Remember how the young master showed up at the 20 USSR ch and made a sensation by beating Smyslov in Rnd 1?
Here's what says the Tournament book,
"Success of the young chess player" the title summarizing Round 1
The biggest upset in Round 1 was GM Smyslov's defeat who played the young Master from Leningrad. V. Korchnoi took, in a big way, advantage of small, inconspicuous mistakes made by his formidable adversary and with impeccable precision pressed home his advantage to a victory.




Thanks Fabelhaft. Here's the young Master