D00
Queen's pawn game
1.d4 d5

Queen's pawn, Mason variation
2.Bf4

Queen's pawn, Mason variation, Steinitz counter-gambit
2... c5

Levitsky attack (Queen's bishop attack)
2.Bg5

Blackmar gambit
2.e4

Queen's pawn, stonewall attack
2.e3 Nf6 3.Bd3

Queen's pawn, Chigorin variation
2.Nc3

Queen's pawn, Anti-Veresov
2... Bg4

Blackmar-Diemer gambit
2... Nf6 3.e4

Blackmar-Diemer, Euwe defence
3... dxe4 4.f3 exf3 5.Nxf3 e6

Blackmar-Diemer, Lemberg counter-gambit
3... e5
D01
Richter-Veresov attack
1.d4 d5 2.Nc3 Nf6 3.Bg5

Richter-Veresov attack, Veresov variation
3... Bf5 4.Bxf6

Richter-Veresov attack, Richter variation
3... Bf5 4.f3
D02
Queen's pawn game
1.d4 d5 2.Nf3

Queen's pawn game, Chigorin variation
2... Nc6

Queen's pawn game, Krause variation
2... c5

Queen's pawn game (2...Nf6)
2... Nf6

Queen's bishop game
3.Bf4
D03
Torre attack (Tartakower variation) 1.d4 d5 2.Nf3 Nf6 3.Bg5
D04
Queen's pawn game
1.d4 d5 2.Nf3 Nf6 3.e3
D05
Queen's pawn game
1.d4 d5 2.Nf3 Nf6 3.e3 e6

Queen's pawn game, Zukertort variation
4.Nbd2 c5 5.b3

Queen's pawn game (4.Bd3)
4.Bd3

Queen's pawn game, Rubinstein (Colle-Zukertort) var.
4... c5 5.b3

Colle system
4... c5 5.c3
D06
Queen's Gambit
1.d4 d5 2.c4

QGD, Grau (Sahovic) defence
2... Bf5


QGD, Marshall defence
2... Nf6

QGD, symmetrical (Austrian) defence
2... c5
D07
QGD, Chigorin defence
1.d4 d5 2.c4 Nc6

QGD, Chigorin defence, Janowski variation
3.Nc3 dxc4 4.Nf3
D08
QGD, Albin counter-gambit
1.d4 d5 2.c4 e5

QGD, Albin counter-gambit, Lasker trap
3.dxe5 d4 4.e3 Bb4+ 5.Bd2 dxe3

QGD, Albin counter-gambit (4.Nf3)
3.dxe5 d4 4.Nf3

QGD, Albin counter-gambit, Alapin variation
4... Nc6 5.Nbd2

QGD, Albin counter-gambit, Krenosz variation
5... Bg4 6.h3 Bxf3 7.Nxf3 Bb4+ 8.Bd2 Qe7

QGD, Albin counter-gambit, Janowski variation
5... f6

QGD, Albin counter-gambit, Balogh variation
5... Qe7
D09
QGD, Albin counter-gambit, 5.g3
1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.g3
D10
QGD Slav defence
1.d4 d5 2.c4 c6

QGD Slav defence, Alekhine variation
3.Nc3 dxc4 4.e4

QGD Slav, Winawer counter-gambit
3.Nc3 e5

QGD Slav defence, exchange variation
3.cxd5
D11
QGD Slav, 3.Nf3
1.d4 d5 2.c4 c6 3.Nf3

QGD Slav, Breyer variation
3... Nf6 4.Nbd2

QGD Slav, 4.e3
3... Nf6 4.e3
D12
QGD Slav, 4.e3 Bf5 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5

QGD Slav, Landau variation
5.cxd5 cxd5 6.Qb3 Qc8 7.Bd2 e6 8.Na3

QGD Slav, exchange variation
5.cxd5 cxd5 6.Nc3

QGD Slav, Amsterdam variation
6... e6 7.Ne5 Nfd7
D13
QGD Slav, exchange variation
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5
D14
QGD Slav, exchange variation, 6.Bf4 Bf5
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 Bf5

QGD Slav, exchange, Trifunovic variation
7.e3 e6 8.Qb3 Bb4
D15
QGD Slav, 4.Nc3
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3

