Douglas Griffin on Twitter: "The grandmaster tournament at the Hotel Adolphus, Dallas, 3rd December 1957. In the 4th round, Sammy Reshevsky (USA) is in play v. Svetozar Gligorić (Yugoslavia). Friðrik Ólafsson (Iceland)
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Second Piatigorsky Cup International Grandmaster Chess Tournament Held in Santa Monica, California August, 1966 by Isaac (
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