Trained in her early years by her sister Susan, who ultimately became Women's World Champion, Judit Polgár was a prodigy from an early age.

The documentary did not include an interview with Polgár as her father required payment.

Going into the last round Polgár needed only a draw to achieve the GM title, but she won her game against GM Tibor Tolnai to win first place with six points in nine games.

In 1993, Polgár defeated former World Champion Boris Spassky ( pictured here in 1984 ) in an exhibition match winning the largest prize money up to that point of her career of $ 110, 000.

Russian GM Evgeny Bareev, at the time ranked eighth in the world, led going into tournament's last round, but was crushed by Polgár in their individual game allowing her to share first.

Anand and Karpov finished first, Ljubojevic third, while Polgár finished in clear fourth with 6½ points from 11 rounds ahead of other strong GMs such as Ivanchuk, Short, Korchnoi and her sister Susan.

Susan Polgár met Bobby with her family and persuaded him to come out of hiding " in a cramped hotel room in a small Yugoslavian village ".

In the summer of 1994, Polgár had the greatest success of her career to that point, when she won the Madrid International in Spain.

Polgár won the double round-robin tournament of four GMs scoring five points in the six games and winning both her games against Short.

In the two years since Polgár became the first woman to ever break into the top 10, her rating had dropped.

In January 2000, Polgár had, for her, a disappointing result in a tournament in Pamplona, Spain, which was won by Nigel Short.

Going into the last round four players, Polgár, Khalifman, Karpov and Gilberto Milos were tied, but Polgár won her game over Braziliam GM Milos while Khalifman and Karpov played against each other in a draw.

However, Polgár drew both her games with Kasparov, the first time in her career she had done this under tournament time controls.

Polgár was able to attack with her rooks on Kasparov's king which was still in the centre of the board and when he was two pawns down, Kasparov resigned.

Always the crowd-pleaser, Polgár roused the hall in her fourth round game against Azerbaijan's Shakhriyar Mamedyarov with a brilliant 12. Nxf7 drawing his king into the center of the board.

By early 2003, Polgár had worked her way back into the top 10 rated players in the world.

In 2003, Polgár scored one of her best results: an undefeated clear second place in the Category 19 Corus chess tournament in Wijk aan Zee, Netherlands, just a half-point behind future World Champion Viswanathan Anand, and a full point ahead of then-world champion Vladimir Kramnik.

In one of her games against Karpov, he blundered, allowing Polgár to utilize a famous, ancient sacrifice first employed by Emanuel Lasker against Bauer in 1889.

In 2004, Polgár took some time off from chess to give birth to her son, Olivér.

Polgár " was unrecognizable in her first-round encounter with Viswanathan Anand ", wrote GM Robert Byrne in his New York Times column, " making more errors than she normally would in a dozen games.

Polgár won two, drew one and lost one and won $ 12, 000 in prize money.

Polgár was playing an endgame of knight against knight and two connected passed pawns of Alexander Grischuk, but she was able to eliminate both pawns.

Concentrating on her two children left Polgár with little time to train and play competitively and her ranking dropped from eighth in 2005 to the mid-50s in 2009.

For example, László Polgár set out to raise his children to be chess players, and all three of his daughters went on to become world-class players ( two of whom are grandmasters ), emphasizing the potency a child's environment can have in determining the pursuits toward which a child's energy will be directed, and showing that an incredible amount of skill can be developed through suitable training.

Her January 2010 FIDE Elo rating was 2614, placing her number two in the world for women's players ( behind Judit Polgár ).

She and her two sisters were part of an educational experiment carried out by their father László Polgár, in an attempt to prove that children could make exceptional achievements if trained in a specialist subject from a very early age.

Their places were taken by the next two players on the FIDE rating list: Peter Svidler and Judit Polgár.

Susan Polgár, the eldest of the sisters, 5½ years older than Sophia and 7 years older than Judit, was the first of the sisters to achieve prominence in chess by winning tournaments and by 1986 she was the world's top-rated female chess player.

In recent years, Polgár designed a chess programme for the older students of a kindergarten school in Budapest, Hungary.

All three Polgár sisters competed.

By now numerous books and articles had been written about the Polgár sisters making them famous even outside of the world of chess.

She has attempted to regain the world title but, with the rise of the Chinese women and the formidable Polgár sisters, this has proved difficult and her best performance since 1991 has been 1st in the Tilburg Candidates tournament of 1994, losing the playoff to Zsuzsa Polgár by 5½ – 1½.

* László Polgár ( born 1946 ), Jewish Hungarian chess teacher, father of the Polgár sisters

** The Polgár sisters, three famous chess players who are siblings:

In 1991, Polgár achieved the title of Grandmaster at the age of 15 years and 4 months, the youngest person ever to do so at that time.

Susan Polgár, when she was a 15-year-old International Master, said in 1985 that it was due to this conflict that she had not been awarded the Grandmaster title despite having made the norm eleven times.

In December 1991, Polgár qualified as a Grandmaster by winning the Hungarian National Championship, at the time the youngest ever at 15 years, 5 months to have achieved the title.

* 1991-Judit Polgár becomes the youngest ever Grandmaster, breaking Bobby Fischer's record by about a month.

She is an International Master and Woman Grandmaster, and is the middle sister of Grandmasters Susan and Judit Polgár.

For the first time in twenty years since she lost to her sister Susan, Polgár lost her first classical game to a female player as Women's World champion Hou Yifan won their individual game and tied for first before losing the playoff to Nigel Short.

*** Zsuzsa ( Susan ) Polgár ( born 1969 ), Hungarian-American female chess player

In 2007 she surpassed the rating of 2577 set by Susan Polgar ( often known as Zsuzsa Polgár ) to become the second-highest ranked female player in history.