Alapin's Opening arises after 1.e4 e5 2.Ne2. ECO code: C20.

Named after Semyon Alapin. White develops the knight to e2 rather than f3, preserving the option of f4 (King's Gambit-like) without blocking the f-pawn. The knight on e2 is less actively placed than on f3 but avoids some pin motifs (...Bg4). The opening is playable but uncommon at the top level.