Etiquetas de Apertura

Sicilian Defense Other variations 5342

Sicilian Defense Lowenthal Variation 2632

Sicilian Defense Modern Variations 8084

Sicilian Defense McDonnell Attack 5416

Sicilian Defense Katalimov Variation 214

Sicilian Defense Closed 9205

Sicilian Defense Franco-Sicilian Variation 616

Sicilian Defense Delayed Alapin Variation 1582

Sicilian Defense Kalashnikov Variation 673

Sicilian Defense Old Sicilian 9722

Sicilian Defense Najdorf Variation 8399

Sicilian Defense Smith-Morra Gambit Accepted 1841

Sicilian Defense Smith-Morra Gambit 6739

Sicilian Defense Bowdler Attack 10074

Sicilian Defense Kan Variation 3203

Sicilian Defense Hyperaccelerated Dragon 1507

Sicilian Defense Open 4787

Sicilian Defense Dragon Variation 4040

Sicilian Defense Grand Prix Attack 1681

Sicilian Defense Alapin Variation 8379

Sicilian Defense Pin Variation 530

Sicilian Defense Four Knights Variation 1902

Sicilian Defense Marshall Gambit 1179

Sicilian Defense Kramnik Variation 479

Sicilian Defense Taimanov Variation 4766

Sicilian Defense Accelerated Dragon 4065

Sicilian Defense Scheveningen Variation 1138

Sicilian Defense Lasker-Pelikan Variation 2367

Sicilian Defense Nyezhmetdinov-Rossolimo Attack 4170

Sicilian Defense Nimzowitsch Variation 794

Sicilian Defense Delayed Alapin 2076

Sicilian Defense Sozin 285

Sicilian Defense Keres Variation 210

Sicilian Defense Moscow Variation 1057

Sicilian Defense French Variation 4382

Sicilian Defense Jalalabad Variation 112

Sicilian Defense Wing Gambit 1449

Sicilian Defense Paulsen-Basman Defense 382

Sicilian Defense Flohr Variation 104

Sicilian Defense Classical Variation 1321

Sicilian Defense Chekhover Variation 866

Sicilian Defense Smith-Morra Gambit Declined 1044

Sicilian Defense Morphy Gambit 372

Sicilian Defense Canal Attack 866

Sicilian Defense Smith-Morra Gambit Deferred 279

Sicilian Defense Bucker Variation 76

Sicilian Defense OKelly Variation 1880

Sicilian Defense Staunton-Cochrane Variation 1296

Sicilian Defense Drazic Variation 224

Sicilian Defense Hyperaccelerated Fianchetto 1538

Sicilian Defense Marshall Counterattack 674

Sicilian Defense Kveinis Variation 87

Sicilian Defense Sozin Attack 640

Sicilian Defense Brussels Gambit 25

Sicilian Defense Mengarini Variation 933

Sicilian Defense Big Clamp Formation 6

Sicilian Defense Snyder Variation 735

Sicilian Defense Lasker-Dunne Attack 446

Sicilian Defense Hyperaccelerated Pterodactyl 449

Sicilian Defense Richter-Rauzer Variation 537

Sicilian Defense Boleslavsky Variation 83

Sicilian Defense Accelerated Fianchetto 75

Sicilian Defense Prins Variation 248

Sicilian Defense Wing Gambit Deferred 109

Sicilian Defense Godiva Variation 365

Sicilian Defense Kronberger Variation 29

Sicilian Defense Portsmouth Gambit 64

Sicilian Defense Nimzo-American Variation 85

Sicilian Defense Venice Attack 49

Sicilian Defense Myers Attack 55

Sicilian Defense Gaw-Paw Variation 14

Sicilian Defense Kupreichik Variation 48

Sicilian Defense Quinteros Variation 43

Sicilian Defense Yates Variation 16

Sicilian Defense Halasz Gambit 42

Sicilian Defense Brick Variation 8

Sicilian Defense Polish Gambit 8

Sicilian Defense Magnus Smith Trap 23

Sicilian Defense Mongoose Variation 8

Sicilian Defense Grob Variation 12

Sicilian Defense Velimirovic Attack 14

Sicilian Defense King Davids Opening 11

Sicilian Defense Coles Sicilian Gambit 11

Sicilian Defense Rossolimo Variation 7

Sicilian Defense Euwe Attack 3

Sicilian Defense Amazon Attack 4

Sicilian Defense Kopec System 2

Sicilian Defense Gloria Variation 1

Sicilian Defense Double-Dutch Gambit 1

French Defense Classical Variation 2285

French Defense La Bourdonnais Variation 1862

French Defense Winawer Variation 2690

French Defense Normal Variation 3128

French Defense Exchange Variation 8486

French Defense Henneberger Variation 27

French Defense Other variations 1999

French Defense Paulsen Variation 501

French Defense Advance Variation 10950

French Defense Tarrasch Variation 3787

French Defense Knight Variation 8775

French Defense Schlechter Variation 630

French Defense Kings Indian Attack 1164

French Defense Two Knights Variation 1185

French Defense Chigorin Variation 299

French Defense Franco-Sicilian Defense 786

French Defense Steinitz Attack 610

French Defense Steinitz Variation 716

French Defense Steiner Variation 1178

French Defense Wing Gambit 367

French Defense Queens Knight 1441

French Defense Orthoschnapp Gambit 328

French Defense Rubinstein Variation 2370

French Defense St George Defense 217

French Defense Burn Variation 361

French Defense Alapin Gambit 106

French Defense Horwitz Attack 572

French Defense Alekhine-Chatard Attack 263

French Defense Franco-Hiva Gambit 94

French Defense Perseus Gambit 110

French Defense Diemer-Duhm Gambit Accepted 167

French Defense MacCutcheon Variation 199

French Defense Diemer-Duhm Gambit 62

French Defense Pelikan Variation 105

French Defense Reti-Spielmann Attack 130

French Defense Mediterranean Defense 338

French Defense Bird Invitation 53

French Defense Carlson Gambit 50

French Defense Franco-Hiva Gambit Accepted 17

French Defense Morphy Gambit 3

French Defense Baeuerle Gambit 14

French Defense Reversed Philidor Formation 4

French Defense Banzai-Leong Gambit 10

Italian Game Two Knights Defense 12807

Italian Game Giuoco Pianissimo 6412

Italian Game Classical Variation 7666

Italian Game Blackburne-Kostic Gambit 1824

Italian Game Scotch Gambit 2130

Italian Game Other variations 2691

Italian Game Giuoco Piano 4051

Italian Game Evans Gambit 2647

Italian Game Anti-Fried Liver Defense 5540

Italian Game Rousseau Gambit 783

Italian Game Rosentreter Gambit 246

Italian Game Schilling-Kostic Gambit 266

Italian Game Evans Gambit Declined 374

Italian Game Scotch Gambit Declined 186

Italian Game Paris Defense 390

Italian Game Birds Attack 102

Italian Game Hungarian Defense 1226

Italian Game Scotch Invitation Declined 29

Italian Game Deutz Gambit 267

Italian Game Jerome Gambit 135

Italian Game Evans Gambit Accepted 13

Caro-Kann Defense Advance Variation 8770

Caro-Kann Defense Exchange Variation 4226

Caro-Kann Defense Classical Variation 2967

Caro-Kann Defense Other variations 12512

Caro-Kann Defense Two Knights Attack 2938

Caro-Kann Defense Hillbilly Attack 1824

Caro-Kann Defense Accelerated Panov Attack 1467

Caro-Kann Defense Panov Attack 2602

Caro-Kann Defense Tartakower Variation 1125

Caro-Kann Defense Gurgenidze System 133

Caro-Kann Defense Goldman Variation 170

