ECO code: A05
King's Indian Attack: Symmetrical Defense arises after the moves 1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 O-O 5. Bg2 d6. This setup features a fianchettoed bishop for White on b2, mirroring Black’s kingside fianchetto, leading to a symmetrical pawn and piece structure.
Characteristic: The move 3.b3 is somewhat uncommon in the King's Indian Attack and aims to develop the light-squared bishop outside the pawn chain before committing the central pawns. It supports control over the central dark squares, especially aiming at e5, and prepares for flexible central breaks later.
Attacking or Defensive: From White’s perspective, this setup is generally flexible and can be both defensive and attacking. White maintains a solid and harmonious position, often waiting for the right moment to challenge the center or launch a kingside initiative. Black’s symmetrical setup is solid and usually more defensive, focusing on maintaining a strong pawn structure and piece coordination.
Center Control: This opening does not immediately contest the center with pawns but exerts influence through piece control and fianchettoed bishops. Both sides delay direct central pawn tension, aiming instead for gradual buildup and strategic maneuvering.
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.
Practice puzzles and train your tactics with real positions from games that used the King's Indian Attack: Symmetrical Defense 3.b3 Bg7 4.Bb2 O-O 5.Bg2 d6, and sharpen your opening mastery.
Puzzle 1 of 2 - Move #9 white