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ECO volume B — Semi-open games

Volume B of the Encyclopaedia of Chess Openings spans ECO codes B00–B99 — semi-open games.

This encyclopedia catalogues 23 opening families and 847 variation lines in the volume. Each family page lists every line with a diagram of the family head.

All 772 openings in volume B

Barnes Defense · Borg Defense · Borg Defense: Borg Gambit · Borg Defense: Troon Gambit · Borg Defense: Zilbermints Gambit · Carr Defense · Carr Defense: Zilbermints Gambit · Duras Gambit · Fried Fox Defense · Goldsmith Defense · Goldsmith Defense: Picklepuss Defense · Hippopotamus Defense · Hippopotamus Defense · King's Pawn Game · Lemming Defense · Lion Defense: Lion's Jaw · Nimzowitsch Defense · Nimzowitsch Defense · Nimzowitsch Defense: Breyer Variation · Nimzowitsch Defense: Colorado Countergambit · Nimzowitsch Defense: Colorado Countergambit Accepted · Nimzowitsch Defense: Declined Variation · Nimzowitsch Defense: El Columpio Defense · Nimzowitsch Defense: El Columpio Defense, El Columpio Gambit · Nimzowitsch Defense: El Columpio Defense, Exchange Variation · Nimzowitsch Defense: El Columpio Defense, Pin Variation · Nimzowitsch Defense: Franco-Nimzowitsch Variation · Nimzowitsch Defense: French Connection · Nimzowitsch Defense: Hornung Gambit · Nimzowitsch Defense: Kennedy Variation · Nimzowitsch Defense: Kennedy Variation, Bielefelder Gambit · Nimzowitsch Defense: Kennedy Variation, Hammer Gambit · Nimzowitsch Defense: Kennedy Variation, Herford Gambit · Nimzowitsch Defense: Kennedy Variation, Keres Attack · Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation · Nimzowitsch Defense: Kennedy Variation, Main Line · Nimzowitsch Defense: Kennedy Variation, Paulsen Attack · Nimzowitsch Defense: Kennedy Variation, Riemann Defense · Nimzowitsch Defense: Kennedy Variation, de Smet Gambit · Nimzowitsch Defense: Mikenas Variation · Nimzowitsch Defense: Neo-Mongoloid Defense · Nimzowitsch Defense: Pirc Connection · Nimzowitsch Defense: Pseudo-Spanish Variation · Nimzowitsch Defense: Scandinavian Variation · Nimzowitsch Defense: Scandinavian Variation, Aachen Gambit · Nimzowitsch Defense: Scandinavian Variation, Advance Variation · Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation · Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation · Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Brandics Gambit · Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Erben Gambit · Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Heinola-Deppe Gambit · Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Nimzowitsch Gambit · Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Richter Gambit · Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Vehre Variation · Nimzowitsch Defense: Scandinavian Variation, Exchange Variation · Nimzowitsch Defense: Scandinavian Variation, Exchange Variation, Marshall Gambit · Nimzowitsch Defense: Wheeler Gambit · Nimzowitsch Defense: Williams Variation · Nimzowitsch Defense: Woodchuck Variation · Owen Defense · Owen Defense: Guatemala Defense · Owen Defense: Hekili-Loa Gambit · Owen Defense: Matovinsky Gambit · Owen Defense: Naselwaus Gambit · Owen Defense: Smith Gambit · Owen Defense: Unicorn Variation · Owen Defense: Wind Gambit · Pirc Defense · Pirc Defense · Pirc Defense · Pirc Defense: Roscher Gambit · Rat Defense: Antal Defense · Rat Defense: Fuller Gambit · Rat Defense: Harmonist · Rat Defense: Petruccioli Attack · Rat Defense: Spike Attack · St. George Defense · St. George Defense: Polish Variation · St. George Defense: San Jorge Variation · St. George Defense: Zilbermints Gambit · Van Geet Opening: Berlin Gambit · Ware Defense · Ware Defense: Snagglepuss Defense · Scandinavian Defense · Scandinavian Defense · Scandinavian Defense: Anderssen Counterattack · Scandinavian Defense: Anderssen Counterattack, Collijn Variation · Scandinavian Defense: Anderssen Counterattack, Goteborg System · Scandinavian Defense: Anderssen Counterattack, Orthodox Attack · Scandinavian Defense: Blackburne Gambit · Scandinavian Defense: Blackburne-Kloosterboer Gambit · Scandinavian Defense: Boehnke Gambit · Scandinavian Defense: Bronstein Variation · Scandinavian Defense: Classical Variation · Scandinavian Defense: Grünfeld Variation · Scandinavian Defense: Gubinsky-Melts Defense · Scandinavian Defense: Icelandic-Palme Gambit · Scandinavian Defense: Kiel Variation · Scandinavian Defense: Kloosterboer Gambit · Scandinavian Defense: Kádas Gambit · Scandinavian Defense: Lasker Variation · Scandinavian Defense: Main Line · Scandinavian Defense: Main Line, Leonhardt Gambit · Scandinavian Defense: Main Line, Mieses Variation · Scandinavian Defense: Marshall Variation · Scandinavian Defense: Mieses-Kotroc Variation · Scandinavian Defense: Modern Variation · Scandinavian Defense: Modern Variation · Scandinavian Defense: Modern Variation, Gipslis Variation · Scandinavian Defense: Modern Variation, Wing Gambit · Scandinavian Defense: Panov Transfer · Scandinavian Defense: Portuguese Gambit · Scandinavian Defense: Portuguese Gambit, Banker Variation · Scandinavian Defense: Portuguese Gambit, Classical Variation · Scandinavian Defense: Portuguese Gambit, Correspondence Refutation · Scandinavian Defense: Portuguese Gambit, Elbow Variation · Scandinavian Defense: Portuguese Gambit, Jadoul Variation · Scandinavian Defense: Portuguese Gambit, Lusophobe Variation · Scandinavian Defense: Portuguese Gambit, Melbourne Shuffle Variation · Scandinavian Defense: Portuguese Gambit, Wuss Variation · Scandinavian Defense: Richter Variation · Scandinavian Defense: Richter Variation · Scandinavian Defense: Schiller-Pytel Variation · Scandinavian Defense: Schiller-Pytel Variation, Modern Variation · Scandinavian Defense: Valencian Variation · Scandinavian Defense: Valencian Variation, Ilundain Variation · Scandinavian Defense: Valencian Variation, Main Line · Scandinavian Defense: Zilbermints Gambit · Van Geet Opening: Grünfeld Defense · Alekhine Defense · Alekhine Defense: Brooklyn Variation · Alekhine Defense: Brooklyn Variation, Everglades Variation · Alekhine Defense: Buckley Attack · Alekhine Defense: Hunt Variation, Lasker Simul Gambit · Alekhine Defense: Hunt Variation, Matsukevich Gambit · Alekhine Defense: Hunt Variation, Mikenas Gambit · Alekhine Defense: Kmoch Variation · Alekhine Defense: Krejcik Variation · Alekhine Defense: Krejcik Variation, Krejcik Gambit · Alekhine Defense: Maróczy Variation · Alekhine Defense: Mokele Mbembe · Alekhine Defense: Mokele Mbembe, Modern Line · Alekhine Defense: Mokele Mbembe, Vavra