Réti Opening: what to play after Nf3?

In the Réti Opening (ECO A09), Black faces an immediate central challenge against the d5 pawn. The engine's top recommendation is the spatial advance d4, which claims central territory and holds a -0.13 evaluation across 1.88M recorded games (20.8% of appearances). By pushing forward, Black avoids early concessions and directly disrupts White's intended piece coordination.

Space Gain with d4

Choosing d4 allows Black to seize space in White's territory and restrict natural developing squares for the queenside pieces. In recorded games from this position, White scores 54.6% after this push. The primary engine continuation develops into a flank confrontation via d4 b4 c5 Bb2 Nf6 g3, where White attacks from the wings while Black establishes a solid central foothold.

Accepting the Pawn with dxc4

The most frequent continuation in the database is dxc4, chosen in 29.3% of games (2.64M recorded). Despite its frequency, the computer assesses this capture at +0.21, and White achieves a 58.0% scoring rate following the sample line dxc4 e3 Nf6 Bxc4 a6 d4. By resolving the central tension immediately, Black permits White to recapture smoothly and establish a classic pawn presence on d4.

Solid Alternatives: e6 and c6

Defenders often prefer to bolster d5 rather than advance or capture. The move e6 appears in 16.3% of games (1.47M recorded) with a +0.21 evaluation and a 54.3% White score, illustrated by e6 d4 Nf6 Nc3 Nbd7 Bf4. Similarly, c6 is chosen in 20.5% of encounters (1.85M recorded), scoring 53.8% for White with a +0.23 evaluation in the line c6 d4 Nf6 Nc3 e6 Bg5. Meanwhile, the natural developing move Nf6 is played in 13.1% of games (1.18M recorded), evaluated at +0.54 with White scoring 56.5% after Nf6 cxd5 c6 dxc6 Nxc6 d4.