Caro-Kann Defense Rasa-Studier Gambit 172

Caro-Kann Defense Ulysses Gambit 110

Caro-Kann Defense Maroczy Variation 1198

Caro-Kann Defense Bronstein-Larsen Variation 193

Caro-Kann Defense Main Line 720

Caro-Kann Defense Karpov Variation 812

Caro-Kann Defense Breyer Variation 717

Caro-Kann Defense De Bruycker Defense 19

Caro-Kann Defense Campomanes Attack 339

Caro-Kann Defense Finnish Variation 19

Caro-Kann Defense von Hennig Gambit 121

Caro-Kann Defense Alekhine Gambit 126

Caro-Kann Defense Modern Variation 116

Caro-Kann Defense Euwe Attack 185

Caro-Kann Defense Gurgenidze Counterattack 29

Caro-Kann Defense Masi Variation 19

Caro-Kann Defense Forgacs Variation 188

Caro-Kann Defense Hector Gambit 20

Caro-Kann Defense Mieses Gambit 26

Caro-Kann Defense Toikkanen Gambit 18

Caro-Kann Defense Labahn Attack 9

Caro-Kann Defense Apocalypse Attack 102

Caro-Kann Defense Scorpion-Horus Gambit 1

Caro-Kann Defense Advance 7

Caro-Kann Defense Spike Variation 7

Caro-Kann Defense Panov-Botvinnik 3

Caro-Kann Defense Massachusetts Defense 2

Caro-Kann Defense Edinburgh Variation 5

Scandinavian Defense Main Line 6490

Scandinavian Defense Modern Variation 7018

Scandinavian Defense Richter Variation 78

Scandinavian Defense Marshall Variation 753

Scandinavian Defense Mieses-Kotroc Variation 8409

Scandinavian Defense Valencian Variation 820

Scandinavian Defense Other variations 4092

Scandinavian Defense Panov Transfer 957

Scandinavian Defense Lasker Variation 161

Scandinavian Defense Blackburne Gambit 797

Scandinavian Defense Icelandic-Palme Gambit 1230

Scandinavian Defense Blackburne-Kloosterboer Gambit 441

Scandinavian Defense Boehnke Gambit 610

Scandinavian Defense Kiel Variation 131

Scandinavian Defense Anderssen Counterattack 128

Scandinavian Defense Gubinsky-Melts Defense 1590

Scandinavian Defense Portuguese Gambit 173

Scandinavian Defense Bronstein Variation 220

Scandinavian Defense Kadas Gambit 18

Scandinavian Defense Portuguese Variation 495

Scandinavian Defense Kloosterboer Gambit 334

Scandinavian Defense Classical Variation 163

Scandinavian Defense Schiller-Pytel Variation 97

Scandinavian Defense Grunfeld Variation 2

Scandinavian Defense Zilbermints Gambit 3

English Opening Carls-Bremen System 483

English Opening Anglo-Indian Defense 3925

English Opening Kings English Variation 10295

English Opening Other variations 905

English Opening Symmetrical Variation 4785

English Opening Caro-Kann Defensive System 970

English Opening Anglo-Scandinavian Defense 1397

English Opening Agincourt Defense 2433

English Opening Great Snake Variation 921

English Opening The Whale 751

English Opening Anglo-Grunfeld Defense 199

English Opening Jaenisch Gambit 90

English Opening Mikenas-Carls Variation 415

English Opening Anglo-Dutch Defense 413

English Opening Myers Gambit 12

English Opening Neo-Catalan 57

English Opening Anglo-Lithuanian Variation 183

English Opening Myers Defense 17

English Opening Four Knights System 250

English Opening Achilles-Omega Gambit 9

English Opening Mikenas-Carls 53

English Opening Wade Gambit 4

English Opening Anglo-Dutch Variation 10

English Opening Adorjan Defense 10

English Opening Neo-Catalan Declined 10

English Opening Symmetrical 3

English Opening Kings English 11

English Opening Drill Variation 12

English Opening Romanishin Gambit 7

English Opening Wing Gambit 4

Ruy Lopez Bird Variation 1452

Ruy Lopez Exchange Variation 2728

Ruy Lopez Steinitz Defense 4766

Ruy Lopez Morphy Defense 5485

Ruy Lopez Other variations 989

Ruy Lopez Berlin Defense 5083

Ruy Lopez Closed 1007

Ruy Lopez Nurnberg Variation 229

Ruy Lopez Cozio Defense 1387

Ruy Lopez Marshall Attack 344

Ruy Lopez Classical Variation 2853

Ruy Lopez Open 493

Ruy Lopez Exchange 7

Ruy Lopez Schliemann Defense 1158

Ruy Lopez Vinogradov Variation 53

Ruy Lopez Spanish Countergambit 83

Ruy Lopez Birds Defense Deferred 15

Ruy Lopez Lucena Variation 36

Ruy Lopez Fianchetto Defense 92

Ruy Lopez Open Berlin Defense 70

Ruy Lopez Classical Defense 20

Ruy Lopez Noahs Ark Trap 20

Ruy Lopez Central Countergambit 21

Ruy Lopez Alapin Defense 40

Ruy Lopez Bulgarian Variation 5

Ruy Lopez Rotary-Albany Gambit 14

Ruy Lopez Retreat Variation 2

Ruy Lopez Halloween Attack 2

Ruy Lopez Brentano Gambit 2

Ruy Lopez Old Steinitz Defense 3

Ruy Lopez Pollock Defense 4

Ruy Lopez Closed Berlin Defense 1

Indian Defense Other variations 12293

Indian Defense London System 1333

Indian Defense West Indian Defense 459

Indian Defense Wade-Tartakower Defense 636

Indian Defense Seirawan Attack 303

Indian Defense Budapest Defense 3896

Indian Defense Normal Variation 1492

Indian Defense Anti-Nimzo-Indian 747

Indian Defense Reversed Chigorin Defense 274

Indian Defense Spielmann-Indian 557

Indian Defense Knights Variation 767

Indian Defense Przepiorka Variation 297

Indian Defense Pawn Push Variation 232

Indian Defense Omega Gambit 150

Indian Defense Polish Variation 20

Indian Defense Kings Indian Variation 102

Indian Defense Tartakower Attack 262

Indian Defense Gibbins-Weidenhagen Gambit 6

Indian Defense Gibbins-Wiedenhagen Gambit 5

Indian Defense Maddigan Gambit 65

Indian Defense Devin Gambit 39

Indian Defense Gibbins-Wiedenhagen Gambit Accepted 29

Indian Defense Anti-Grunfeld 76

Indian Defense Czech-Indian 101

Indian Defense Pseudo-Benko 41

Indian Defense Colle System 97

Indian Defense Paleface Attack 23

Indian Defense Pyrenees Gambit 22

Indian Defense Dzindzi-Indian Defense 19

Indian Defense Medusa Gambit 14

Indian Defense Lazard Gambit 7

Indian Defense Gibbins-Weidenhagen Gambit Accepted 5

Indian Defense Dory Indian 4

Indian Defense Gedult Attack 7

Scotch Game Mieses Variation 514

Scotch Game Scotch Gambit 4715

Scotch Game Other variations 8293

Scotch Game Haxo Gambit 997

Scotch Game Goring Gambit 1389

Scotch Game Schmidt Variation 2276

Scotch Game Classical Variation 3375

Scotch Game Benima Defense 773

Scotch Game Lolli Variation 390

Scotch Game Romanishin Variation 9

Scotch Game Potter Variation 357

Scotch Game Paulsen Attack 59

Scotch Game Blumenfeld Attack 131

Scotch Game Relfsson Gambit 66

Scotch Game Modern Defense 203

Scotch Game Steinitz Variation 124

Scotch Game Ghulam-Kassim Variation 78

Scotch Game Horwitz Attack 24

Scotch Game Malaniuk Variation 192

Scotch Game Alekhine Gambit 26

Scotch Game Cochrane-Shumov Defense 7

Scotch Game Vitzthum Attack 50

Scotch Game Braune Variation 10

Scotch Game Fraser Variation 3

Scotch Game Tartakower Variation 6

Scotch Game Meitner Variation 18

