Julio Argentino Kaplan Pera is a Puerto Rican chess player, former world junior chess champion as well as software developer and founder of Heuristic Software.

The 20th Chess Olympiad, organized by FIDE and comprising an open team tournament, as well as several other events designed to promote the game of chess, took place between September 18 and October 13, 1972, in Skopje, Yugoslavia.