ECO code: A08
Opening Name: Reti: King's Indian Attack (KIA) Variation with 2...c5 and 3...g6, 6.Nbd2
Moves: 1. Nf3 d5 2. g3 c5 3. Bg2 g6 4. O-O Bg7 5. d3 Nf6 6. Nbd2
Description: This variation of the Reti Opening blends hypermodern principles with a flexible King's Indian Attack setup. White fianchettoes the kingside bishop early and prepares to control the center indirectly. The move 6.Nbd2 supports central control, especially over the e4 square, and prepares for potential central or kingside expansion.
Characteristic of 6.Nbd2: This knight development is characteristic of a flexible and solid approach, reinforcing White's hold on the center without committing to immediate pawn breaks. It also keeps options open for advancing e4 in the future or maneuvering the knight to better squares.
Attacking or Defensive: From White’s perspective, this setup is primarily positional and flexible, leaning towards a controlled buildup rather than direct early attacks. Black’s moves (c5 and g6) indicate an attempt to challenge White’s center and prepare kingside fianchetto development, aiming for counterplay. Overall, White adopts a somewhat defensive but proactive stance, focusing on solid structure and gradual central control.
Center Control: Although White does not immediately occupy the center with pawns, the opening aims to indirectly control and influence the center through piece placement and prepared pawn breaks. Black challenges the center actively with c5 and d5 pawns, while White’s setup is designed to counter this pressure patiently and flexibly.
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.