Two knights defense (Modern Bishop's Opening) (C55)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3

Bishop's Opening (C24)

Berlin defense

1. e4 e5 2. Bc4 Nf6

Ruy Lopez (C71)

Modern Steinitz defense, Three knights variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Nc3

Bishop's Opening (C23)

1. e4 e5 2. Bc4

Bishop's Opening (C23)

del Rio variation

1. e4 e5 2. Bc4 Bc5 3. c3 Qg5

Bishop's Opening (C23)

Lewis gambit

1. e4 e5 2. Bc4 Bc5 3. d4

Bishop's Opening (C23)

Wing gambit

1. e4 e5 2. Bc4 Bc5 3. b4

Bishop's Opening (C23)

Philidor variation

1. e4 e5 2. Bc4 Bc5 3. c3

Bishop's Opening (C23)

Lopez gambit

1. e4 e5 2. Bc4 Bc5 3. Qe2 Nc6 4. c3 Nf6 5. f4

Bishop's Opening (C23)

Four pawns' gambit

1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4 exf4 5. Nf3 Be7 6. d4 Bh4+ 7. g3 fxg3 8. O-O gxh2+ 9. Kh1

Bishop's Opening (C24)

Greco gambit

1. e4 e5 2. Bc4 Nf6 3. f4

Bishop's Opening (C24)

Ponziani gambit

1. e4 e5 2. Bc4 Nf6 3. d4

Bishop's Opening (C24)

Urusov gambit

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

Bishop's Opening (C23)

Classical variation

1. e4 e5 2. Bc4 Bc5

Bishop's Opening (C23)

Lisitsyn variation

1. e4 e5 2. Bc4 c6 3. d4 d5 4. exd5 cxd5 5. Bb5+ Bd7 6. Bxd7+ Nxd7 7. dxe5 Nxe5 8. Ne2

Bishop's Opening (C23)

Pratt variation

1. e4 e5 2. Bc4 Bc5 3. c3 Nf6 4. d4 exd4 5. e5 d5 6. exf6 dxc4 7. Qh5 O-O

Bishop's Opening (C23)

Philidor counter-attack

1. e4 e5 2. Bc4 c6

Bishop's Opening (C23)

Lewis counter-gambit

1. e4 e5 2. Bc4 Bc5 3. c3 d5

Bishop's Opening (C23)

MacDonnell double gambit

1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4

Bishop's Opening (C23)

Calabrese counter-gambit

1. e4 e5 2. Bc4 f5