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The Blumenfeld Gambit is a chess opening characterised by the moves 3...e6 4.Nf3 b5 in the Benoni Defence arising after: :1. d4 Nf6 :2. c4 c5 :3. d5 e6 :4. Nf3 b5 or alternatively: :1. d4 Nf6 :2. c4 e6 :3. Nf3 c5 :4. d5 b5 In fact, as many as 30 different move orders are possible.〔(Opening Report: 1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5 (1914 games) )〕 The ''Encyclopaedia of Chess Openings'' (ECO) sorts the Blumenfeld Gambit under code E10 (1.d4 Nf6 2.c4 e6 3.Nf3). ==General considerations== Black sacrifices a wing pawn to establish an imposing centre with pawns on c5, d5 and e6. The natural development of the bishops to b7 and d6, combined with the open f-file for a rook, tend to facilitate Black's play on the kingside. White, on the other hand, will typically look to counter in the centre by playing e4 at some point, while his additional queenside pawn also offers him some initiative on that side of the board. 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「Blumenfeld Gambit」の詳細全文を読む スポンサード リンク
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