ECO C
ECO C - Open Games
Open games begin with 1.e4 e5. This classic response leads to openings like the Ruy Lopez, Italian Game, Scotch Game, King's Gambit, and Petroff Defense. Open games typically feature active piece play and tactical battles.
ECO Subcategories
C00 C01 C02 C03 C04 C05 C06 C07 C08 C09 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 C94 C95 C96 C97 C98 C99
791 Openings Found
C00 C20 C20 C20 C23 C23 C23 C23 C23 C23 C23 C23 C23 C23 C23 C23 C23 C23 C23 C23 C23 C24 C24 C24 C24 C24 C24 C24 C24 C23 C23 C23 C23 C23 C20 C20 C20 C20 C20 C20 C20 C20 C20 C20 C20 C21 C21 C21 C21 C21 C21 C21 C21 C21 C21 C21 C21 C21 C21 C21 C21 C21 C22 C22 C22 C22 C20 C20 C20 C20 C30 C30 C30 C30 C30 C30 C30 C31 C31 C31 C31 C31 C31 C31 C32 C32 C32 C32 C32 C31 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C33 C35 C35 C35 C36 C34 C34 C34 C37 C38 C38 C38 C38 C38 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C37 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C39 C37 C34 C34 C34 C34 C34 C33 C33 C33 C33 C33 C33 C30 C30 C30 C30 C30 C30 C30 C30 C30 C30 C25 C25 C25 C25 C25 C25 C23 C23 C25 C25 C25 C25 C25 C25 C25 C25 C25 C25 C25 C25 C25 C25 C25 C25 C25 C25 C26 C27 C27 C27 C27 C27 C27 C27 C27 C27 C29 C26 C29 C29 C29 C29 C26 C25 C25 C20 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C41 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C40 C44 C60 C70 C70 C70 C70 C70 C70 C71 C73 C73 C74 C74 C71 C71 C70 C70 C77 C77 C77 C77 C77 C77 C77 C77 C78 C78 C78 C78 C78 C84 C84 C84 C86 C86 C88 C88 C90 C90 C90 C90 C91 C92 C92 C92 C96 C96 C92 C97 C98 C95 C95 C95 C95 C92 C92 C88 C88 C89 C89 C89 C89 C89 C89 C90 C90 C87 C87 C87 C79 C79 C79 C80 C80 C80 C83 C81 C82 C82 C82 C82 C82 C83 C82 C80 C80 C81 C81 C80 C80 C80 C80 C80 C80 C80 C77 C70 C68 C68 C68 C68 C68 C68 C68 C68 C69 C60 C60 C60 C64 C64 C64 C64 C64 C64 C64 C64 C60 C60 C60 C60 C62 C62 C63 C63 C63 C63 C63 C63 C63 C63 C63 C60 C60 C60 C61 C65 C65 C65 C65 C65 C65 C65 C66 C66 C66 C66 C66 C66 C67 C67 C67 C67 C67 C67 C67 C67 C67 C67 C67 C60 C60 C60 C60 C60 C50 C51 C51 C52 C52 C52 C52 C52 C52 C52 C52 C52 C52 C52 C51 C51 C51 C51 C51 C51 C51 C51 C51 C51 C50 C53 C53 C54 C53 C53 C53 C54 C54 C54 C54 C54 C53 C53 C53 C53 C50 C50 C50 C50 C50 C50 C50 C50 C50 C50 C50 C55 C55 C56 C56 C56 C56 C56 C56 C56 C56 C57 C57 C57 C57 C59 C59 C58 C58 C58 C58 C57 C57 C57 C57 C57 C57 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C44 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C45 C44 C44 C44 C46 C46 C46 C46 C47 C47 C48 C49 C49 C49 C49 C49 C49 C49 C49 C49 C48 C48 C48 C46 C47 C47 C47 C47 C47 C47 C47 C46 C44 C42 C42 C42 C43 C43 C43 C43 C43 C43 C43 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C42 C40 C40 C40 C40 C40 C20 C20 C20 C20 C00 C00 C00 C00 C00 C00 C00 C00 C00 C01 C01 C00 C00 C00 C02 C02 C02 C02 C02 C02 C02 C02 C02 C02 C02 C01 C01 C01 C15 C15 C15 C15 C15 C18 C18 C19 C18 C17 C17 C17 C16 C15 C01 C15 C15 C10 C10 C10 C10 C10 C10 C10 C11 C11 C12 C12 C12 C12 C12 C12 C12 C12 C12 C12 C14 C14 C14 C14 C14 C14 C14 C14 C14 C14 C14 C14 C14 C14 C13 C13 C11 C11 C11 C11 C11 C11 C10 C03 C07 C07 C03 C04 C01 C01 C01 C01 C01 C01 C00 C00 C00 C00 C00 C00 C00 C00 C00 C00 C00
