First move g4

A00 Grob Opening A00 Grob Opening: Grob Gambit A00 Grob Opening: Grob Gambit Fritz Gambit A00 Grob Opening: Romford counter-gambit A00 Grob Opening: Grob Gambit Fritz Gambit Romford Countergambit A00 Grob Opening: Grob Gambit Declined A00 Grob Opening: Grob Gambit Richter-Grob Gambit A00 Grob Opening: Spike attack A00 Short Spike...