Queen's Gambit

It has ECO code from D06-69
[Black "06"] {Queen's Gambit}
1.d4 d5 2.c4

{D06 Queen's Gambit
Declined, Grau Defence}
1.d4 d5 2.c4 Bf5

{D06 Queen's Gambit
Declined, Marshall Defence}
1.d4 d5 2.c4 Nf6

{D06 Queen's Gambit
Declined, Symmetrical Defence}
1.d4 d5 2.c4 c5

[Black "D07"]{ Queen's Gambit
Declined, Chigorin Defence}
1.d4 d5 2.c4 Nc6

{D07 Queen's Gambit
Declined, Chigorin Defence, Janowski Variation}
1.d4 d5 2.c4 Nc6 3.Nc3 dxc4 4.Nf3

[Black "D08"]{ Queen's Gambit
Declined, Albin Counter-Gambit}
1.d4 d5 2.c4 e5

{D08 Queen's Gambit
Declined, Albin Counter-Gambit, Lasker trap}
1.d4 d5 2.c4 e5 3.dxe5 d4 4.e3 Bb4 5.Bd2 dxe3

{D08 Queen's Gambit
Declined, Albin Counter-Gambit}
1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3
{D08 Queen's Gambit
Declined, Albin Counter-Gambit, Alapin Variation}
1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.Nbd2

{D08 Queen's Gambit
Declined, Albin Counter-Gambit, Krenosz Variation}
1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.Nbd2 Bg4 6.h3 Bxf3 7.Nxf3 Bb4 8.Bd2 Qe7

{D08 Queen's Gambit
Declined, Albin Counter-Gambit, Janowski Variation}
1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.Nbd2 f6

{D08 Queen's Gambit
Declined, Albin Counter-Gambit, Balogh Variation}
1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.Nbd2 Qe7

[Black "D09"]{ Queen's Gambit
Declined, Albin Counter-Gambit, 5.g3}
1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.g3

[Black "D10"]{ Queen's Gambit
Declined, Slav Defence}
1.d4 d5 2.c4 c6

{D10 Queen's Gambit
Declined, Slav Defence, Alekhine Variation}
1.d4 d5 2.c4 c6 3.Nc3 dxc4 4.e4

{D10 Queen's Gambit
Declined, Slav Defence, Winawer Counter-Gambit}
1.d4 d5 2.c4 c6 3.Nc3 e5

{D10 Queen's Gambit
Declined, Slav Defence, Exchange Variation}
1.d4 d5 2.c4 c6 3.cxd5

[Black "D11"]{ Queen's Gambit
Declined, Slav Defence, 3.Nf3}
1.d4 d5 2.c4 c6 3.Nf3

{D11 Queen's Gambit
Declined, Slav Defence, Breyer Variation}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nbd2

{D11 Queen's Gambit
Declined, Slav Defence, 4.e3}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3

[Black "D12"]{ Queen's Gambit
Declined, Slav Defence, 4.e3 Bf5}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5

{D12 Queen's Gambit
Declined, Slav Defence, Landau Variation}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5 5.cxd5 cxd5 6.Qb3 Qc8 7.Bd2 e6 8.Na3
{D12 Queen's Gambit
Declined, Slav Defence, Exchange Variation}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5 5.cxd5 cxd5 6.Nc3
{D12 Queen's Gambit
Declined, Slav Defence, Amsterdam Variation}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5 5.cxd5 cxd5 6.Nc3 e6 7.Ne5 Nfd7

[Black "D13"] { Queen's Gambit
Declined, Slav Defence, Exchange Variation}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5

[Black "D14"]{ Queen's Gambit
Declined, Slav Defence, Exchange Variation, 6.Bf4 Bf5}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 Bf5
{D14 Queen's Gambit
Declined, Slav Defence, Exchange, Trifunovic Variation}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 Bf5 7.e3 e6 8.Qb3 Bb4

[Black "D15"]{ Queen's Gambit
Declined, Slav Defence, 4.Nc3}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3

{D15 Queen's Gambit
Declined, Slav Defence, Suechting Variation}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 Qb6

{D15 Queen's Gambit
Declined, Slav Defence, Schlechter Variation}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 g6

{D15 Queen's Gambit
Declined, Slav Defence Accepted}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4

{D15 Queen's Gambit
Declined, Slav Defence, 5.e3 (Alekhine Variation)}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.e3

{D15 Queen's Gambit
Declined, Slav Defence, Slav Gambit}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.e4
{D15 Queen's Gambit
Declined, Slav Defence, Tolush-Geller Gambit}
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.e4 b5 6.e5