QGD Slav, Suechting variation
4... Qb6

QGD Slav, Schlechter variation
4... g6

QGD Slav accepted
4... dxc4

QGD Slav, 5.e3 (Alekhine variation)
5.e3

QGD Slav, Slav gambit
5.e4

QGD Slav, Tolush-Geller gambit
5... b5 6.e5
D16
QGD Slav accepted, Alapin variation
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4

QGD Slav, Smyslov variation
5... Na6 6.e4 Bg4

QGD Slav, Soultanbeieff variation
5... e6

QGD Slav, Steiner variation
5... Bg4
D17
QGD Slav, Czech defence
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5

QGD Slav, Krause attack
6.Ne5

QGD Slav, Carlsbad variation
6... Nbd7 7.Nxc4 Qc7 8.g3 e5

QGD Slav, Wiesbaden variation
6... e6
D18
QGD Slav, Dutch variation
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3

QGD Slav, Dutch, Lasker variation
6... Na6
D19
QGD Slav, Dutch variation
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O

QGD Slav, Dutch variation, main line
8... O-O 9.Qe2

QGD Slav, Dutch, Saemisch variation
9... Ne4 10.g4
D20
Queen's gambit accepted
1.d4 d5 2.c4 dxc4

QGA, 3.e4
3.e4

QGA, Linares variation
3... c5 4.d5 Nf6 5.Nc3 b5

QGA, Schwartz defence
3... f5
D21
QGA, 3.Nf3
1.d4 d5 2.c4 dxc4 3.Nf3

QGA, Ericson variation
3... b5

QGA, Alekhine defense, Borisenko-Furman variation
3... a6 4.e4
D22
QGA, Alekhine defence
1.d4 d5 2.c4 dxc4 3.Nf3 a6

QGA, Alekhine defence, Alatortsev variation
4.e3 Bg4 5.Bxc4 e6 6.d5

QGA, Haberditz variation
4.e3 b5
D23
Queen's gambit accepted
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6

QGA, Mannheim variation
4.Qa4+
D24
QGA, 4.Nc3
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3

QGA, Bogolyubov variation
4... a6 5.e4
D25
QGA, 4.e3
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3

QGA, Smyslov variation
4... g6

QGA, Janowsky-Larsen variation
4... Bg4

QGA, Flohr variation
4... Be6
D26
QGA, 4...e6
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6

QGA, classical variation
5.Bxc4 c5

QGA, classical, Furman variation
6.Qe2 a6 7.dxc5 Bxc5 8.O-O Nc6 9.e4 b5 10.e5

QGA, classical variation, 6.O-O
6.O-O

QGA, classical, Steinitz variation
6... cxd4
D27
QGA, classical, 6...a6
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6

QGA, classical, Rubinstein variation
7.a4

QGA, classical, Geller variation
7.e4
D28
QGA, classical, 7.Qe2
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2

QGA, classical, 7...b5
7... b5

QGA, classical, Flohr variation
8.Bb3 Nc6 9.Rd1 c4 10.Bc2 Nb4 11.Nc3 Nxc2 12.Qxc2 Bb7 13.d5 Qc7
D29
QGA, classical, 8...Bb7
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5 8.Bb3 Bb7

QGA, classical, Smyslov variation
9.Rd1 Nbd7 10.Nc3 Bd6
D30
Queen's gambit declined
1.d4 d5 2.c4 e6

QGD Slav
3.Nf3 Nf6 4.e3 c6 5.Nbd2

QGD, Stonewall variation
5... Ne4 6.Bd3 f5

QGD Slav (5...Nbd7)
5... Nbd7

QGD Slav, Semmering variation
6.Bd3 c5

QGD, Spielmann variation
5... g6

QGD (4.Bg5)
3.Nf3 Nf6 4.Bg5

QGD, Capablanca variation
4... Nbd7 5.e3 c6 6.Nbd2

QGD, Vienna variation
4... Bb4+

QGD, Capablanca-Duras variation
4... h6

QGD, Hastings variation
5.Bxf6 Qxf6 6.Nc3 c6 7.Qb3
D31
QGD, 3.Nc3
1.d4 d5 2.c4 e6 3.Nc3

