ECO C50
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.
18 named opening lines are classified under ECO code C50.
- Italian Game — 1.e4 e5 2.Nf3 Nc6 3.Bc4
- Italian Game: Anti-Fried Liver Defense — 1.e4 e5 2.Nf3 Nc6 3.Bc4 h6
- Italian Game: Blackburne-Kostić Gambit — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4
- Italian Game: Classical Variation, Albin Gambit — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.O-O Nf6 5.c3
- Italian Game: Deutz Gambit — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.O-O Nf6 5.d4
- Italian Game: Giuoco Pianissimo — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3
- Italian Game: Giuoco Pianissimo, Canal Variation — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6 5.Nc3 d6 6.Bg5
- Italian Game: Giuoco Pianissimo, Dubois Variation — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 f5 5.Ng5 f4
- Italian Game: Giuoco Pianissimo, Italian Four Knights Variation — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6 5.Nc3
- Italian Game: Giuoco Pianissimo, Lucchini Gambit — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 f5
- Italian Game: Giuoco Pianissimo, Normal — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Bc5
- Italian Game: Giuoco Piano — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5
- Italian Game: Hungarian Defense — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7
- Italian Game: Hungarian Defense, Tartakower Variation — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7 4.d4 exd4 5.c3 Nf6 6.e5 Ne4
- Italian Game: Jerome Gambit — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
- Italian Game: Paris Defense — 1.e4 e5 2.Nf3 Nc6 3.Bc4 d6
- Italian Game: Rosentreter Gambit — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d4
- Italian Game: Rousseau Gambit — 1.e4 e5 2.Nf3 Nc6 3.Bc4 f5