Code

Opening Names

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C00

French defence

French: Alapin variation

French: Schlechter variation

French defence

French defence

French: two knights variation

French: Pelikan variation

French defence

French: wing gambit

French: King's Indian attack

French: Reversed Philidor formation

French: Reti (Spielmann) variation

French: Steiner variation

French: Steinitz attack

French: Labourdonnais variation

French: Chigorin variation

French defence

Lengfellner system

St. George defence

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C01

French: exchange variation

French: exchange, Blackburne variation

French: exchange, Svenonius variation

French: exchange, Bogolyubov variation

French: exchange (3.Nc3)

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C02

French: advance variation

French: advance, Steinitz variation

French: advance, Nimzovich system

French: advance, Nimzovich variation

French: advance variation

French: advance, Wade variation

French: advance variation

French: advance, Paulsen attack

French: advance, Milner-Barry gambit

French: advance, Euwe variation

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C03

French: Tarrasch

French: Tarrasch, Guimard variation

French: Tarrasch, Haberditz variation

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C04

French: Tarrasch, Guimard main line

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C05

French: Tarrasch, closed variation

French: Tarrasch, closed variation

French: Tarrasch, Botvinnik variation

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C06

French: Tarrasch, closed variation, main line

French: Tarrasch, Leningrad variation

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C07

French: Tarrasch, open variation

French: Tarrasch, Eliskases variation

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C08

French: Tarrasch, open (4.exd5 exd5)

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C09

French: Tarrasch, open variation, main line

French: Tarrasch, open variation (Huebner)

French: Tarrasch, open variation, main line

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C10

French: Paulsen variation

French: Marshall variation

French: Rubinstein variation

French: Rubinstein variation

French: Rubinstein, Capablanca line

French: Frere (Becker) variation

French: Fort Knox variation

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C11

French defence

French: Steinitz, Gledhill attack

French: Steinitz variation

French: Steinitz, Boleslavsky variation

French: Steinitz variation

French: Steinitz, Brodsky- Jones variation

French: Steinitz, Bradford attack

French: Swiss variation

French: Henneberger variation

French: Burn variation

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C12

French: MacCutcheon variation

French: MacCutcheon, Bogolyubov variation

French: MacCutcheon, advance variation

French: MacCutcheon, Janowski variation

French: MacCutcheon, Bernstein variation

French: MacCutcheon, Chigorin variation

French: MacCutcheon, Grigoriev variation

French: MacCutcheon, Dr. Olland (Dutch) variation

French: MacCutcheon, Tartakower variation

French: MacCutcheon, Lasker variation

French: MacCutcheon, Duras variation

French: MacCutcheon, Lasker variation (8...g6)

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C13

French: classical

French: classical, Anderssen variation

French: classical, Anderssen- Richter variation

French: classical, Tartakower variation

French: classical, Vistaneckis (Nimzovich) variation

French: classical, Frankfurt variation

French: Albin-Alekhine- Chatard attack

French: Albin-Alekhine- Chatard attack, Breyer variation

French: Albin-Alekhine- Chatard attack, Teichmann variation

French: Albin-Alekhine- Chatard attack, Spielmann variation

French: Albin-Alekhine- Chatard attack, Maroczy variation

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C14

French: classical variation

French: classical, Tarrasch variation

French: classical, Alapin variation

French: classical, Rubinstein variation

French: classical, Pollock variation

French: classical, Steinitz variation

French: classical, Stahlberg variation

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C15

French: Winawer, Nimzovich variation

French: Winawer, Alekhine (Maroczy) gambit

French: Winawer, Alekhine gambit

French: Winawer, Alekhine gambit, Kan variation

French: Winawer, Alekhine gambit, Alatortsev variation

French: Winawer, Kondratiyev variation

French: Winawer, fingerslip variation

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C16

French: Winawer, advance variation

French: Winawer, Petrosian variation

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C17

French: Winawer, advance variation

French: Winawer, advance, Russian variation

French: Winawer, advance, Bogolyubov variation

French: Winawer, advance (5.a3)

French: Winawer, advance, Rauzer variation

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C18

French: Winawer, advance variation

French: Winawer, classical variation

French: Winawer, classical variation (7.Nf3)

French: Winawer, advance (7.h4)

French: Winawer, advance (without 7...Qc7)

French: Winawer, advance, poisoned pawn, Konstantinopolsky

French: Winawer, advance, poisoned pawn, Euwe-Gligoric variation

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C19

French: Winawer, advance, positional main line (with...Qc7)

