It’s an annual tradition!  Popular Chess24 personality,  noted opening theoretician and friend of Perpetual Chess, GM Jan Gustafsson returns to the show! Jan has just released his first Chessable course, Lifetime Repertoires: Jan Gustafsson’s 1. e4 e5 , so it was a great time to catch up with him. In addition to discussing the details of his course, and a bit about the theoretical trends of double king pawn openings, we also discussed Jan’s near term plans with Chess24, past and future World Championship matches, plus much more. Please read on for more details and timestamps.  Mentioned: German Chess Bundesliga (aka Schachbundesliga), Fatih Baltic-Jan Gustafsson 2019, Gustafsson-Naumann 2019, LeelaZero, Rybka, Stockfish, IM Christof Sielecki, GM Larry Kaufman, IM David Vigorito Mentioned: The End of the King’s Gambit by GM Ivan Salgado. The Petroff defense Mentioned:  Essential Pawn Structures by GMs Jan Gustafsson and Laurent Fressinet, GM Magnus Carlsen  . Mentioned: flat white coffee, cold brew coffee, Bulletproof coffee, GM Laurent Fressinet, GM Maxime Vachier-Lagrave Mentioned: Magnus documentary Mentioned: GM Peter Heine Nielsen, GM Rustam Kasimdzhanov, GM Radoslaw Wotjasek, GM Surya Ganguly, The Exchange Slav, IM Gary Lane, Facebook Chess Book Collectors Group, GM Cristian Chirilia, GM Alejandro Ramirez, GM Leineir Dominguez  Mentioned: GM Fabiano Caruana, GM Ding Liren, GM Maxime Vachier-Lagrave, GM Peter Svidler, GM Alexander Grischuk, GM Anish Giri, Wijk an Zee chess (aka Tata Steel Chess) Mentioned: Barry, Succession, Bill Burr, Jeselnik and Rosenthal Vanity Project, How Neal Feel, Two Bears One Cave, Frozen 2, Parasite, FM Fatih Baltic , IM Yochanan Afek, The Lowe Post, The Bill Simmons Podcast, Hollinger and Duncan NBA Podcast, and US Chess Podcasts Thanks to Jan for coming on the show! The best place to keep up with him is on Chess24.com  Catch Jan Gustaffson’s prior Perpetual Chess visits here:Episode 2- https://podcasts.apple.com/us/podcast/ep-02-grandmaster-jan-gustafsson/id1185023674?i=1000378779364Episode 62- https://podcasts.apple.com/us/podcast/ep-62-grandmaster-jan-gustafsson-returns/id1185023674?i=1000405079252Episode 115- https://podcasts.apple.com/us/podcast/ep-115-gm-jan-gustafsson-returns-again/id1185023674?i=1000430646087 If you would like to help support Perpetual Chess, you can do so here: https://www.perpetualchesspod.com/donateIf you would like to help support the podcast via Patreon, you can do so here. https://www.patreon.com/perpetualchessSee omnystudio.com/listener for privacy information. Learn more about your ad choices. Visit podcastchoices.com/adchoices