Karpov’s Middlegame Mastery | Grandmaster’s Choice – GM Dariusz Swiercz February 26, 2021 NHaselton Chess Lectures Saint Louis Chess ClubFri, February 26, 2021 1:45amURL:Embed: Grandmaster Daro Swiercz teaches a chess class on a topic of his choice. 2021.02.25