Queen's gambit accepted (D20)

1. d4 d5 2. c4 dxc4

Queen's gambit accepted (D23)

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6

Benko gambit accepted (A58)

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6

King's gambit accepted (C33)

1. e4 e5 2. f4 exf4

Benko gambit half accepted (A57)

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6

Blumenfeld counter-gambit accepted (E10)

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5

Gruenfeld (D84)

Gruenfeld gambit accepted

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. cxd5 Nxd5 7. Nxd5 Qxd5 8. Bxc7

Reti accepted (A09)

1. Nf3 d5 2. c4 dxc4

QGD Slav accepted (D15)

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4

English (A13)

Neo-Catalan accepted

1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 dxc4

Queen's Gambit (D06)

1. d4 d5 2. c4

Reti accepted (A09)

Keres variation

1. Nf3 d5 2. c4 dxc4 3. e3 Be6

QGD Slav accepted (D16)

Alapin variation

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4

Queen's gambit declined (D30)

1. d4 d5 2. c4 e6

Queen's pawn (A40)

Englund gambit

1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Qd5 f6 5. exf6 Nxf6

Queen's pawn (A45)

Bronstein gambit

1. d4 Nf6 2. g4

Queen's pawn (A40)

Charlick (Englund) gambit

1. d4 e5

Queen's pawn (A46)

Torre attack, Wagner gambit

1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e4

Queen's pawn, Mason variation, Steinitz counter-gambit (D00)

1. d4 d5 2. Bf4 c5

Queen's Indian (E17)

Anti-Queen's Indian system

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3