English Opening: Symmetrical Variation, Rubinstein Variation

The English Opening: Symmetrical Variation, Rubinstein Variation is a chess opening classified under ECO code A34 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 5 moves: 1. c4 Nf6 2. Nc3 c5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7. The resulting position leaves white to move.