FRITZ 20 and the New Chess Gym: After 33 Years, the Machine Learns to Be a Patient Teacher

Da Nang, 9:47 p.m., a Thursday in late November. In a small room deep down an alley off Nguyen Chi Thanh Street, Huy, thirteen years old, is not looking at the board. He is watching the number bar running along the edge of the screen: minus 0.42, then minus 0.31, then 0.00. His left hand rests on a knight. His right hand rewinds the game to move twenty-seven. Mr. Bay, seventy-two, the club's coach, stares at that evaluation for a long time, then says something I copied word for word into my notebook: "Back when I played tournaments, nobody told me my twenty-seventh move was bad. It took me twenty years to figure it out myself."

In the winter of 2026, I sat in exactly that posture in front of a screen, except what ran across it was a running track. I slowed the footage from SEA Games 29 in Kuala Lumpur, frame by frame, four hundredths of a second apart, to count Nguyen Thi Oanh's stride rhythm in the decisive lap of the 1,500 metres. She finished in 4 minutes 15.07 seconds. That video series reached 214,000 views and more than 1,200 shares in under a week. Years later, sitting next to a thirteen-year-old in a provincial club, I realised I was still doing one thing: teaching the eye to see what it cannot see.

People talk about speed, but I find time. On the track, the unit is hundredths of a second and breaths. On the chessboard, the unit is tempo, a waiting move, the silence between two touches of a piece. In both places, the machine does one thing only: it turns silence into readable data.

The name FRITZ is thirty-three years old in computer chess. The first version shipped in 2026, developed in Germany by Frans Morsch and Mathias Feist. Four years later, in Hong Kong, Fritz won the world championship for chess programs. In the early 2000s came the most famous chapter: in 2026 in Bahrain, Deep Fritz drew 4-4 with Vladimir Kramnik; in 2026 in New York, Garry Kasparov also drew 3-3; in 2026 in Bonn, Kramnik lost 2-4, with the sixth game ending in a checkmate the Russian world champion missed as the clock ran down.

After that milestone, Fritz changed seats. It left the opponent's chair for the teacher's chair. ChessBase turned the program into a teaching tool for clubs and schools across Europe. In November 2026, FRITZ 20 was released, with the stated emphasis on individualising training for every player, from a beginner taking the first serious steps to someone already competing at national level.

In Vietnam, where I live and write, this story carries a different layer of meaning. School chess exploded after the pandemic, with talent classes springing up in Hanoi, Ho Chi Minh City, Da Nang, Can Tho and Nghe An. Entries in national youth championships have risen every season. Leading players such as Le Quang Liem, Nguyen Ngoc Truong Son, Pham Le Thao Nguyen and Nguyen Thi Mai Hung have become models for a generation that learns chess on phones, on laptops, on online platforms hosting millions of games a day.

Most of those children have no private coach. They have a shared computer at the club, a retired teacher, and a piece of software. That gap is why I followed FRITZ 20 from the moment it was announced, not as an eager user but as someone who studies competitive conditions. Based on my experience watching matches and visiting chess rooms across many provinces, the real value of a training tool is not engine strength but how many years of blind groping it removes from a learner's path.

The core point is this: FRITZ 20 shifts the focus from beating the player to recording how the player repairs himself, turning that process into repeatable data.

According to the publisher's product materials, this version integrates a new-generation engine built on neural-network technology, delivering faster analysis and steadier evaluation in complex positions. That sounds technical, but the practical consequence for a provincial club is concrete: shorter waits between analyses mean a two-hour session can hold more games, more positions, more corrections.

More important is the exercise system. The software organises a tactics library by theme, an endgame library by technical type, and an opening trainer that lets a learner build a personal repertoire and test recall week by week. I watched a coach in Da Nang use it to build a three-month plan for a sixteen-year-old student from Quang Nam preparing for the national youth championship. He split the week into four tactics sessions, three endgame sessions, two opening sessions, and one session reviewing the student's own games.

That review mode is where I saw the sharpest change. A learner imports his own game, and the program flags moves considered serious errors, with alternatives and the positional damage attached. A thirteen-year-old can discover for himself that he surrendered his advantage on move twenty-seven, precisely the move Mr. Bay needed twenty years to see in himself.

One small detail caught my attention. During the session in Da Nang, the child did not ask "which move is strongest." He asked "why is this move bad." The second question is far harder, and it only appears when a tool offers an explanation instead of a bare number. Any software that builds that habit is doing a teacher's job.

I also noted how the game database is organised. Users can search by player, by tournament, by position structure. For a coach in a province with no budget for foreign literature, this is a library opening on site. He can pull a game by a top player, rebuild the variations, and compare them with how his student handled the same position.