QGD, Janowski variation
3... a6

QGD, Alapin variation
3... b6

QGD, Charousek (Petrosian) variation
3... Be7

QGD, semi-Slav
3... c6

QGD, semi-Slav, Noteboom variation
4.Nf3 dxc4

QGD, semi-Slav, Koomen variation
5.a4 Bb4 6.e3 b5 7.Bd2 Qe7

QGD, semi-Slav, Junge variation
5.a4 Bb4 6.e3 b5 7.Bd2 Qb6

QGD, semi-Slav, Abrahams variation
5.a4 Bb4 6.e3 b5 7.Bd2 a5

QGD, semi-Slav, Marshall gambit
4.e4
D32
QGD, Tarrasch defence
1.d4 d5 2.c4 e6 3.Nc3 c5

QGD, Tarrasch, von Hennig-Schara gambit
4.cxd5 cxd4

QGD, Tarrasch defence, 4.cd ed
4.cxd5 exd5

QGD, Tarrasch defence, Tarrasch gambit
5.dxc5 d4 6.Na4 b5

QGD, Tarrasch defence, Marshall gambit
5.e4

QGD, Tarrasch defence (5.Nf3)
5.Nf3

QGD, Tarrasch, Schlechter-Rubinstein system
5... Nc6 6.g3
D33 QGD, Tarrasch, Folkestone (Swedish) variation
1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 c4

QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid var.
7.e4

QGD, Tarrasch, Prague variation
1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6

QGD, Tarrasch, Wagner variation
7.Bg2 Bg4
D34
QGD, Tarrasch, Prague variation, 7...Be7
1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7

QGD, Tarrasch, Prague variation, Normal position
8.O-O O-O

QGD, Tarrasch, Reti variation
9.dxc5 Nxc5 10.Na4

QGD, Tarrasch, Prague variation, 9.Bg5
9.Bg5

QGD, Tarrasch, Bogolyubov variation
9... Be6 10.Rc1 c4

GD, Tarrasch, Stoltz variation
9... Be6 10.Rc1 b6
D35
QGD, 3...Nf6
1.d4 d5 2.c4 e6 3.Nc3 Nf6

QGD, Harrwitz attack
4.Bf4

QGD, exchange variation
4.cxd5

QGD, exchange, Saemisch variation
4... exd5 5.Nf3 Nbd7 6.Bf4

QGD, exchange, positional line
4... exd5 5.Bg5

QGD, exchange, chameleon variation
5... Be7 6.e3 O-O 7.Bd3 Nbd7 8.Qc2 Re8 9.Nge2 Nf8 10.O-O-O

QGD, exchange, positional line, 5...c6
5... c6
D36
QGD, exchange, positional line, 6.Qc2
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.Qc2
D37
QGD, 4.Nf3
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3

QGD, classical variation (5.Bf4)
4... Be7 5.Bf4
D38
QGD, Ragozin variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4
D39
QGD, Ragozin, Vienna variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4 5.Bg5 dxc4
D40
QGD, Semi-Tarrasch defence
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5

QGD, Semi-Tarrasch, symmetrical variation
5.e3 Nc6 6.Bd3 Bd6 7.O-O O-O

QGD, Semi-Tarrasch, Levenfish variation
8.Qe2 Qe7 9.dxc5 Bxc5 10.e4

QGD, Semi-Tarrasch defence, Pillsbury variation
5.Bg5
D41
QGD, Semi-Tarrasch, 5.cd
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5

QGD, Semi-Tarrasch, Kmoch variation
5... Nxd5 6.e4 Nxc3 7.bxc3 cxd4 8.cxd4 Bb4+ 9.Bd2 Bxd2+ 10.Qxd2 O-O 11.Bb5

QGD, Semi-Tarrasch, San Sebastian variation
5... Nxd5 6.e4 Nxc3 7.bxc3 cxd4 8.cxd4 Bb4+ 9.Bd2 Qa5

Semi-Tarrasch with e3
5... Nxd5 6.e3
D42
QGD, Semi-Tarrasch, 7.Bd3
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e3 Nc6 7.Bd3
D43
QGD semi-Slav
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6

QGD semi-Slav, Hastings variation
5.Bg5 h6 6.Bxf6 Qxf6 7.Qb3
D44
QGD semi-Slav, 5.Bg5 dc
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4

