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The Black Knights' Tango (also known as the Mexican Defense or Kevitz–Trajkovic Defense) is a chess opening beginning with the moves: :1. d4 Nf6 :2. c4 Nc6 This position can also be reached by transposition, for example 1.c4 Nf6, 1.d4 Nc6, or 1.c4 Nc6. ==History== The opening originated in the 1920s, when it was played by both the Mexican grandmaster Carlos Torre (hence the name "Mexican Defense")〔,(【引用サイトリンク】 title=Fridrich Sämisch vs Carlos Torre-Repeto, Baden-Baden 1925 )〕 and the American master Alexander Kevitz (the "Kevitz" in "Kevitz–Trajkovic Defense"). Torre used it to defeat then-U.S. Chess Champion Frank James Marshall in only seven moves.〔(Frank James Marshall vs Carlos Torre-Repetto, Baden-Baden, 1925 )〕 It was later played by the Yugoslav master Mihailo Trajkovic〔Palliser, p. 10.〕〔Walter Korn, ''Modern Chess Openings'' (9th ed. 1957), Pitman, p. 234 (citing a 1952 game by Trajkovic).〕 and the Soviet grandmaster Anatoly Lutikov.〔Walter Korn, ''Modern Chess Openings'' (12th ed. 1982), David McKay, p. 310. ISBN 0-679-13500-6.〕〔(Czerniak–Lutikov, IBM B 1968 ). Chessgames.com. Retrieved on 2009-03-06.〕〔(Trapl–Lutikov, Warsaw Armies Championship 1969 ). Chessgames.com. Retrieved on 2009-03-06.〕〔(Uhlmann–Lutikov, Sarajevo 1969 ). Chessgames.com. Retrieved on 2009-03-06.〕 After decades of obscurity, the opening was revitalized by International Master Georgi Orlov, who published a booklet and a book about it in 1992 and 1998, respectively. Orlov rechristened the opening the "Black Knights' Tango".〔He explained, "this no-name opening has languished, rarely getting even an honorable mention. I hope to change that by first highlighting the defense with a catchy name. Thus The Black Knights Tango!" Orlov 1992, p. 2. His 1998 book added the apostrophe after "Knights".〕 Since 1992, the opening has been employed by a number of strong grandmasters, including Victor Bologan, Joel Benjamin, Larry Christiansen, and Alex Yermolinsky.〔Palliser, pp. 7, 10.〕 Yermolinsky has even ventured it against Garry Kasparov.〔(【引用サイトリンク】 title=Garry Kasparov vs Alex Yermolinsky, Yerevan Olympiad 1996 )〕 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「Black Knights' Tango」の詳細全文を読む スポンサード リンク
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