English Opening: Symmetrical Variation, Duchamp Variation

The English Opening: Symmetrical Variation, Duchamp Variation is a chess opening classified under ECO code A38 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 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. Nc3 Nc6 7. d3. The resulting position leaves black to move.