About this opening
Center Game: Lanc-Arnold Gambit is an opening in the Encyclopedia of Chess Openings,
classified under code C21. 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 7 half-moves from the
starting position, with the move sequence 1. e4 e5 2. d4 exd4 3. Nf3 Bc5 4. c3.
It belongs to the Center Game family. Within that family this is a sub-variation (the Lanc-Arnold Gambit line).
The opening sequence in prose form: 1.e4 e5, 2.d4 exd4, 3.Nf3 Bc5, 4.c3. From this position exactly one named continuation is recorded in the encyclopaedia.