Franco-Sicilian Defense
Mengarini Opening
Portuguese Opening
Miguel Gambit
Anderssen Gambit
Thorold Gambit
Classical Variation, Bishop; Boi Variation
MacDonnell Gambit, Bishop
Labourdonnais-Denker Gambit, Bishop
McDonnell Double Gambit, Bishop
Philidor Variation, Bishop
Lewis Counter-Gambit, Bishop
Lewis Countergambit, Bishop
Walker Variation, Bishop
Lewis Gambit, Bishop
Stein Gambit, Bishop
Lopez Variation, Bishop
Lopez Gambit, Bishop
Khan Gambit, Bishop
King's Gambit Reversed, Bishop
Calabrese Counter-Gambit
Spielmann Attack, Bishop
Kitchner Folly, Bishop
Vienna Hybrid, Bishop
Hromadka Variation, Bishop
Ponziani Center Gambit, Bishop
Warsaw Gambit, Bishop
Urusov; Ouroussoff; Keidansky G
Keidansky Gambit, Bishop
Kreijcik Gambit, Bishop
Greco Gambit, Bishop
Horwitz Gambit, Bishop
Blanel Gambit, Bishop
Paschmann Gambit, Bishop
Tortoise Opening
Macleod Attack
Norwalder Gambit
Lasa Gambit
Whale Opening
Bavarian Gambit
Clam Variation; Leonardis Variation
Indian Opening
Weber Gambit
King's Gambit Reversed
Radisch Gambit
Beyer Gambit
Philidor Gambit
Center Game Accepted
Von der Lasa Gambit
Ross Gambit, Center
Danish Gambit
Sorensen Defense, Center
Danish Gambit Accepted
Copenhagen Defense, Danish Gambit
Schlechter Defense, Center
Classical Defense, Danish Gambit
Chigorin Defense, Danish Gambit
Svenonius Defense, Center
Halasz-McDonnell Gambit
Crocodile Variation, Center Game
Lanc-Arnold Gambit, Center
Scippler Gambit, Center
Hall Variation, Center
Paulsen Attack Variation, Center
Berger Variation, Center
Kupreichik Variation, Center
King's Head
Walkerling
Krejcik Gambit
King's Head Opening
Classical Defense, KGD
Heath Variation, KGD; Rotlewi Countergambit
Marshall (Euwe) Attack, KGD
Rubinstein Countergambit, KGD
Svenonius Variation, KGD
Senechaud Counter-Gambit, KGD
Mafia Defense, KGD
Hinrichsen Gambit, KGD
Falkbeer Countergambit Accepted, KGD
Miles Gambit, KGD
Nimzovich-Marshall Variation, KGD
Marshall C-G, KGD
Pickler Gambit, KGD
Nimzovich Variation, KGD; Anderssen Attack
Reti (Charousek) Variation, KGD
Morphy Defense, KGD
Keres Variation, KGD
Old Line, Falkbeer Countergambit, KGD
Modern Transfer, Falkbeer Countergambit, KGD
Blackbunre Attack, KGD
Orsini Gambit, KGA
Schurig Gambit, KGA
Bishop's Gambit, KGA
Kieseritzky Gambit, Bishop's Gambit, KGA
Lopez Defense, KGA
Bledow; Morphy Defense, KGA
Bledow Countergambit, KGA
Gianutio Counter-Gambit, KGA
Anderssen Defense, KGA
Maurian Defense, KGA
Cozio; Hanneken; Prussian; Lichtenhein
Bogoljubow Variation, KGA
Bogoljubov; Jaenisch Variation, KGA
Bryan; Kieseritzky Gambit, KGA
Greco Variation, KGA
Cozio Variation, KGA
Classical Defense, KGA; Lopez Variation
Grimm Attack, KGA
MacDonnell Attack, KGA
McDonnell Attack, KGA
Fraser Variation, KGA
Cozio Attack, KGA
Boden Variation, KGA
Jaenisch Variation, KGA
Jaenisch Variation, KGA
Lesser Bishop; Tartakower
Weiss Defense, KGA
Central; Polerio; Willemson, Steinitz
Gaga Gambit, KGA
Gama Gambit, KGA
Leonardo (Stamma) Gambit, KGA
Drunken King, KGA
Tumbleweed; King's Own, KGA
Keres, Mason, Parnu, Requena
