A37English Opening
Symmetrical Variation
1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3
A37English Opening
Symmetrical Variation, Botvinnik System reversed
1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 e5