Queen's Gambit

[Black "D46"]{ Queen's Gambit
Declined, Semi-Slav, 6.Bd3}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3

{D46 Queen's Gambit
Bogolyubov Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Be7

{D46 Queen's Gambit
Declined, Semi-Slav, Romih Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Bb4

{D46 Queen's Gambit
Declined, Semi-Slav, Chigorin Defence}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Bd6

[Black "D47"]{ Queen's Gambit
Declined, Semi-Slav, 7.Bc4}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4

{D47 Queen's Gambit
Declined, Semi-Slav, Meran Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5

{D47 Queen's Gambit
Declined, Semi-Slav, neo-Meran (Lundin Variation)}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 b4

{D47 Queen's Gambit
Declined, Semi-Slav, Meran, Wade Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Bb7

[Black "D48"]{ Queen's Gambit
Declined, Semi-Slav, Meran, 8...a6}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6

{D48 Queen's Gambit
Declined, Semi-Slav, Meran, Pirc Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 b4
{D48 Queen's Gambit
Declined, Semi-Slav, Meran}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5

{D48 Queen's Gambit
Declined, Semi-Slav, Meran, Reynolds' Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.d5

{D48 Queen's Gambit
Declined, Semi-Slav, Meran, old Main line}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5

[Black "D49"]{ Queen's Gambit
Declined, Semi-Slav, Meran, Blumenfeld Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5

{D49 Queen's Gambit
Declined, Semi-Slav, Meran, Rabinovich Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Ng4
{D49 Queen's Gambit
Declined, Semi-Slav, Meran, Sozin Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Nxe5

{D49 Queen's Gambit
Declined, Semi-Slav, Meran, Stahlberg Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Nxe5 12.Nxe5 axb5 13.Qf3

{D49 Queen's Gambit
Declined, Semi-Slav, Meran, Sozin Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Nxe5 12.Nxe5 axb5 13.O-O

{D49 Queen's Gambit
Declined, Semi-Slav, Meran, Rellstab Attack}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Nxe5 12.Nxe5 axb5 13.O-O Qd5 14.Qe2 Ba6 15.Bg5

[Black "D50"]{ Queen's Gambit
Declined, 4.Bg5}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5

{D50 Queen's Gambit
Declined, Been-Koomen Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5

{D50 Queen's Gambit
Declined, Semi-Tarrasch, Krause Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5 5.Nf3 cxd4 6.Nxd4 e5 7.Ndb5 a6 8.Qa4
{D50 Queen's Gambit
Declined, Semi-Tarrasch, Primitive Pillsbury Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5 5.Nf3 cxd4 6.Qxd4

{D50 Queen's Gambit
Declined, Semi-Tarrasch}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5 5.cxd5

{D50 Queen's Gambit
Declined, Canal Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5 5.cxd5 Qb6

[Black "D51"]{ Queen's Gambit
Declined, 4.Bg5 Nbd7}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7

{D51 Queen's Gambit
Declined, Rochlin Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.Nf3 c6 6.Rc1 Qa5 7.Bd2

{D51 Queen's Gambit
Declined, Alekhine Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.Nf3 c6 6.e4

{D51 Queen's Gambit
Declined}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3

{D51 Queen's Gambit
Declined, Manhattan Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 Bb4

{D51 Queen's Gambit
Declined, 5...c6}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6

{D51 Queen's Gambit
Declined, Capablanca Anti-Cambridge Springs Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.a3

[Black "D52"]{ Queen's Gambit
Declined}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3

{D52 Queen's Gambit
Declined, Cambridge Springs Defence}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5

{D52 Queen's Gambit
Declined, Cambridge Springs Defence, Bogoljubow Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Nd2 Bb4 8.Qc2

{D52 Queen's Gambit
Declined, Cambridge Springs Defence, Argentine Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Nd2 Bb4 8.Qc2 O-O 9.Bh4

{D52 Queen's Gambit
Declined, Cambridge Springs Defence, Rubinstein Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Nd2 dxc4

{D52 Queen's Gambit
Declined, Cambridge Springs Defence, Capablanca Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Bxf6

{D52 Queen's Gambit
Declined, Cambridge Springs Defence, 7.cd}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.cxd5

{D52 Queen's Gambit
Declined, Cambridge Springs Defence, Yugoslav Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.cxd5 Nxd5

[Black "D53"]{ Queen's Gambit
Declined, 4.Bg5 Be7}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7
{D53 Queen's Gambit
Declined, Lasker Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 Ne4

{D53 Queen's Gambit
Declined, 4.Bg5 Be7, 5.e3 O-O}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O

[Black "D54"]{ Queen's Gambit
Declined, Anti-neo-orthodox Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Rc1

[Black "D55"] { Queen's Gambit
Declined, 6.Nf3}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3

{D55 Queen's Gambit
Declined, Pillsbury Attack}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 b6 7.Bd3 Bb7 8.cxd5 exd5 9.Ne5

{D55 Queen's Gambit
Declined, Neo-orthodox Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6

{D55 Queen's Gambit
Declined, Neo-orthodox Variation, 7.Bxf6}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bxf6

{D55 Queen's Gambit
Declined, Petrosian Variation}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bxf6 Bxf6 8.Rc1 c6 9.Bd3 Nd7 10.O-O dxc4 11.Bxc4

{D55 Queen's Gambit
Declined, Neo-orthodox Variation, 7.Bh4}
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4