Saragossa Opening: what should White play?

In the Saragossa Opening, White's most direct and statistically popular continuation is d4, staking a claim in the center and reinforcing the pawn on c3. Occurring in 59.0% of recorded games (1.75M recorded), d4 scores 51.4% for White and yields an engine evaluation of +0.05. It allows White to achieve standard Queen's Pawn structures with solid support already established on the queenside.

Strategic aims with d4 and Nf3

Advancing with d4 transposes the game toward Queen's Pawn systems, where the c3 pawn acts as an early anchor for the central presence. A flexible developmental alternative is Nf3, which also evaluates at +0.05 and scores 50.4% across 173K recorded games (5.8% of the database). White often combines these ideas; for instance, the engine's primary line for d4 develops via d4 Nf6 Nf3 c6 Bf4 Nh5, while Nf3 can lead directly into the identical sequence Nf3 Nf6 d4 c6 Bf4 Nh5.

The passive alternative d3

A significant portion of players choose d3, seen in 35.1% of games (1.04M recorded) with a 51.8% score for White. Despite its popularity, the engine rates d3 slightly lower at -0.26 due to its more passive stance, which can allow Black comfortable central space. The engine provides the continuation d3 Nf6 Nf3 c5 d4 Nc6, showing White eventually pushing forward to d4 after initial delay.

Flank pawn moves

Other minor options include modest flank thrusts such as h3 (evaluating at -0.15) and a3 (evaluating at -0.24). In the engine line h3 e6 d4 Bd6 Nf3 Nf6, White still relies on d4 to secure the center, while a3 e5 d4 Nd7 dxe5 Nxe5 leads to an immediate opening of the central files. Ultimately, direct central control via d4 remains the primary theoretical benchmark.