Nimzowitsch Defense: Scandinavian Variation: what to play after d5?

In the Nimzowitsch Defense: Scandinavian Variation (ECO B00), White's primary and most testing continuation is e5, claiming central space and driving Black into closed or semi-closed structures. Facing the immediate challenge to the e4 pawn, White secures a slight theoretical edge evaluated at +0.39 by pushing forward, while maintaining a 50.8% scoring performance. Alternative approaches include liquidating the tension with exd5 or reinforcing the center via Nc3.

The Advance Variation with e5

The space-gaining thrust e5 is by far White's most frequent choice, selected in 53.9% of games (representing 3.19M recorded encounters). By locking the center, White restricts the natural development of Black's kingside knight and establishes a spatial advantage. An illustrative engine continuation runs e5 Bf5 c3 e6 Nd2 f6, where Black develops the light-squared bishop outside the pawn chain before directly challenging White's central wedge.

Liquidating the Center with exd5

The second most common continuation is exd5, chosen in 31.1% of recorded games (1.84M recorded) and yielding a 50.5% score for White with an engine evaluation of +0.26. Rather than clamping down on space, this exchange opens central files and leads to open piece play. The illustrative variation exd5 Qxd5 Nf3 e5 Nc3 Bb4 demonstrates an immediate tactical sequence where White develops with tempo against the centralized queen while Black counters actively against the c3.

Alternative Structural Approaches

White also retains solid alternatives such as Nc3, played in 13.3% of games (789K recorded) with a +0.14 evaluation and a 50.9% score, leading to sharp lines like Nc3 dxe4 d5 Nb8 Nxe4 c6. Rare sidelines include Bb5, seen in 1.7% of games (99K recorded, evaluated at +0.00), and a3 (-0.18), though both yield less pressure than the main advance.