Australian International Master (1951), International Grandmaster in Correspondence Chess (1953), the first World Champion in Correspondence Chess 1953-58. A chess writer.
Four times he was Champion of Australia -1935, 1937, 1949 and 1951, twice Champion of New Zealand 1924-25 and 1936.
Purdy was the founder and the editor (1929-67) of the magazine Australian Chess Review, later renamed Chess World, in 1946.
The author of:Among the Mates, How Euwe Won, The Return of Alekhine and How Fischer Won.
Australian International Master (1951), International Grandmaster in Correspondence Chess (1953), the first World Champion in Correspondence Chess 1953-58. A chess writer.