The Keres Defense arises from the Nimzo-Indian Defense and is characterized by Black's early fianchetto of the bishop on b4, aiming to exert pressure on White's center while preparing to challenge the d4 pawn. Key ideas include maintaining flexibility in pawn structure, with potential pawn breaks like ...c5 or ...d5 to counter White's center, and utilizing the light-squared bishop as an active piece. This opening appeals to players who enjoy dynamic play and are comfortable navigating complex positions, as it often leads to rich strategic battles with chances for both sides.
The Keres Defense arises from the Nimzo-Indian Defense and is characterized by Black's early fianchetto of the bishop on b4, aiming to exert pressure on White's center while preparing to challenge the d4 pawn.