Karsten Müller and 25 Years of Sowing the Final Moves: When the Endgame Becomes a Trial of Memory

On the board there remained only a white king, a pawn, and a black king. No heavy pieces, no complex coordination, no brilliant combinations. A casual glance would call it boring. But I have sat before such positions long enough to understand that this is where the truth reveals itself. There is no ornate tactic left to hide behind. Only pure technique, and nerve.

I remember writing that on an autumn night, after watching an endgame unfold at a youth tournament. Two sixteen-year-olds, three hours, and an outcome decided by a single well-timed king advance. The winner laughed loudly. The loser sat silent for a long time. I understood both. I had once been in both seats, and I knew that on the chessboard, the endgame is the only place where no one can hide behind memorized theory.

That is why, when I read the news from ChessBase that Karsten Müller was returning with a new endgame course, I did not treat it as an ordinary product announcement. I read it as a reminder. In a chess world spinning around openings, engines, and evaluation numbers measured to the percentage point, there are still people patiently sowing seeds in the second half of the board — the half that most amateur players abandon back in their school years.

I thought I had been exiled from the board; it turned out the board was leading me deeper into myself.

Context: 25 years of one man guarding the endgame

Karsten Müller is not the name behind breathtaking victories. He does not hold a world championship, he does not have sacrificial combinations replayed millions of times. But in chess research circles, Müller is the first name mentioned whenever someone asks about endgames. He writes endgame columns for long-established chess magazines, has published numerous books on endgames, and has taught generations of young players.

According to information from ChessBase, Müller began working with the platform roughly 25 years ago. That number echoes the title the company used to introduce the new course — a nod to a long road. In an industry where educational products often live short lives, a relationship lasting a quarter of a century is worth noting.

The new course sits within a program called the Endgame Academy. The first portion is titled Checkmate and Pawn Endgames — that is, the foundation of the foundation. Checkmate is the final destination of every game. Pawn endgames are the most basic form of endgame, where only kings and pawns remain on the board. Choosing these two subjects to open with is a clear pedagogical decision.

More notable still is who was invited to review the product. ChessBase introduces Michael Kotyk, a young Hamburg chess trainer, as the person who examined the course through the lens of a coach. A product platform inviting someone else — even within its own ecosystem — to stand up and evaluate is a move worth acknowledging.

But when reading a promotional release, I always remind myself to keep some distance. ChessBase is reviewing a ChessBase product. Müller is the author, and Müller is also an inseparable part of the brand. What needs to be found is not praise, but the larger question behind it: Why, in 2026, must someone remake a course about the endgame? And why must the endgame — the most basic thing — always be repeated like a debt reminder?

Core analysis: The endgame is where memory becomes technique

When I still played competitively, my coach had a line I have carried my whole life: openings are learned from books, middlegames from the machine, but endgames are learned from yourself. It sounds sentimental, but it is technically accurate. The opening is memory. The middlegame is intuition and calculation. The endgame is discipline — a discipline formed only through thousands of repetitions.

The endgame is not the easiest part of the game just because fewer pieces remain; it is the hardest part because there is nothing left to blame.

In the middlegame, you can blame a complicated position. In the opening, you can blame forgotten theory. In a king-and-pawn endgame, every move has a right or wrong answer, and that answer does not depend on inspiration. It depends only on whether you know the rules by heart.

That is why I care about how this new course is designed. According to information from ChessBase, the product does not merely present games to review; it also includes interactive exercises — the learner must make a move, must decide, before seeing the answer. This is the important point.

For years, chess courses operated on a television principle: the teacher speaks, the student listens. The learner sits before a screen, nods, feels he understands, then closes the window and forgets everything. That is artificial learning. Interactive courses reverse the process. The learner must make a decision before being taught. The brain is forced to participate rather than sit still.

Kotyk, in his review, is reported to have said that interactive options have become indispensable in video-based courses. The observation is not new, but it reflects a reality of the entire online learning industry, not chess alone. Language platforms, coding platforms, music platforms all took this road long ago. Chess is catching up.

But I want to go a little further. Interactivity is not merely a technical upgrade. It changes the nature of endgame learning. When you must make a move yourself before knowing the answer, you are rehearsing exactly what a player does at the real board: deciding under pressure, with no hint button. The endgame was already the form of training closest to real play. Now it also forces the learner to accept the risk of being wrong from the very moment of study.

That is a different philosophy. And it makes me believe that the Checkmate and Pawn Endgames portion is not the starting point because it is easy, but because it sits at the root.

