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1.g4 d5 2.Bg2 Bxg4 3.c4 d4 4.Bxb7 Nd7 5.Bxa8 Qxa8 · ECO A00
Grob Opening: Grob Gambit, Fritz Gambit, Romford Countergambit is a chess opening that arises after 1.g4 d5 2.Bg2 Bxg4 3.c4 d4 4.Bxb7 Nd7 5.Bxa8 Qxa8. It is classified A00 in the ECO system, and the position after these moves has white to move.
This line is a variation within the Grob Opening family. The strategic ideas above describe the family as a whole; this particular line reaches them by the move order 1.g4 d5 2.Bg2 Bxg4 3.c4 d4 4.Bxb7 Nd7 5.Bxa8 Qxa8.