MANUFACTURING
GENIUS

An investigation into the household that set out to prove talent is manufactured — and into what the evidence actually supports once the applause dies down.

Her rating is under 2300, which in this room is close to amateur, and the arbiter seating the field almost certainly filed her away as a curiosity. Over the next nine rounds she will score eight and a half points out of nine, beat a string of grandmasters, sacrifice her queen against one of them, and post a tournament performance above 2900 — a number no player of her age had ever produced in an open event. Chess magazines across Europe will run her face on the cover, and the week will acquire a permanent name: the Sack of Rome.

Her name is Sofia Polgár. And the interesting thing about her is not what she did in Rome. It is that she was not an accident. She was planned — not in the way people plan a child, but in the way a researcher plans an outcome.

To understand how she arrived at that table you have to rewind twenty years and travel a long way from Rome: to a small town in Soviet Transcarpathia, where a woman named Klára is taking a letter out of her postbox.

The letters arrive regularly, and they are strange.

There is nothing in them about her eyes. No promises of eternal devotion, no poetry, not even the ordinary manoeuvres of a man trying to be liked. The man writing them lays out, to a language teacher living in a Hungarian-speaking enclave inside Soviet Ukraine, a research proposal. He claims he can turn any healthy child into a prodigy. What he needs is a wife willing to go into the project with him.

His name is László Polgár, he is a Hungarian educational psychologist, and he arrived at his conclusion by doing something that looks from the outside like harmless eccentricity. He read biographies. Not one, not a dozen — some four hundred lives of exceptional people, from Socrates to Einstein. He was hunting for a common denominator, and he believed he had found it: early, intense specialisation in one particular subject.

Not a spark from above. Not inheritance. Not a mysterious gift you either have or lack. A timetable.

From this he derived the formula that would later become the title of his book and a slap in the face of the entire European tradition of talking about talent. Geniuses are made, not born. Genius is work plus favourable circumstances; the rest is mythology. He set it all out in a volume whose Hungarian title is Nevelj zsenit! — in English, Bring Up Genius!, later circulated in English translation as Raise a Genius!, written as an argument for a hypothesis he had not yet been able to test.

Because the theory had one inconvenient flaw, particularly galling for an experimenter: testing it required children, and he had none. Hence the letters.

The remarkable thing is not that he wrote them. The remarkable thing is that she said yes.

They married in the USSR, Klára moved to Hungary, and the participants arrived on schedule: Zsuzsa in 1969, Zsófia in 1974, Judit a year later. Three girls, three subjects of an experiment they would be taking part in long before anyone explained it to them.

The subject still had to be chosen, and the conversation that settled it — held in a Budapest kitchen — explains more about this story than any of the records that followed.

They considered languages. They considered mathematics. They chose chess, and the choice was cold, almost engineering-minded. Chess combines art, science and sport, but unlike art it produces an objective result measurable over time. A rating does not argue. A crosstable does not care whether the jury liked you, what family you come from, or what the papers say. If a child became one of the strongest players alive, nobody would be able to write it off as the sympathy of experts.

There was a second reason, far more audacious, and it gives away the researcher hiding inside the father. At the time, women made up less than one percent of the world’s leading players. If innate talent is irrelevant, he reasoned, then sex is irrelevant too. He picked the field where his theory would be hardest to defend. He picked it precisely for that reason.

Then the experiment started without him, which is the most human detail in the whole affair.

In 1973 four-year-old Zsuzsa was rummaging through a cabinet, found a chess set, and went quiet over the odd little figures for a long time. Klára, who at that point did not know a single rule of the game, was simply relieved that her restless eldest was absorbed in something, and promised that Papa would teach her that evening.

That evening Papa taught her. The door never closed again.

Or rather — it closed, but from the other side. While the father spent hours with the eldest in the room with the board, the younger two watched through a small window, because they were not allowed in. László saw this and was in no hurry to let them in.

It is worth stopping here, because this single gesture contains more of his method than the thousands of chess books he collected or the card index of games he kept. He was not building a school. He was building scarcity. A child who is kept out wants in more than anything on earth, and when the door finally opens she holds on with both hands. The central teaching instrument in that flat was not the board. It was the fact that the board was not available to everyone, and not straight away.

What followed reads like an industrial novel. Home schooling that included, besides chess, Esperanto, German, Russian, English and advanced mathematics. A rule the father repeated like a mantra: the work had to stay a pleasure rather than a drill, and chess had to settle into their thinking the way a first language settles in.

Socialist Hungary in the 1970s did not see pedagogy here. It saw derangement.

Schooling was compulsory; keeping three children at home for the sake of a board game meant offices, officials, inspections. László had to fight the authorities for the right to teach his daughters at home, and he won that right.

Then came the chess federation, which for years refused to let the sisters travel abroad, afraid the family would not come back. What irritated the functionaries further was that the father made his daughters skip women’s tournaments in order to play stronger men. The logic was merciless and flawless: nobody learns to swim in the shallow end, however comfortable and flattering the shallow end may be.

The break came in 1988, when the federation finally let the family travel to Greece for the Women’s Olympiad. The girls were nineteen, fourteen and twelve. Playing as one team, the three sisters brought Hungary its first victory over the Soviet Union, and wits promptly renamed the country Polgaria.

“It was one of those few things that permanently changes your life,” Zsuzsa said afterwards. Until then the family had collected sceptics and ill-wishers. After it, they were national heroes.