Requena Gambit, KGA
Paris Gambit, KGA
Wild Cunningham Gambit, KGA
Bertin; Three Pawns Gambit, KGA
Neo-Cunningham Gambit, KGA; McCormick Defense
Abbazia Defense, KGA
Fischer Defense, KGA
Schulder Gambit, KGA
Gianutio Countergambit, KGA
Ghulam Kassim; Koch Gambit, KGA
Mayet Gambit, KGA
Philidor Gambit, KGA
Greco Gambit, KGA
Schultz Variation, KGA
Hanstein Gambit, KGA
Middleton Counter-Gambit, KGA
Greco-Lolli; Wild Muzio Gambit, KGA
Young Variation, KGA
Koch; Ghulam Kassim Gambit, KGA
Kotov Gambit
Ghulam-Kassim Gambit, KGA
Australian Gambit, KGA
MacDonnell Gambit, KGA
Salvio Gambit, KGA
Cochrane Variation, KGA
Herzfeld; Portuguese; Vienna, KGA
Santa Maria Defense, KGA
Silberschmidt Variation, KGA
Anderssen Counter-Attack, KGA
Muzio-Polerio Gambit, KGA; Wild Muzio
Brentano Defense, KGA
Holloway Defense, KGA
From Defense, KGA
Sarratt Defense, KGA
Young Gambit, KGA
Double Muzio Gambit, KGA
Paulsen Defense, KGA
Bello Gambit, KGA
Baldwin Gambit, KGA
Kling & Horwitz Counter-Attack, KGA
Blachy Gambit, KGA
Rosentreter Gambit, KGA
Rosentreter-Testa Gambit, KGA
Kieseritzky Gambit, KGA
Paulsen Defense, KGA
Campbell; Brentano; Morphy Var, KGA
Green; Kolisch Variation, KGA
Long Whip Variation, KGA
Cotter Gambit, KGA
Neumann Defense, KGA
Berlin Defense, KGA
Anderssen Defense, Kieseritsky Gambit, KGA
Anderssen-Cordel Gambit, KGA
Rice Gambit, KGA
Rice Gambit Accepted, KGA
Paulsen Defense Deferred, KGA
Rubinstein Variation, KGA
Riviere Variation, KGA
Rosenthal; Stockwhip Var, KGA
Allgaier; Cotter Cambit, KGA
Walker (Urusov) Attack, KGA
Urusov Attack, KGA
Thorold Attack, KGA
Horny Defense, KGA
Quaade; Taylor Variation, KGA
Becker; Anti-Kieseritzky Var, KGA
MacLeod Defense, KGA
Bonsch-Osmolovsky Variation, KGA
Schallop Defense, KGA
Tashkent Attack, KGA
Eisenberg Variation, KGA
Basman Gambit, KGA
Bilguer-Mirage Variation, KGA
Breyer; Hungarian; Carrera, KGA
Dodo Gambit, KGA
Carrera Gambit, KGA
Panteldakis Countergambit, KGD
Soller-Zilbermints Gambit, KGD
Zilbermints Double Countergambit; KGD
Queen's Knight Defense, KGD
Miles Defense, KGD
Zilbermints Double Gambit I, KGD
Petrov's Defense, KGD
Norwalde (Norwalder) Variation, KGD
Schubert Variation, KGD
Keene Defense, KGD
Zhuravlev Counter-Gambit, Vienna
Zhuraviev Countergambit, Vienna
Anderssen Defense, Vienna
Hamppe-Mietner Variation, Vienna
Giraffe Attack, Vienna
Omaha Gambit, Vienna
Meitner-Mieses Gambit, Vienna
Bronstein Gambit, Vienna
Fyfe Gambit, Vienna
Philidor Countergambit, Vienna
Alapin Variation, Vienna
Vienna Gambit
Quelle Gambit, Vienna
Steinitz Gambit, Vienna
Fraser-Minckwitz Variation, Vienna
Zukertort Defense, Vienna
Paulsen Defense, Vienna
Soerensen Defense, Vienna
Knight Variation, Vienna
Cunningham Defense, Vienna
Hamppe-Muzio Gambit, Vienna
Pierce Gambit, Vienna
Hamppe-Allgaier Gambit, Vienna
Hamppe-Allgaier-Thorold Gambit
Paulsen Variation, Vienna
Mariotti Gambit
Mengarini Variation, Vienna
Reversed Spanish, Vienna
Bishop Variation, Vienna
Eifel Gambit, Vienna
Modern Variation, Vienna
Boden-Kieseritzky Gambit, Vienna
Monster Variation, Vienna
Alekhine Variation, Vienna
