Two knights defense (C57)

Fegatello attack, Polerio defense

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6 8. Nc3 Ne7

Three knights (C46)

Winawer defense (Gothic defense)

1. e4 e5 2. Nf3 Nc6 3. Nc3 f5

Two knights defense (C58)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2

Two knights defense (C58)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5

Two knights defense (C57)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5

Two knights defense (C58)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+

Two knights defense (C56)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4

Two knights defense (C55)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O

Two knights defense (C59)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6

Two knights defense (C55)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4

Two knights defense (C55)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6

Two knights defense, Perreux variation (C55)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. Ng5

Two knights defense (C58)

Colman variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Rb8

Two knights defense (C56)

Yurdansky attack

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bg5 h6 11. Bh4 g5 12. Nf6+ Ke7 13. b4

Two knights defense (C57)

Lolli attack

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. d4

Robatsch defense (B06)

Two knights variation

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3

Two knights defense (C57)

Fritz variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4

Two knights defense (C57)

Ulvestad variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5

Two knights defense (C56)

Canal variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 6. Re1 d5 7. Nc3

Four knights (C48)

Spanish, Classical defense

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5