Learning the Endgame in the Age of Interactivity: Karsten Müller and ChessBase's 25-Year Door

Opening: When the Board Falls Silent

On an August evening, I sat in front of a screen with an endgame position containing only two kings, two pawns, and a bishop. I muted everything, set a countdown clock, and started moving. No audience, no commentary, just light and dark squares and the soft tap of a keyboard. After thirty minutes, I realized I had just missed a basic technique that any player with a solid foundation should handle in a few moves.

It was in that moment that the news of ChessBase releasing a new version of its Endgame Academy made me pause. Not because I needed another product, but because it touched an old fracture in how we learn chess: we spend thousands of hours on openings, hundreds on middlegame tactics, but when the board contracts, we often stand before empty squares without knowing where we are truly weak.

What caught my attention was not the brand name, but the presence of Karsten Müller — a man who has been tied to the endgame longer than many of us have been tied to chess. And the way ChessBase frames this as a "25-year" milestone made me wonder: after a quarter of a century, what has actually changed in how people learn the final part of a game?

Following this story from ChessBase News on August 14, 2026, I found one claim worth analyzing: "nobody better than Karsten Müller" for the endgame. This is a sentence I have heard repeated many times among amateur players, and it always makes me want to check it against the data. Tactics never lie; only the reader misreads them — a rule that applies to the board and to how we evaluate a product.

Context: One Man, One Column, and Twenty-Five Years

Karsten Müller is not a player famous for elite tournaments. He is famous in a different way — and that way is the whole story. For decades, Müller has been ChessBase's lead endgame writer and the author of a long series of endgame textbooks. His "Endgame Corner" column became a kind of implicit reference for anyone who wanted to understand the final phase of a game not through inspiration but through structure.

What is interesting is that Müller's career was not built on victories. It was built on explanation. This is the point I want to stress, because in chess, credibility is usually measured by Elo. Müller showed there is another kind of credibility: the credibility of the person who understands. And in the endgame, understanding matters more than winning.

The ChessBase source mentions Michael Kotyk, a young Hamburg coach who "scrutinized" Müller's classic endgame courses as a form of independent verification. There is a notable detail here: a young coach stepping up to re-evaluate a veteran author shows how the chess-education industry is reorganizing itself. Knowledge is no longer only passed from one generation to the next; it is cross-checked.

Structurally, the announcement says the Endgame Academy launches with a first course titled "Checkmate & Pawn Endgames." This is a deliberate choice, and I want to analyze why. ChessBase also claims that "interactive options have become indispensable in video courses." Read carefully, that sentence is not a product description — it is a statement about market standards.

I need some historical context to place everything correctly. The chess-education industry has gone through three distinct phases. The first was books. The second was video and disc-based software. The third — where we are now — is the interactive environment on digital platforms, where learners do not watch but act. Each phase has a different learning philosophy, and ChessBase's emphasis on interactivity shows it is responding to the third.

Müller stands at the intersection of all three. He began when books were king, moved to software when computers entered the training room, and now steps into the age of interactivity. That is why the "25-year" mark is not just an anniversary number. It is a historical trace of an entire industry.

Still, I want to be wary of that framing. The phrase "25 years ago" in the source title carries memory rather than news. It suggests this product is largely a repositioning of a legacy, not necessarily a leap in content. This is something I will return to in the counterpoint section.

Core Analysis: The Geometry of the Final Squares

When I talk about geometry, I am not using a metaphor for fun. In the endgame, geometry is the only thing memory cannot buy. In the opening, you can memorize. In the middlegame, you can calculate tactics. But in the endgame, you must understand space — and space in the endgame is the most abstract thing, because only a few pieces remain on the board.

Take the pawn. A pawn looks simple, but how it advances through squares, how it controls, how it blocks the enemy king — that is pure geometry. With two kings and three pawns, every square matters. No extra piece hides a mistake. That is why Müller's first course starts with pawn endgames and checkmate patterns.

Choosing "Checkmate & Pawn Endgames" as the starting point is no accident. It follows a very specific pedagogical logic: checkmate is the ultimate goal, and the pawn endgame is the technical foundation. If you do not understand pawns, you understand nothing. If you do not master checkmate patterns, you cannot convert an advantage into a win. These two topics are two ends of the same thread.