French: Winawer, advance (6...Ne7)

French: Winawer, advance, Smyslov variation

French: Winawer, advance, positional main line

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C20

King's pawn game

KP: Lopez opening

Alapin's opening

KP: Indian opening

KP: Mengarini's opening

KP: King's head opening

KP: Patzer opening

KP: Napoleon's opening

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C21

Centre game

Centre game: Kieseritsky variation

Centre game

Halasz gambit

Danish gambit

Danish gambit: Collijn defence

Danish gambit: Schlechter defence

Danish gambit: Soerensen defence

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C22

Centre game

Centre game: Hall variation

Centre game: Paulsen attack

Centre game: Charousek variation

Centre game: l'Hermet variation

Centre game: Berger variation

Centre game: Kupreichik variation

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C23

Bishop's opening

Bishop's opening: Philidor counter-attack

Bishop's opening: Lisitsyn variation

Bishop's opening: Calabrese counter-gambit

Bishop's opening: Calabrese counter-gambit, Jaenisch variation

Bishop's opening: classical variation

Bishop's opening: Philidor variation

Bishop's opening: Lewis counter- gambit

Bishop's opening: del Rio variation

Bishop's opening: Pratt variation

Bishop's opening: Lopez gambit

Bishop's opening: Lewis gambit

Bishop's opening: wing gambit

Bishop's opening: MacDonnell double gambit

Bishop's opening: four pawns' gambit

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C24

Bishop's opening: Berlin defence

Bishop's opening: Ponziani gambit

Bishop's opening: Urusov gambit C43 Petrov: Urusov gambit

Bishop's opening: Urusov gambit, Panov variation

Bishop's opening: Greco gambit

Bishop's opening: Burger attack

Bishop's opening (with 3.d3)

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C25

Vienna game

Vienna: Zhuravlev countergambit

Vienna game: Max Lange defence

Vienna: Paulsen variation

Vienna: Fyfe gambit

Vienna gambit

Vienna gambit

Vienna: Pierce gambit

Vienna: Pierce gambit, Rushmere attack

Vienna: Hamppe-Allgaier gambit

Vienna: Hamppe-Allgaier gambit, Alapin variation

Vienna: Hamppe-Muzio gambit

Vienna: Hamppe-Muzio, Dubois variation

Vienna: Steinitz gambit

Vienna: Steinitz gambit, Fraser- Minckwitz variation

Vienna: Steinitz gambit, Zukertort defence

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C26

Vienna: Falkbeer variation

Vienna: Paulsen-Mieses variation

Vienna: Mengarini variation

Vienna game

Vienna game (Bc4...Bc5)

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C27

Vienna game

Vienna: Frankenstein-Dracula variation

Vienna: Adams gambit

Vienna game

Vienna: Alekhine variation

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C28

Vienna game: 4.d3

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C29

Vienna gambit

Vienna gambit: Steinitz variation

Vienna gambit: Kaufmann variation

Vienna gambit: Breyer variation

Vienna gambit: Paulsen attack

Vienna gambit: Bardeleben variation

Vienna gambit: Heyde variation

Vienna gambit

Vienna gambit: Wurzburger trap

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C30

King's gambit

KGD: Mafia defence

KGD: 2...Nf6

KGD: Keene's defence

KGD: Norwalde variation

KGD: Norwalde variation, Buecker gambit

KGD: classical variation

KGD: classical (4.c3)

KGD: classical counter-gambit

KGD: classical, Reti variation

KGD: classical, Marshall attack

KGD: classical, Soldatenkov variation

KGD: classical, Svenonius variation

KGD: classical, Hanham variation

KGD: classical, Heath variation

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C31

KGD: Falkbeer counter-gambit

KGD: Falkbeer, Milner-Barry variation

KGD: Falkbeer, Tartakower variation

KGD: Falkbeer counter-gambit

KGD: Falkbeer (3...e4)

KGD: Falkbeer (4.d3)

KGD: Falkbeer, Morphy gambit

KGD: Falkbeer, Rubinstein variation

KGD: Falkbeer, Nimzovich variation

KGD: Nimzovich counter- gambit

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C32

KGD: Falkbeer (5.dxe4)

KGD: Falkbeer, Charousek gambit

KGD: Falkbeer, Charousek variation

KGD: Falkbeer, main line (7...Bf5)