Scotch Game Napoleon Gambit 5

Scotch Game Cochrane Variation 4

Scotch Game Paulsen Variation 3

Scotch Game Hanneken Variation 1

Russian Game Italian Variation 3854

Russian Game Three Knights Game 3383

Russian Game Other variations 2779

Russian Game Stafford Gambit 4467

Russian Game Classical Attack 888

Russian Game Modern Attack 1575

Russian Game Cochrane Gambit 291

Russian Game Damiano Variation 641

Russian Game Nimzowitsch Attack 678

Russian Game Cozio Attack 427

Russian Game Millennium Attack 82

Russian Game Paulsen Attack 99

Russian Game French Attack 233

Russian Game Karklins-Martinovsky Variation 41

Russian Game Kaufmann Attack 20

Philidor Defense Lion Variation 717

Philidor Defense Other variations 11242

Philidor Defense Exchange Variation 4003

Philidor Defense Philidor Countergambit 166

Philidor Defense Morphy Gambit 360

Philidor Defense Steinitz Variation 165

Philidor Defense Hanham Variation 449

Philidor Defense Nimzowitsch Variation 359

Philidor Defense Bird Gambit 153

Philidor Defense Lopez Countergambit 193

Philidor Defense Larsen Variation 139

Philidor Defense Albin-Blackburne Gambit 69

Philidor Defense Nimzowitsch 1

Philidor Defense Philidor Gambit 13

Philidor Defense Boden Variation 9

Philidor Defense Paulsen Attack 9

Philidor Defense Hanham 12

Modern Defense Other variations 9626

Modern Defense Two Knights Variation 669

Modern Defense Three Pawns Attack 385

Modern Defense Pseudo-Austrian Attack 230

Modern Defense Standard Line 457

Modern Defense Mongredien Defense 325

Modern Defense Standard Defense 789

Modern Defense Modern Pterodactyl 51

Modern Defense Kotov Variation 139

Modern Defense Averbakh System 281

Modern Defense Gellers System 233

Modern Defense Lizard Defense 32

Modern Defense Bishop Attack 166

Modern Defense Norwegian Defense 166

Modern Defense Beefeater Variation 48

Modern Defense Averbakh Variation 15

Modern Defense Semi-Averbakh Variation 6

Modern Defense Fianchetto Gambit 3

Modern Defense Westermann Gambit 1

Modern Defense Randspringer Variation 18

Modern Defense Gurgenidze Defense 6

Modern Defense Pterodactyl Variation 4

Modern Defense Neo-Modern Defense 20

Modern Defense Wind Gambit 8

Zukertort Opening Black Mustang Defense 1048

Zukertort Opening Sicilian Invitation 1226

Zukertort Opening Nimzo-Larsen Variation 352

Zukertort Opening Wade Defense 149

Zukertort Opening Lemberger Gambit 308

Zukertort Opening Queens Gambit Invitation 766

Zukertort Opening Pirc Invitation 556

Zukertort Opening Grunfeld Reversed 65

Zukertort Opening Tennison Gambit 2600

Zukertort Opening Other variations 1509

Zukertort Opening Polish Defense 44

Zukertort Opening Kingside Fianchetto 725

Zukertort Opening Lisitsyn Gambit Deferred 44

Zukertort Opening Old Indian Attack 346

Zukertort Opening Dutch Variation 425

Zukertort Opening The Walrus 81

Zukertort Opening Ross Gambit 286

Zukertort Opening Reversed Mexican Defense 202

Zukertort Opening Vos Gambit 63

Zukertort Opening Slav Invitation 526

Zukertort Opening Basman Defense 38

Zukertort Opening Queenside Fianchetto Variation 474

Zukertort Opening Herrstrom Gambit 59

Zukertort Opening Ware Defense 10

Zukertort Opening Arctic Defense 58

Zukertort Opening Quiet System 156

Zukertort Opening Reversed Grunfeld 26

Zukertort Opening The Potato 9

Zukertort Opening Lisitsyn Gambit 106

Zukertort Opening Santasieres Folly 25

Zukertort Opening St George Defense 24

Zukertort Opening Double Fianchetto Attack 14

Zukertort Opening Speelsmet Gambit 11

Bishops Opening Boden-Kieseritzky Gambit 268

Bishops Opening Vienna Hybrid 1837

Bishops Opening Ponziani Gambit 740

Bishops Opening Boi Variation 1268

Bishops Opening Other variations 3309

Bishops Opening Lewis Gambit 150

Bishops Opening Berlin Defense 3054

Bishops Opening Philidor Counterattack 474

Bishops Opening Urusov Gambit 553

Bishops Opening Philidor Variation 64

Bishops Opening Stein Gambit 41

Bishops Opening Khan Gambit 68

Bishops Opening Calabrese Countergambit 187

Bishops Opening Warsaw Gambit 48

Bishops Opening McDonnell Gambit 12

Bishops Opening Anderssen Gambit 11

Bishops Opening Kitchener Folly 4

Bishops Opening Lopez Variation 4

Bishops Opening Lewis Countergambit 1

Bishops Opening Horwitz Gambit 4

Bishops Opening Pachman Gambit 1

Slav Defense Other variations 4328

Slav Defense Schlechter Variation 228

Slav Defense Quiet Variation 859

Slav Defense Geller Gambit 226

Slav Defense Diemer Gambit 133

Slav Defense Winawer Countergambit 51

Slav Defense Three Knights Variation 1403

Slav Defense Czech Variation 210

Slav Defense Alekhine Variation 76

Slav Defense Exchange Variation 2145

Slav Defense Modern Line 1385

Slav Defense Bonet Gambit 142

Slav Defense Breyer Variation 28

Slav Defense Soultanbeieff Variation 23

Slav Defense Chameleon Variation 214

Slav Defense Slav Gambit 232

Slav Defense Chebanenko Variation 32

Slav Defense Steiner Variation 35

Slav Defense Two Knights Attack 60

Slav Defense Alapin Variation 51

Slav Defense Suchting Variation 8

Slav Defense Smyslov Variation 7

Pirc Defense Classical Variation 2252

Pirc Defense Other variations 7582

Pirc Defense Byrne Variation 664

Pirc Defense Austrian Attack 867

Pirc Defense Kholmov System 252

Pirc Defense Bayonet Attack 61

Pirc Defense 150 Attack 23

Pirc Defense Roscher Gambit 130

Pirc Defense Chinese Variation 19

Pirc Defense Sveshnikov System 18

Vienna Game Other variations 1647

Vienna Game Stanley Variation 2360

Vienna Game Vienna Gambit 3750

Vienna Game Omaha Gambit 228

Vienna Game Max Lange Defense 1164

Vienna Game Mengarini Variation 154

Vienna Game Anderssen Defense 956

Vienna Game Frankenstein-Dracula Variation 324

Vienna Game Heyde Variation 4

Vienna Game Falkbeer Variation 423

Vienna Game Giraffe Attack 21

Vienna Game Mieses Variation 177

Vienna Game Paulsen Variation 158

Vienna Game Hamppe-Meitner Variation 7

Vienna Game Fyfe Gambit 6

Vienna Game Philidor Countergambit 3

Vienna Game Zhuravlev Countergambit 1

Benoni Defense Benoni-Indian Defense 383

Benoni Defense Old Benoni 3790

Benoni Defense Other variations 555

Benoni Defense French Benoni 551

Benoni Defense Benoni Gambit Accepted 1551

Benoni Defense Classical Variation 167

Benoni Defense Hromadka System 288

Benoni Defense Weenink Variation 57

Benoni Defense Kings Pawn Line 225

Benoni Defense Knights Tour Variation 21

Benoni Defense Czech Benoni Defense 91

Benoni Defense Modern Variation 437

Benoni Defense Cormorant Gambit 25

Benoni Defense Classical 7