A few months later the fourteen-year-old middle daughter sat down at a table in a Roman hall that smelled of wet wool and cigarettes, and none of the grown men around her understood that they were not facing a gifted girl. They were facing the output of a twenty-year design.

It was the youngest daughter who finished the experiment, and she turned out to be more than her father had planned for.

At twelve, Judit became the youngest player ever to enter the world’s top hundred — number 55 on the FIDE list of January 1989. In 1991 she took the grandmaster title at fifteen years and four months, breaking Bobby Fischer’s record: not the women’s record, the record, and she was younger than Fischer had been when he claimed it. That same year the eldest, Zsuzsa, also became a grandmaster, through the ordinary norms rather than a women’s quota, and from 1996 to 1999 she held the Women’s World Championship.

And then came the thing that the kitchen conversation in Budapest had, if you think about it, been aiming at all along.

Garry Kasparov, the thirteenth world champion, had gone on record with the view that women are by nature not exceptional chess players. In 2002, Judit Polgár beat him.

The rest of the numbers need no commentary. The only woman to cross a rating of 2700, peaking at 2735. The only woman to reach the final stage of a World Championship cycle. The man who had spent the 1960s reading biographies got exactly what he had promised a stranger in a letter.

This is where the story is usually wrapped up: triumph, applause, a moral about the power of upbringing. The problem is that this is precisely where it becomes interesting. Because if you analyse the game properly — the way an adjourned position is analysed — what was proven is not what is printed on the cover.

Start with the sample. There were three participants, and all three were sisters. They are independent of one another neither genetically nor environmentally; there is no control group, and randomisation was never on the table. This is not an experiment in the scientific sense. It is an exceptionally well-documented single case — and, to his credit, László admitted as much himself: the example of his own family, where all three girls are related, cannot carry much weight in the argument about the nature of talent.

Then the parents. The hypothesis about “any healthy child” was tested on the children of a man who had read four hundred biographies, assembled an enormous chess library and kept his own card index of games, and of a woman who taught several languages. What passed down by inheritance and what passed down by timetable cannot be separated inside a single household, even in principle.

The touching legend of the lone father raising three champions at the kitchen table does not survive contact with the record either: professional players were brought in to work with the daughters, among them the Hungarian champion Tibor Flórián. That does not diminish the design. It changes the scale. This was not a home study circle. It was a training system.

And then the most uncomfortable point of all. We know about the Polgárs because it worked. How many families around the world built their lives around a similar plan and produced no grandmaster at all is not recorded anywhere — not because the data would be hard to gather, but because failed experiments do not make magazine covers. We are listening to a witness selected by the outcome itself.

The science this case is usually enlisted to support has cooled considerably as well. The deliberate-practice framework of Anders Ericsson — the source from which popularisers squeezed the famous “10,000 hours” — has been taken apart carefully over the last fifteen years.

A large meta-analysis by Macnamara, Hambrick and Oswald (2014) found that practice accounted for 26 percent of the variance in performance in games, 21 percent in music, 18 percent in sports, 4 percent in education and under 1 percent in professions. A separate reanalysis of chess and music, correcting for measurement error, put the figure at about 34 percent for chess.

In plain language: even in chess, the discipline most hospitable to training, hours at the board explain at best a third of the differences between players. The other two thirds belong to something else — cognitive ability, age at the start, quality of instruction, motivation, resilience after defeat, and things we simply cannot measure yet.

The most eloquent observation of all needs no percentages. Among players who reach master level, accumulated practice ranges from a little over 3,000 hours to more than 23,000. One person needs seven times as long as another to arrive at the same place. No round-numbered rule survives that.

So what did László Polgár actually prove?

Not that any child can be made a genius. He did not prove it and could not have. He proved something more modest and considerably more disturbing: we systematically underestimate the ceiling of what environment can do. Societies explain exceptional results by gift, because gift is convenient — it closes the question and cancels the obligation. If the neighbour’s boy has talent, then there is nothing wrong with mine and nothing for me to do.

The story that began with letters to Transcarpathia politely suggests the reverse. Talent is often not the cause of achievement but its consequence — the consequence of somebody opening a door to a room with a board in it when a child was four, and not closing it for the next ten years.

Five things the experiment did not settle

• 01 Whether the method works on children whose parents are not obsessive researchers.
• 02 How much of the result was inherited from two unusually capable parents.
• 03 What proportion of the outcome belongs to the professional trainers who were hired.
• 04 How many identical attempts failed, since nobody counted them.
• 05 What the same three children would have become in an ordinary school — the one comparison that can never be run.

One question remains that no rating and no meta-analysis can settle.

Three girls lived out a childhood designed before they were born. All three say they were happy, and there is no reason to disbelieve them. But the position cannot be replayed in a different variation: there is no second Judit, raised in an ordinary school, against whom the first could be compared.

Their paths afterwards diverged, and the divergence says more about human beings than any of the records. Zsófia — the one who sacked Rome at fourteen — became a teacher and a painter. Judit left competitive chess in 2014 and remained the world’s top-rated woman for another year after walking away. Zsuzsa moved to the United States and went into coaching.

None of them repeated their father’s experiment on her own children.

This article separates what is documented in the public record (ratings, titles, tournament results, published statements) from what remains contested among researchers (the size of the training effect) and from what cannot be established at all (the counterfactual childhoods of the three sisters). Where a claim is disputed, it is identified as such. Corrections and substantiated objections from readers are welcome and will be published.