Think about pawn endgames. It is the type of endgame every player encounters, from beginner to grandmaster. In it, a single square on the board can decide everything. The square rule, the opposition, pawn-pushing technique — all have exact theory. There is no room for ambiguity. For a child just learning chess, this is the first lesson in responsibility: every move leaves a consequence that cannot be erased.

Checkmate is the destination. A person learning chess who does not know the basic checkmate patterns is like a martial artist who does not know how to make a fist. Everything before — opening, middlegame — only leads to that moment. That Müller begins here shows he teaches by returning to the root, not by showing off complex lines. That is the way of a true teacher.

I once witnessed this in a club-level game. Two young players fought fiercely in the middlegame. One gained an advantage, two extra pawns. But when the endgame arrived, the one with the advantage lost. He did not know that two extra pawns in a king-and-pawn endgame do not always win. He pushed a pawn in the wrong order, was held to a draw, then lost. After that game, he sat silently, turning the king piece in his hand. I understood that feeling. I too had once lost because of a pawn pushed one square wrong.

That is why the endgame is where memory becomes technique. You cannot forget losses like that. And that memory is what teaches you.

The contrarian angle: What '25 years' is really saying

Read casually, the 25-year title sounds beautiful. It evokes loyalty, endurance, a long road. And that is true. But thinking more carefully, I see that number saying something else, more uncomfortable.

Remaking a basic endgame course after 25 years is not only an anniversary; it is evidence that the chess-learning market turned its back on foundational lessons for a quarter of a century.

Look at how chess platforms compete today. They race in the opening. Opening databases are updated weekly. Middlegame courses are given names with flattering words about attacking tactics. And the endgame? The endgame is usually pushed to the bottom of the list, treated as an appendix the learner will discover when needed.

But the truth is the opposite. An amateur player who plays twenty games will face unfamiliar openings in most of them. Yet most of those games will not be decided by the opening. They will be decided by small endgames he does not recognize as endgames. An extra pawn lost at move thirty. A draw that should have been a win. An outcome missed because of not knowing the opposition rule.

So why does the market still turn its back on the endgame? Because the endgame is not glamorous. No one shares a king-and-pawn endgame on social media. No one writes a long piece about pawn-pushing technique the way they write about a spectacular sacrifice. The endgame sells slowly. It does not create viral moments. And so it is content that everyone admits is important but no one buys.

That is the paradox. And I believe the reappearance of Müller at this moment is a good sign. A gatekeeper of the endgame, after 25 years, can still return to his old platform and be welcomed. It means there is still room in the market for content that is not attractive in the short term.

I once wrote on my personal blog that we live in an age of beautiful openings and sloppy endgames. And this is part of what I meant.

Another point deserves a question mark. Educational products today are often repackaged and reissued under a new label. When a product is reintroduced with an anniversary title, the buyer must distinguish: is this new content, or old content with a refreshed interface and added interactive features? Both have value. But different value. For someone who has never studied the endgame, this could be an opportunity. For someone who already owns the old version, it could be paying again for the same knowledge.

I have no answer, because the release does not specify the degree of new content. But this is a question the buyer should ask before deciding.

Finally, a rarely mentioned point. Müller is of German origin, writes in German, works within a Western chess ecosystem. But the endgame is a common language. A king advance to claim a square in Hamburg is the same king advance to claim a square in Da Nang. In the endgame, borders vanish. That is why I believe endgame materials are the most easily shared content among different chess cultures. And perhaps that is how a course made by a German can teach a Vietnamese child to make the right move.

In a chess world divided by opening schools, the endgame is a rare plot of land that remains neutral.

A thought to carry forward

I do not know whether the Vietnam Chess Federation should license this course to add to its youth training program. But I know one thing more certain. Any child who wants to become a player worth watching will have to learn the endgame. There is no shortcut. No engine can replace pushing a pawn to the promotion square with your own hand.

Karsten Müller, after 25 years, is still doing the work he was born to do. He does not shout to draw attention. He simply places positions on the board and lets them speak for themselves. In an industry swept up in the rapid pace of analysis tools, his patience is something worth remembering.

I thought I had been exiled from the board; it turned out the board was leading me deeper into myself. And perhaps every endgame course remade is also the board leading a new generation back to itself — back to the part of the truth they usually forget in the second half of the game.

I thought I had been exiled from football; it turned out football was leading me deeper into myself. And with chess, the same. The board never abandons anyone. Only someone abandons the board.

A question left behind: if every player has once lost a game because of a weak endgame, why do we keep waiting until we lose before learning it?