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

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

X 上的Douglas Griffin：“40 years ago, the World Championship match between Anatoly Karpov & Viktor Korchnoi was under way. One of my earliest # chess memories is reading the score of the 1st

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 على X: Viktor Korchnoi, pictured in play v. Anatoly Karpov in their 1981 World Championship match in Merano, Italy. (Photo credit: J. Cooke, Corbis.) #chess / X

Douglas Griffin on X: World Champion Anatoly Karpov (USSR), in play v. Slobodan Martinović (Yugoslavia) in the 3rd round of the Amsterdam OHRA tournament, 17th July 1985. The game was drawn in

Douglas Griffin on X: Some portraits from the Hoogovens tournament at Wijk aan Zee, January 1968, by the Dutch photographer E. Koch (ANEFO). Viktor Korchnoi & Mikhail Tal (USSR), Lajos Portisch (Hungary)

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: Moscow, 2nd August 1988. The 55th USSR Championship; the 7th-round meeting of Anatoly Karpov & Garry Kasparov. Their game was drawn; the two great rivals went on to

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: 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: Two photos from the epic 1985 World Championship match between Anatoly Karpov and Garry Kasparov, which took place during September-November in the Tchaikovsky Concert Hall in the Soviet