![Douglas Griffin on Twitter: "Mikhail Tal v. Tigran Petrosian, 25th USSR-ch, Riga 1958, which featured the trademark positional exchange sacrifice by Petrosian, 31...Rf4! Semyon Furman looks on. ('#Chess in the USSR', No. Douglas Griffin on Twitter: "Mikhail Tal v. Tigran Petrosian, 25th USSR-ch, Riga 1958, which featured the trademark positional exchange sacrifice by Petrosian, 31...Rf4! Semyon Furman looks on. ('#Chess in the USSR', No.](https://pbs.twimg.com/media/DOcRU-FWsAAXZv6.jpg:large)
Douglas Griffin on Twitter: "Mikhail Tal v. Tigran Petrosian, 25th USSR-ch, Riga 1958, which featured the trademark positional exchange sacrifice by Petrosian, 31...Rf4! Semyon Furman looks on. ('#Chess in the USSR', No.
![Absolutely fantastic chess game - clash of legends: Mikhail Tal vs Tigran Petrosian - 1974 - YouTube Absolutely fantastic chess game - clash of legends: Mikhail Tal vs Tigran Petrosian - 1974 - YouTube](https://i.ytimg.com/vi/E97V0SDTqoc/maxresdefault.jpg)
Absolutely fantastic chess game - clash of legends: Mikhail Tal vs Tigran Petrosian - 1974 - YouTube
![The Petrosian-Spassky World Championship Match (Moscow, 1969), with annotations by Tal, Korchnoi, Boleslavsky & Bondarevsky. | Soviet Chess History The Petrosian-Spassky World Championship Match (Moscow, 1969), with annotations by Tal, Korchnoi, Boleslavsky & Bondarevsky. | Soviet Chess History](https://dgriffinchess.files.wordpress.com/2021/07/1969-wch-moskva-22-petrosian-spassky.jpg)