KGD: Falkbeer, Tarrasch variation

KGD: Falkbeer, Alapin variation

KGD: Falkbeer, Keres variation

KGD: Falkbeer, Reti variation

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C33

King's gambit accepted

KGA: bishop's gambit

KGA: bishop's gambit, Bledow variation

KGA: bishop's gambit, Chigorin's attack

KGA: bishop's gambit, Gifford variation

KGA: bishop's gambit, Boren- Svenonius variation

KGA: bishop's gambit, Anderssen variation

KGA: bishop's gambit, Morphy variation

KGA: bishop's gambit, Lopez- Gianutio counter-gambit

KGA: Lopez-Gianutio counter- gambit, Hein variation

KGA: bishop's gambit, Maurian defence

KGA: bishop's gambit, Steinitz defence

KGA: bishop's gambit, Cozio (Morphy) defence

KGA: bishop's gambit, Bogolyubov variation

KGA: bishop's gambit, Jaenisch variation

KGA: bishop's gambit, Paulsen attack

KGA: bishop's gambit, Greco variation

KGA: bishop's gambit, classical defence

KGA: bishop's gambit, classical defence, Cozio attack

KGA: bishop's gambit, McDonnell attack

KGA: bishop's gambit, Fraser variation

KGA: bishop's gambit, classical defence

KGA: bishop's gambit, McDonnell attack

KGA: bishop's gambit, Grimm attack

KGA: bishop's gambit, Boden defence

KGA: bishop's gambit, Bryan counter-gambit

KGA: bishop's gambit, Ruy Lopez defence

KGA: bishop's gambit, Bryan counter-gambit

KGA: Lesser bishop's (Petroff- Jaenisch-Tartakower) gambit

KGA: Villemson (Steinitz) gambit

KGA: Keres (Mason-Steinitz) gambit

KGA: Breyer gambit

KGA: Tumbleweed gambit

KGA: Pawn's gambit (Stamma gambit)

KGA: Schurig gambit

KGA: Carrera (Basman) gambit

KGA: Orsini gambit

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C34

King's knight's gambit

KGA: Gianutio counter-gambit

KGA: Becker defence

KGA: Schallop defence

KGA: Bonsch-Osmolovsky variation

KGA: Fischer defence

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C35

KGA: Cunningham defence

KGA: Cunningham, Euwe defence

KGA: Cunningham, Bertin gambit

KGA: Cunningham, three pawns gambit

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C36

KGA: Abbazia defence (classical defence, modern defence)

KGA: Abbazia defence, modern variation

KGA: Abbazia defence, Botvinnik variation

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C37

KGA: Rosentreter gambit

KGA: Soerensen gambit

KGA: Quaade gambit

KGA: King's knight's gambit

KGA: Blachly gambit

KGA: MacDonnell gambit

KGA: Salvio gambit

KGA: Herzfeld gambit

KGA: Silberschmidt gambit

KGA: Salvio gambit, Anderssen counter-attack

KGA: Cochrane gambit

KGA: Muzio gambit

KGA: Muzio gambit, From defence

KGA: Muzio gambit, Paulsen variation

KGA: double Muzio gambit

KGA: Muzio gambit, Holloway defence

KGA: Muzio gambit, Kling and Horwitz counter-attack

KGA: Muzio gambit, Brentano defence

KGA: Lolli gambit (wild Muzio gambit)

KGA: Lolli gambit, Young variation

KGA: Ghulam Kassim gambit

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C38

King's knight's gambit

KGA: Hanstein gambit

KGA: Philidor gambit

KGA: Philidor gambit, Schultz variation

KGA: Greco gambit

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C39

King's knight's gambit

KGA: Allgaier gambit

KGA: Allgaier, Schlechter defence

KGA: Allgaier, Thorold variation

KGA: Allgaier, Cook variation

KGA: Allgaier, Blackburne gambit

KGA: Allgaier, Horny defence

KGA: Allgaier, Walker attack

KGA: Allgaier, Urusov attack

KGA: Kieseritsky, Paulsen defence

KGA: Kieseritsky, Kolisch defence

KGA: Kieseritsky, long whip (Stockwhip, classical) defence

KGA: Kieseritsky, long whip defence, Jaenisch variation

KGA: Kieseritsky, Berlin defence

KGA: Kieseritsky, Berlin defence, Riviere variation

KGA: Kieseritsky, Berlin defence (6.Bc4)

