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In chess, the Sicilian Defence, Alapin Variation is a response to the Sicilian Defence characterised by the moves: :1. e4 c5 :2. c3 It is named after the Russian master Semyon Alapin (1856–1923). For many years it was not held in high regard, since 2...d5 was thought to allow Black easy equality.〔Siegbert Tarrasch wrote, using descriptive chess notation, "To 2.P-QB3? Black can advantageously reply with 2...P-Q4!." Siegbert Tarrasch, ''The Game of Chess'', David McKay, 1938, p. 322. ISBN 978-1-880673-94-2 (1994 Hays Publishing edition).〕〔Walter Korn, much like Tarrasch, dismissed the Alapin with "2...P-Q4!=." Walter Korn, ''Modern Chess Openings'', 11th Edition (commonly referred to as MCO-11), Pitman Publishing, 1972, p. 148. ISBN 0-273-41845-9.〕 Today, the Alapin is considered one of the most solid and respectable Anti-Sicilians and is championed by grandmasters such as Evgeny Sveshnikov, Eduardas Rozentalis, Sergei Tiviakov and Drazen Sermek. It has been played by World Champions Viswanathan Anand, Garry Kasparov, Anatoly Karpov, Veselin Topalov and Vladimir Kramnik. The Alapin is also sometimes seen in deferred form, particularly if Black chooses an unusual second move after 2.Nf3. For example, after 2.Nf3 a6 or 2.Nf3 Qc7, 3.c3 is often seen, since neither ...a6 nor ...Qc7 are particularly useful moves against the Alapin. ==Main variations== 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「Sicilian Defence, Alapin Variation」の詳細全文を読む スポンサード リンク
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