[Opening "Apertura Zukertort"] [ECO "A04 A09"] 1.Nf3 [Opening "Apertura inglesa"] [ECO "A10 A39"] 1.c4 [Opening "Apertura Benko o ungara"] [ECO "A00"] 1.g3 [Opening "Apertura Dunst"] [ECO "A00"] 1.Nc3 [Opening "Apertura pajaro"] [ECO "A02 A03"] 1.f4 [Opening "Apertura Larsen"] [ECO "A01"] 1.b3 [Opening "Apertura Sokolsky"] [ECO "A00"] 1. b4 [Opening "Ataque Grob"] [ECO "A00"] 1. g4
Apertura:
ECO: