Benoni Defense: Old Benoni: what should White play?

In the Old Benoni Defense, the position reached after the sequence d4 c5 d5 e6 e4 exd5 leaves White with a central pawn tension that is typically resolved by recapturing the pawn. The statistically dominant and engine-preferred response is Qxd4, a move played in 96.5% of the 175,000 recorded games at this position. This recapture allows White to maintain a central presence while preparing for rapid development, resulting in a 54.0% scoring rate for the white pieces.

The Strategic Role of Qxd4

The move Qxd4 is the primary continuation, with an engine evaluation of -0.82. By placing the d4 in the center, White exerts immediate pressure and prepares for the main line Qxd4 Qa5+ b4 e5 bxa5 exd4. Although the queen appears vulnerable to harassment, the tactical complexities often force Black into specific defensive setups. This move accounts for 169,000 of the recorded games, establishing it as the standard theoretical approach in this branch of the Benoni.

Black's Tactical Responses

Black frequently attempts to challenge the centralized queen immediately. The most common response involves Qa5+, seeking to disrupt White's coordination. If White deviates from the main recapture, alternatives such as Nf3 or c3 are significantly less effective. For instance, c3 has been played in only 609 games and carries a lower engine evaluation of -1.97, often leading to lines like c3 dxc3 Nxc3 b5 e3 Bb7 where White's win rate drops to 40.4%.

Risks of Alternative Continuations

Deviating from the central recapture often results in a disadvantageous position for White. The move g3 is extremely rare, appearing in only 80 games, and suffers from a poor win rate of 20.6%. Similarly, Qd2 allows Black to seize the initiative with Qd2 Qb6 c3 Nf6 cxd4 Ne4, where the black pieces quickly become active against the white center. The data suggests that failing to play Qxd4 allows Black to equalize or gain an advantage early in the opening phase.