ECO code: A07
Reti Opening: King's Indian Attack with Bg7 and 4.O-O
Moves: 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O
FEN: rnbqk1nr/ppp1ppbp/6p1/3p4/8/5NP1/PPPPPPBP/RNBQ1RK1 b kq - 3 4
This variation of the Reti Opening features a fianchettoed bishop on g2 and early castling by White. The characteristic move 4.O-O solidifies White's king safety and prepares for flexible central or flank play. By delaying direct central pawn moves, White emphasizes piece development and control over key squares rather than immediate occupation of the center.
From White's perspective, this setup is primarily positional and flexible, with potential for both attack and defense depending on how the center and wings develop. It is generally more strategic than aggressively attacking at this stage, focusing on controlling important squares and preparing for central breakthroughs later.
Regarding central control, White does not immediately challenge Black's center with pawns but exerts indirect pressure through piece placement. Black, having played ...d5 and ...g6, stakes a claim in the center and prepares a kingside fianchetto, so this opening leads to a subtle battle over the center rather than a direct confrontation.
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.