Defense · Alekhine Defense: Normal Variation · Alekhine Defense: Scandinavian Variation · Alekhine Defense: Scandinavian Variation, Geschev Gambit · Alekhine Defense: Scandinavian Variation, Myers Gambit · Alekhine Defense: Spielmann Gambit · Alekhine Defense: Steiner Variation · Alekhine Defense: Sämisch Attack · Alekhine Defense: The Squirrel · Alekhine Defense: Two Pawns Attack · Alekhine Defense: Two Pawns Attack, Lasker Variation · Alekhine Defense: Two Pawns Attack, Mikenas Variation · Alekhine Defense: Two Pawns Attack, Tate Variation · Alekhine Defense: Welling Variation · Alekhine Defense · Alekhine Defense · Alekhine Defense · Alekhine Defense: Balogh Variation · Alekhine Defense: Exchange Variation · Alekhine Defense: Exchange Variation, Karpov Variation · Alekhine Defense: Exchange Variation, Voronezh Variation · Alekhine Defense: Four Pawns Attack · Alekhine Defense: Four Pawns Attack, Cambridge Gambit · Alekhine Defense: Four Pawns Attack, Fianchetto Variation · Alekhine Defense: Four Pawns Attack, Ilyin-Zhenevsky Variation · Alekhine Defense: Four Pawns Attack, Korchnoi Variation · Alekhine Defense: Four Pawns Attack, Main Line · Alekhine Defense: Four Pawns Attack, Tartakower Variation · Alekhine Defense: Four Pawns Attack, Trifunovic Variation · Alekhine Defense: Hunt Variation · Alekhine Defense: Modern Variation, Alekhine Gambit · Alekhine Defense: O'Sullivan Gambit · Alekhine Defense: Modern Variation · Alekhine Defense: Modern Variation, Alburt Variation · Alekhine Defense: Modern Variation, Keres Variation · Alekhine Defense: Modern Variation, Larsen Variation · Alekhine Defense: Modern Variation, Larsen-Haakert Variation · Alekhine Defense: Modern Variation, Schmid Variation · Alekhine Defense: Modern Variation, Alekhine Variation · Alekhine Defense: Modern Variation, Flohr Variation · Alekhine Defense: Modern Variation, Main Line · Alekhine Defense: Modern Variation, Panov Variation · Alekhine Defense: Modern Variation, Vitolins Attack · Modern Defense · Modern Defense · Modern Defense: Anti-Modern · Modern Defense: Bishop Attack · Modern Defense: Bishop Attack, Bücker Gambit · Modern Defense: Bishop Attack, Monkey's Bum · Modern Defense: Dunworthy Variation · Modern Defense: Fianchetto Gambit · Modern Defense: Gurgenidze Defense · Modern Defense: Lizard Defense, Mittenberger Gambit · Modern Defense: Masur Gambit · Modern Defense: Modern Pterodactyl · Modern Defense: Mongredien Defense, with Nc3 · Modern Defense: Mongredien Defense, with Nf3 · Modern Defense: Norwegian Defense · Modern Defense: Norwegian Defense, Norwegian Gambit · Modern Defense: Pseudo-Austrian Attack · Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Declined · Modern Defense: Standard Defense · Modern Defense: Standard Line · Modern Defense: Three Pawns Attack · Modern Defense: Two Knights Variation · Modern Defense: Two Knights Variation, Suttles Variation · Modern Defense: Two Knights Variation, Suttles Variation, Tal Gambit · Modern Defense: Westermann Gambit · Modern Defense: Wind Gambit · Pterodactyl Defense: Austrian, Austriadactylus Western · Pterodactyl Defense: Austrian, Grand Prix Pterodactyl · Pterodactyl Defense: Austrian, Pteranodon · Pterodactyl Defense: Central, Anhanguera · Pterodactyl Defense: Central, Benoni Quetzalcoatlus · Pterodactyl Defense: Central, Quetzalcoatlus Gambit · Pterodactyl Defense: Eastern, Anhanguera · Pterodactyl Defense: Eastern, Benoni · Pterodactyl Defense: Eastern, Benoni Pteranodon · Pterodactyl Defense: Eastern, Benoni Pterodactyl · Pterodactyl Defense: Eastern, Pteranodon · Pterodactyl Defense: Eastern, Rhamphorhynchus · Pterodactyl Defense: Fianchetto, King Pterodactyl · Pterodactyl Defense: Fianchetto, Rhamphorhynchus · Pterodactyl Defense: Sicilian, Quetzalcoatlus · Pterodactyl Defense: Sicilian, Siroccopteryx · Pterodactyl Defense: Western, Anhanguera · Pterodactyl Defense: Western, Siroccopteryx · Rat Defense: Accelerated Gurgenidze · Czech Defense · King's Pawn Game: Maróczy Defense · Lion Defense · Lion Defense: Anti-Philidor · Lion Defense: Anti-Philidor, Lion's Cave · Lion Defense: Anti-Philidor, Lion's Cave, Lion Claw Gambit · Lion Defense: Bayonet Attack · Modern Defense: Geller's System · Pirc Defense · Pirc Defense: 150 Attack · Pirc Defense: 150 Attack, Inner Doll Defense · Pirc Defense: 150 Attack, Sveshnikov-Jansa Attack · Pirc Defense: Bayonet Attack · Pirc Defense: Byrne Variation · Pirc Defense: Chinese Variation · Pirc Defense: Kholmov System · Pirc Defense: Sveshnikov System · Pirc Defense: Classical Variation · Pirc Defense: Classical Variation · Pirc Defense: Classical Variation, Quiet System · Pirc Defense: Classical Variation, Quiet System, Chigorin Line · Pirc Defense: Classical Variation, Quiet System, Czech Defense · Pirc Defense: Classical Variation, Quiet System, Parma Defense · Pirc Defense: Classical Variation, Schlechter Variation · Pirc Defense: Austrian Attack · Pirc Defense: Austrian Attack · Pirc Defense: Austrian Attack, Dragon Formation · Pirc Defense: Austrian Attack, Kurajica Variation · Pirc Defense: Austrian Attack, Ljubojevic Variation · Pirc Defense: Austrian Attack, Unzicker Attack · Pirc Defense: Austrian Attack, Unzicker Attack, Bronstein Variation · Pirc Defense: Austrian Attack, Weiss Variation · Caro-Kann Defense · Caro-Kann Defense · Caro-Kann Defense · Caro-Kann Defense: Accelerated Panov Attack · Caro-Kann Defense: Accelerated Panov Attack · Caro-Kann Defense: Accelerated Panov Attack, Modern Variation · Caro-Kann Defense: Accelerated Panov Attack, Open Variation · Caro-Kann Defense: Accelerated Panov Attack, Pseudo-Scandinavian · Caro-Kann Defense: Accelerated Panov Attack, Van Weersel Attack · Caro-Kann Defense: Apocalypse Attack · Caro-Kann Defense: Breyer Variation · Caro-Kann Defense: Breyer Variation, Stein Attack · Caro-Kann Defense: Dinic Gambit · Caro-Kann Defense: Endgame Offer · Caro-Kann Defense: Endgame Variation · Caro-Kann Defense: Euwe Attack · Caro-Kann Defense: Goldman Variation · Caro-Kann Defense: Hector Gambit · Caro-Kann Defense: Hillbilly Attack · Caro-Kann Defense: Hillbilly Attack, Schaeffer Gambit · Caro-Kann Defense: Labahn Attack · Caro-Kann Defense: Labahn Attack, Double Gambit · Caro-Kann Defense: Labahn Attack, Polish Variation · Caro-Kann Defense: Scorpion-Horus Gambit · Caro-Kann Defense: Spike Variation · Caro-Kann Defense: Spike Variation, Scorpion-Grob Gambit · Caro-Kann Defense: St. Patrick's Attack · Caro-Kann Defense: Toikkanen Gambit · Caro-Kann Defense: Two Knights Attack · Caro-Kann Defense: Two Knights Attack, Mindeno Variation · Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line · Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Retreat Line · Caro-Kann Defense · Caro-Kann Defense · Caro-Kann Defense: Advance Variation · Caro-Kann Defense: Advance Variation, Bayonet Attack · Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense · Caro-Kann Defense: Advance Variation, Bronstein Variation · Caro-Kann Defense: Advance Variation, Prins Attack · Caro-Kann Defense: Advance Variation, Short Variation · Caro-Kann Defense: Advance Variation, Tal Variation · Caro-Kann Defense: Advance Variation, Van der Wiel Attack · Caro-Kann Defense: Advance Variation, Van der Wiel Attack · Caro-Kann Defense: Advance Variation, Van der Wiel Attack, Dreyev Defense · Caro-Kann Defense: Advance, Short Variation · Caro-Kann Defense: De Bruycker Defense · Caro-Kann Defense: De Bruycker Defense · Caro-Kann Defense: Edinburgh Variation · Caro-Kann Defense: Maróczy Variation · Caro-Kann Defense: Maróczy Variation, Maróczy Gambit · Caro-Kann Defense: Masi Variation · Caro-Kann Defense: Massachusetts Defense · Caro-Kann Defense: Mieses Attack, Landau Gambit · Caro-Kann Defense: Mieses Gambit · Caro-Kann Defense: Modern Variation · Caro-Kann Defense: Ulysses Gambit · Caro-Kann Defense: Exchange Variation · Caro-Kann Defense: Exchange Variation · Caro-Kann Defense: Exchange Variation · Caro-Kann Defense: Exchange Variation · Caro-Kann Defense: Exchange Variation, Bulla Attack · Caro-Kann Defense: Exchange Variation, Rubinstein Variation · Caro-Kann Defense: Panov Attack · Caro-Kann Defense: Panov Attack · Caro-Kann Defense: Panov Attack, Gunderam Attack · Caro-Kann Defense: Panov Attack, Modern Defense · Caro-Kann Defense: Panov Attack, Modern Defense, Carlsbad Line · Caro-Kann Defense: Panov Attack, Modern Defense, Czerniak Line · Caro-Kann Defense: Panov Attack, Modern Defense, Mieses Line · Caro-Kann Defense: Panov Attack, Modern Defense, Reifir-Spielmann Line · Caro-Kann Defense: Panov-Botvinnik, Herzog Defense · Caro-Kann Defense: Panov Attack · Caro-Kann Defense: Panov Attack · Caro-Kann Defense: Panov Attack · Caro-Kann Defense: Panov Attack · Caro-Kann Defense: Panov Attack, Fianchetto Defense · Caro-Kann Defense: Panov Attack, Fianchetto Defense, Fianchetto Gambit · Caro-Kann Defense: Panov Attack, Main Line · Caro-Kann Defense · Caro-Kann Defense · Caro-Kann Defense: Alekhine Gambit · Caro-Kann Defense: Alien Gambit · Caro-Kann Defense: Campomanes Attack · Caro-Kann Defense: Forgacs Variation · Caro-Kann Defense: Gurgenidze Counterattack · Caro-Kann Defense: Gurgenidze System · Caro-Kann Defense: Main Line · Caro-Kann Defense: Rasa-Studier Gambit · Caro-Kann Defense: Tartakower Variation · Caro-Kann Defense: Tartakower Variation, Perlis Line · Caro-Kann Defense: von Hennig Gambit · Caro-Kann Defense: Bronstein-Larsen Variation · Caro-Kann Defense: Finnish Variation · Caro-Kann Defense: Karpov Variation · Caro-Kann Defense: Karpov Variation, Modern Main Line · Caro-Kann Defense: Karpov Variation, Modern Variation · Caro-Kann Defense: Karpov Variation, Modern Variation, Ivanchuk Defense · Caro-Kann Defense: Karpov Variation, Modern Variation, Kasparov Attack · Caro-Kann Defense: Karpov Variation, Smyslov Variation · Caro-Kann Defense: Karpov Variation, Smyslov Variation, Main