Adams Gambit, Vienna
Frankenstein-Dracula Var, Vienna
Steinitz Variation, Vienna
Oxford Variation, Vienna
Breyer Variation, Vienna
Kaufmann Variation, Vienna
Paulsen Attack, Vienna
Bardeleben Variation, Vienna
Mieses Variation, Vienna
Polluck Gambit, Vienna
Erben Gambit, Vienna
Alapin Opening
Glatz Gambit; Busch-Gass Gambit
Chiodini Gambit
Jalalabad Defense
Gunderam Gambit
Queen's Pawn Counter-Gambit; Elephant Gambit
Maroczy; Elephant Gambit
Halasz-Jacobsen Gambit
Maroczy Gambit
Paulsen Counter-Gambit
Wasp Variation
Lopez Counter-Gambit, Philidor
Philidor Gambit
Alapin-Blackburne Gambit, Philidor
Exchange Variation, Philidor
Morphy Gambit, Philidor
Bird Gambit, Philidor
Paulsen Attack, Philidor
Larsen Variation, Philidor
Boden Variation, Philidor
Philidor Counter Attack
Zukertort Variation, Philidor
Hanham; Lord Variation, Philidor
Delmar Variation, Philidor
Schlechter Variation, Philidor
Krause Variation, Philidor
Steiner Variation, Philidor
Sharp Variation, Philidor
Jaenisch Counter-Attack, Philidor; Nimzovich Variation
Klein Variation, Philidor
Sokolsky Variation, Philidor
Rellstab Variation, Philidor
Larobok Variation, Philidor
Locock Variation, Philidor
Latvian; Greco Counter-Gambit
Senechaud Gambit, Latvian
Mayet Attack, Latvian
Strautins Gambit, Latvian
Polerio-Svedenborg Variation, Latvian
Poisoned Pawn Variation, Latvian
Duke of Courland Variation, Latvian
Morgado Defense, Latvian
Diepstraten Countergambit, Latvian
Clam Gambit, Latvian
Mason Countergambit, Latvian
Latvian Gambit Accepted
Lobster Gambit, Latvian
Mlotkowski Variation, Latvian
Fraser Defense, Latvian
Corkscrew Counter-Gambit, Latvian
Greco Variation, Latvian
Mail Line, Latvian Gambit Accepted
Bilguer Variation, Latvian
Bronstein Attack, Latvian
Nimzovich Attack, Latvian
Bronstein Gambit, Latvian
Foltys-Leonhardt Variation, Latvian Gambit
Foltys Variation, Latvian
Leonhardt Variation, Latvian
Damiano Defense
Damiano Gambit
Chigorin Gambit, Damiano
Paschman Wing Gambit
Bulgarian Variation, Ruy Lopez
Caro Variation, Ruy Lopez
Graz Variation, Ruy
Furman-Taimanov; Wing Var, Ruy; Norwegian Variation
Nightingale Gambit, Ruy Lopez
Alapin's Defense Deferred, Ruy Lopez
Classical Defense Deferred, Ruy Lopez
Modern Steinitz Defense, Ruy Lopez
Richter Variation, Ruy Lopez
Alapin Variation, Ruy Lopez
Siesta Variation, Ruy Lopez
Kopaiev Variation, Ruy Lopez
Keres Variation, Ruy Lopez
Noah's Ark Trap, Ruy Lopez
Schliemann Defense Deferred, Ruy
Jaenisch Gambit Deferred, Ruy Lopez
Treybel; Flohr; Exchange Var Deferred
Bayreuth Variation, ruy Lopez
Jaffe Gambit, Ruy Lopez
Anderssen Variation, Ruy Lopez
Duras Variation, Ruy Lopez
Mackenzie Variation, Ruy Lopez
Center Attack, Ruy Lopez
Nimzovich; Tarrasch Var, Ruy Lopez
Arkangelsk; Counterthrust Var, Ruy
Shannon Gambit, Ruy Lopez
Wing Attack, Ruy Lopez
Neo-Steinitz Defense, Ruy Lopez
Moeller Variation, Ruy Lopez
Center Attack, Ruy Lopez
Basque Gambit, Ruy Lopez
Lopez Four Knights, Ruy Lopez
Schlechter Variation, Ruy Lopez
English Variation, Ruy Lopez
Trajkovic Variation, Ruy Lopez
Pseudo-Marshall Var, Ruy Lopez
Balla Variation, Ruy Lopez
