King's Pawn Game: Busch-Gass Gambit: what should White play?

In the King's Pawn Game: Busch-Gass Gambit (ECO C40), White's strongest theoretical continuation is Nxe5, accepting the central pawn to challenge Black's early bishop development. Although Bc4 is chosen far more frequently, capturing on e5 yields an engine evaluation of +1.85, giving White a clear objective advantage. White claims the center immediately, scoring 55.2% across more than 4.33 million recorded encounters.

The Refutation of the Gambit

By playing Nxe5, White directly punishes Black's early deviation, winning material while maintaining solid control over the board. This move appears in 20.7% of games in the database. An illustrative continuation runs Nxe5 Nc6 Nxc6 dxc6 c3 Qe7, where White swaps knights to neutralize Black's development before establishing a pawn on c3. Black struggles to demonstrate compensation for the lost central pawn against precise defense.

Alternative Approaches

Despite the objective strength of capturing the pawn, Bc4 is the most popular choice, played in 54.5% of games (over 11 million recorded). This developing move transposes toward standard Italian Game structures, carrying an engine evaluation of +0.16 and a 53.3% score for White through lines such as Bc4 Nc6 c3 Nf6 d3 d6.

Other viable setups include c3 (eval +0.54, 9.0% popularity, 55.2% score) and Nc3 (eval +0.34, 14.9% popularity, 52.9% score). Less commonly, White selects Be2, seen in 1.0% of games with an evaluation of +0.18. While these alternatives retain a stable position, none match the decisive numerical advantage offered by Nxe5.