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The Catalan is a chess opening where White adopts a combination of the Queen's Gambit and Réti Opening: White plays d4 and c4 and fianchettoes the white bishop on g2. A common opening sequence is 1.d4 Nf6 2.c4 e6 3.g3, although the opening can arise from a large number of move orders (see transposition). ECO codes E01–E09 are for lines with 1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2, and others are part of E00. Black has two main approaches to choose between: in the Open Catalan he plays ...dxc4 and can either try to hold on to the pawn with ...b5 or give it back for extra time to free his game. In the Closed Catalan, Black does not capture on c4; his game can be somewhat cramped for a while, but is quite solid. ==History== The Catalan derives its name from Catalonia, after tournament organisers at the 1929 Barcelona tournament asked Savielly Tartakower to create a new variation in homage to the area's chess history. It had been played a few times before Tartakower's usage in the tournament, however: Réti–Leonhardt, Berlin 1928, for instance, transposed into an Open Catalan. The Catalan came to prominence at the top level when both Garry Kasparov and Viktor Korchnoi played it in their Candidates Semifinal match (part of the process to determine who would challenge world champion Anatoly Karpov for the title) in London in 1983: five games of the eleven-game match were Catalans. In 2004, Ruben Felgaer won a tournament celebrating the 75th anniversary of Barcelona 1929 and the birth of the Catalan Opening, ahead of Grandmasters Viktor Korchnoi, Mihail Marin, Lluis Comas and Viktor Moskalenko and International Master Manel Granados. Each game in the tournament, which was also held in Barcelona, began with the moves 1.d4 d5 2.c4 e6 3.g3 Nf6. With its use by Vladimir Kramnik, the Catalan has recently gained a good deal of attention by high-level GMs. Kramnik played the opening three times in the World Chess Championship 2006. The Catalan was also played four times by Viswanathan Anand in the World Chess Championship 2010; in both instances the opponent was Veselin Topalov, and in each instance White scored two more points than Black. 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「Catalan Opening」の詳細全文を読む スポンサード リンク
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