de Bruycker defense (B12)

1. e4 c6 2. d4 Na6 3. Nc3 Nc7

KGA (C36)

Abbazia defense (Classical defense, Modern defense[!])

1. e4 e5 2. f4 exf4 3. Nf3 d5

Ruy Lopez (C79)

Steinitz defense deferred (Russian defense)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6

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

Alekhine's defense (B02)

Brooklyn defense

1. e4 Nf6 2. e5 Ng8

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

Alekhine's defense (B03)

1. e4 Nf6 2. e5 Nd5 3. d4

Two knights defense (C56)

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

Fried fox defense (B00)

1. e4 f6 2. d4 Kf7

Alekhine's defense (B03)

1. e4 Nf6 2. e5 Nd5 3. d4 d6

Two knights defense (C55)

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

Alekhine's defense (B03)

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4

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

Hungarian defense (C50)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7

Alekhine's defense (B02)

1. e4 Nf6 2. e5 Nd5 3. c4

Two knights defense (C58)

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

Carr's defense (B00)

1. e4 h6