Ponziani counter-gambit, Schmidt attack (C44)

1. e4 e5 2. Nf3 Nc6 3. c3 f5 4. d4 d6 5. d5

Ponziani (C44)

Jaenisch counter-attack

1. e4 e5 2. Nf3 Nc6 3. c3 Nf6

Ponziani counter-gambit (C44)

1. e4 e5 2. Nf3 Nc6 3. c3 f5

Ponziani counter-gambit, Cordel variation (C44)

1. e4 e5 2. Nf3 Nc6 3. c3 f5 4. d4 d6 5. d5 fxe4 6. Ng5 Nb8 7. Nxe4 Nf6 8. Bd3 Be7

Scotch (C45)

Schmidt variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6

KGA (C37)

Salvio gambit, Anderssen counter-attack

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 7. d4 d6

KGA (C37)

Muzio gambit, Kling and Horwitz counter-attack

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O Qe7

Bishop's Opening (C24)

Ponziani gambit

1. e4 e5 2. Bc4 Nf6 3. d4

Scotch gambit (C44)

Anderssen (Paulsen, Suhle) counter-attack

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. O-O d6 6. c3 Bg4

Philidor (C41)

Philidor counter-gambit, del Rio attack

1. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6

Scandinavian (B01)

Anderssen counter-attack Orthodox attack

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. dxe5 Bb4 6. Bd2 Nc6 7. Nf3

KGA (C33)

Bishop's gambit, Lopez-Gianutio counter-gambit

1. e4 e5 2. f4 exf4 3. Bc4 f5

Scotch (C45)

Pulling counter-attack

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4

Four knights (C49)

Gunsberg counter-attack

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. Nd5 Nxd5 7. exd5 e4

Ruy Lopez (C89)

Marshall counter-attack

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5

Scandinavian (B01)

Anderssen counter-attack

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5

Ruy Lopez (C88)

Trajkovic counter-attack

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 Bb7

Ruy Lopez (C89)

Marshall counter-attack, 11...c6

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6

KGA (C33)

Bishop's gambit, Bryan counter-gambit

1. e4 e5 2. f4 exf4 3. Bc4 b5

KGA (C33)

Bishop's gambit, Bryan counter-gambit

1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 b5