GM Dr. Karsten Mueller, born on November 23, 1970, in Hamburg, has played for Hamburger SK in the Bundesliga since 1988 and became a grandmaster in 1998. He studied mathematics and graduated in 2002.
Together with Frank Lamprecht, he authored “Secrets of Pawn Endings” (2000) and “Fundamental Chess Endings” (2001), with Martin Voigt “Danish Dynamite” (2003), with Wolfgang Pajeken “How to Play Chess Endgames” (2008), and with Raymund Stolze “Fighting and Winning with Hikaru Nakamura” (2012).
His “Endgame Corner” column has appeared on ChessCafe since 2001, and his ChessBase endgame DVDs are widely respected. In 2007, he was named “Trainer of the Year” by the German Chess Federation.

Endgame theory forms the basis of chess. You understand this all too well when you reach a theoretically won endgame but must settle for a draw, as you lack the necessary know-how to win. Misfortunes of this kind can only be counteracted by developing a solid endgame technique, and this course by German grandmaster and endgame expert Dr Karsten Müller lays those foundations.
Free sample videos: Mating with bishop and knight: W-maneuvre
Picture this: you’ve outplayed your opponent move by move, you’re clearly better – and then the endgame slips into a draw, simply because you lacked the crucial theoretical knowledge. That is exactly where this course comes in. Without solid endgame skills, there’s no way forward. Rook endgames are most essential: they occur more often than any other type of endgame, and often make the difference between victory and half a point. If you master them, you’ll confidently convert your advantages into wins!
Free sample videos: Introduction - Bodycheck
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Playing styles in chess are an important and thus often discussed topic. GM Dr. Karsten Müller and GM Luis Engel take up a model by GM Lars Bo Hansen based on 4 player types - namely ‘activists’, ‘pragmatics’, ‘theoreticians’ and so-called ‘reflectors’. Their respective strengths and weaknesses are explained with the help of many examples, enabling the reader to try and assign himself or herself to one or the other player type.
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The Complete Endgame Course by Karsten Müller!
Vol. 1: Basic knowledge for beginners
Total playing time: Approx. 70 hours!
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Endgames decide more games than any opening preparation ever will and yet they are often the least understood phase of chess. In this powerful new course, endgame expert Karsten Müller teams up with rising star Leon Mendonca to deliver what truly matters: 10 essential rules that every player must know.
From activating your king and rook to mastering zugzwang, creating passed pawns, and exploiting the principle of two weaknesses, this course distills complex endgame theory into clear, practical guidelines you can apply immediately.
Free sample videos: Introduction - Activate the king
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WIM Svitlana Demchenko, born 2003, is a Ukrainian-born Canadian chess player. She was a multiple-time Canadian Girls Champion and a two-time North American Girls Champion in different age categories.
Svitlana has been a member of the Canadian Women’s Olympiad Team since 2018, and has represented Canada at the Women’s World Cup.
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Facing the Sicilian doesn’t have to be complicated. The Alapin Variation (1.e4 c5 2.c3) offers a simple yet highly effective solution to all major Sicilian lines, by sidestepping them with 2.c3. Whether your opponent plays the Najdorf, Taimanov, or Dragon, the Alapin lets you take control of the game as early as move two.
Free sample videos: Introduction - 2...g6
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The Leningrad Dutch Defence is a dynamic and aggressive opening choice for Black, perfect for players who want to add some adventure and spice to their repertoire. Unlike its relative, the Stonewall Dutch (…f5-e6-d5), the Leningrad Dutch setup (…f5-g6-d6) is more flexible and more risky, having similarities with the double-edged King’s Indian Defence.
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The King‘s Indian Attack is a universal opening: easy to learn, flexible, and rich in both tactical and positional opportunities. By simply knowing the setup and some key ideas, it can become a lifelong addition to your repertoire - without the need for constant memorization.
Free sample videos: Introduction - Typical Setups - KIA against d5-c5-Nc6-e6
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60-minute courses are a selection of exciting and practical openings that are both easy to learn and enjoyable to play. Current opening theory can be lengthy and complex, so exploring less conventional options can bring a fresh variety to your games. While this is not a complete repertoire, the included openings cover several bases. As Black, you will be equipped with the dynamic Portuguese Variation of the Scandinavian Defence against 1.e4 and a creative 3…h6 line against 1.d4. As White, we explore the aggressive Scotch Gambit and the versatile King’s Indian Attack that can be quickly yet effectively added to your repertoire. The video section highlights the main ideas behind these openings, while more detailed opening files are available for closer review.
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