ECO code: A04
Opening Name: Reti: 1...c5 4.O-O
Moves: 1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. O-O
Description: This variation of the Reti Opening features a hypermodern approach where both sides fianchetto their kingside bishops. White’s 4.O-O safely castles, preparing to exert long-term pressure on the center and key diagonals rather than occupying it immediately. Black’s early ...c5 challenges White’s control of the d4 square and aims for counterplay on the queenside.
Characteristic: The defining characteristic of this line is the double fianchetto setup, emphasizing control over the center with pieces rather than pawns. White delays direct central occupation, focusing on flexibility and piece development.
Attacking or Defensive: From White’s perspective, this setup is more positional and flexible than outright attacking or defensive, aiming to control key squares and respond dynamically. Black’s ...c5 is somewhat aggressive, aiming to challenge White’s influence on the center and gain queenside activity.
Center Control: This opening does not immediately occupy the center with pawns but contests it indirectly through piece pressure and pawn breaks. White relies on controlling central squares from a distance, while Black challenges the center with ...c5.
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 Reti: 1...c5 4.O-O, and sharpen your opening mastery.
Puzzle 1 of 1 - Move #9 white