English Opening: Symmetrical Variation, Hedgehog Defense

The English Opening: Symmetrical Variation, Hedgehog Defense is a chess opening classified under ECO code A30 in the Flank Openings family, characterized by moves like 1.c4, 1.Nf3, or 1.f4, aiming to control the center indirectly. It is reached after 6 moves: 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4. g3 b6 5. Bg2 Bb7 6. O-O Be7. The resulting position leaves white to move.