Suetin Variation, Ruy Lopez
Lutikov Variation, Ruy Lopez
Pilnik Variation, Ruy Lopez
Bogoljubow; Counterthrust Var, Ruy
Keres Variation, Ruy Lopez
Flohr; Zaitsev; Lenzerheide Var, Ruy
Kholmov Variation, Ruy Lopez
Borisenko Variation, Ruy Lopez
Keres Variation, Ruy Lopez
Spanish Benoni, Ruy Lopez
Classical Variation, Ruy Lopez
Rauzer Variation, Ruy Lopez
Borisenko Variation, Ruy Lopez
Arseniev Variation, Ruy Lopez
Romanishin Variation, Ruy Lopez
Simagin Variation, Ruy Lopez
Keres Defense, Ruy Lopez
Zaitsev System, Ruy Lopez
Rosen Attack, Ruy Lopez
Anti-Marshall Variation, Ruy Lopez
Marshall Attack, Ruy Lopez
Marshall Counter-Attack, Ruy Lopez
Steiner Variation, Ruy Lopez
Kevitz Variation, Ruy Lopez
Geller Variation, Ruy Lopez
Fischer Variation, Ruy Lopez
Suetin Variation, Ruy Lopez
Leonhardt Variation, Ruy Lopez
Averbakh Variation, Ruy Lopez
Kecskemet; Timbuktu Var, Ruy Lopez
Romanovsky Variation, Ruy Lopez
Central Countergambit, Ruy Lopez
Russian Defense, Ruy Lopez; C79; Lasker Defense
Brix Variation, Ruy Lopez
Schlechter Defense, Ruy Lopez
Berger Variation, Ruy Lopez
Harksen Gambit, Ruy Lopez
Malkin Variation, Ruy Lopez
Keres; Estonian; Howell; Moscow Var
Italian Variation, Ruy Lopez
St Petersburg Variation, Ruy Lopez
Dilworth; Kleczynski Var, Ruy Lopez
Motzko Variation, Ruy Lopez
Nenarokov Variation, Ruy Lopez
Breslau Variation, Ruy Lopez
Berlin Variation, Ruy Lopez
Bernstein Variation, Ruy Lopez
Karpov Gambit, Ruy Lopez
Adam Variation, Ruy Lopez
Ekstrom Variation, Ruy Lopez
Zukertort Variation, Ruy Lopez
Richter Variation, Ruy Lopez
Friess Attack, Ruy Lopez
Riga Variation, Ruy Lopez
Knoore Variation, Ruy Lopez
Tartakower Variation, Ruy Lopez
Skipworth Gambit, Ruy Lopez
Wormald Variation, Ruy Lopez
Cozio Defense Deferred, Ruy Lopez
Exchange Variation, Ruy Lopez
Lutikov Variation, Ruy Lopez Exchange
Keres Variation, Ruy Lopez
Romanovsky Variation, Ruy Lopez Exchange
Alekhjne Variation, Ruy Lopez Exchange
Barendregt-Fischer Var, Ruy Lopez
King's Bishop Variation, Ruy Lopez Exchange
Alapin Gambit, Ruy Lopez Exchange
Bronstein Variation, Ruy Lopez
Rotary-Albany Gambit, Ruy Lopez
Alapin Defense, Ruy Lopez
Alapin Gambit, Ruy Lopez
Spanish Wing Gambit, Ruy Lopez
Charousek Variation, Ruy Lopez
Konikowski Gambit, Ruy Lopez
Cordel Gambit, Ruy Lopez
Benelux Variation, Ruy Lopez
Boden Variation, Ruy Lopez
Zaitsev Variation, Ruy Lopez
Zukertort Gambit, Ruy Lopez
Lucena Defense, Ruy Lopez
Sawyer's Gambit, Ruy Lopez; Spanish Countergambit
Harding Gambit, Ruy Lopez
Fricke Gambit, Ruy Lopez
Nimzovich Attack, Ruy Lopez
Center Gambit, Ruy Lopez
Exchange Variation, Schliemann Ruy Lopez
Schoenemann Attack, Ruy Lopez
Jaenisch Gambit Accepted, Ruy Lopez
Berger (Dyckhoff) Variation, Ruy Lopez
Kostic Defense, Ruy Lopez
Moehring Variation, Ruy Lopez
Tartakower Variation, Ruy Lopez
Soviet Youth Variation, Ruy Lopez
Kostic Variation, Ruy Lopez
Nuremberg Defense, Ruy Lopez
Brentano Defense, Ruy Lopez
Barnes; Smyslov; Fianchetto Var, Ruy
Paulsen Variation, Ruy Lopez
Kaufmann Variation, Ruy Lopez
Anderssen Variation, Ruy Lopez
Duras Variation, Ruy Lopez