Benoni Defense Four Pawns Attack 53

Benoni Defense Uhlmann Variation 14

Benoni Defense Mikenas Variation 9

Benoni Defense Kings Indian System 10

Benoni Defense Taimanov Variation 34

Benoni Defense Benoni Gambit 35

Benoni Defense Fianchetto Variation 29

Benoni Defense Hawk Variation 7

Benoni Defense Semi-Benoni 60

Benoni Defense Pawn Storm Variation 12

Benoni Defense Woozle 7

Benoni Defense Franco-Sicilian Hybrid 3

Benoni Defense Snail Variation 4

Benoni Defense Benoni-Staunton Gambit 3

Nimzowitsch Defense Other variations 1298

Nimzowitsch Defense Scandinavian Variation 1963

Nimzowitsch Defense Kennedy Variation 1677

Nimzowitsch Defense Franco-Nimzowitsch Variation 436

Nimzowitsch Defense Colorado Countergambit Accepted 290

Nimzowitsch Defense Colorado Countergambit 202

Nimzowitsch Defense Declined Variation 934

Nimzowitsch Defense Williams Variation 378

Nimzowitsch Defense Mikenas Variation 264

Nimzowitsch Defense Pseudo-Spanish Variation 89

Nimzowitsch Defense French Connection 96

Nimzowitsch Defense Pirc Connection 16

Nimzowitsch Defense El Columpio Defense 33

Nimzowitsch Defense Woodchuck Variation 20

Nimzowitsch Defense Breyer Variation 28

Nimzowitsch Defense Hornung Gambit 4

Nimzowitsch Defense Neo-Mongoloid Defense 7

Alekhine Defense Scandinavian Variation 2026

Alekhine Defense Four Pawns Attack 536

Alekhine Defense Two Pawn Attack 646

Alekhine Defense Other variations 1208

Alekhine Defense Exchange Variation 501

Alekhine Defense Balogh Variation 149

Alekhine Defense Normal Variation 602

Alekhine Defense Samisch Attack 231

Alekhine Defense Mokele Mbembe 105

Alekhine Defense Modern Variation 734

Alekhine Defense Krejcik Variation 102

Alekhine Defense Two Pawns Attack 145

Alekhine Defense Maroczy Variation 376

Alekhine Defense OSullivan Gambit 69

Alekhine Defense Brooklyn Variation 92

Alekhine Defense Spielmann Gambit 24

Alekhine Defense The Squirrel 25

Alekhine Defense Hunt Variation 44

Alekhine Defense Steiner Variation 16

Alekhine Defense Kmoch Variation 11

Alekhine Defense Welling Variation 4

Nimzo-Larsen Attack Classical Variation 2232

Nimzo-Larsen Attack English Variation 365

Nimzo-Larsen Attack Modern Variation 3049

Nimzo-Larsen Attack Indian Variation 790

Nimzo-Larsen Attack Other variations 865

Nimzo-Larsen Attack Symmetrical Variation 147

Nimzo-Larsen Attack Pachman Gambit 5

Nimzo-Larsen Attack Dutch Variation 78

Nimzo-Larsen Attack Graz Attack 14

Nimzo-Larsen Attack Norfolk Gambit 11

Nimzo-Larsen Attack Polish Variation 12

Nimzo-Larsen Attack Spike Variation 38

Nimzo-Larsen Attack Ringelbach Gambit 2

Horwitz Defense Other variations 7196

Owen Defense Other variations 6214

Owen Defense Matovinsky Gambit 26

Owen Defense Smith Gambit 163

Owen Defense Hekili-Loa Gambit 3

Owen Defense Wind Gambit 1

Owen Defense Naselwaus Gambit 7

Bird Opening Dutch Variation 2084

Bird Opening Other variations 2429

Bird Opening Froms Gambit 843

Bird Opening Lasker Variation 91

Bird Opening Schlechter Gambit 98

Bird Opening Williams Gambit 116

Bird Opening Wagner-Zwitersch Gambit 49

Bird Opening Myers Defense 8

Bird Opening Sturm Gambit 55

Bird Opening Mujannah 15

Bird Opening Hobbs Gambit 26

Bird Opening Horsefly Defense 20

Bird Opening Lasker Gambit 11

Bird Opening Hobbs-Zilbermints Gambit 5

Bird Opening Thomas Gambit 1

Bird Opening Batavo-Polish Attack 1

Bird Opening Double Duck Formation 3

Dutch Defense Queens Knight Variation 938

Dutch Defense Raphael Variation 497

Dutch Defense Hopton Attack 317

Dutch Defense Other variations 1867

Dutch Defense Janzen-Korchnoi Gambit 18

Dutch Defense Normal Variation 301

Dutch Defense Fianchetto Variation 14

Dutch Defense Staunton Gambit 225

Dutch Defense Fianchetto Attack 78

Dutch Defense Korchnoi Attack 22

Dutch Defense Classical Variation 379

Dutch Defense Blackmars Second Gambit 52

Dutch Defense Leningrad Variation 127

Dutch Defense Rubinstein Variation 430

Dutch Defense Krejcik Gambit 56

Dutch Defense Staunton Gambit Accepted 124

Dutch Defense Semi-Leningrad Variation 28

Dutch Defense Hevendehl Gambit 1

Dutch Defense Nimzo-Dutch Variation 12

Dutch Defense Bellon Gambit 17

Dutch Defense Stonewall Variation 46

Dutch Defense Stonewall 1

Dutch Defense Krause Variation 5

Dutch Defense Manhattan Gambit 16

Dutch Defense Alapin Variation 11

Dutch Defense Blackburne Variation 8

Dutch Defense Spielmann Gambit 3

Dutch Defense Hort-Antoshin System 1

Dutch Defense Kingfisher Gambit 6

Dutch Defense Omega-Isis Gambit 1

Dutch Defense Alekhine Variation 2

Nimzo-Indian Defense Normal Variation 517

Nimzo-Indian Defense Spielmann Variation 152

Nimzo-Indian Defense Leningrad Variation 734

Nimzo-Indian Defense Romanishin Variation 78

Nimzo-Indian Defense Other variations 922

Nimzo-Indian Defense Three Knights Variation 835

Nimzo-Indian Defense Classical Variation 1190

Nimzo-Indian Defense Kmoch Variation 204

Nimzo-Indian Defense Normal Line 173

Nimzo-Indian Defense Ragozin Defense 15

Nimzo-Indian Defense Hubner Variation 115

Nimzo-Indian Defense Reshevsky Variation 50

Nimzo-Indian Defense Samisch Variation 479

Nimzo-Indian Defense Ragozin Variation 4

Nimzo-Indian Defense Simagin Variation 11

Nimzo-Indian Defense St Petersburg Variation 70

Nimzo-Indian Defense Fischer Variation 20

Nimzo-Indian Defense Mikenas Attack 12

Semi-Slav Defense Other variations 1209

Semi-Slav Defense Quiet Variation 76

Semi-Slav Defense Anti-Moscow Gambit 109

Semi-Slav Defense Bogoljubov Variation 41

Semi-Slav Defense Noteboom Variation 268

Semi-Slav Defense Stoltz Variation 157

Semi-Slav Defense Marshall Gambit 391

Semi-Slav Defense Accelerated Move Order 983

Semi-Slav Defense Accepted 64

Semi-Slav Defense Accepted Other variations 64

Semi-Slav Defense Botvinnik Variation 147

Semi-Slav Defense Normal Variation 212

Semi-Slav Defense Meran Variation 117

Semi-Slav Defense Main Line 762

Semi-Slav Defense Accelerated Meran Variation 44

Semi-Slav Defense Chigorin Defense 142

Semi-Slav Defense Romih Variation 26

Semi-Slav Defense Semi-Meran Variation 14

Semi-Slav Defense Gunderam Gambit 4

Semi-Slav Defense Rubinstein System 4

Semi-Slav Defense Stonewall Defense 9

Semi-Slav Defense Anti-Noteboom 1

Center Game Other variations 901

Center Game Normal Variation 1144

Center Game Lanc-Arnold Gambit 83

Center Game Kieseritzky Variation 698

Center Game Paulsen Attack Variation 633

Center Game Hall Variation 96

Center Game Berger Variation 377

Center Game von der Lasa Gambit 245

Center Game Halasz-McDonnell Gambit 95

Center Game Ross Gambit 22