The sparring mode, which allows strength adjustment and imposed starting positions, deserves mention too. A young Vietnamese player often trains by playing hundreds of blitz games online against anonymous opponents. That builds reflex but not the capacity to endure a difficult position for forty moves. Sparring against an opponent tuned slightly below your level, from a passive position, builds exactly what real tournaments demand.

In the opening phase, the software adds a repertoire builder with periodic testing. This is where I see Vietnamese students weakest. They memorise the first fifteen moves of a popular line without understanding why move sixteen differs, so when the opponent deviates they fall off the board while the clock keeps running.

The video lectures by grandmasters bundled into the package act as a supplementary class. I am not a fan of one-way video learning, because chess is a game you must touch. But where no grandmaster lives, a lecture on slow good structures can plant an idea a child will use a year later.

The rhythm of a session changes accordingly. A provincial club session used to be: the coach sets a position, the student thinks, the coach reads the answer. Now a plausible structure is: the student brings his own game, the machine points at the error, the student looks for the fix, the coach checks the reasoning. The teacher moves from answer provider to logic inspector.

That is why I use the word polymath about chess coaching today. A coach in this decade must simultaneously be a tactics analyst, a data reader, an equipment manager and a keeper of a student's morale. No tool replaces any of those roles, but it forces the teacher to be fluent in all four.

There is a reality rarely discussed. Convenience is not free. Professional training packages run on subscriptions, and for a provincial chess coach the annual licence costs about a week's income. A class of thirty children sharing one computer means each child touches the tool for four minutes a session.

Here I want to be blunt about how sport allocates money. In the transfer window, people count million-dollar deals and call it investing in the future. In chess, spending on a training room with enough machines, licences and guidance sits at the bottom of the waiting list. Transfers are a symphony; the numbers are only notes. But that symphony has never been written for small rooms like Mr. Bay's.

Female players suffer twice. They have fewer personal sponsors, fewer overseas training slots, and are usually last to access expensive analysis tools. Promoting women's events as a sponsor's social-responsibility commitment while a girl in a province cannot afford one software account is a paradox I have seen repeat across many sports in my career.

There is a further counter-intuitive angle. The more numbers appear, the easier it is for a learner to mistake reading for understanding. A scored and labelled game creates a feeling of rapid progress, while what actually changes lies elsewhere: the ability to sit still with an ambiguous position for twenty minutes without panicking.

Heatmaps and evaluation tables have become a new form of fortune-telling. They tell viewers which player ran most, which competitor erred most, while hiding a person's real role in a system. A ninety-percent accuracy rate cannot say that someone spent thirty moves absorbing pressure so a teammate could rotate.

The same happens on the board. An evaluation of 0.00 on move twenty-seven does not reveal which of the two players endured that position longer, who calculated ten moves ahead and who merely repeated memory. A tool measures results; it does not measure the value of endurance.

For young Vietnamese players, the strongest temptation is named immediacy. A three-minute blitz game feels like clearer progress than an hour of endgame analysis. Online statistics reinforce that feeling, because they reward volume and punish with a cold Elo number.

A good training program swims against that current. It does not add games; it forces a return to old ones. It does not hand out points; it hands back questions. The value of FRITZ 20, as I observed it, lies in being strong enough to discourage a learner and patient enough to stay after the learner closes the training room door.

Empty stadiums, and a podcast taught me to listen to a match from inside. In the months without tournaments, I recorded a conversation with a swimmer who trained in a river because the pool was shut. He said something I keep: with no crowd, only technique remains. Chess is the same. With no tournament, only the process remains.

From the sandpit runway to the virtual arena, sport's homeland has no borders. Software written in Germany, installed on a computer in Da Nang, used to teach a boy from Quang Nam how to stay calm in a rook-and-pawn endgame. There is no border in that chain, only time, money and persistence.

In the silence of the stands, the future wears running shoes. In chess, that future wears flip-flops to the club at seven in the evening, opens a laptop, and rewinds its own game.

What I want parents and sports administrators to take from the FRITZ 20 story is not a feature list. It is an observation about investment. A country can produce more outstanding young players if school training rooms are equipped well enough for a child to see his own mistakes, rather than waiting for an exhausted teacher to point them out.

I have spent thirty-nine years standing at the edge of arenas, from running tracks in Kuala Lumpur to stadiums in Tokyo, and the most repeated lesson is this: what separates those who go far from those who stop is not talent but the capacity to endure looking at one's own mistakes. Any tool that makes that slightly more bearable is worth years of study.

The machine dethroned a world champion back in 2026. The task now is not to beat it but to learn how to let it teach us, and to let it teach the weakest person in the room. If software can make Mr. Bay, seventy-two, and Huy, thirteen, sit quietly over one position and ask the same question about why, then its hardest test has already been passed.

The question I leave behind: if a free chess training room opened tomorrow in every district, how many teachers who know how to ask questions would Vietnamese chess need, rather than how many stronger machines?