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A total of seven chess players have been the chess world number one on the official FIDE rating list since it was first published in July 1971.〔(History of Elo ratings 1971-2001 ), OlimpBase〕 The first world number one, in July 1971, was Bobby Fischer. In January 1976 Anatoly Karpov became the highest-rated player on the FIDE list, FIDE having dropped Fischer (whose rating was higher than Karpov's) from the list due to inactivity. In January 1984, the third world number one was Garry Kasparov. Anatoly Karpov briefly held the world number one ranking in July 1985, and the fourth world number one, Vladimir Kramnik, briefly held the ranking in January 1996. Other than these two brief periods, Kasparov dominated for some 22 years from 1984 until his retirement from professional chess on 10 March 2005. In January 1990, he surpassed Fischer's peak of 2785 and became the first player ever to achieve a 2800 rating. In July 1999, he reached his peak rating, 2851. This was the highest FIDE rating in history until January 2013, when it was surpassed by Magnus Carlsen. On Kasparov's retirement, the world number one ranking passed to Veselin Topalov, since Kasparov was removed from the rating list in April 2006 due to inactivity. In April 2007, Viswanathan Anand became the sixth player to top the rankings.〔(FIDE January 2007 Rating List: Top 100 ), The Week In Chess〕 Kramnik briefly returned to the number one ranking in January 2008, but was again joint number one by rating, being placed first in the list due to having played more games in the rating period in question. For most of the period April 2007 to November 2009, the top ranking was held by either Anand or Topalov. The seventh and current world number one is Magnus Carlsen, who first achieved this ranking in the January 2010 list, and has been world number one since July 2011 after having lost and reclaimed the position from Anand during 2010 and 2011. ==List of world number ones== The following is a list of the players ranked number one on the FIDE rating system from the first unofficial list in June 1967 to the present day, along with their ratings during the periods in question. ImageSize = width:800 height:auto barincrement:30 PlotArea = left:100 bottom:60 top:0 right:10 Alignbars = justify DateFormat = dd/mm/yyyy Period = from:01/01/1971 till:31/12/2015 TimeAxis = orientation:horizontal format:yyyy Legend = orientation:vertical position:bottom columns:1 ScaleMajor = increment:2 start:1971 ScaleMinor = increment:1 start:1972 Colors = id:ussr value:red legend:USSR id:russia value:yellow legend:Russia id:bulgaria value:green legend:Bulgaria id:india value:orange legend:India id:usa value:blue legend:USA id:norway value:black legend:Norway LineData = at:01/01/1975 color:black layer:back at:01/01/1985 color:black layer:back at:01/01/1995 color:black layer:back at:01/01/2005 color:black layer:back at:01/01/2015 color:black layer:back at:01/01/1980 color:black layer:back at:01/01/1990 color:black layer:back at:01/01/2000 color:black layer:back at:01/01/2010 color:black layer:back BarData = bar:Kasparov text:"Garry Kasparov" bar:Karpov text:"Anatoly Karpov" bar:Fischer text:"Bobby Fischer" bar:Topalov text:"Veselin Topalov" bar:Anand text:"Viswanathan Anand" bar:Carlsen text:"Magnus Carlsen" bar:Kramnik text:"Vladimir Kramnik" PlotData= width:10 textcolor:black align:left anchor:from shift:(10,-4) bar:Fischer from:01/07/1971 till:01/01/1976 color:usa bar:Karpov from:01/01/1976 till:01/01/1984 color:ussr bar:Karpov from:01/07/1985 till:01/01/1986 color:ussr bar:Kasparov from:01/01/1984 till:01/07/1985 color:ussr bar:Kasparov from:01/01/1986 till:08/12/1991 color:ussr bar:Kasparov from:09/12/1991 till:01/01/1996 color:russia bar:Kasparov from:01/07/1996 till:01/04/2006 color:russia bar:Topalov from:01/04/2006 till:01/04/2007 color:bulgaria bar:Topalov from:01/10/2008 till:01/01/2010 color:bulgaria bar:Anand from:01/04/2007 till:01/01/2008 color:india bar:Anand from:01/04/2008 till:01/10/2008 color:india bar:Anand from:01/11/2010 till:01/01/2011 color:india bar:Anand from:01/03/2011 till:01/07/2011 color:india bar:Kramnik from:01/01/1996 till:01/07/1996 color:russia bar:Kramnik from:01/01/2008 till:01/04/2008 color:russia bar:Carlsen from:01/01/2010 till:01/11/2010 color:norway bar:Carlsen from:01/01/2011 till:01/03/2011 color:norway bar:Carlsen from:01/07/2011 till:end color:norway 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「List of FIDE chess world number ones」の詳細全文を読む スポンサード リンク
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