Achilles-Omega Gambit

The Achilles-Omega Gambit, 1. c4 Nf6 2. e4, advances the king's pawn at once even though the knight on f6 attacks it and nothing defends it. Black most often accepts with 2...Nxe4. Engine analysis gives Black a clear advantage, and Black also scores well in practice. The alternatives 2...e5 and 2...d6 decline the pawn, and 2...d6 has given Black especially good results. The gambit is a rarely played sideline of the Anglo-Indian.