25 Years and the Endgame: Karsten Müller, ChessBase, and the Race to Make Chess Learning Interactive

On August 14, 2026, on its own news page, ChessBase announced a new edition of its Endgame Academy platform, opening with a course titled Checkmate & Pawn Endgames by Karsten Müller. The headline carried four short words: twenty-five years ago. For a man who has sat in front of a chessboard and a microphone for thirty-two years to commentate on chess, that number does not drop down like a mere advertising line. It revives an old question: what makes a chess education brand turn to its own past in order to sell a new product? Karsten Müller is a name known to anyone who has ever studied the endgame. He is not famous for championship titles, but for the thousands of pages of analysis he has written about the final phase of the game. In chess circles, when the endgame is mentioned, people instinctively place Müller at the center. But behind that name lies a story about the market, about how an educational product is packaged, and about the tensions between brand credibility and independent verification. ChessBase is one of the oldest brands in the chess industry. It sells database software, analysis tools, and now online courses. Endgame Academy is its structured learning platform. Opening with Müller's endgame course is a deliberate pedagogical choice. In chess, pawn endgames and checkmate patterns are the most basic building blocks. A club player may memorize hundreds of opening variations yet still lose on move forty because he does not truly master king and pawn. The ChessBase announcement emphasizes one notable point: interactive options have become indispensable in video courses. This sentence, which reads as ordinary at first glance, is in fact a confession of the entire industry. For years, chess education relied on a passive model: a long video, a narrator, and hundreds of variations projected onto the board. The learner sits and watches. But skills only take root when the learner has to solve the problem by hand. That is why platforms like ChessBase are forced to transform. The key point is this: the product does not sell new content, it sells a new way of learning old content. Müller's Checkmate & Pawn Endgames course has existed for years. What has changed is the interactive layer draped on top. This is a familiar business model in the software industry: you do not rewrite the book, you add a new interface and call it the next version. But stopping there would miss the most important thing. In the endgame, there is a paradox that anyone who has taught chess knows: the learner understands the lesson while listening, but forgets it entirely once seated at the board. Müller has written about this many times. A king-and-pawn position can look simple on screen, but when you have to find the right move yourself, your hand trembles. The shift from watching to doing is strongly supported by learning data. Based on my own experience following matches, I have seen young players who know checkmate patterns from books by heart, yet grow confused in a basic king-and-pawn endgame. Passive knowledge and active skill are two different things. This is precisely the gap the interactive model targets. Another notable point is the appearance of Michael Kotyk, a young chess trainer from Hamburg. He is described as someone who examined the product through his magnifying glass. In the education industry, inviting a practicing trainer to evaluate makes clear sense. Trainers are the people who directly deliver a product to students. A recommendation from them carries more weight than any advertisement. This is a grassroots influencer marketing strategy. There is an economic reason behind choosing the endgame as the starting point. Unlike the opening, which changes constantly with each season and each update of analysis engines, the endgame is nearly immutable. The king-and-pawn principles Müller teaches today remain as true as they were a century ago. That means a good endgame course has a far longer commercial shelf life than an opening course. You do not have to update it every year. In chess, there is a truth every trainer knows: most games at club level are decided in the endgame. The opening decides who has the advantage, but the endgame decides who wins. And within the endgame, the pawn endgame is the purest form, where every mistake is punished immediately. A single wrong move in a king-and-pawn endgame can turn a winning position into a losing one within a single tempo. There is no room for luck. That is why Müller begins here, and that is why the choice is pedagogically correct. Calling this a twenty-five-year milestone is also worth pausing over. In twenty-five years, the way people learn chess has changed entirely. From paper books and video tapes, to database software, to online platforms, and now to interactive learning experiences. Müller has traveled the whole journey. He is a living witness to an industry that has reinvented itself at least three times. That he remains at the center of this new edition says a great deal about both personal reputation and brand inertia. Here a tension emerges that I cannot ignore. This product-introduction article is published by ChessBase itself. That means it is not an independent review, but a sales release. When a vendor reviews its own product, you must read it as a skeptical buyer, not as a fan. The claim that nobody is better at the endgame than Karsten Müller is widely accepted in chess literature circles. But it is still a claim, not a measurable fact. No ranking ranks endgame authors. Müller's reputation comes from the volume and quality of work he has published over decades, and that is real. But using that reputation to sell a new product is a commercial move, not a scholarly one. There is one more point worth considering. Describing interactive options as indispensable sounds like a step forward, but in reality it has become the market's minimum standard. Many free platforms have long offered interactive endgame exercises. So the real question is not whether interactivity exists, but how well it is executed. A poorly designed interactive exercise is no better than a good video. It simply wastes more time. And there is a long-term strategic risk: dependence on a single author. ChessBase ties the Endgame Academy brand to Müller's name. That brings immediate credibility, but it also creates a weakness. When a brand bets on one person, it faces the question of succession. Müller will not write forever. Inviting a young trainer like Kotyk to evaluate the product may be a wise move toward diversifying generations of authors. I once believed in emotion, until a number knocked on my door at three in the morning. For chess education, that number is the course completion rate. Online learning platforms all know that most buyers never finish the product they purchased. They buy the intention to learn, not the result. So when evaluating an endgame course, the right question is not how good Müller's content is, since that is hardly in doubt. The right question is: will the new interactive layer retain learners longer? If the answer is yes, this is a genuine step forward. If not, it is simply a repackaging of an old product at a new price. Nobody outside ChessBase knows the real number, and they have no reason to publish it. There are chess learners who have been forgotten, but data never forgets them. People who buy a course and abandon it are part of that number. A good educational product, if designed correctly, can pull them back. A poorly designed product will only make the failure number grow. What stands out is the indeterminate state of the information. We know the course name, the author, and that interactivity exists. We do not know the price, the length, the number of exercises, or what the specific interactive features are. In a market where buyers can choose between a paid course and thousands of free exercises, ambiguity about value is a problem. The surprise lies here: if ChessBase is truly betting on interactivity, then its competitor is not other course brands, but the free platforms. When you charge money, you must prove you are better than free by not just a little, but clearly. Müller's reputation can achieve that, but only if the interactive layer is genuinely superior. The next things to watch are very concrete: price and access model, the number and quality of interactive exercises, and independent feedback from the chess community rather than from ChessBase itself. When those three elements appear, we will know whether this is a genuine step forward or just a carefully packaged marketing performance. I light a candle for data, but I always let the flame of emotion light the way for the question. In chess, the learner's emotion is the most valuable data and also the most easily forgotten. An endgame course does not only teach moves. It teaches patience, precision, and self-respect before a position that seems hopeless. If interactive technology helps convey that, then this is good news for an entire generation of players. The question I leave behind is not whether Müller's course is good. His reputation answered that long ago. The question is whether a brand can turn one man's reputation into a genuinely effective learning experience in the interactive era. If it can, ChessBase will reshape how the entire chess education industry operates over the next ten years.