KGA: Kieseritsky, Rice gambit

KGA: Kieseritsky, Salvio (Rosenthal) defence

KGA: Kieseritsky, Salvio defence, Cozio variation

KGA: Kieseritsky, Brentano (Campbell) defence

KGA: Kieseritsky, Brentano defence

KGA: Kieseritsky, Brentano defence, Caro variation

KGA: Kieseritsky, Brentano defence, Kaplanek variation

KGA: Kieseritsky, Neumann defence

KGA: Kieseritsky, Polerio defence

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C40

King's knight opening

QP counter-gambit (elephant gambit)

QP counter-gambit: Maroczy gambit

Latvian counter-gambit

Latvian: Nimzovich variation

Latvian: Fraser defence

Latvian gambit (3.Bc4)

Latvian: corkscrew counter- gambit

Latvian: Behting variation

Latvian: Polerio variation

Damiano's defence

Greco defence

Gunderam defence

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C41

Philidor's defence

Philidor's defence

Philidor: Philidor counter-gambit

Philidor: Philidor counter- gambit, Zukertort variation

Philidor: Philidor counter- gambit, del Rio attack

Philidor: Philidor counter-gambit, Berger variation

Philidor: Hanham variation

Philidor: Hanham, Schlechter variation

Philidor: Hanham, Kmoch variation

Philidor: Hanham, Berger variation

Philidor: Hanham, Krause variation

Philidor: Hanham, Steiner variation

Philidor: Hanham, Delmar variation

Philidor: Nimzovich (Jaenisch) variation

Philidor: Improved Hanham variation

Philidor: Nimzovich, Sozin variation

Philidor: Nimzovich, Larobok variation

Philidor: Nimzovich, Locock variation

Philidor: Nimzovich, Klein variation

Philidor: Nimzovich variation

Philidor: Nimzovich, Rellstab variation

Philidor: Nimzovich, Sokolsky variation

Philidor: exchange variation

Philidor: Boden variation

Philidor: exchange variation

Philidor: exchange variation

Philidor: Berger variation

Philidor: Paulsen attack

Philidor: Larsen variation

Philidor: Lopez counter-gambit

Philidor: Lopez counter-gambit, Jaenisch variation

Philidor: Steinitz variation

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C42

Russian defence: (Petroff's) C27 Boden-Kieseritsky gambit

Boden-Kieseritsky gambit

Russian defence: (Petroff's) Lichtehein variation C27

Petrov's defence

Petrov: Italian variation

Petrov: three knights game

Petrov: Damiano variation

Petrov: French attack

Petrov: classical attack

Petrov: classical attack, close variation

Petrov: classical attack, Mason variation

Petrov: classical attack, Chigorin variation

Petrov: classical attack, Krause variation

Petrov: classical attack, Maroczy variation

Petrov: classical attack, Berger variation

Petrov: classical attack, Jaenisch variation

Petrov: classical attack, Marshall variation

Petrov: classical attack, Tarrasch variation

Petrov: classical attack, Marshall trap

Petrov: Nimzovich attack

Petrov: Cozio (Lasker) attack

Petrov: Kaufmann attack

Petrov: Cochrane gambit

Petrov: Paulsen attack

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C43

Petrov: modern (Steinitz) attack

Petrov: modern attack, Symmetrical variation

Petrov: modern attack, Trifunovic variation

Petrov: modern attack, main line

Petrov: modern attack, Steinitz variation

Petrov: modern attack, Bardeleben variation

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C44

King's pawn game

Ponziani opening

Ponziani: Jaenisch counter-attack

Ponziani: Fraser defence

Ponziani: Reti variation

Ponziani: Romanishin variation

Ponziani counter-gambit

Ponziani counter-gambit, Schmidt attack

Ponziani counter-gambit, Cordel variation

Ponziani: Leonhardt variation

Ponziani: Caro variation

Ponziani: Steinitz variation

Scotch opening

Scotch: Lolli variation

Scotch: Cochrane variation

Scotch: Lolli variation

Scotch gambit

Scotch gambit

Scotch gambit

Scotch gambit: Cochrane variation

Scotch gambit: Hanneken variation

Scotch gambit: Benima defence

Scotch gambit: Dubois-Reti defence

Scotch gambit: Anderssen (Paulsen, Suhle) counter-attack

Scotch gambit

Scotch gambit: Vitzhum attack

Scotch gambit: Cochrane- Shumov defence

Scotch: Goering gambit

Scotch: Sea-cadet mate

Scotch: Goering gambit

Scotch: Goering gambit, Bardeleben variation

Scotch: Relfsson gambit ('MacLopez')

