English Opening: Symmetrical Variation, Mecking Variation

The English Opening: Symmetrical Variation, Mecking Variation is a chess opening classified under ECO code A39 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 7 moves: 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4. The resulting position leaves black to move.