fredthebear: It's a real chore to know the theory accumulated in the King of Gambits. There are volumes of it, so one must be limited, pick and choose.King's Gambit Accepted, Kieseritsky, Berlin defence
C39 Sub-variants:
King's Gambit Accepted
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4
King's Gambit Accepted, Allgaier gambit
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5
King's Gambit Accepted, Allgaier, Horny defence
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Qxg4 Nf6 8. Qxf4 Bd6
King's Gambit Accepted, Allgaier, Thorold variation
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. d4
King's Gambit Accepted, Allgaier, Cook variation
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. d4 d5 8. Bxf4 dxe4 9. Bc4+ Kg7 10. Be5+
King's Gambit Accepted, Allgaier, Blackburne gambit
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Nc3
King's Gambit Accepted, Allgaier, Walker attack
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Bc4+
King's Gambit Accepted, Allgaier, Urusov attack
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Bc4+ d5 8. Bxd5+ Kg7 9. d4
King's Gambit Accepted, Allgaier, Schlechter defence
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 Nf6
King's Gambit Accepted, Kieseritsky, Paulsen defence
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Bg7
King's Gambit Accepted, Kieseritsky, long whip (Stockwhip, classical) defence
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5
King's Gambit Accepted, Kieseritsky, long whip defence, Jaenisch variation
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 6. Bc4 Rh7 7. d4 Bh6 8. Nc3
King's Gambit Accepted, Kieseritsky, Brentano (Campbell) defence
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5
King's Gambit Accepted, Kieseritsky, Brentano defence, Kaplanek variation
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. exd5 Qxd5 8. Nc3 Bb4 9. Kf2
King's Gambit Accepted, Kieseritsky, Brentano defence
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. Bxf4
King's Gambit Accepted, Kieseritsky, Brentano defence, Caro variation
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. Bxf4 Nxe4 8. Nd2
King's Gambit Accepted, Kieseritsky, Salvio (Rosenthal) defence
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Qe7
King's Gambit Accepted, Kieseritsky, Salvio defence, Cozio variation
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Qe7 6. d4 f5 7. Bc4
King's Gambit Accepted, Kieseritsky, Polerio defence
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Be7
King's Gambit Accepted, Kieseritsky, Neumann defence
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nc6
King's Gambit Accepted, Kieseritsky, Kolisch defence
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d6
King's Gambit Accepted, Kieseritsky, Berlin defence
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6
King's Gambit Accepted, Kieseritsky, Berlin defence, Riviere variation
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Nxg4 d5
King's Gambit Accepted, Kieseritsky, Berlin defence, 6.Bc4
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4
King's Gambit Accepted, Kieseritsky, Rice gambit
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 8. O-O
Here are the 46 King's Gambit games Hebden played in his younger days: https://www.chessgames.com/perl/che...