About this opening
King's Gambit Declined: Panteldakis Countergambit, Symmetrical Variation is an opening in the Encyclopedia of Chess Openings,
classified under code C30. 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 11 half-moves from the
starting position, with the move sequence 1. e4 e5 2. f4 f5 3. exf5 exf4 4. Nf3 d5 5. d4 Bd6 6. Bd3.
The opening sequence in prose form: 1.e4 e5, 2.f4 f5, 3.exf5 exf4, 4.Nf3 d5, 5.d4 Bd6, 6.Bd3. 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.