Bogo-Indian Defense: Grünfeld Variation
ECO E11 · Bogo-Indian Defense
The Bogo-Indian Defense: Grünfeld Variation (E11) is a chess opening in the Bogo-Indian Defense family, played by Black. It arises after the moves 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2.
Moves: 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2
About this opening
The Grünfeld Variation (4.Nbd2) blocks the check by interposing the queen's knight rather than the bishop. White thereby keeps the bishop pair intact and prepares e4 or a3 to question the b4 bishop. Black continues with ...O-O, ...d5 or ...b6 as appropriate. It is a flexible answer to the Bogo-Indian that avoids the immediate exchange and keeps more tension in the position.