Let me pause on pawn endgames, because this is where I see the most amateur players fooling themselves. They believe pawn endgames are "easy" because there are few pieces. The opposite is true. When the board is empty, nothing hides weakness. A single wrong king move in a pawn endgame can turn a win into a draw, or a draw into a loss, within two moves. Because there are few pieces, every piece must be perfect.

This is why I see the endgame as the most honest test of a player. You cannot blame an opening line, you cannot blame a complex position. Just you, a few pieces, and geometry. Sometimes, to understand the game, you must stand in silence longer than others are willing to endure — in the endgame, silence is the entire game.

Now, interactivity. ChessBase claims interactive options have become indispensable. I agree with the claim, but not for the reason marketers want. I agree because learning science says one very simple thing: we remember what we do, not what we watch. When learners click, move pieces, and face instant feedback, the brain processes information quite differently from watching a video.

This matters especially in the endgame, because the endgame demands procedural skill — a skill that forms only through active repetition. Watching a video about the Lucena position does not help you remember it. Moving through the Lucena position yourself, failing a few times, then fixing it, does. This is not my opinion; it is a general principle of skill learning.

However, I want to distinguish "interactivity" as a feature from "interactivity" as a method. A product can have interactive puzzles yet teach nothing if the puzzles are poorly designed. Another product may have only a few carefully selected exercises and be far more effective. The difference lies in the quality of the pedagogical design, not the number of buttons. And this is precisely what ChessBase's announcement, naturally, cannot answer — because no independent source has evaluated this quality.

Look at the numbers to see the bigger picture. An average club player spends most training time on openings, where computers have produced near-optimal answers. But in the endgame, where human skill still makes a big difference, training time is far less. This is the core paradox: we train where computers are already done, and neglect where we can still make a difference.

In this sense, the endgame is the last territory where an amateur can build real class. A course like Endgame Academy is therefore not just a product. It is a statement that the game's final phase deserves to be taken seriously. In an industry that sells speed, selling patience is worth acknowledging.

People say girls know nothing about tactics. So I write for them to read — and to remind myself that understanding does not come from excitement, but from patience. Tactics never lie; only the reader misreads them. The endgame is the most honest form of tactics, because nothing is hidden. And a good endgame course is one that teaches honesty with yourself.

Counterpoint: The Blind Spots Behind Interactivity

But I will not stop at admiration. There are three blind spots I must raise, and they matter more than the praise.

First is the quality of interactivity. The announcement says interactivity is "indispensable," but not how it is implemented. Between a pedagogically designed puzzle and a set of puzzles added for appearance, the gap is huge. If interactivity is only simple multiple-choice, it is no different from a test; if it lets learners experiment freely and compare against principles, it truly teaches.

Second is dependence on one individual. Karsten Müller is the pillar of this entire endgame line. His personal reputation is a great asset, but also a risk. When a brand relies on a single writer, generational succession becomes a strategic issue, not just a staffing one.

Third — and perhaps most important — is whether a course can truly fix a learner's endgame problem. The problem for most players weak in the endgame is not a lack of knowledge, but a lack of disciplined practice. A good course can open a door, but it cannot walk through it for them.

One more point concerns the competitive picture. The chess-learning market has plenty of high-quality free content. A paid product must prove superior value not only against paid rivals but against free sources. For the endgame, where knowledge is highly stable, this pressure is especially strong.

All these counterpoints do not deny the product's value. They place it correctly in the bigger picture. An endgame course from Müller is almost certainly good. But "good for whom, at what price, and to solve what problem" remain questions to answer before learners spend money.

What to Keep

What is most worth keeping from this news is not the course itself, but the fact that the endgame — chess's most underrated phase — is getting a push from a major brand. It shows something is shifting in how the industry sees value.

For learners, I would suggest a trial approach: if possible, experience the interactive content before committing, and ask whether those interactions teach you to think or merely test your memory. For the market, watch how rivals respond, because competitive reaction often reveals a product's real value faster than advertising.

And for myself, an amateur with many unfinished endgames, this news is a reminder. Not to buy a product, but that the final phase of the game is still waiting for me to return. Sometimes, to understand the game, you must stand in silence longer than others are willing to endure. And perhaps, after 25 years, that is the only lesson that never changes.