Konstantinopolsky opening

Irish (Chicago) gambit

Dresden opening

Inverted Hungarian

Tayler opening

Inverted Hanham

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C45

Scotch: Ghulam Kassim variation

Scotch game

Scotch: Schmidt variation

Scotch: Tartakower variation

Scotch: Mieses variation

Scotch: Pulling counter-attack

Scotch: Steinitz variation

Scotch: Fraser attack

Scotch: Horwitz attack

Scotch: Berger variation

Scotch game

Scotch: Rosenthal variation

Scotch game

Scotch: Potter variation

Scotch: Romanishin variation

Scotch: Blumenfeld attack

Scotch: Meitner variation

Scotch: Blackburne attack

Scotch: Gottschall variation

Scotch: Paulsen attack

Scotch: Paulsen, Gunsberg defence

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C46

Three knights game

Three knights: Steinitz variation

Three knights: Steinitz, Rosenthal variation

Four knights: Schultze-Mueller gambit

Four knights: Italian variation

Three knights: Winawer defence (Gothic defence)

Three knights: Schlechter variation

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C47

Four knights game

Four knights: Scotch variation

Four knights: Scotch (4...exd4)

Four knights: Scotch (4...exd4 5.Nxd4)

Four knights: Belgrade gambit

Four knights: Scotch, Krause variation

Four knights: Ioseliani-Glek variation

Four knights: Gunsberg variation

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C48

Four knights: Spanish variation

Four knights: Spanish, classical defence

Four knights: Bardeleben variation

Four knights: Marshall variation

Four knights: Rubinstein counter-gambit

Four knights: Rubinstein counter-gambit, exchange variation

Four knights: Rubinstein counter-gambit, Bogolyubov variation

Four knights: Rubinstein counter-gambit, Henneberger variation

Four knights: Rubinstein counter- gambit (5.Be2)

Four knights: Rubinstein counter-gambit, Maroczy variation

Four knights: Ranken variation

Four knights: Spielmann variation

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C49

Four knights: double Ruy Lopez

Four knights: double Ruy Lopez

Four knights: symmetrical variation

Four knights: symmetrical, Maroczy system

Four knights: symmetrical, Metger unpin

Four knights: symmetrical, Capablanca variation

Four knights: symmetrical, Pillsbury variation

Four knights: symmetrical, Blake variation

Four knights: symmetrical, Tarrasch variation

Four knights: Alatortsev variation

Four knights game

Four knights: Janowski variation

Four knights: Svenonius variation

Four knights: Gunsberg counter-attack

Four knights: Nimzovich (Paulsen) variation

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C50

Hungarian defence: Tartakower variation

King's pawn game

Hungarian defence

Rousseau gambit

Blackburne shilling gambit

Giuoco Piano

Giuoco Piano: four knights variation

Giuoco Piano: Jerome gambit

Giuoco Pianissimo

Giuoco Pianissimo: Dubois variation

Giuoco Pianissimo

Giuoco Pianissimo: Italian four knights variation

Giuoco Pianissimo: Canal variation

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C51

Evans gambit declined

Evans gambit

Evans gambit: Stone-Ware variation

Evans gambit (5...Be7)

