Sicilian Defense: Smith-Morra Gambit: what should White play?

In the Sicilian Defense position arising after Black develops the knight to c6, White's most effective continuation is the central thrust d5. This advance seizes immediate central space and dislodges Black's knight, earning an engine evaluation of +1.70. Across 4,933,477 recorded games, d5 is the dominant choice, played in 50.8% of encounters with White scoring 56.6%.

Space Advantage with d5

Advancing d5 directly confronts the c6 and gains valuable territory in the center. In the engine main line d5 Nb8 f4 g6 Nf3 d6, the knight retreats to its starting square, granting White the initiative to reinforce the center and expand on the kingside. This dynamic edge explains why d5 represents White's highest-scoring and highest-evaluated try from this tabiya.

Pawn Captures and Gambits

White also frequently resolves the tension with dxc5, seen in 18.7% of games (922K recorded) with an evaluation of +0.53 and a 49.8% score. The engine's illustrative line continues dxc5 Nf6 Bd3 Qa5+ Nc3 e6. Alternatively, White can enter the Smith-Morra Gambit structure via c3, which appears in 15.7% of games (775K recorded) and scores 53.8% for White despite a lower engine evaluation of +0.15. The main line for that setup proceeds c3 d5 exd5 Qxd5 Nf3 Nf6.

Developing Alternatives

White can also maintain classical central tension through development. Choosing Nf3 occurs in 14.8% of recorded games (732K recorded), yielding an evaluation of +0.20 and a 51.5% score along Nf3 cxd4 Nxd4 Nf6 Nc3 e5. The related knight development Ne2 rates slightly higher with the engine at +0.23, leading into Ne2 cxd4 Nxd4 Nf6 Nc3 e5, though neither option challenges Black as directly as d5.