As Polgar puts it: "Practically from the moment of my birth, I became involved in an educational experiment. Even before I came into the world, my parents had already decided: I would be a chess player."
Laszlo Polgar appeared to prove his point: as a result of his intensive home coaching, all three of his daughters achieved remarkable playing strength at an early age - and Polgar, the third daughter, beat Bobby Fischer's record to become, at 15 years and four months, the youngest person ever to attain the title of international grandmaster.
I visited the Polgars' home in Budapest in the middle of this "experiment", when Polgar was 11. When I asked to play a game of chess against her, she would only do so without sight of the board or pieces. So I stared at her ponytails, while this little girl called out the moves which demolished my position.
As the former United States chess champion Joel Benjamin reported after playing her: "It was all-out war for five hours. I was totally exhausted. She absolutely has a killer instinct."
It may in part be this, rather than what is sometimes called "genius", which has separated the girls from the boys, and made the latter much more successful at chess (Polgar is the only woman who has even got into the official list of the world's top 100: at her peak she was ranked eighth in the world).
The "killer instinct" described by Benjamin is something which most parents tend not to welcome in their daughters, but would positively encourage in a son. Then there is the biological element: chess at the very highest level might seem a purely mental struggle, but in fact it is physically draining: imagine doing five hours of degree-level exams every day for weeks on end, year after year, and you begin to get the point.
So, the weaker sex? There is, of course, a different explanation, put by Polgar's sister Szofia, who gave up the game in 2002 at the age of 28. "It was not that chess was too much for me," she said, "but that it was not enough." By this she meant that she wanted a life that allowed her to be a good mother, and to have hobbies and pastimes - in other words, to enjoy a whole world entirely unconnected to the 64-square struggle.
To some extent that has also been Polgar's experience. Six years ago she started a family, and her world ranking dropped dramatically. As she explained in words which will be painfully familiar to any working mother: "Very shortly after Oliver [her first child] was born I was playing in the world championship ... I wanted to have everything, and it wasn't really possible. I thought I could manage it but 23 months later my daughter Hanna was born and then everything really kind of fell apart ... Obviously I can't blame my kids for the fact that I fell from number 10 to number 50 on the world rating list ... but in every sport, you have to work a lot, you have to focus 100 per cent. But when doing the right thing in family matters, you mathematically have less time."
This helps to explain what Polgar told startled correspondents at the press conference in Khanty-Mansiysk after her elimination from the World Cup.
While regretting her loss to Peter Svidler, she said that "on the other hand, my elimination is great because I can finally get home to my family, to be with my husband and kids". When a male politician accompanies his resignation statement with the classic observation that he wants to spend more time with his family, everyone knows that this is a convenient untruth. Yet when JuditPolgar said that, her face lit up with a genuine smile.
It made me all the sadder that she had lost, if only because it brought home how much she had sacrificed to get as far as she did.
- Independent