I also forgot to mention, do you guys think Kan betrayed the Patriarch?
I personally dont think so, even tho according to Botvinnik he had never play this line himself the line had already been played (Tolush vs Bronstein was an example of it, that was played 10 years ago) and I guess that any decent player would prepare for everything, specially if it is a match that could fulfill your dreams.
Poor Kan, I never liked his Sicilian Variation (Taimanov and Najdorf are my ladies) but getting difamated like that doesnt look nice.
PD: Am I the only one that sees the PGN viewer not marking 23...Nxg5+ as a check (it marks it as 23... Nxg5 only, missing the "+").
I was analyzing one of Bronstein games (Tolush vs Bronstein 1944, Fianchetto Kings Indian with the rare 9.Be3) and he mentions that Qb6 was another option which Smyslov tried against Botvinnik (and won).
I looked up on the game and found that Botvinnik suspected that his second (Kan) had told Smyslov about Botvinnik´s preparation.