page_title: Bent Larsen
section_title: Challenging for the World title
hierarchical_section_title: Bent Larsen / Career / Challenging for the World title
caption_attribution_description: Nederlands: Collectie / Archief&#160;: Fotocollectie Anefo Reportage / Serie&#160;: [ onbekend ] Beschrijving&#160;: Interzone schaaktoernooi in het GAK, Larsen (Denemarken) tegen L. Portisch (Hongarije) Datum&#160;: 8 juni 1964 Trefwoorden&#160;: SCHAAKTOURNOOIEN Persoonsnaam&#160;: Portisch, Lajos Instellingsnaam&#160;: GAK Fotograaf&#160;: Broers, F.N. / Anefo Auteursrechthebbende&#160;: Nationaal Archief Materiaalsoort&#160;: Negatief (zwart/wit) Nummer archiefinventaris&#160;: bekijk toegang 2.24.01.03 Bestanddeelnummer&#160;: 916-5233
context_page_description: Jørgen Bent Larsen was a Danish chess grandmaster and author. Known for his imaginative and unorthodox style of play, he was the first Western player to pose a serious challenge to the Soviet Union's dominance in chess. He is considered to be the strongest player born in Denmark and the strongest from Scandinavia until the emergence of Magnus Carlsen.
  Larsen was a six-time Danish Champion and a Candidate for the World Chess Championship on four occasions, reaching the semifinal three times. He had multiple wins over all seven World Champions who held the title from 1948 to 1985: Mikhail Botvinnik, Vasily Smyslov, Mikhail Tal, Tigran Petrosian, Boris Spassky, Bobby Fischer, and Anatoly Karpov, but lifetime negative scores against them. On a percentage basis, his best score against a World Champion was with Max Euwe. Larsen and Euwe met over the board only once, at the Munich Olympiad in 1958; the game ended in a draw. From the early 1970s, he divided his year between Las Palmas and Buenos Aires, with his Argentinian-born wife. He suffered from diabetes and died in 2010 from a cerebral haemorrhage.
context_section_description: Around this time Larsen diversified his style, switching over to risky and unusual openings in some of his games, to try to throw his opponents off balance; this led to the recovery of his form and further development of his chess. He finished 2nd at the 1963 Halle Zonal with 13/19, behind winner Lajos Portisch, to advance to the Interzonal the next year. At Belgrade 1964, he shared 5th–6th places with 10/17 (Boris Spassky won). He tied for 5th–7th places at Beverwijk 1964 on 9½/15; Keres and Nei won. Larsen's unusual openings were on full display at the 1964 Amsterdam Interzonal, where he shared the 1st–4th places on 17/23 with Boris Spassky, Tal, and Vasily Smyslov, advancing as a Candidate. 
  In the 1965 Candidates' matches, he defeated Borislav Ivkov at Bled by 5½–2½ but lost a hard-fought semifinal, also at Bled by 4½–5½ to former World Champion Mikhail Tal, who won the tenth game with a complex speculative knight sacrifice in the center. Larsen won a playoff match for alternates, an eventual third-place Candidates' position, against Efim Geller by 5–4 at Copenhagen 1966 (the first time a Soviet grandmaster had ever been beaten by a non-Soviet in a match). In 1967 he won the Sousse Interzonal with the score of 15½/21 after Fischer withdrew; this placed him 1½ points ahead of the field. He then won his first-round match against Lajos Portisch by 5½–4½ at Porec 1968. In Malmö, however, he lost the semifinal by 2½–5½ to Boris Spassky, who went on to win the title.
  In 1970 he shared 2nd in the Palma de Mallorca Interzonal, on 15/23, behind Bobby Fischer. He reached his top rank in the Elo rating system at the start of 1971, equal third in the world (with Korchnoi, behind Fischer and Spassky) with a rating of 2660. He then defeated Wolfgang Uhlmann by 5½–3½ at Las Palmas 1971. But then he lost the semifinal 0–6 at Denver to Fischer, who also went on to win the title. 
  Larsen later claimed that his one-sided loss to Fischer was due in part to his condition during the match: "The organizers chose the wrong time for this match. I was languid with the heat and Fischer was better prepared for such exceptional circumstances... I saw chess pieces through a mist and, thus, my level of playing was not good."
  In 1973 he failed to advance from the Leningrad Interzonal; he tied for 5th–6th places with 10/17, with Karpov and Viktor Korchnoi winning. In 1976 he won the Biel Interzonal, but lost his 1977 Candidates' match, a rematch of their 1968 encounter, to Lajos Portisch by 3½–6½ at Rotterdam. In the Riga Interzonal of 1979, Larsen scored 10/17 for 7th place, and did not advance.
caption: Larsen vs. Portisch (Interzonal 1964)
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