Mortimer Variation, Ruy Lopez
Mortimer Trap, Ruy Lopez
Nyholm Attack, Ruy Lopez
Beverwijk Variation, Ruy Lopez
Hedgehog Defense, Ruy Lopez
Closed Bernstein Variation, Ruy Lopez
Closed Showalter Variation, Ruy Lopez
Tarrasch Trap, Ruy Lopez
Closed Wolf Variation, Ruy Lopez
Fishing Pole Variation, Ruy Lopez
Rosenthal Variation, Ruy Lopez
Rio de Janeiro Variation, Ruy Lopez
Minckwitz Variation, Ruy Lopez
Trifunovic Variation, Ruy Lopez
Pillsbury Variation, Ruy Lopez
Zukertort Variation, Ruy Lopez
Berlin; Rio de Janerio Var, Ruy Lopez
Winawer Attack, Ruy Lopez
Cordel Defense, Ruy Lopez
L'Hermet Variation, Ruy Lopez
Westerinen Line, Ruy Lopez
Cozio Defense, Ruy Lopez
Tartakower Gambit, Ruy Lopez
Paulsen Variation, Cozio Defense, Ruy Lopez
Vinogradov Var, Ruy Lopez
Frankfort; Gunderam Var, Ruy Lopez
Giuoco Piano; Italian Opening
Lange Variation, Evans Gambit
Evans Gambit Accepted
Leonhardt Variation, Evans
Sokolsky Variation, Evans
Lasker Defense, Evans
Tartakower Attack, Evans
Pierce Defense, Evans
Schulen Defense, Evans
Waller Attack, Evans
Compromised Defense, Evans
Mieses Defense, Evans
Slow Variation, Evans
Richardson Attack, Evans
Normal Position, Evans Gambit
Ulvestad Variation, Evans
Paulsen Variation, Evans
Morphy Attack, Evans
Fraser Attack; Mortimer, Evans
Goering Attack, Evans
Stone-Ware Defense, Evans Gambit
Anderssen Variation, Evans
Cordel Line, Evans
Hein Countergambit, Evans
Jerome Gambit; Kentucky Opening
Labourdonnais Variation, Italian
Alexandre Gambit, Italian
Bird Attack, Italian
Giuoco Pianissimo
Center Attack, Italian
Grevo Gambit, Italian
Cracow Variation, Italian
Moeller (Therkatz) Attack, Italian
Therkatz-Herzog, Italian
Greco Variation, Italian
Mason Gambit, Italian
Albin Gambit, Italian
Lewis Defense, Italian; Closed Variation
Center Holding Variation, Italian
Mestel Variation, Italian
Giuoco Pianissimo
Lucchini Gambit; Italian
Italian Four Knights Variation
Canal Variation, Italian
Rosentreter Gambit, Italian
Italian Variation, Four Knights Game
Deutz Gambit, Italian
Hungarian Defense
Half Giuoco Piano; Semi-Italian Opening
Rousseau Gambit
Shilling (Kostic) Gambit, Italian
De Riviere Gambit
Modern Bishop's Opening
Perreux Variation, Two Knights Defense
Scotch Gambit
Max Lange Attack
Loman Defense, 2 Knights
Marshall Variation, 2 Knights
Double Gambit Accepted, Two Knights
Nachmanson Gambit, 2 Knights
Jordansky Attack, 2 Knights
Traxler; Wilkes-Barre Var, 2 Knights
Trencianske-Teplice Gambit, Two Knights
Ulvestad Variation, 2 Knights
Kurkin Gambit, Two Knights
Suhle Defense, Two Knights
Goering Variation, Two Knights
Bogoljubow Variation, Two Knights
Colman Variation, 2 Knights
Kieseritzky; Morphy Var, 2 Knights
Yankovich Variation, Two Knights
Kloss Gambit, Two Knights
Fritz Variation, 2 Knights
Berliner Variation, 2 Knights
Lolli Attack, 2 Knights
Fried Liver; Fegatello Attack, 2 Knights
Ponziani-Steintz Gambit, Two Knights
Taylor Opening; Inverted Hungarian
Inverted Hanham Opening
Basman Gambit
Ponziani; Staunton; English Knights
Spanish Variation, Ponziani
Nikitin Gambit, Ponziani
Caro Variation, Ponziani
