Four knights (C48)

Spanish, Classical defense

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

Four knights (C48)

Spanish variation

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

Ruy Lopez (Spanish Opening) (C60)

1. e4 e5 2. Nf3 Nc6 3. Bb5

Ruy Lopez (C84)

Closed, Basque gambit (North Spanish variation)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4 exd4 7. e5 Ne4 8. c3

KGA (C36)

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

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

Ruy Lopez (C64)

Classical defense, 4.c3

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3

QGD (D69)

Orthodox defense, Classical, 13.de

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. dxe5 Nxe5 14. Nxe5 Qxe5

Ruy Lopez (C64)

Classical (Cordel) defense

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5

KGA (C33)

Bishop's gambit, Classical defense

1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5

Ruy Lopez (C70)

Classical defense deferred

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5

KGA (C33)

Bishop's gambit, Classical defense

1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. d4 Ne7

Ruy Lopez (C83)

Open, Classical defense

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7

QGD (D68)

Orthodox defense, Classical variation

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5

Ruy Lopez (C64)

Classical defense, Boden variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Qe7

Ruy Lopez (C64)

Classical defense, Zaitsev variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nd4 5. b4

Sicilian (B74)

Dragon, Classical, Bernard defense

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. O-O O-O 9. Nb3 Be6 10. f4 Na5 11. f5 Bc4 12. Bd3 Bxd3 13. cxd3 d5

Ruy Lopez (C64)

Classical defense, Charousek variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Bb6

QGD (D68)

Orthodox defense, Classical, 13.d1c2 (Vidmar)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. Qc2

QGD (D68)

Orthodox defense, Classical, 13.d1b1 (Maroczy)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. Qb1

Ruy Lopez (C64)

Classical defense, Benelux variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. O-O O-O 6. d4 Bb6