian Defense: Najdorf Variation 1-0

Bent Larsen vs Juan Betancort Curbelo
Lanzarote Lanzarote round 5 1976.??.??
English Opening: Symmetrical Variation, Botvinnik System 1-0