Ruy Lopez (C78)

Moeller defense

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5

Giuoco Piano (C54)

Moeller, bayonet attack

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5 Bf6 10. Re1 Ne7 11. Rxe4 d6 12. g4

Giuoco Piano (C54)

Moeller (Therkatz) attack

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5

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

QGD (D56)

Lasker defense

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4

Scandinavian defense (B01)

1. e4 d5 2. exd5 Nf6

QGD (D32)

Tarrasch defense, 4.cd ed

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5

Scandinavian defense (B01)

1. e4 d5 2. exd5 Nf6 3. d4

Alekhine's defense (B02)

1. e4 Nf6

QGD (D32)

Tarrasch defense

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3

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

KGD (C30)

Mafia defense

1. e4 e5 2. f4 c5

QGD (D06)

Marshall defense

1. d4 d5 2. c4 Nf6

Alekhine's defense (B02)

1. e4 Nf6 2. e5 Nd5

Scandinavian defense (B01)

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5

KGA (C34)

Fischer defense

1. e4 e5 2. f4 exf4 3. Nf3 d6