Center Game Accepted 58

Center Game Accepted Other variations 58

Center Game lHermet Variation 1

Center Game Charousek Variation 1

Hungarian Opening Other variations 2779

Hungarian Opening Slav Formation 279

Hungarian Opening Indian Defense 322

Hungarian Opening Catalan Formation 205

Hungarian Opening Sicilian Invitation 199

Hungarian Opening Symmetrical Variation 172

Hungarian Opening Bucker Gambit 7

Hungarian Opening Dutch Defense 54

Hungarian Opening Reversed Modern Defense 88

Hungarian Opening Reversed Alekhine 37

Hungarian Opening Reversed Norwegian Defense 5

Hungarian Opening Myers Defense 4

Hungarian Opening Van Kuijk Gambit 6

Ponziani Opening Other variations 1148

Ponziani Opening Jaenisch Counterattack 1625

Ponziani Opening Neumann Gambit 365

Ponziani Opening Vukovic Gambit 45

Ponziani Opening Ponziani Countergambit 74

Ponziani Opening Romanishin Variation 25

Ponziani Opening Spanish Variation 45

Ponziani Opening Caro Gambit 27

Ponziani Opening Leonhardt Variation 11

Ponziani Opening Steinitz Variation 19

Ponziani Opening Reti Variation 2

Englund Gambit Other variations 3321

Englund Gambit Complex 4304

Englund Gambit Complex Stockholm Variation 219

Englund Gambit Complex Soller Gambit Deferred 162

Englund Gambit Complex Englund Gambit 2114

Englund Gambit Complex Declined 835

Englund Gambit Complex Declined Other variations 826

Englund Gambit Complex Hartlaub-Charlick Gambit 1008

Englund Gambit Complex Zilbermints Gambit 80

Englund Gambit Complex Soller Gambit 495

Englund Gambit Declined Reversed Alekhine 131

Englund Gambit Complex Felbecker Gambit 223

Englund Gambit Declined Reversed Krebs 125

Englund Gambit Complex Declined Diemer Counterattack 9

Englund Gambit Declined Reversed Brooklyn 17

Englund Gambit Complex Mosquito Gambit 3

Englund Gambit Declined Reversed Mokele Mbembe 39

Elephant Gambit Other variations 1629

Elephant Gambit Paulsen Countergambit 1363

Elephant Gambit Wasp Variation 29

Elephant Gambit Maroczy Gambit 112

Grunfeld Defense Exchange Variation 1205

Grunfeld Defense Three Knights Variation 1125

Grunfeld Defense Russian Variation 94

Grunfeld Defense Opocensky Variation 20

Grunfeld Defense Brinckmann Attack 120

Grunfeld Defense Stockholm Variation 240

Grunfeld Defense Smyslov Defense 23

Grunfeld Defense Other variations 215

Grunfeld Defense Counterthrust Variation 17

Grunfeld Defense Zaitsev Gambit 18

Grunfeld Defense Lutikov Variation 17

Grunfeld Defense Lundin Variation 1

Grunfeld Defense Botvinnik Variation 3

Grunfeld Defense Pachman Variation 2

Grunfeld Defense Makogonov Variation 5

Grunfeld Defense Flohr Variation 4

Blackmar-Diemer Gambit Other variations 465

Blackmar-Diemer Gambit Accepted 339

Blackmar-Diemer Gambit Accepted Ryder Gambit 127

Blackmar-Diemer Gambit Tartakower Variation 34

Blackmar-Diemer Gambit Ziegler Defense 79

Blackmar-Diemer Gambit Ryder Gambit 584

Blackmar-Diemer Gambit Vienna Variation 146

Blackmar-Diemer Gambit Declined 289

Blackmar-Diemer Gambit Declined Vienna Defense 26

Blackmar-Diemer Gambit Teichmann Variation 217

Blackmar-Diemer Gambit Accepted Ziegler Defense 40

Blackmar-Diemer Gambit Zeller Defense 204

Blackmar-Diemer Gambit Netherlands Variation 162

Blackmar-Diemer Gambit Accepted Teichmann Defense 87

Blackmar-Diemer Gambit Euwe Defense 237

Blackmar-Diemer Gambit Gedult Gambit 355

Blackmar-Diemer Gambit Declined Weinsbach Declination 67

Blackmar-Diemer Gambit Declined OKelly Defense 65

Blackmar-Diemer Gambit von Popiel Gambit 249

Blackmar-Diemer Gambit Fritz Attack 38

Blackmar-Diemer Gambit Ritter Defense 5

Blackmar-Diemer Gambit Accepted Pietrowsky Defense 11

Blackmar-Diemer Gambit Declined Elbert Countergambit 17

Blackmar-Diemer Gambit Accepted Euwe Defense 54

Blackmar-Diemer Gambit Bogoljubov Variation 28

Blackmar-Diemer Gambit Lemberger Countergambit 69

Blackmar-Diemer Gambit Diemer-Rosenberg Attack 36

Blackmar-Diemer Gambit Declined Brombacher Countergambit 11

Blackmar-Diemer Gambit Blackmar Gambit 102

Blackmar-Diemer Gambit Declined Langeheinecke Defense 23

Blackmar-Diemer Gambit Reversed Albin Countergambit 18

Blackmar-Diemer Gambit Pietrowsky Defense 25

Blackmar-Diemer Gambit Rasa-Studier Gambit 31

Blackmar-Diemer Gambit Declined Lamb Defense 67

Blackmar-Diemer Gambit Accepted Gunderam Defense 8

Blackmar-Diemer Gambit Kaulich Defense 5

Blackmar-Diemer Gambit Declined Weinsbach Defense 10

Blackmar-Diemer Gambit Accepted Bogoljubow Defense 5

Blackmar-Diemer Gambit Accepted Other variations 3

Blackmar-Diemer Gambit Declined Langeheinicke Defense 3

Blackmar-Diemer Gambit Accepted Kaulich Defense 2

Blackmar-Diemer Gambit Accepted Ritter Defense 1

Blackmar-Diemer Gambit Accepted Tartakower Variation 1

Polish Opening Other variations 1974

Polish Opening Czech Defense 350

Polish Opening Outflank Variation 66

Polish Opening Baltic Defense 62

Polish Opening Tartakower Gambit 18

Polish Opening Grigorian Variation 25

Polish Opening Birmingham Gambit 43

Polish Opening Schiffler-Sokolsky Variation 60

Polish Opening Bugayev Attack 145

Polish Opening Kings Indian Variation 147

Polish Opening German Defense 9

Polish Opening Queens Indian Variation 12

Polish Opening Queenside Defense 6

Polish Opening Bugayev Advance Variation 34

Polish Opening Symmetrical Variation 33

Polish Opening Zukertort System 24

Polish Opening Dutch Defense 26

Polish Opening Myers Variation 6

Polish Opening Rooks Swap Line 7

Polish Opening Schuehler Gambit 1

Danish Gambit Other variations 2932

Danish Gambit Accepted Copenhagen Defense 593

Danish Gambit Accepted Chigorin Defense 73

Danish Gambit Accepted Schlechter Defense 104

Danish Gambit Declined 451

Danish Gambit Declined Sorensen Defense 451

Danish Gambit Accepted Classical Defense 294

Danish Gambit Accepted Svenonius Defense 4

Rat Defense Harmonist 693

Rat Defense Spike Attack 5

Rat Defense Antal Defense 390

Rat Defense Small Center Defense 1165

Rat Defense Accelerated Gurgenidze 54

Rat Defense Balogh Defense 136

Rat Defense English Rat 384

Rat Defense Petruccioli Attack 4

Rat Defense Fuller Gambit 1

Kings Gambit Other variations 2761

Kings Gambit Accepted Fischer Defense 1741

Kings Gambit Accepted Cunningham Defense 1157

Kings Gambit Accepted Bishops Gambit 1183

Kings Gambit Accepted Kings Knights Gambit 1629

Kings Gambit Declined 6520

Kings Gambit Declined Falkbeer Countergambit 1633

Kings Gambit Declined Queens Knight Defense 2737

Kings Gambit Accepted Schallopp Defense 1042

Kings Gambit Declined Classical Variation 790

