Scotch Game: what to play after Nxd4?

In the Scotch Game (ECO C45), Black faces an immediate central confrontation and achieves full equality with Nf6, the top engine recommendation with an evaluation of +0.00. Chosen in 13.9% of the 4,149,574 recorded games (576K recorded), this counterattacking move targets the undefended e4 pawn rather than contesting d4. While the classical Bc5 remains the most popular human choice at 24.4% of games (1.01M recorded), Nf6 provides direct pressure that neutralizes White's early initiative.

Counterattack with Nf6

By playing Nf6, Black develops a piece with tempo against the e4 pawn. An illustrative engine continuation runs Nf6 Nxc6 bxc6 Nc3 Bb4 Bd3, where White trades knights and defends e4 before Black pins the knight on c3. This setup allows Black rapid piece activity and an immediate stake in the center, accounting for the solid +0.00 evaluation.

Classical Development with Bc5

The alternative Bc5 focuses directly on the centralized d4 knight and holds an engine evaluation of +0.17. Play often continues along the illustrative line Bc5 Be3 Qf6 c3 Nge7 Bc4, leading to complex piece play where both sides reinforce the d4 outpost. This classical path offers dynamic counterplay and remains a cornerstone of Black's repertoire in the Scotch Game.

Sidelines and Minor Alternatives

Other continuations occur with lower frequency. The queen sortie Qf6 appears in 4.8% of games (201K recorded, eval +0.30) and prompts the illustrative reply Qf6 Nf3 Bb4+ c3 Bc5 Be2. Direct central action via d5 occurs in 1.2% of games (48K recorded, eval +0.43), leading into d5 Nxc6 bxc6 exd5 Nf6 dxc6. Less frequent tries include Bb4+ (eval +0.45) and the passive Be7, seen in 0.7% of games (28K recorded).