QGD semi-Slav, Botvinnik system (anti-Meran)
6.e4

QGD semi-Slav, Ekstrom variation
6... b5 7.e5 h6 8.Bh4 g5 9.exf6 gxh4 10.Ne5

QGD semi-Slav, anti-Meran gambit
6... b5 7.e5 h6 8.Bh4 g5 9.Nxg5

QGD semi-Slav, anti-Meran, Lilienthal variation
9... hxg5 10.Bxg5 Nbd7 11.g3

QGD semi-Slav, anti-Meran, Szabo variation
9... hxg5 10.Bxg5 Nbd7 11.Qf3

QGD semi-Slav, anti-Meran, Alatortsev system
9... Nd5
D45
QGD semi-Slav, 5.e3
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3

QGD semi-Slav, stonewall defence
5... Ne4 6.Bd3 f5

QGD semi-Slav, accelerated Meran (Alekhine variation)
5... a6

QGD semi-Slav, 5...Nd7
5... Nbd7

QGD semi-Slav, Stoltz variation
6.Qc2

QGD semi-Slav, Rubinstein (anti-Meran) system
6.Ne5
D46
QGD semi-Slav, 6.Bd3
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3

QGD semi-Slav, Bogolyubov variation
6... Be7

QGD semi-Slav, Romih variation
6... Bb4

QGD semi-Slav, Chigorin defence
6... Bd6
D47
QGD semi-Slav, 7.Bc4
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4

QGD semi-Slav, Meran variation
7... b5

QGD semi-Slav, neo-Meran (Lundin variation)
8.Bd3 b4

QGD semi-Slav, Meran, Wade variation
8.Bd3 Bb7
D48
QGD 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

QGD semi-Slav, Meran, Pirc variation
9.e4 b4

QGD semi-Slav, Meran
9.e4 c5

QGD semi-Slav, Meran, Reynolds' variation
10.d5

QGD semi-Slav, Meran, old main line
10.e5
D49
QGD 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

QGD semi-Slav, Meran, Rabinovich variation
11... Ng4

QGD semi-Slav, Meran, Sozin variation
11... Nxe5

QGD semi-Slav, Meran, Stahlberg variation
12.Nxe5 axb5 13.Qf3

QGD semi-Slav, Meran, Sozin variation (13.O-O)
12.Nxe5 axb5 13.O-O

QGD semi-Slav, Meran, Rellstab attack
13... Qd5 14.Qe2 Ba6 15.Bg5
D50
QGD, 4.Bg5
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5

QGD, Been-Koomen variation
4... c5

QGD, Semi-Tarrasch, Krause variation
5.Nf3 cxd4 6.Nxd4 e5 7.Ndb5 a6 8.Qa4

QGD, Semi-Tarrasch, Primitive Pillsbury variation
5.Nf3 cxd4 6.Qxd4

QGD, Semi-Tarrasch
5.cxd5

QGD, Canal (Venice) variation
5... Qb6
D51
QGD, 4.Bg5 Nbd7
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7

QGD, Rochlin variation
5.Nf3 c6 6.Rc1 Qa5 7.Bd2

QGD, Alekhine variation
5.Nf3 c6 6.e4

QGD
5.e3

QGD, Manhattan variation
5... Bb4

QGD, 5...c6
5.. c6

QGD, Capablanca anti-Cambridge Springs variation
6.a3
D52
QGD
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3

QGD, Cambridge Springs defence
6... Qa5

QGD, Cambridge Springs defence, Bogoljubow variation
7.Nd2 Bb4 8.Qc2

QGD, Cambridge Springs defence, Argentine variation
8... O-O 9.Bh4

QGD, Cambridge Springs defence, Rubinstein variation
7.Nd2 dxc4

QGD, Cambridge Springs defence, Capablanca variation
7.Bxf6

QGD, Cambridge Springs defence, 7.cd
7.cxd5

QGD, Cambridge Springs defence, Yugoslav variation
7... Nxd5
D53
QGD, 4.Bg5 Be7
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7

QGD, Lasker variation
5.e3 Ne4

QGD, 4.Bg5 Be7, 5.e3 O-O
5.e3 O-O
D54
QGD, Anti-neo-orthodox variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Rc1
D55
QGD, 6.Nf3
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3

