Miguel Cuéllar
Miguel Cuéllar Gacharná was a Colombian chess master.
Cuéllar won the Colombian championship nine times: in 1941, 1946, 1953, 1955, 1956, 1957, 1959, 1961, and 1971. He played for Colombia in six Chess Olympiads: 1954, 1956, 1958, 1964, 1970, and 1972. He won individual silver medal at first board in the 16th Olympiad at Tel Aviv 1964.
In 1952, he tied for 3rd-4th in Mar del Plata. In 1953, he took 5th in Mar del Plata. In 1957, he took 7th in Mar del Plata. In 1958, he tied for 2nd-3rd with William Lombardy, behind Oscar Panno, in Bogotá.
In 1961, Cuéllar won in Caracas. In 1962, he placed 22nd at the Stockholm Interzonal, defeating both Efim Geller and Viktor Korchnoi in individual games. In 1966, he took 7th in Havana. In 1967, he tied for 19-20th in Sousse. In 1969, he tied for 1st with Boris De Greiff in Bogotá. In 1970, he took 7th in Bogotá. In 1970, he took 14th in Caracas. In 1973, he took 18th in Leningrad. In 1980, he tied for 4-5th in Bogotá.
He was awarded the International Master title in 1957.