Steinitz Variation, Ponziani
Leonhardt Variation, Ponziani
Ponziani Counter-Gambit
Schmidt Attack, Ponziani
Jaenisch Counterattack, Ponziani
Neumann Gambit, Ponziani
Breyer Opening, Ponziani
Vukovic Gambit, Ponziani
Dresden Opening
Scotch Game
MacLopez; Relfsson Gambit, Scotch
Scotch Gambit
London Defense, Scotch
Vitzhum Attack, Scotch
Paulsen; Anderssen C-A, Scotch
Benima Defense, Scotch
Goering Gambit, Scotch
Goering Gambit Declined, Scotch
Double Pawn Sacrifice, Goering Gambit
Bardeleben Variation, Scotch
Malaniuk Variation, Scotch
Gunsberg Defense, Scotch
Fleissig; Meitner Variation, Scotch
Blackburne Attack, Scotch
Millennium Variation, Scotch
Blumenfeld Variation, Scotch
Potter Variation, Scotch
Romanishin Variation, Scotch
Geller Variation, Scotch
Intermezzo Variation, Scotch
Alekhine Gambit, Scotch
Schmidt Var; Scotch Four Knights
Mieses Variation, Scotch
Tartakower Variation, Scotch
Steinitz; Pulling Variation, Scotch
Braune Variation, Scotch
Horwitz Attack, Scotch
Steinitz Variation, Scotch
Modern Defesne, Scotch
Fraser Attack, Scotch
Paulsen Variation, Scotch
Lolli Attack, Scotch
Napoleon Gambit, Scotch
Konstantinopolsky Opening
Schlechter Variation, Three Knights
Winawer Defense, Three Knights
Steinitz Defense, Three Knights
Rosenthal Variation, Three Knights
Gunsberg Variation, Four Kngiths
Provincial Opening, 4 Knights
Ranken Variation, 4 Knights
Paulsen Variation, 4 Knights
Svenonius Variation, 4 Knights
Janowski Variation, Four Knights
Symmetrical Variation, 4 Knights
Bernstein Variation, 4 Knights
Metger Unpin Variation, 4 Knights
Pillsbury Variation, 4 Knights
Maroczy Variation, 4 Knights
Blackburne Attack, 4 Knights
Classical Variation, Four Knights
Marshall Gambit, Four Knights
Rubinstein Variation, 4 Knights
Italian Variation, Four Knights
Noa Gambit, Four Knights
Bogoljubow (Scotch) Variation, 4 Knights
Oxford Gambit, Four Kngihts
Krause Gambit, Four Knights
Leonhardt Defense, Four Knights
Belgrade Gambit, 4 Knights
Schmid Gambit, Four Knights
Halloween Gambit, Four Knights
Chicago; Irish; Schulze-Muller Gambit
Urosov Gambit, Petroff
Boden-Kieseritzky Gambit, Petroff
Lichtenhein Defense, Petroff
Modern Attack, Petroff
Symmetrical Variation, Petroff
Suchting Gambit, Petroff
Tal Gambit, Petroff
Center Attack, Petroff
Trifunovic Variation, Petroff
Murret Variation, Petroff
Russian Three Knights Var, Petroff
Paulsen Attack, Petroff
Karklins-Martinovsky Variation, Petroff
Millenium Attack, Petroff
Kaufmann Variation, Petroff
French Attack, Petroff
Classical Attack, Petroff
Marshall Variation, Petroff
Tarrasch Variation, Petroff
Staunton Variation, Petroff
Jaenisch Variation, Petroff
Browne Attack, Petroff
Chigorin Variation, Petroff
Berger Variation, Petroff
Mason Variation, Petroff
Mason-Showalter Variation, Petroff
Nimzovich Attack, Petroff
Lasker Variation, Petroff
Cozio (Lasker) Attack, Petroff
Cochrane Gambit, Petroff
Stafford Gambit, Petroff
Damiano Variation, Petroff
Kholmov Gambit, Petroff
Moody Gambit, Petroff
Levenstein; Queen's Defense; Brazilian; Gunderam
Gunderam Gambit
McConnell Defense
Greco Defense
Labourdonnais Gambit
