Vietnamese Chess and Seventeen Empty Cells: The Analyst's Trade When Data Runs Out

On my desk at a small newsroom on Bach Dang Street in Da Nang sits a sheet of A4 paper divided into seventeen boxes. Seventeen empty boxes. No metric, no name, no PGN line, no clock timestamp. I drew those boxes on a March night while preparing a bulletin on the final round of a national chess tournament, then stared at the page for forty minutes without filling in a single field.

That night a supporter from Hue messaged me at 2:14 in the morning. He asked something very specific: the young player I had praised on air three weeks earlier, in the seventh game of the event, how much time had he spent on his twentieth move? I pulled the recording. There was footage. There was sound. There was no data. Nobody in the organising committee had saved the PGN file of that game, nobody had kept a clock log, and the digital clock had been switched off before the camera panned to board four. I wrote back: I have no numbers, I only have a feeling. He replied with a single question mark.

That was the moment I understood where my trade stands. Over more than thirteen years covering chess, I have learned to hear the sound of a piece touching a wooden board, of a chair shifting on the floor, of the very quiet sigh of the player with the white pieces when the opponent plays something outside the expected line. But I had not learned how to answer the simplest question a reader can ask. The microphone does not make the storyteller. It is the silence of the stands that signs every line of commentary. I still believe that, and I will keep believing it. But silence is only credible when there is a bed of data solid enough underneath for the writer to stand up and speak.

Context: a chess nation with medals and a thin archive

Vietnamese people have every right to be proud of chess in their own quiet way, without the noise of football, without the sleepless nights in the streets. In 2026, in Oropesa del Mar, Spain, Nguyen Ngoc Truong Son, a boy born in 2026 in Can Tho, won the World Under-10 Chess Championship. Eleven years later, Le Quang Liem, born in 2026 in Ho Chi Minh City, became the first Vietnamese player to cross the 2700 Elo threshold. In June 2026, in Khanty-Mansiysk, Liem won the World Blitz Championship. Those milestones were written into the record books, repeated in every bulletin, and thoroughly deserved.

Behind those milestones, however, lies a gap that outsiders rarely see. Vietnamese chess has world-class results but no national-scale data archive. We have photographs, we have video, we have fine journalism. We do not have publicly available PGN files for most domestic events. We do not have clock logs. We do not have head-to-head tables broken down by game, by colour, by time control. FIDE publishes the official Elo rating list on a fixed monthly cycle, and that is essentially the entire body of information the community can consult in a systematic way.

The consequence is not that fans lack information. The consequence is that professionals are forced to change trade mid-career. When there is no data, the commentator has two options: say something safe that nobody can dispute, or tell a story. I chose storytelling for years, and I told it well enough that people forgot I was short of evidence.

Based on my experience covering matches at national events as a commentator, the share of games whose PGN files are saved and shared publicly at club and youth level remains very low. Most of what I remember about a player's eighteenth year, I remember because I was in the hall that day. One person's memory cannot replace a sport's archive. Sports culture is a graveyard of names, kept alive so their stories can play one more round. But one more round only means something if somebody recorded the score.

The Elo ladder and the true shape of Vietnam's pyramid

Talking about chess without talking about Elo means talking about a different sport. Arpad Elo's rating system has a neat formula: a new rating equals the old rating plus a K-factor multiplied by the difference between actual score and expected score. Expected score derives from the rating gap, under the convention that every 400 points of difference corresponds to one tier of probability. FIDE sets the K-factor at 40 for a player new to the rating list, 20 for players below 2400, and 10 for anyone who has reached 2400.

What is rarely discussed is that the K-factor creates an invisible ceiling exactly when talent matures. A seventeen-year-old sitting at 2380 gains roughly ten points for beating an equal opponent. Three months later, once past 2400, the same win against the same opponent is worth roughly five. That means the rate of climb on the rating list halves precisely at the moment the player becomes good enough to go far. It is a mathematically sound rule, but it produces a dangerous media illusion: the player looks stalled while actually improving steadily.

For Vietnamese chess, that ceiling is multiplied by another factor. International title thresholds sit at 2200 for FIDE Master, 2300 for International Master, 2400 for International Grandmaster, and 2500 for Grandmaster with norms attached. In Vietnam, the number of players above 2200 is fairly large, the number above 2400 is markedly smaller, and the number living consistently above 2600 has for years been countable on the fingers of one hand. That pyramid shape is not a sign of a weak chess nation. It is the sign of a nation with a good base and a blocked middle.

The blockage comes from the structure of competition. Most games a Vietnamese player plays in a given year take place on the domestic circuit, where results do not count toward the international Elo system. A young player might play thirty games at the national championship and youth events and win twenty, but only seven of those games are rated. The rating list therefore reflects not true playing strength but the number of opportunities to compete abroad. Those who can travel climb fast. Those who stay put, even when their chess does not stand still.