Evans gambit: Cordel variation

Evans gambit: Mayet defence

Evans gambit: normal variation

Evans gambit: Morphy attack

Evans gambit: Goering attack

Evans gambit: Steinitz variation

Evans gambit

Evans gambit: Fraser attack

Evans gambit: Fraser-Mortimer attack

Evans gambit: Ulvestad variation

Evans gambit: Paulsen variation

Evans counter-gambit

Evans gambit declined: Cordel variation

Evans gambit declined: Hirschbach variation

Evans gambit declined: Hicken variation

Evans gambit declined: Vasquez variation

Evans gambit declined: Lange variation

Evans gambit declined: Pavlov variation

Evans gambit declined: 5.a4

Evans gambit declined: Showalter variation

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C52

Evans gambit

Evans gambit

Evans gambit: Richardson attack

Evans gambit

Evans gambit: Sanders-Alapin variation

Evans gambit: Alapin-Steinitz variation

Evans gambit: Waller attack

Evans gambit: Lasker defence

Evans gambit

Evans gambit: Sokolsky variation

Evans gambit: Tartakower attack

Evans gambit: Levenfish variation

Evans gambit: compromised defence

Evans gambit: compromised defence, Paulsen variation

Evans gambit: compromised defence, Potter variation

Evans gambit: Leonhardt variation

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C53

Giuoco Piano

Giuoco Piano

Giuoco Piano

Giuoco Piano: Ghulam Kassim variation

Giuoco Piano

Giuoco Piano: Anderssen variation

Giuoco Piano: Bird's attack

Giuoco Piano: close variation

Giuoco Piano: centre-holding variation

Giuoco Piano: Tarrasch variation

Giuoco Piano: Mestel variation

Giuoco Piano: Eisinger variation

Giuoco Piano: LaBourdonnais variation

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C54

Giuoco Piano

Giuoco Piano: Greco's attack

Giuoco Piano: Greco variation

Giuoco Piano: Aitken variation

Giuoco Piano: Bernstein variation

Giuoco Piano

Giuoco Piano: Moeller (Therkatz) attack

Giuoco Piano: Moeller, bayonet attack

Giuoco Piano: Therkatz- Herzog variation

Giuoco Piano: Steinitz variation

Giuoco Piano: Cracow variation

Giuoco Piano: Krause variation

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C55

Two knights defence: Perreux variation

Two knights defence

Two knights: Max Lange attack

Two knights: Max Lange attack, Steinitz variation

Two knights: Max Lange attack, Krause variation

Two knights: Max Lange attack, Marshall variation

Two knights: Max Lange attack, Rubinstein variation

Two knights: Max Lange attack, Berger variation

Two knights: Max Lange attack, Loman defence

Two knights: Max Lange attack, Schlechter variation

Two knights defence: Keidanz variation

Two knights defence

Two knights defence

Giuoco piano: Rosentreter variation

Giuoco piano

Giuoco piano: Holzhausen attack

Two knights defence (Modern bishop's opening)

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C56

Two knights defence

Two knights defence: Canal variation

Two knights defence: Yurdansky attack

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C57

Two knights defence

Two knights defence: Fritz variation

Two knights defence: Fritz, Gruber variation

Two knights defence: Fegatello attack

Two knights defence: Fegatello attack, Polerio defence

Two knights defence: Fegatello attack, Leonhardt variation

Two knights defence: Lolli attack

Two knights defence: Pincus variation

Two knights defence: Ulvestad variation

Two knights defence: Wilkes Barre (Traxler) variation

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C58

Two knights defence

Two knights defence: Kieseritsky variation

Two knights defence: Maroczy variation

Two knights defence: Yankovich variation

Two knights defence

Two knights defence: Bogolyubov variation

Two knights defence: Colman variation

Two knights defence: Blackburne variation

Two knights defence: Paoli variation

Two knights defence

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C59

Two knights defence

Two knights defence: Steinitz variation

Two knights defence: Goering variation

Two knights defence: Knorre variation

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C60

Ruy Lopez (Spanish opening)

Ruy Lopez: Cozio defence

Ruy Lopez: Cozio defence, Paulsen variation

Ruy Lopez: Nuernberg variation

Ruy Lopez: Pollock defence

Ruy Lopez: Lucena defence

Ruy Lopez: Vinogradov variation

Ruy Lopez: Brentano defence

Ruy Lopez: fianchetto (Smyslov-Barnes) defence

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C61

Ruy Lopez: Bird's defence

Ruy Lopez: Bird's defence, Paulsen variation

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C62

Ruy Lopez: old Steinitz defence

Ruy Lopez: old Steinitz defence, Nimzovich attack

Ruy Lopez: old Steinitz defence, semi-Duras variation

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C63

Ruy Lopez: Schliemann defence

Ruy Lopez: Schliemann defence, Berger variation

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C64

Ruy Lopez: classical (Cordel) defence

Ruy Lopez: classical defence, Zaitsev variation

Ruy Lopez: classical defence (4.c3)

Ruy Lopez: Cordel gambit

Ruy Lopez: classical defence, Boden variation

Ruy Lopez: classical defence, Charousek variation

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C65

Ruy Lopez: classical defence, Benelux variation C64 Ruy Lopez:

Ruy Lopez: Berlin defence

Ruy Lopez: Berlin defence, Nyholm attack

Ruy Lopez: Berlin defence (4.O-O)

Ruy Lopez: Berlin defence, Beverwijk variation

Ruy Lopez: Berlin defence, Duras variation

Ruy Lopez: Berlin defence, Anderssen variation

Ruy Lopez: Berlin defence, Mortimer variation

Ruy Lopez: Berlin defence, Mortimer trap

Ruy Lopez: Berlin defence, Kaufmann variation

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C66

Ruy Lopez: Berlin defence (4.O-O d6)

