Keene brought Victor Korchnoi and Garry Kasparov together for their 1983 Candidates' semi-final match in London as part of the 1984 World Championship cycle; the semi-final match between Vasily Smyslov and Zoltán Ribli was also played at the same site. He organised the 1984 Russia (USSR) vs Rest of the World match in London within two weeks, enabling the event to go ahead on time after the previous plans had fallen through, described by John Nunn as "a magnificent organisational achievement at such short notice."