Kings Gambit Declined Petrovs Defense 221

Kings Gambit Accepted MacLeod Defense 2040

Kings Gambit Accepted Bonsch-Osmolovsky Variation 175

Kings Gambit Accepted Gaga Gambit 2

Kings Gambit Accepted Modern Defense 1102

Kings Gambit Declined Miles Defense 179

Kings Gambit Declined Panteldakis Countergambit 109

Kings Gambit Accepted Salvio Gambit 233

Kings Gambit Accepted Blachly Gambit 259

Kings Gambit Declined Norwalde Variation 47

Kings Gambit Accepted Muzio Gambit 309

Kings Gambit Accepted Double Muzio Gambit 68

Kings Gambit Accepted Hanstein Gambit 92

Kings Gambit Accepted Rosentreter Gambit 199

Kings Gambit Declined Falkbeer Countergambit Accepted 320

Kings Gambit Accepted Becker Defense 365

Kings Gambit Accepted Sorensen Gambit 50

Kings Gambit Accepted Polerio Gambit 127

Kings Gambit Accepted Other variations 18

Kings Gambit Accepted Allgaier Gambit 119

Kings Gambit Accepted Kieseritzky Gambit 362

Kings Gambit Accepted Quade Gambit 55

Kings Gambit Declined Keenes Defense 154

Kings Gambit Accepted Traditional Variation 67

Kings Gambit Declined Keene Defense 102

Kings Gambit Accepted Gianutio Countergambit 36

Kings Gambit Declined Mafia Defense 171

Kings Gambit Accepted Mason-Keres Gambit 38

Kings Gambit Accepted Greco Gambit 29

Kings Gambit Accepted Lolli Gambit 57

Kings Gambit Accepted Allgaier 19

Kings Gambit Accepted Ghulam-Kassim Gambit 61

Kings Gambit Declined Classical 51

Kings Gambit Accepted Kieseritzky 18

Kings Gambit Accepted Quaade Gambit 4

Kings Gambit Accepted Philidor Gambit 21

Kings Gambit Accepted Tumbleweed 4

Kings Gambit Accepted Mayet Gambit 13

Kings Gambit Accepted Stamma Gambit 5

Kings Gambit Declined Soller-Zilbermints Gambit 4

Kings Gambit Accepted Breyer Gambit 7

Kings Gambit Accepted Muzio Gambit Accepted 5

Kings Gambit Accepted Eisenberg Variation 8

Kings Gambit Accepted McDonnell Gambit 5

Kings Gambit Accepted Tartakower Gambit 6

Kings Gambit Accepted Paris Gambit 2

Kings Gambit Accepted Silberschmidt Gambit 3

Kings Gambit Accepted Kotov Gambit 1

Kings Gambit Accepted Carrera Gambit 1

Kings Gambit Accepted Wagenbach Defense 2

Kings Gambit Accepted Basman Gambit 1

Kings Gambit Accepted Dodo Variation 1

Kings Gambit Declined Zilbermints Double Countergambit 2

Trompowsky Attack Other variations 1575

Trompowsky Attack Raptor Variation 167

Trompowsky Attack Classical Defense 741

Trompowsky Attack Edge Variation 169

Trompowsky Attack Borg Variation 56

Trompowsky Attack Poisoned Pawn Variation 17

English Defense Other variations 2604

English Defense Perrin Variation 8

English Defense Hartlaub Gambit Accepted 3

English Defense Eastbourne Gambit 1

English Defense Hartlaub Gambit Declined 1

English Defense Poli Gambit 3

Grob Opening Other variations 1082

Grob Opening Grob Gambit 602

Grob Opening Spike 242

Grob Opening Grob Gambit Declined 74

Grob Opening Keene Defense 14

Grob Opening Double Grob 14

Grob Opening Spike Attack 39

Grob Opening Zilbermints Gambit 2

Grob Opening London Defense 1

Grob Opening Alessi Gambit 8

Grob Opening Romford Countergambit 3

Rapport-Jobava System Other variations 2041

Rapport-Jobava System with e6 23

Rapport-Jobava System with e6 Other variations 23

Tarrasch Defense Two Knights Variation 245

Tarrasch Defense Symmetrical Variation 647

Tarrasch Defense Other variations 449

Tarrasch Defense Classical Variation 101

Tarrasch Defense Tarrasch Gambit 2

Tarrasch Defense Prague Variation 78

Tarrasch Defense Schara Gambit 111

Tarrasch Defense Marshall Gambit 13

Tarrasch Defense von Hennig Gambit 24

Tarrasch Defense Rubinstein System 8

Tarrasch Defense Wagner Variation 11

Tarrasch Defense Dubov Tarrasch 12

Tarrasch Defense Grunfeld Gambit 2

Tarrasch Defense Swedish Variation 5

Catalan Opening Open Defense 350

Catalan Opening Closed 724

Catalan Opening Other variations 315

Catalan Opening Closed Variation 42

Catalan Opening Hungarian Gambit 1

Reti Opening Reti Accepted 515

Reti Opening Other variations 268

Reti Opening Advance Variation 376

Reti Opening Reversed Blumenfeld Gambit 83

Reti Opening Anglo-Slav Variation 99

Reti Opening Reti Gambit 18

Mieses Opening Other variations 990

Mieses Opening Reversed Rat 315

Mieses Opening Myers Spike Attack 1

London System Other variations 1072

London System Poisoned Pawn Variation 35

Torre Attack Fianchetto Defense 307

Torre Attack Classical Defense 442

Torre Attack Other variations 138

Torre Attack Wagner Gambit 29

Latvian Gambit Fraser Defense 105

Latvian Gambit Mason Countergambit 102

Latvian Gambit Mayet Attack 102

Latvian Gambit Greco Variation 49

Latvian Gambit Accepted Main Line 79

Latvian Gambit Other variations 371

Latvian Gambit Mlotkowski Variation 146

Latvian Gambit Accepted Bilguer Variation 60

Latvian Gambit Accepted Bronstein Gambit 1

Latvian Gambit Accepted Foltys-Leonhardt Variation 6

Latvian Gambit Accepted Bronstein Attack 19

Latvian Gambit Corkscrew Gambit 8

Latvian Gambit Accepted Nimzowitsch Attack 6

Latvian Gambit Clam Gambit 19

Latvian Gambit Accepted Leonhardt Variation 9

Latvian Gambit Accepted Foltys Variation 1

Latvian Gambit Corkscrew Countergambit 3

Saragossa Opening Other variations 833

Duras Gambit Other variations 819

Mikenas Defense Other variations 692

Mikenas Defense Lithuanian Variation 84

Mikenas Defense Cannstatter Variation 21

Mikenas Defense Pozarek Gambit 4

Czech Defense Other variations 746

Benko Gambit Other variations 520

Benko Gambit Declined 117

Benko Gambit Declined Hjrring Countergambit 14

Benko Gambit Zaitsev System 118

Benko Gambit Accepted Modern Variation 88

Benko Gambit Declined Main Line 59

Benko Gambit Accepted Dlugy Variation 36

Benko Gambit Declined Sosonko Variation 9

Benko Gambit Fianchetto Variation 2

Benko Gambit Zaitsev Variation 20

Benko Gambit Accepted Fianchetto Variation 23

Benko Gambit Accepted Pawn Return Variation 74

Benko Gambit Declined Quiet Line 14

Benko Gambit Declined Pseudo-Samisch 8

Benko Gambit Accepted King Walk Variation 36

Benko Gambit Declined Bishop Attack 13

Benko Gambit Accepted Yugoslav 25

Benko Gambit Accepted Other variations 11

Benko Gambit Nescafe Frappe Attack 7

Benko Gambit Accepted Central Storming Variation 2

Richter-Veresov Attack Other variations 610

Richter-Veresov Attack Richter Variation 17

Richter-Veresov Attack Boyce Defense 10

Richter-Veresov Attack Two Knights System 13

Richter-Veresov Attack Veresov Variation 2

Giuoco Piano Other variations 601

Neo-Grunfeld Defense Classical Variation 247

