ECO C78

ECO C00–C99 — Open Games and the French Defense: 1.e4 e6 and 1.e4 e5, from the Italian and Ruy Lopez to the King's Gambit.

7 named opening lines are classified under ECO code C78.

• Ruy Lopez: Brix Variation — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O g6
• Ruy Lopez: Central Countergambit — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O d5
• Ruy Lopez: Morphy Defense, Arkhangelsk Variation — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7
• Ruy Lopez: Morphy Defense, Møller Variation — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Bc5
• Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bc5
• Ruy Lopez: Morphy Defense, Wing Attack — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Be7 7.a4
• Ruy Lopez: Rabinovich Variation — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 d6 7.Ng5 d5 8.exd5 Nd4 9.Re1 Bc5 10.Rxe5+ Kf8