This week I talk with a top Dutch trainer, chess player, opening theoretician and prolific author, IM Jeroen Bosch. Jeroen is well known for his 14-volume New in Chess series, Secrets of Opening Surprises, and he has recently released a highly instructive new book called How to Out Prepare Your Opponent. The book discusses all aspects of how one should approach the opening, with topics ranging from how to select a repertoire, which openings to play, to GM Magnus Carlsen's unique approach to the opening. Jeroen joined me shortly before heading to the Olympiad as the trainer for the Dutch Women’s Team, so we also talked about how he planned to approach helping the team prepare for such a prestigious event. Lastly, we also discuss Jeroen’s career highlights. As a player, Jeroen has competed in several Dutch National Championships and has beaten 2 players who have been in the top 10 in the World!  Please read on for lots more details and timestamps of topics.  0:00- IM Bosch shares his thoughts about Magnus Carlsen’s decision not to defend his World Championship title, which segues into what we can learn from Magnus Carlsen’s approach to openings.  11:00- Any early opening predictions for a Ding vs. Nepomniatchtchi match? 13:00- Perpetual Chess is brought to you in part by Aimchess.com. Aimchess’ algorithm reviews your games and gives you actionable advice on how to improve your game. Check it out for free, and if you choose to subscribe you can use the code Perpetual30 to save 30%. Or use this link for the same discount: https://aimchess.com/try?ref=benjohnson12 16:00- Patreon mailbag question: “Does Jeroen recommend that club players utilize a narrow or a broad opening repertoire?”  28:00- Patreon mailbag question: “How would Jeroen advise a club player to select a repertoire?”  32:00- Patreon mailbag question: “Is there an ideal repertoire for an older club player?” Mentioned: GM Peter Svidler on the How to Chess Podcast (Episode 14) 44:00-Perpetual Chess is brought to you in part by Chessable.com. Be sure to check out what is new including NM Bryan Tillis’ Olimpiad course for Pro Members, as well as their other great new courses.  46:00- Jeroen discusses the opening approach of WIM Lisa Schuut, who utilized a very professional approach to openings.  Mentioned: GM Vladimir Chuchelov  48:00- Patreon mailbag question: “Can Jeroen suggest how to train openings beyond just applying opening principles? Could he recommend a few Black openings for club players?”   56:00- Jeroen’s closing advice on openingsv advice: Actively ask yourself questions when studying openings!  1:00:00- What are Jeroen’s favorite OTB memories? Timman-Bosch 2001, Ljubojevic-Bosch 2006  1:06:00- Jeroen is coaching the Dutch women’s team in the Olympiad.Olimpiad. What are their goals?  Thanks to Jeroen for joining the show!  You can check out a free sample of How To Out-prepare Your Opponent here: https://www.newinchess.com/how-to-out-prepare-your-opponent Learn more about your ad choices. Visit podcastchoices.com/adchoices