The Piatigorsky Cup was a triennial series of double round-robin grandmaster chess tournaments held in the United States in the 1960s. Sponsored by the Piatigorsky Foundation, only two events were held, in 1963 and 1966. The Piatigorsky Cups were the strongest U.S. chess tournaments since New York 1927.
Jacqueline Piatigorsky (née Rothschild) was married to cellist Gregor...
