Douglas Griffin on X: Karpov-Korchnoi, 18th match-game, FIDE Candidates' final, Moscow 1974. (Source: TASS, photographer: V. Savostianov.) #chess / X

Douglas Griffin on X: Moscow, 22nd September 1969. Ex-World Champion Tigran Petrosian is pictured in play v. Evgeny Vasiukov in the 11th round of the 37th USSR Championship. Petrosian won the title

Douglas Griffin on X: The 'Tournament of Peace', Rovinj/Zagreb, Yugoslavia, 1970. Bobby Fischer is seen in play in what would prove to be a theoretically important game v. Dragoljub Minić in the

Douglas Griffin on X: At the FIDE Interzonal in Moscow, 1982. Round 11, 21st September. Guillermo García Gonzáles faces ex-World Champion Mikhail Tal. The Cuban grandmaster started this event with 6½/8. (Photo

The Karpov-Korchnoi Candidates' Final (Moscow, 1974), with annotations by Botvinnik.

Douglas Griffin on X: 40 years ago - World Champion Anatoly Karpov (USSR), pictured at the IBM International in Amsterdam, May 1981. (📷H. van Dijk (#1); M. Antonisse (#2, 3, 4) /

Douglas Griffin on X: Four photos of the 19-year-old Garry Kasparov, pictured in play at the FIDE Interzonal tournament in Moscow, September 1982. Kasparov won this event with 10/13 (+7,-0,=6), thereby qualifying

Douglas Griffin on X: Wijk aan Zee, 1983. The 8th-round clash (played 23rd January) between Viktor Korchnoi & Ulf Andersson. The Swedish grandmaster won this encounter in 59 moves, on the way

Douglas Griffin on X: The 1981 World Championship match between champion Anatoly Karpov (USSR) & challenger Viktor Korchnoi (Switzerland), Merano, October-November 1981. (📷J. Cooke, V. Rastelli / Corbis.) #chess / X

Douglas Griffin on X: Hidden away in the Dutch regional photo archives: some shots of the young @vishy64theking in action at Wijk aan Zee, v. Vitaly Tseshkovsky & Viktor Korchnoi, in 1989

Douglas Griffin on X: World Champion Anatoly Karpov, in play v. Ulf Andersson, Tilburg 1977. Balashov in the background. (Source: #chess / X

Douglas Griffin on X: The @FIDE_chess Candidates quarter-final between Viktor Korchnoi (Switzerland) & Tigran Petrosian (USSR), Velden am Wörthersee (Austria), March 1980. #1, #2 The match in progress; #3 Petrosian & wife

Douglas Griffin on X: Anatoly Karpov & Mikhail Tal, pictured in play during the 39th USSR Championship, Leningrad, September-October 1971. (Photo: N. Naumenkov / TASS.) #chess / X