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The Benoni Defense is an opening characterized by the moves: :1. d4 Nf6 :2. c4 c5 :3. d5 Black can then sacrifice a pawn by 3...b5 (the Benko Gambit), but if Black does not elect this line then 3...e6 is the most common move (though 3...d6 or 3...g6 are also seen, typically leading to main lines). ==Etymology== "Ben oni" (בֶּן אוֹנִי) is a Hebrew term meaning "son of my sorrow" (cf. Genesis 35:18) – the name of an 1825 manuscript about this opening.〔"Whenever I felt in a sorrowful mood and wanted to take refuge from melancholy, I sat over a chessboard, for one or two hours according to circumstances. Thus this book came into being, and its name, Ben-Oni, 'Son of Sadness,' should indicate its origin." (Aaron Reinganum, ''Ben-oni oder die Vertheidigungen die Gambitzüg im Schach'' (of sorrow, or Gambit Defenses in Chess ). Frankfort am Main, Germany, 1825)〕 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「Benoni Defense」の詳細全文を読む スポンサード リンク
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