Neo-Grunfeld Defense Non- or Delayed Fianchetto 86

Neo-Grunfeld Defense Delayed Exchange Variation 48

Neo-Grunfeld Defense Ultra-delayed Exchange Variation 63

Neo-Grunfeld Defense Goglidze Attack 45

Neo-Grunfeld Defense Exchange Variation 28

Neo-Grunfeld Defense Ultra-Delayed Exchange Variation 6

Neo-Grunfeld Defense with Nf3 13

Neo-Grunfeld Defense Other variations 11

Neo-Grunfeld Defense with g3 1

Yusupov-Rubinstein System Other variations 503

Bogo-Indian Defense Grunfeld Variation 111

Bogo-Indian Defense Wade-Smyslov Variation 45

Bogo-Indian Defense Exchange Variation 146

Bogo-Indian Defense Nimzowitsch Variation 98

Bogo-Indian Defense Retreat Variation 22

Bogo-Indian Defense Vitolins Variation 35

Bogo-Indian Defense Other variations 2

Bogo-Indian Defense New England Variation 1

Bogo-Indian Defense Haiti Variation 7

Pterodactyl Defense Eastern 219

Pterodactyl Defense Queen Pterodactyl 49

Pterodactyl Defense Western 102

Pterodactyl Defense Austrian 4

Pterodactyl Defense Sicilian 40

Pterodactyl Defense Central 6

Pterodactyl Defense Fianchetto 11

Pterodactyl Defense Other variations 1

Anderssens Opening Other variations 423

Anderssens Opening Polish Gambit 3

Kadas Opening Other variations 353

Kadas Opening Schneider Gambit 2

Kadas Opening Myers Variation 2

Kadas Opening Beginners Trap 2

Kadas Opening Kadas Gambit 1

Slav Indian Other variations 349

Slav Indian Kudischewitsch Gambit 3

Blumenfeld Countergambit Other variations 334

Blumenfeld Countergambit Dus-Khotimirsky Variation 10

Blumenfeld Countergambit Spielmann Variation 1

Borg Defense Other variations 216

Borg Defense Borg Gambit 112

Borg Defense Troon Gambit 2

Borg Defense Zilbermints Gambit 1

Queens Gambit Other variations 328

Queens Gambit Declined Charousek Variation 196

Queens Gambit Accepted Classical Defense 213

Queens Gambit Declined Alapin Variation 58

Queens Gambit Declined Vienna Variation 521

Queens Gambit Accepted Alekhine Defense 58

Queens Gambit Declined Barmen Variation 191

Queens Gambit Accepted Gunsberg Defense 182

Queens Gambit Accepted Bogoljubov Defense 22

Queens Gambit Declined Cambridge Springs Defense 152

Queens Gambit Declined Semi-Slav 14

Queens Gambit Declined Neo-Orthodox Variation 212

Queens Gambit Accepted Janowski-Larsen Variation 85

Queens Gambit Declined Capablanca Variation 91

Queens Gambit Accepted Showalter Variation 217

Queens Gambit Accepted Mannheim Variation 35

Queens Gambit Declined Pillsbury Attack 4

Queens Gambit Declined Pseudo-Tarrasch Variation 78

Queens Gambit Declined Alekhine Variation 39

Queens Gambit Declined Tartakower Defense 140

Queens Gambit Accepted Slav Gambit 63

Queens Gambit Declined Westphalian Variation 18

Queens Gambit Declined Lasker Defense 54

Queens Gambit Accepted Linares Variation 8

Queens Gambit Declined Anti-Tartakower Variation 56

Queens Gambit Declined Manhattan Variation 31

Queens Gambit Accepted Smyslov Variation 15

Queens Gambit Accepted Schwartz Defense 8

Queens Gambit Accepted Godes Variation 11

Queens Gambit Accepted Bogoljubow Defense 1

Queens Gambit Declined Zilbermints Gambit 4

Queens Gambit Declined Spielmann Variation 1

Queens Gambit Accepted Winawer Defense 17

Queens Gambit Declined Knight Defense 1

Queens Gambit Accepted Furman Variation 3

Queens Gambit Declined Semmering Variation 1

Polish Defense Other variations 310

Polish Defense Spassky Gambit Accepted 13

Lion Defense Anti-Philidor 189

Lion Defense Lions Jaw 120

Lion Defense Bayonet Attack 8

Canard Opening Other variations 272

Mexican Defense Other variations 263

Mexican Defense Horsefly Gambit 8

Ware Opening Other variations 239

Ware Opening Meadow Hay Trap 3

Ware Defense Other variations 209

Ware Defense Snagglepuss Defense 3

Gedults Opening Other variations 212

Rubinstein Opening Other variations 143

Rubinstein Opening Classical Defense 30

Rubinstein Opening Bogoljubov Defense 22

Rubinstein Opening Semi-Slav Defense 7

Clemenz Opening Other variations 186

Barnes Opening Other variations 98

Barnes Opening Walkerling 53

Barnes Opening Hammerschlag 32

Goldsmith Defense Other variations 175

Goldsmith Defense Picklepuss Defense 2

Kangaroo Defense Other variations 98

Kangaroo Defense Keres Defense 79

Barnes Defense Other variations 168

Paleface Attack Other variations 164

Carr Defense Other variations 161

Carr Defense Zilbermints Gambit 3

Portuguese Opening Other variations 151

Portuguese Opening Portuguese Gambit 5

Wade Defense Other variations 123

Gunderam Defense Other variations 121

Amar Opening Other variations 98

Amar Opening Paris Gambit 4

Amazon Attack Siberian Attack 35

Amazon Attack Other variations 56

Kings Pawn Other variations 90

Kings Pawn Game Mengarinis Opening 156

Kings Pawn Game Napoleon Attack 555

Kings Pawn Game Tortoise Opening 42

Kings Pawn Game Beyer Gambit 177

Kings Pawn Game Weber Gambit 21

Kings Pawn Game Kings Head Opening 251

Kings Pawn Game Pachman Wing Gambit 5

Kings Pawn Game Philidor Gambit 3

Kings Pawn Game Clam Variation 48

Kings Pawn Game Schulze-Muller Gambit 20

Kings Pawn Game La Bourdonnais Gambit 3

Kings Pawn Opening Van Hooydoon Gambit 3

Kings Pawn Opening Speers 2

Kings Pawn Game Bavarian Gambit 4

Robatsch Defense Other variations 68

Hippopotamus Defense Other variations 51

Sodium Attack Other variations 48

Lemming Defense Other variations 38

Valencia Opening Other variations 37

Crab Opening Other variations 28

Australian Defense Other variations 19

English Orangutan Other variations 18

Guatemala Defense Other variations 16

Bongcloud Attack Other variations 16

Global Opening Other variations 16

Bronstein Gambit Other variations 15

Vulture Defense Other variations 14

Montevideo Defense Other variations 13

Marienbad System Other variations 9

Dory Defense Other variations 9

Norwegian Defense Other variations 6

Zukertort Defense Kingside Variation 3

Zukertort Defense Sicilian Knight Variation 3

Irish Gambit Other variations 4

Borg Opening Zilbermints Gambit 3

Colle System Rhamphorhynchus Variation 2

Amsterdam Attack Other variations 1

Amar Gambit Other variations 1

Zaire Defense Other variations 1

Queens Pawn Game 50779

Queens Pawn Game Accelerated London System 11467

Queens Pawn Game Chigorin Variation 5976

Queens Pawn Game Other variations 10000

Queens Pawn Game Morris Countergambit 27

Queens Pawn Game London System 3654

Queens Pawn Game Zukertort Variation 4156

Queens Pawn Game Symmetrical Variation 2299

Queens Pawn Game Steinitz Countergambit 1076

Queens Pawn Game Mason Variation 1664

