ECO code: A00
Grob Opening: Keene Defense (1. g4 d5 2. h3 e5 3. Bg2 c6 4. d4 e4 5. c4 Bd6 6. Nc3)
The Keene Defense is an offbeat variation within the Grob Opening, characterized by Black's early advance ...e5 and subsequent push ...e4, challenging White's center and kingside structure aggressively. White responds with a quick central expansion using 4.d4 and 5.c4, aiming to undermine Black's pawn chain and claim space in the center.
Characteristic: This line features an uncommon and somewhat provocative pawn thrust by Black with ...e4, which attempts to gain space and cramp White's position early. White’s setup with d4 and c4 signals a direct fight for central control and space.
Attacking or Defensive: From White’s perspective, the moves are primarily attacking, as White strives to open lines and dominate the center despite Black’s space grab on the kingside. Black’s play is also attacking, focusing on gaining space and restricting White’s development rather than a purely defensive stance.
Center Control: Yes, this opening involves a direct and dynamic battle for the center. White seeks to establish a strong pawn presence with d4 and c4, while Black challenges and attempts to disrupt White’s center with the advanced ...e4 pawn push and pressure along the d-file and diagonal.
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.