Napoleon Attack
Wayward Queen; Danvers; Parnham
Mellon Gambit
Kiddie Countergambit
Reti (Horwitz) Variation, French
Papa-Ticulat Gambit, French
Banzai-Leong Gambit, French
Pinova Gambit
Bird Invitation, French
Orthoschapp Variation, French
King"s Indian Attack
Reversed Philidor, French
Franco-Hiva Gambit, French
Baeuerle Gambit, French
Schlechter Variation, French
Alapin; Witaker Gambit, French
Alapin-Diemer Gambit, French
Diemer-Duhm Gambit, French
Extended Bishop Swap, French
Advance; Nimzovich; Steinitz Var, Fr
Frenkel Gambit, French
Paulsen Attack, French
Euwe Variation, French
Lputian Variation, French
Milner-Barry Gambit, French
Wade Variation, French
Nimzovich Variation, French
Ruisdonk Gambit, French
Nimzovich Attack, French
Exchange Variation, French
Monte Carlo Variation, French
Svenius Variation, French
Winckelmann-Riemer Gambit, French
Fingerslip Variation, French
Kunin Double Gambit, French
Schwarz's Line, French
Kondratiyev Variation, French
Swiss (Retreat) Variation, French
Armenian Line, French
Poisoned Pawn Variation, French Winawer
Maroczy-Willis Variation, French
Bogoljubow Variation, French
Icelandic Defense, French
Moscow Variation, French
Petrosian Variation, French
Delayed Exchange Variation, French
Canal Attack, French
Alekhine (Maroczy) Variation, French
Kan Variation, French
Marshall Variation, French
Rubinstein Variation, French
Rasa-Studier Gambit, French
Ellis Gambit, French
Blackburne Defense, French
Capablanca Line, French
Frere; Becker; Katilimov, Maric Var, French
Swiss Variation, French
Henneberger Variation, French
McCutcheon Variation, French
Olland (Dutch) Variation, French
Lasker Variation, French
Duras Variation, French
Tartakower Variation, French
Janowski Variation, French
Bernstein Variation, French
Chigorin Variation, French
Grigoriev Variation, French
Wolf Gambit, French
Anderssen (Richter) Attack, French
Tartakower Variation, French
Classical Variation, French
Tarrasch Variation, French
Steinitz Variation, French
Alapin Variation, French
Rubinstein Variation, French
Pollock Variation, French
Chatard-Alekhine; Albin Attack, Fr
Maroczy Variation, French
Albin-Chatard Gambit, French
Breyer Variation, French
Teichmann Variation, French
Spielmann Variation, French
Vistaneckis (Nimzovich) Variation, French
Frankfurt Variation, French
Burn Variation, French
Steinitz Variation, French
Bradford Attack, French
Brodsky-Jones Variation, French
Boleslavsky Variation, French
Gledhill Attack, French
Svenonius Variation, French
Morozevich Variation, French
Shaposhnikov Gambit, French
Chistiakov Defense, French
Haberditz Variation, French
Guimard Variation, French
Perseus Gambit, French
Carlson Gambit, French
Morphy Gambit, French
Hoffman Gambit
Franco-Hiva Gambit I, French
Mediterranean Defense, French
Steinitz Attack, French
Bourdonnais (La Bourdonnais) Variation, French
Reuter Gambit, French
Reti-Spielmann Attack, French
Queen's Knight, French
Pelikan Variation, French
Two Knight Variation, French
Knight Variation, French
Wing Gambit, French
Two Knights Variation, French
Chigorin Variation, French