About this opening
Vienna Game: Vienna Gambit, Main Line is an opening in the Encyclopedia of Chess Openings,
classified under code C29. ECO group C (C00–C99)
covers open games (1.e4 e5) and the French Defence, including the Ruy Lopez, Italian, Scotch and King's Gambit. This particular variation is reached
after 6 half-moves from the
starting position, with the move sequence 1. e4 e5 2. Nc3 Nf6 3. f4 d5.
It belongs to the Vienna Game family.
Within that family this is a level-2 branch (the Vienna Gambit → Main Line line). The immediate parent line is Vienna Game: Vienna Gambit, transitioned via 3…d5.
The opening sequence in prose form: 1.e4 e5, 2.Nc3 Nf6, 3.f4 d5. From this position the encyclopaedia records no further canonical continuations — practical play branches into unnamed transpositions or returns to the parent line for alternative ideas.