Ruy Lopez: closed Berlin defence, Chigorin variation

Ruy Lopez: closed Berlin defence, Wolf variation

Ruy Lopez: Berlin defence, hedgehog variation

Ruy Lopez: closed Berlin defence, Showalter variation

Ruy Lopez: Berlin defence, Tarrasch trap

Ruy Lopez: closed Berlin defence, Bernstein variation

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C67

Ruy Lopez: Berlin defence, open variation

Ruy Lopez: open Berlin defence (5...Be7)

Ruy Lopez: Berlin defence, Trifunovic variation

Ruy Lopez: Berlin defence, Cordel variation

Ruy Lopez: Berlin defence, Rio de Janeiro variation

Ruy Lopez: Berlin defence, Winawer attack

Ruy Lopez: Berlin defence, Zukertort variation

Ruy Lopez: Berlin defence, Pillsbury variation

Ruy Lopez: Berlin defence, Minckwitz variation

Ruy Lopez: open Berlin defence, l'Hermet variation

Ruy Lopez: open Berlin defence, Showalter variation

Ruy Lopez: Berlin defence, Rosenthal variation

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C68

Ruy Lopez: exchange variation

Ruy Lopez: exchange, Keres variation

Ruy Lopez: exchange, Romanovsky variation

Ruy Lopez: exchange, Pachman-Romanishin variation

Ruy Lopez: exchange, Alekhine variation

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C69

Ruy Lopez: exchange variation (5.O-O)

Ruy Lopez: exchange variation, Alapin gambit

Ruy Lopez: exchange, Gligoric variation

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C70

Ruy Lopez

Ruy Lopez: Alapin's defence deferred

Ruy Lopez: classical defence deferred

Ruy Lopez: Schliemann defence deferred

Ruy Lopez: Cozio defence deferred

Ruy Lopez: fianchetto defence deferred

Ruy Lopez: Bird's defence deferred

Ruy Lopez: Caro variation

Ruy Lopez: Taimanov (chase wing accelerated counterthrust)

Ruy Lopez: Graz variation

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C71

Ruy Lopez: modern Steinitz defence

Ruy Lopez: Noah's ark trap

Ruy Lopez: modern Steinitz defence, three knights variation

Ruy Lopez: modern Steinitz defence, Duras (Keres) variation

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C72

Ruy Lopez: modern Steinitz defence (5.O-O)

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C73

Ruy Lopez: modern Steinitz defence, Richter variation

Ruy Lopez: modern Steinitz defence, Alapin variation

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C74

Ruy Lopez: modern Steinitz defence

Ruy Lopez: modern Steinitz defence, siesta variation

Ruy Lopez: Siesta, Kopayev variation

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C75

Ruy Lopez: modern Steinitz defence

Ruy Lopez: modern Steinitz defence, Rubinstein variation

Ruy Lopez: modern Steinitz defence, Rubinstein-Geller variation

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C76

Ruy Lopez: modern Steinitz defence, fianchetto (Bronstein)

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C77

Ruy Lopez: Morphy defence

Ruy Lopez: Anderssen variation

Ruy Lopez: Morphy defence, Duras variation

Ruy Lopez: four knights (Tarrasch) variation

Ruy Lopez: Wormald (Alapin) attack

Ruy Lopez: Wormald attack, Gruenfeld variation

Ruy Lopez: Treybal (Bayreuth) variation (exchange deferred)

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C78

Ruy Lopez: 5.O-O

Ruy Lopez: Moeller defence

Ruy Lopez: Archangel variation

Ruy Lopez: wing attack

Ruy Lopez: (...b5...d6)

Ruy Lopez: Rabinovich variation

Ruy Lopez: Archangelsk (counterthrust) variation

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C79

Ruy Lopez: Steinitz defence deferred (Russian defence)

Ruy Lopez: Steinitz defence deferred, Rubinstein variation

Ruy Lopez: Steinitz defence deferred, Boleslavsky variation

Ruy Lopez: Steinitz defence deferred, Lipnitsky variation

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C80

Ruy Lopez: open (Tarrasch) defence

Ruy Lopez: open, Tartakower variation

Ruy Lopez: open, Knorre variation

Ruy Lopez: open (6.d4)

Ruy Lopez: open, Riga variation

Ruy Lopez: open (6.d4 b5)

