Douglas Griffin on X: Ex-World Champion Mikhail Tal (b. Riga, 1936; d. Moscow, 1992), pictured at Wijk aan Zee, January 1988. (📷: #chess / X

Douglas Griffin on X: Legends of the chessboard: Mikhail Tal v. @Kasparov63, in play at (I think) the Moscow TV tournament, 1987. (Photo credit: I. Utkin.) #chess / X

Douglas Griffin on X: Pictured at Wijk aan Zee, January 1982 - ex-World Champion Mikhail Tal (1936-1992). (📷: #chess / X

Douglas Griffin على X: Mikhail Botvinnik & Mikhail Tal, World Championship Return Match, Moscow 1961. (Photo credit: unknown.) #chess / X

Douglas Griffin on X: Riga, of course, has a long and rich #chess history. 40 years ago this September, Mikhail Tal scored one of the greatest results of his later career, winning

Douglas Griffin on X: Ex-World Champion Mikhail Tal, in play at the Hoogovens tournament at Wijk aan Zee, January 1968. (Photo source: #chess / X

Douglas Griffin on X: Wijk aan Zee, 19th January 1968. Viktor Korchnoi faces Mikhail Tal in what proved to be the last of eight(!) successive victories at the start of this 15-round

Douglas Griffin on X: Ex-World Champion Mikhail Tal (b. Riga, 1936; d. Moscow, 1992), pictured at Wijk aan Zee, January 1988. (📷: #chess / X

Douglas Griffin on X: Pictured at a blitz training session in the spring of 1975: World Championship challenger Anatoly Karpov, his trainer - grandmaster Semyon Furman, ex-World Champions Tigran Petrosian & Mikhail

Douglas Griffin on X: Ex-World Champion Mikhail Tal gives a simultaneous display in Philharmonic Square, Riga. 1980s. (Photo source: archive of the Latvian Sports Museum.) #chess @sovietvisuals / X

Douglas Griffin on X: Mikhail Tal v. Tigran Petrosian, 25th USSR-ch, Riga 1958, which featured the trademark positional exchange sacrifice by Petrosian, 31Rf4! Semyon Furman looks on. ('#Chess in the USSR', No.

Douglas Griffin on X: 50 years ago this month - Mikhail Tal and Viktor Korchnoi, at Wijk aan Zee, January 1968. Korchnoi won this tournament by a huge margin, finishing 1st with

Douglas Griffin on X: Wijk aan Zee, 15th January 1968. In the 5th round of the Hoogovens tournament, Viktor Korchnoi faces Hans Ree. Standing by the board are Milko Bobotsov, Mikhail Tal & Victor Ciocâltea. (📷: #chess

Douglas Griffin på X: In the press room during 27th match-game Karpov-Kasparov, World-ch, Moscow 1984; Mark Taimanov & Mikhail Tal. (Photo: B. Dolmatovsky) #chess / X