QGD, Pillsbury attack
6... b6 7.Bd3 Bb7 8.cxd5 exd5 9.Ne5

QGD, Neo-orthodox variation
6... h6

QGD, Neo-orthodox variation, 7.Bxf6
7.Bxf6

QGD, Petrosian variation
7... Bxf6 8.Rc1 c6 9.Bd3 Cd7 10.O-O dxc4 11.Bxc4

QGD, Neo-orthodox variation, 7.Bh4
7.Bh4
D56
QGD, Lasker defence
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4

QGD, Lasker defence, Teichmann variation
8.Bxe7 Qxe7 9.Qc2

QGD, Lasker defence, Russian variation
9... Nf6 10.Bd3 dxc4 11.Bxc4 c5 12.O-O Nc6 13.Rfd1 Bd7
D57
QGD, Lasker defence, main line
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 Qxe7 9.cxd5 Nxc3 10.bxc3

QGD, Lasker defence, Bernstein variation
10... exd5 11.Qb3 Qd6
D58
QGD, Tartakower (Makagonov-Bondarevsky) system
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6
D59
QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd5
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.cxd5 Nxd5

QGD, Tartakower variation
9.Bxe7 Qxe7 10.Nxd5 exd5 11.Rc1 Be6
D60
QGD, Orthodox defence
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7

QGD, Orthodox defence, Botvinnik variation
7.Bd3

QGD, Orthodox defence, Rauzer variation
7.Qb3
D61
QGD, Orthodox defence, Rubinstein variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Qc2
D62
QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Qc2 c5 8.cxd5
D63
QGD, Orthodox defence, 7.Rc1
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1

QGD, Orthodox defence, Pillsbury attack
7... b6 8.cxd5 exd5 9.Bd3

QGD, Orthodox defence, Capablanca variation
7... b6 8.cxd5 exd5 9.Bb5

QGD, Orthodox defence, Swiss (Henneberger) variation
7... a6

QGD, Orthodox defence, Swiss, Karlsbad variation
8.cxd5

QGD, Orthodox defence
7... c6
D64
QGD, Orthodox defence, Rubinstein attack (with Rc1)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Qc2

QGD, Orthodox defence, Rubinstein attack, Wolf var.
8... Ne4

QGD, Orthodox defence, Rubinstein attack, Karlsbad var.
8... a6

QGD, Orthodox defence, Rubinstein attack, Gruenfeld var.
9.a3
D65
QGD, Orthodox defence, Rubinstein attack, main line
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Qc2 a6 9.cxd5
D66
QGD, Orthodox defence, Bd3 line
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3

QGD, Orthodox defence, Bd3 line, fianchetto variation
8... dxc4 9.Bxc4 b5
D67
QGD, Orthodox defence, Bd3 line, Capablanca freeing manoevre
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5

QGD, Orthodox defence, Bd3 line, Janowski variation
10.h4

QGD, Orthodox defence, Bd3 line (10.Bxe7 Qxe7)
10.Bxe7 Qxe7

QGD, Orthodox defence, Bd3 line, Alekhine variation
11.Ne4

QGD, Orthodox defence, Bd3 line, 11.O-O
11.O-O
D68
QGD, Orthodox defence, classical variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.Rxc3 e5

QGD, Orthodox defence, classical, 13.Qb1 (Maroczy)
13.Qb1

QGD, Orthodox defence, classical, 13.Qc2 (Vidmar)
13.Qc2
D69
QGD, Orthodox defence, classical, 13.dxe5
1.d4 d5 2.c4 e6 .Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.Rxc3 e5 13.dxe5 Nxe5 14.Nxe5 Qxe5
D70
Neo-Gruenfeld defence
1.d4 Nf6 2.c4 g6 3.f3 d5

Neo-Gruenfeld (Kemeri) defence
1.d4 Nf6 2.c4 g6 3.g3 d5
D71
Neo-Gruenfeld, 5.cxd5
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.cxd5 Nxd5
D72
Neo-Gruenfeld, 5.cxd5, main line
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.cxd5 Nxd5 6.e4 Nb6 7.Ne2
D73
Neo-Gruenfeld, 5.Nf3
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3
D74
Neo-Gruenfeld, 6.cxd5 Nxd5, 7.O-O
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O
D75
Neo-Gruenfeld, 6.cxd5 Nxd5, 7.O-O c5, 8.Nc3
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O c5 8.Nc3