This is where I want to say something plainly that my trade usually avoids. When we call someone a talent who failed to develop, we are reading a rating list and believing we are reading a person. A rating list measures opportunity, not ability. And in a system where opportunity is unevenly distributed by geography and by club resources, the rating list becomes a distorted mirror.

The clock: the most valuable metric nobody saves

If there were one piece of data I covet most in this profession, it would be the time log. Not the result, not the moves, but the trace of time each player leaves along the way.

Competitive chess in Vietnam runs across three modes simultaneously. Classical chess is usually played with long time controls, for instance 90 minutes for the whole game plus 30 seconds per move. Rapid chess is common at 15 minutes plus 10 seconds. Blitz sits at 3 minutes plus 2 seconds. These three modes are not three versions of the same sport. They are three different sports sharing one board.

In classical chess, an advantage worth roughly a pawn can be held and converted across thirty moves. In blitz, that same advantage can evaporate within six moves, and usually evaporates for reasons that have nothing to do with chess knowledge. That is why judging a player solely by blitz rating is a common error. Blitz rating measures reflexes, pattern memory and tolerance for time pressure. Classical rating measures depth of calculation and quality of preparation. Two players can be level in one column and a hundred points apart in the other.

A time log tells us more still. It shows how many minutes a player spends on move fifteen, move twenty-five and move thirty-five. It shows who starts thinking slowly from which move. It shows how much time remains entering move forty in an endgame, the point where most events apply a time increment.

I call that indicator clock congestion. A player with high clock congestion tends to play on intuition early and drift late. A player with low clock congestion tends to prepare openings thoroughly but collapse when the position leaves theory. Without clock logs, all we can do is guess, and my trade has guessed far too often.

There is one small detail I still remember after a national championship held in central Vietnam. A young player, having won the most important game of his career to that point, sat alone at the board for another seventeen minutes. Not to analyse. He simply placed both hands on the table and looked at the lone black king. The cameras had long been switched off. The organisers were dismantling the signage. Nobody recorded those seventeen minutes, just as nobody recorded a single move of that game. I stood in the corner of the hall and told myself: this is what no data file will ever contain. Then I answered myself: but precisely because no data file exists, I am forced to tell this story instead of analysing the game.

In decisive rounds, usually from round nine to round eleven of a round-robin or the closing rounds of a Swiss system, physical pressure starts to show. That is when metrics become most valuable and least available. An eleven-day event with one classical game a day, plus rapid and blitz on the rest day, produces a form of cumulative decline that none of our instruments capture. I once sat beside a coach during round ten. He told me one short sentence: today do not say anything about chess knowledge, just watch his eyes. He was right. The player lost on move thirty-two after playing a flawless opening. He did not lose because of chess.

Three hubs and the age-twelve threshold

Vietnamese chess operates around three main hubs: Hanoi, Ho Chi Minh City and Da Nang, alongside a few provinces with their own traditions, including Can Tho, Bac Giang and a handful of northern provinces. These hubs differ not only in the number of players but in selection structures, coaching resources and competitive culture.

What I have observed over many years is a threshold I call the age-twelve line. If a young player passes through ages twelve and thirteen without reaching the region of two thousand rating points, the percentage chance of progressing to the International Grandmaster title drops very quickly. I avoid absolute language, because chess has late bloomers. But my observational statistics show that most players who crossed 2500 over the past two decades were already in the two-thousand region before turning fourteen.

This threshold means very different things in the three hubs. At well-resourced clubs, a child who has not reached two thousand at thirteen still has a path: a personal coach, funding for international events, a dense calendar to accumulate experience. In less-resourced provinces, that marker is close to a door closing, not because of ability but because the road ends.

Based on my experience covering youth events over many years, what separates the players who pass this threshold from those who stop is usually not calculating power. Those who stop are often faster and more decisive calculators in the early stage of their careers. Those who go far are usually the ones who learn to sit still in a bad position.

That is a very hard skill to teach and no metric measures it directly. In chess people talk about technique, about openings, about endgames. Few talk about the ability to endure a bad position for forty moves without panicking. I believe this is the single biggest differentiator at the highest level, and also the thing data, however complete, describes worst.

The second difficulty in the development system is its extreme personalisation. A good coach can train three or four successive generations, each linked to the next by a direct teacher-student relationship. But when that teacher stops, an entire region can fall silent for nearly a decade. This is a fragile structure, because it depends on people rather than systems. What gets handed down is usually experience stored in a head, not in a database. And experience in a head cannot be multiplied exponentially.

ACPL, machines and the trap of easy measurement

Since chess engines became ubiquitous, analysis gained a powerful instrument: average centipawn loss, known as ACPL. It measures the gap between the move a player chose and the move the engine rates best, averaged across the whole game.

