ECO code: A00
Benko Opening arises after the moves: 1. g3 e5 2. a3 d5 3. Nf3 e4.
This opening is characterized by White's early flank moves (g3 and a3), aiming for a fianchetto of the bishop and preventing Black's pieces from easily advancing on the queenside. Black responds aggressively in the center with ...d5 and ...e4, pushing White's knight and claiming space.
From White's perspective, the setup is somewhat positional and flexible, preparing to fianchetto the bishop and control key dark squares. Black's moves are attacking, challenging White's center and gaining space with the pawn thrust ...e4.
This opening clearly involves a struggle for central control, with Black actively contesting the center early on. White's moves, however, focus more on controlling key squares from the flanks rather than direct central occupation.
This opening is defined by the position shown on the board below. The moves displayed are a typical sequence that leads to it, but different sequences can reach the same position and still carry the same opening name.