Neo-Gruenfeld, 6.cxd5 Nxd5, 7.O-O c5, 8.dxc5
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O c5 8.dxc5
D76
Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O Nb6
D77
Neo-Gruenfeld, 6.O-O
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O
D78
Neo-Gruenfeld, 6.O-O c6
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6
D79
Neo-Gruenfeld, 6.O-O, main line
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.cxd5 cxd5
D80
Gruenfeld defence
1.d4 Nf6 2.c4 g6 3.Nc3 d5

Gruenfeld, Spike gambit
4.g4

Gruenfeld, Stockholm variation
4.Bg5

Gruenfeld, Lundin variation
4... Ne4 5.Nxe4 dxe4 6.Qd2 c5
D81
Gruenfeld, Russian variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Qb3
D82
Gruenfeld, 4.Bf4
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4
D83
Gruenfeld, Gruenfeld gambit
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O

Gruenfeld, Gruenfeld gambit, Capablanca variation
6.Rc1

Gruenfeld, Gruenfeld gambit, Botvinnik variation
6... c5 7.dxc5 Be6
D84
Gruenfeld, 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
D85
Gruenfeld, exchange variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5

Gruenfeld, modern exchange variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Nf3
D86
Gruenfeld, exchange, classical variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4

Gruenfeld, exchange, Larsen variation
7... O-O 8.Ne2 Qd7 9.O-O b6

Gruenfeld, exchange, Simagin's lesser variation
7... O-O 8.Ne2 b6

Gruenfeld, exchange, Simagin's improved variation
7... O-O 8.Ne2 Nc6
D87
Gruenfeld, exchange, Spassky variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5

Gruenfeld, exchange, Seville variation
9.O-O Nc6 10.Be3 Bg4 11.f3 Na5 12.Bxf7+
D88
Gruenfeld, Spassky variation, main line, 10...cd, 11.cd
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5 9.O-O Nc6 10.Be3 cxd4 11.cxd4
D89
Gruenfeld, Spassky variation, main line, 13.Bd3
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5 9.O-O Nc6 10.Be3 cxd4 11.cxd4 Bg4 12.f3 Na5 13.Bd3 Be6

Gruenfeld, exchange, Sokolsky variation
14.d5
D90
Gruenfeld, Three knights variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3

Gruenfeld, Schlechter variation
4... c6

Gruenfeld, Three knights variation (4...Bg7)
4... Bg7

Gruenfeld, Flohr variation
5.Qa4+
D91
Gruenfeld, 5.Bg5
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5
D92
Gruenfeld, 5.Bf4
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4
D93
Gruenfeld with Bf4, e3
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.e3
D94
Gruenfeld, 5.e3
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3

Gruenfeld, Makogonov variation
5... O-O 6.b4

Gruenfeld, Opovcensky variation
5... O-O 6.Bd2

Gruenfeld with e3, Bd3
5... O-O 6.Bd3

Gruenfeld, Smyslov defence
6... c6 7.O-O Bg4

Gruenfeld, Flohr defence
6... c6 7.O-O Bf5
D95
Gruenfeld with e3 & Qb3
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Qb3

Gruenfeld, Botvinnik variation
6... e6

Gruenfeld, Pachman variation
6... dxc4 7.Bxc4 Nbd7 8.Ng5
D96
Gruenfeld, Russian variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3
D97
Gruenfeld, Russian variation with e4
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4

Gruenfeld, Russian, Alekhine (Hungarian) variation
7... a6

Gruenfeld, Russian, Szabo (Boleslavsky) variation
7... c6

Gruenfeld, Russian, Levenfish variation
7... b6

Gruenfeld, Russian, Byrne (Simagin) variation
7... Nc6

Gruenfeld, Russian, Prins variation
7... Na6
D98
Gruenfeld, Russian, Smyslov variation
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4

Gruenfeld, Russian, Keres variation
8.Be3 Nfd7 9.Be2 Nb6 10.Qd3 Nc6 11.O-O-O
D99
Gruenfeld defence, Smyslov, main line
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 Nfd7 9.Qb3

Gruenfeld defence, Smyslov, Yugoslav variation
9... c5