Queens Pawn Game Mason Attack 604

Queens Pawn Game Modern Defense 617

Queens Pawn Game Levitsky Attack 1155

Queens Pawn Game Anti-Torre 736

Queens Pawn Game Stonewall Attack 738

Queens Pawn Game Colle System 3495

Queens Pawn Game Franco-Sicilian Defense 116

Queens Pawn Game Veresov Attack 552

Queens Pawn Game Torre Attack 778

Queens Pawn Game Veresov 103

Queens Pawn Game Krause Variation 1143

Queens Pawn Game Anglo-Slav Opening 277

Queens Pawn Game Barry Attack 44

Queens Pawn Game Hubsch Gambit 78

Queens Pawn Game Liedmann Gambit 8

Queens Pawn Game Zurich Gambit 6

Queens Pawn Mengarini Attack 3

Queens Pawn Mengarini Attack Other variations 3

Queens Pawn Game Chandler Gambit 10

Kings Knight Opening 1883

Kings Knight Opening Normal Variation 1033

Kings Knight Opening Other variations 526

Kings Knight Opening Konstantinopolsky 324

St George Defense 918

St George Defense Other variations 806

St George Defense Polish Variation 85

St George Defense New St George 17

St George Defense Zilbermints Gambit 5

St George Defense San Jorge Variation 4

St George Defense St George Gambit 1

Vienna Gambit with Max Lange Defense 237

Vienna Gambit with Max Lange Defense Other variations 110

Vienna Gambit with Max Lange Defense Steinitz Gambit 15

Vienna Gambit with Max Lange Defense Knight Variation 69

Vienna Gambit with Max Lange Defense Hamppe-Muzio Gambit 11

Vienna Gambit with Max Lange Defense Cunningham Defense 8

Vienna Gambit with Max Lange Defense Pierce Gambit 12

Vienna Gambit with Max Lange Defense Hamppe-Allgaier Gambit 12

Four Knights Game 13700

Four Knights Game Spanish Variation 2218

Four Knights Game Italian Variation 6060

Four Knights Game Other variations 925

Four Knights Game Scotch Variation Accepted 2131

Four Knights Game Scotch Variation 724

Four Knights Game Halloween Gambit 518

Four Knights Game Ranken Variation 233

Four Knights Game Gunsberg Variation 485

Four Knights Game Double Spanish 342

Four Knights Game Nimzowitsch Variation 20

Four Knights Game Marshall Variation 4

Four Knights Game Rubinstein Countergambit 30

Four Knights Game Symmetrical 6

Four Knights Game Bardeleben Variation 1

Four Knights Game Spielmann Variation 1

Four Knights Game Gunsberg Counterattack 2

Kings Indian Attack 2878

Kings Indian Attack Sicilian Variation 241

Kings Indian Defense 8724

Kings Indian Defense Normal Variation 2724

Kings Indian Defense Petrosian Variation 115

Kings Indian Defense Exchange Variation 72

Kings Indian Defense Fianchetto Variation 685

Kings Indian Attack Other variations 1558

Kings Indian Attack French Variation 330

Kings Indian Defense Semi-Classical Variation 174

Kings Indian Attack Symmetrical Defense 366

Kings Indian Defense Averbakh Variation 109

Kings Indian Defense Other variations 1178

Kings Indian Defense Samisch Variation 665

Kings Indian Defense Zinnowitz Variation 287

Kings Indian Defense Orthodox Variation 925

Kings Indian Defense Four Pawns Attack 600

Kings Indian Defense Semi-Averbakh System 129

Kings Indian Attack Wahls Defense 94

Kings Indian Defense Smyslov Variation 356

Kings Indian Defense Larsen Variation 137

Kings Indian Defense Accelerated Averbakh Variation 156

Kings Indian Attack Spassky Variation 33

Kings Indian Defense Kazakh Variation 26

Kings Indian Defense Kramer Variation 68

Kings Indian Attack Yugoslav Variation 70

Kings Indian Defense Makogonov Variation 252

Kings Indian Attack Keres Variation 101

Kings Indian Defense Santasiere Variation 3

Kings Indian Defense Steiner Attack 58

Kings Indian Attack Double Fianchetto 48

Kings Indian Attack Omega-Delta Gambit 27

Kings Indian Defense Pomar System 5

Kings Indian Attack Pachman System 7

Kings Indian Attack Smyslov Variation 3

Vant Kruijs Opening 4866

Vant Kruijs Opening Other variations 4865

Vant Kruijs Opening Keoni-Hiva Gambit 1

Queens Indian Defense 1167

Queens Indian Defense Capablanca Variation 45

Queens Indian Accelerated 299

Queens Indian Accelerated Other variations 299

Queens Indian Defense Kasparov-Petrosian Variation 119

Queens Indian Defense Kasparov Variation 213

Queens Indian Defense Fianchetto Variation 175

Queens Indian Defense Other variations 131

Queens Indian Defense Classical Variation 206

Queens Indian Defense Fianchetto Traditional 58

Queens Indian Defense Petrosian Variation 49

Queens Indian Defense Riumin Variation 20

Queens Indian Defense Miles Variation 21

Queens Indian Defense Spassky System 105

Queens Indian Defense Anti-Queens Indian System 12

Queens Indian Defense Yates Variation 4

Queens Indian Defense Euwe Variation 7

Queens Indian Defense Traditional Variation 2

Van Geet Opening 1761

Van Geet Opening Reversed Nimzowitsch 218

Van Geet Opening Other variations 914

Van Geet Opening Napoleon Attack 161

Van Geet Opening Tubingen Gambit 21

Van Geet Opening Dunst-Perrenet Gambit 121

Van Geet Opening Reversed Scandinavian 27

Van Geet Opening Nowokunski Gambit 5

Van Geet Opening Grunfeld Defense 79

Van Geet Opening Berlin Gambit 56

Van Geet Opening Myers Attack 17

Van Geet Opening Dougherty Gambit 18

Van Geet Opening Hector Gambit 14

Van Geet Opening Battambang Variation 16

Van Geet Opening Sicilian Two Knights 49

Van Geet Opening Novosibirsk Variation 24

Van Geet Opening Billockus-Johansen Gambit 3

Van Geet Opening Liebig Gambit 2

Van Geet Opening Kluever Gambit 7

Van Geet Opening Caro-Kann Variation 5

Van Geet Opening Venezolana Variation 2

Van Geet Opening Hergert Gambit 1

Van Geet Opening Laroche Gambit 1

Three Knights Opening 3468

Three Knights Opening Other variations 3202

Three Knights Opening Steinitz Defense 72

Three Knights Opening Winawer Defense 151

Three Knights Opening Schlechter Variation 38

Three Knights Opening Steinitz-Rosenthal Variation 5

Old Indian Defense 1645

Old Indian Defense Other variations 1151

Old Indian Defense Janowski Variation 64

Old Indian Defense Czech Variation 203

Old Indian Defense Normal Variation 38

Old Indian Defense Ukrainian Variation 73

Old Indian Defense Tartakower-Indian 42

Old Indian Defense Two Knights Variation 72

Old Indian Defense Dus-Khotimirsky Variation 2

East Indian Defense 816

East Indian Defense Other variations 816

Fried Fox Defense 32

Fried Fox Defense Other variations 32

Lasker Simul Special 68

Lasker Simul Special Other variations 68

Pseudo Queens Indian Defense 167

Pseudo Queens Indian Defense Other variations 167

Creepy Crawly Formation 47

Creepy Crawly Formation Classical Defense 47

System Double Duck Formation 14

Formation Shy Attack 1