Nimzo-Larsen Attack: Modern Variation: what should White play?

In the Modern Variation of the Nimzo-Larsen Attack, White faces a critical decision regarding the tension in the center. The engine's top recommendation is c4, which maintains a near-equal evaluation of +0.04 and has been played in 16.6% of the 149,415 recorded games at this position. This move challenges the d5 pawn immediately and seeks to open lines for the b2:white while contesting the central space occupied by Black's pawns.

The strategic role of c4

The move c4 is the most theoretically sound continuation according to engine analysis. By playing this, White initiates a flank strike against the Black center, often leading to the main line c4 Nf6 c5 Bxc5 Nxe5 O-O. This sequence allows White to trade a wing pawn for a central pawn, creating a dynamic imbalance where White's minor pieces exert significant pressure on the kingside and center.

The popularity of Bxc6+

Despite the engine's preference for central tension, the most frequently played move in the database is Bxc6+, appearing in 20.2% of games (57,000 instances). This move carries an engine evaluation of -0.43, as it voluntarily surrenders the bishop pair. The resulting structures often follow the line Bxc6+ bxc6 c4 dxc4 bxc4 Rb8, where White damages Black's pawn structure at the cost of long-term defensive concessions on the dark squares.

Development alternatives

White may also opt for slower developmental moves such as Nc3 or h3. The move Nc3 has been played in 10.5% of games and typically leads to a central struggle after Nc3 Nf6 d4 exd4 Qxd4 Bd7. Meanwhile, h3 is a prophylactic choice seen in 4.6% of games, intended to prevent any future piece activity on g4 while preparing a solid setup, though it yields a slight advantage to Black with an evaluation of -0.36.