C30: King's Gambit Declined, Mafia defence

C30 Sub-variants:

• King's gambit
  1. e4 e5 2. f4
• King's Gambit Declined, Keene's defence
  1. e4 e5 2. f4 Qh4+ 3. g3 Qe7
• King's Gambit Declined, Mafia defence
  1. e4 e5 2. f4 c5
• King's Gambit Declined, Norwalde variation
  1. e4 e5 2. f4 Qf6
• King's Gambit Declined, Norwalde variation, Buecker gambit
  1. e4 e5 2. f4 Qf6 3. Nf3 Qxf4 4. Nc3 Bb4 5. Bc4
• King's Gambit Declined, classical variation
  1. e4 e5 2. f4 Bc5
• King's Gambit Declined, classical, Svenonius variation
  1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. Nc3 Nf6 5. Bc4 Nc6 6. d3 Bg4 7. h3 Bxf3 8. Qxf3 exf4
• King's Gambit Declined, classical, Hanham variation
  1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. Nc3 Nd7
• King's Gambit Declined, classical, 4.c3
  1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3
• King's Gambit Declined, classical, Marshall attack
  1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 Bg4 5. fxe5 dxe5 6. Qa4+
• King's Gambit Declined, classical counter-gambit
  1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 f5
• King's Gambit Declined, classical, Reti variation
  1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 f5 5. fxe5 dxe5 6. d4 exd4 7. Bc4
• King's Gambit Declined, classical, Soldatenkov variation
  1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. fxe5
• King's Gambit Declined, classical, Heath variation
  1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. b4
• King's Gambit Declined, 2...Nf6
  1. e4 e5 2. f4 Nf6