It is a useful metric, but widely overused. A low average loss does not mean good play, and a high average loss does not mean bad play, because the metric only captures deviation from the engine, not the fact that a player may deliberately steer the game into a position where the opponent is least comfortable. A player who accepts losing half a pawn in exchange for a structure that forces the opponent to think will record a higher loss figure than someone who plays the engine line and draws on move twenty.

There is a deeper issue. Since powerful engines such as Stockfish and open-source projects such as Leela Chess Zero became widespread, the gap in opening quality between elite players has narrowed considerably. Lines that were once secret have become common property, searchable in seconds. The publication of AlphaZero's results in December 2026, learning chess from the rules alone, marked a milestone in how the community understands the opening as no longer the decisive battlefield.

The result is that competitive advantage has shifted into poorly measured territory: handling complex middlegames, converting small endgame advantages, time management, stamina and psychology. These are precisely the areas existing metrics describe worst. The analysis trade is caught in a paradox: we measure better than ever the things that matter less, and worse than ever the things that matter most.

In that context, an analysis table returning seventeen empty boxes is no longer a technical glitch. It is a diagnosis. We lack data exactly where outcomes are decided, and we have surplus data exactly where it is only used to decorate a bulletin.

The blind spot: when memory inflates too

This is where I want to go against the habit of both myself and most of my colleagues.

Our instinct when data is missing is to demand more data. Open the PGN archive, save clock logs, digitise every event. Those demands are right, and I support them. But there is a blind spot we rarely mention: in a sport short of data, what gets produced to fill the gap is not truth but myth. And myth inflates too, exactly like the rating of a national system with few internationally rated games.

We remember the medal and forget the process. We remember the champion and forget the player who finished fourth with seven unbeaten games, five of them with black against stronger opponents. The collective memory of Vietnamese chess behaves much like an inflated rating list: big names gain points on every mention, small names lose points on every silence.

The second blind spot is granting a title to a person permanently. When a player has once been champion, every later result is read through that lens. A defeat for a champion becomes a sign of decline. A win for someone who has never won becomes a sign of rebellion. We are not reading games. We are reading résumés.

The third blind spot, and perhaps the most serious, is that we worship tools instead of questions. A table with seventeen empty boxes is less shameful than a table with every box filled that answers none of the reader's questions. I have seen reports running to dozens of pages full of charts, and by the final page the reader still does not know how that player should play move twenty in the next round.

Modric's tears did not belong to Croatia; they belonged to anyone who has lost enough to understand. I once used that line to say that emotion in sport has no borders. After many years I realised it carries a second, more uncomfortable meaning: emotion spreads easily, and because it spreads easily it often substitutes for understanding. A piece that makes people cry does not necessarily make them understand. I have been in this trade long enough to know the difference, and honest enough to admit I have abused it.

Seventeen boxes, and what I will write next

A mistake in front of a microphone taught me that perfection is only a draft of sincerity. In 2026, as a student intern in Da Nang, I was assigned to commentate a youth international match at Hoa Xuan stadium and mispronounced the opposing striker's name three times in a row. I was so ashamed I did not open the central Vietnam supporters' group for three days. But I did not quit. I spent a full month rewatching footage of the entire tournament and transcribing every name correctly. By the end I knew nearly two hundred players by name.

The lesson that year seemed to be about pronunciation. In fact it was about structure. I began carrying two notebooks: one for verified facts, one for personal feeling. When I write, I never let the two lines blur carelessly. Facts must stand firm before emotion is allowed to speak.

The seventeen empty boxes on that March night were my first notebook, left entirely blank. I kept the page. It sits in a drawer above some old journals, and I take it out whenever someone asks me a specific question I cannot answer.

Vietnamese chess does not lack good stories. It has a player who won a world blitz title, a boy from Can Tho who became world under-10 champion in 2026, women who won national titles repeatedly and competed internationally for years, and a street chess community in Saigon and Hanoi playing on pavements from morning to night. What it lacks is something far duller: an archive good enough that the stories of those people exist independently of the memory of a few people inside the industry.

Sport does not promise victory; it promises only a heartbeat willing to continue. For my writing, that heartbeat lies in answering one more specific reader question each year, with one specific fact, rather than with a better sentence. I will start with the smallest things: saving the PGN file of every game I witness, noting the time remaining on the clock at move forty, noting exactly how it feels when a player stands up from the board and walks alone into the corridor. The two notebooks stay side by side, but the first must grow thicker first.

The season is passing round by round, and each round leaves traces that could be recorded. What I want to ask myself, and to ask anyone reading this with the same patience, is this: if in ten years someone wants to know how a Vietnamese player handled the decisive game of a career, will they find it in a data file, or only in the memory of a person who sat in the corner of the hall and did not manage to press record?