Ruy Lopez: open, Friess attack

Ruy Lopez: open, Richter variation

Ruy Lopez: open (7.Bb3)

Ruy Lopez: open, Harksen gambit

Ruy Lopez: open (8.dxe5)

Ruy Lopez: open, Zukertort variation

Ruy Lopez: open (8...Be6)

Ruy Lopez: open, Bernstein variation

Ruy Lopez: open, Bernstein variation, Karpov gambit

Ruy Lopez: open, Schlechter defence

Ruy Lopez: open, Berger variation

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C81

Ruy Lopez: open, Howell attack

Ruy Lopez: open, Howell attack, Adam variation

Ruy Lopez: open, Howell attack, Ekstroem variation

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C82

Ruy Lopez: open (9.c3)

Ruy Lopez: open, Berlin variation

Ruy Lopez: open, Italian variation

Ruy Lopez: open, Motzko attack

Ruy Lopez: open, Motzko attack, Nenarokov variation

Ruy Lopez: open, St. Petersburg variation

Ruy Lopez: open, Dilworth variation

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C83

Ruy Lopez: open, classical defence

Ruy Lopez: open (9...Be7 10.Re1)

Ruy Lopez: open, Tarrasch trap

Ruy Lopez: open, Breslau variation

Ruy Lopez: open, Malkin variation

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C84

Ruy Lopez: closed defence

Ruy Lopez: closed, centre attack

Ruy Lopez: closed, Basque gambit (North Spanish variation)

Ruy Lopez: closed centre (6.d3)

Ruy Lopez: closed centre (7...d6)

Ruy Lopez: closed centre (7...Bb7)

Ruy Lopez: closed centre (5...b5)

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C85

Ruy Lopez: exchange variation doubly deferred

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C86

Ruy Lopez: Worrall attack

Ruy Lopez: Worrall attack, sharp line

Ruy Lopez: Worrall attack, solid line

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C87

Ruy Lopez: closed, Averbach variation

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C88

Ruy Lopez: closed

Ruy Lopez: closed (7...h6 8.d4)

Ruy Lopez: Noah's ark trap

Ruy Lopez: closed, Leonhardt variation

Ruy Lopez: closed, Balla variation

Ruy Lopez: closed (7...O-O)

Ruy Lopez: closed (8.c3)

Ruy Lopez: closed, anti- Marshall (8.a4)

Ruy Lopez: Trajkovic counter- attack

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C89

Ruy Lopez: Marshall counter- attack

Ruy Lopez: Marshall counter- attack (11...c6)

Ruy Lopez: Marshall, main line (12.d4)

Ruy Lopez: Marshall, main line

Ruy Lopez: Marshall, main line, Spassky variation

Ruy Lopez: Marshall, Kevitz variation

Ruy Lopez: Marshall, Herman Steiner variation

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C90

Ruy Lopez: closed (with...d6)

Ruy Lopez: closed, Pilnik variation

Ruy Lopez: closed, Lutikov variation

Ruy Lopez: closed, Suetin variation

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C91

Ruy Lopez: closed (9.d4)

Ruy Lopez: closed, Bogolyubov variation

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C92

Ruy Lopez: closed (9.h3)

Ruy Lopez: closed, Flohr- Zaitsev system (Lenzerheide variation)

Ruy Lopez: closed, Kholmov variation

Ruy Lopez: closed, Ragozin- Petrosian (Keres) variation

Ruy Lopez: closed, Keres (9...a5) variation

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C93

Ruy Lopez: closed, Smyslov defence

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C94

Ruy Lopez: closed, Breyer defence

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C95

Ruy Lopez: closed, Breyer (10.d4)

Ruy Lopez: closed, Breyer, Borisenko variation

Ruy Lopez: closed, Breyer, Simagin variation

Ruy Lopez: closed, Breyer, Gligoric variation

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C96

Ruy Lopez: closed (8...Na5)

Ruy Lopez: closed, Rossolimo defence

Ruy Lopez: closed (10...c5)

Ruy Lopez: closed, Keres (...Nd7) defence

Ruy Lopez: closed, Borisenko defence

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C97

Ruy Lopez: closed, Chigorin defence

Ruy Lopez: closed, Chigorin, Yugoslav system

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C98

Ruy Lopez: closed, Chigorin (12...Nc6)

Ruy Lopez: closed, Chigorin, Rauzer attack

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C99

Ruy Lopez: closed, Chigorin (...cxd4)

Ruy Lopez: closed, Chigorin (...cxd4...Bb7)


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