1. Main line 1. e4 e5 2. Nf3 Nc6 3. c3 2. Caro Gambit 1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 Bd7 3. Jaenisch Counterattack 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. Jaenisch Counterattack, 4. d3 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d3 5. Jaenisch Counterattack, 4... d5 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d3 d5 Guest preview: 5 of 16 lines Unlock the full course, save your progress, and keep training across every line. Start your 14-day trial Next