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The Marshall Trap is a chess opening in Petrov's Defence named after Frank Marshall. ==The trap== 1. e4 e5 2. Nf3 Nf6 :The trap begins with Black playing Petrov's Defence. 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. 0-0 0-0 8. c4 Bg4 9. cxd5 f5 10. Re1? (see diagram) :White should play 10.Nc3 instead. 10... Bxh2+! :An unexpected blow. 11. Kxh2 Nxf2 :Black forks the white queen and bishop, forcing the queen to move. 12. Qe2 Nxd3 13. Qxd3 Bxf3 14. Qxf3 Qh4+ :Followed by Qxe1 winning the e1-rook. Black has a winning material advantage. 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「Petrov's Defence, Marshall Trap」の詳細全文を読む スポンサード リンク
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