Ruy Lopez: Berlin Defense, Rio Gambit Accepted: what should White play?

In the Ruy Lopez: Berlin Defense, Rio Gambit Accepted, White has several viable options to maintain pressure in the center. The primary options according to engine evaluation are Nxe5 (eval +0.42) and d4 (eval +0.40), with Nxe5 standing as the most popular choice, played in 50.3% of the 218,695 recorded games. Both moves actively target the central tension created by Black's uncastled e8 and the open e-file.

Reclaiming the Center with Nxe5

The most frequent choice, Nxe5, immediately recovers material while keeping active pressure along the e-file opposite Black's monarch. In the database, White scores 60.0% from this position across 110K recorded games. An illustrative engine continuation runs Nxe5 Be7 d4 O-O Ba4 Na5, where White establishes a presence on d4 while Black coordinates their minor pieces and completes kingside development.

The Dynamic Central Break d4

Chosen in 7.5% of games (16K recorded), d4 challenges Black's center directly and yields a 64.5% score for White. Rather than immediately recapturing on e5, this thrust opens lines for White's queenside pieces. An illustrative continuation follows d4 e4 d5 Bb4 c3 Be7, transposing into sharp maneuvering where the advanced pawn on d5 gains space against Black's queenside.

Structural Clarification via Bxc6

White also frequently chooses Bxc6, appearing in 40.8% of recorded games (89K games) with an engine evaluation of -0.11 and a White score of 66.1%. This move clarifies the central tension by removing the defender of e5 at the cost of the bishop pair. A standard continuation shows Bxc6 dxc6 Nxe5 Be6 Qe2 Qd6, leading into a balanced position where Black accepts doubled c-pawns in exchange for open diagonals. Lesser-played alternatives include Nc3 (1.4%) and Qe2 (0.1%).