Line · Caro-Kann Defense: Karpov Variation, Tiviakov-Fischer Attack · Caro-Kann Defense: Classical Variation · Caro-Kann Defense: Classical Variation, Flohr Variation · Caro-Kann Defense: Classical Variation, Main Line · Caro-Kann Defense: Classical Variation, Maróczy Attack · Caro-Kann Defense: Martian Gambit · Caro-Kann Defense: Classical Variation · Caro-Kann Defense: Classical Variation, Lobron System · Caro-Kann Defense: Classical Variation, Seirawan Variation · Caro-Kann Defense: Classical Variation, Spassky Variation · Sicilian Defense · Sicilian Defense: Amazon Attack · Sicilian Defense: Big Clamp Formation · Sicilian Defense: Bowdler Attack · Sicilian Defense: Brick Variation · Sicilian Defense: Czerniak Attack · Sicilian Defense: Czerniak Attack, Queen Fianchetto Variation · Sicilian Defense: Euwe Attack, Prins Gambit · Sicilian Defense: Gloria Variation · Sicilian Defense: Grob Variation · Sicilian Defense: Keres Variation · Sicilian Defense: King David's Opening · Sicilian Defense: Kronberger Variation · Sicilian Defense: Kronberger Variation, Nemeth Gambit · Sicilian Defense: Lasker-Dunne Attack · Sicilian Defense: Mengarini Variation · Sicilian Defense: Myers Attack, with a4 · Sicilian Defense: Myers Attack, with h4 · Sicilian Defense: Staunton-Cochrane Variation · Sicilian Defense: Wing Gambit · Sicilian Defense: Wing Gambit, Abrahams Variation · Sicilian Defense: Wing Gambit, Carlsbad Variation · Sicilian Defense: Wing Gambit, Marienbad Variation · Sicilian Defense: Wing Gambit, Marshall Variation · Sicilian Defense: Wing Gambit, Nanu Gambit · Sicilian Defense: Wing Gambit, Romanian Defense · Sicilian Defense: Wing Gambit, Santasiere Variation · Bird Opening: Dutch Variation, Batavo Gambit · Sicilian Defense: Coles Sicilian Gambit · Sicilian Defense: Halasz Gambit · Sicilian Defense: McDonnell Attack · Sicilian Defense: McDonnell Attack, Tal Gambit · Sicilian Defense: McDonnell Attack, Toilet Variation · Sicilian Defense: Morphy Gambit · Sicilian Defense: Morphy Gambit, Andreaschek Gambit · Sicilian Defense: Smith-Morra Gambit · Sicilian Defense: Smith-Morra Gambit · Sicilian Defense: Smith-Morra Gambit Accepted · Sicilian Defense: Smith-Morra Gambit Accepted, Chicago Defense · Sicilian Defense: Smith-Morra Gambit Accepted, Chicago Defense · Sicilian Defense: Smith-Morra Gambit Accepted, Classical Formation · Sicilian Defense: Smith-Morra Gambit Accepted, Danish Variation · Sicilian Defense: Smith-Morra Gambit Accepted, Fianchetto Defense · Sicilian Defense: Smith-Morra Gambit Accepted, Fianchetto Defense · Sicilian Defense: Smith-Morra Gambit Accepted, Fianchetto Defense · Sicilian Defense: Smith-Morra Gambit Accepted, Fianchetto Defense · Sicilian Defense: Smith-Morra Gambit Accepted, Finegold Defense · Sicilian Defense: Smith-Morra Gambit Accepted, Kan Formation · Sicilian Defense: Smith-Morra Gambit Accepted, Larsen Defense · Sicilian Defense: Smith-Morra Gambit Accepted, Morphy Defense · Sicilian Defense: Smith-Morra Gambit Accepted, Morphy Defense Deferred · Sicilian Defense: Smith-Morra Gambit Accepted, Paulsen Formation · Sicilian Defense: Smith-Morra Gambit Accepted, Pin Defense · Sicilian Defense: Smith-Morra Gambit Accepted, Scheveningen Formation · Sicilian Defense: Smith-Morra Gambit Accepted, Siberian Variation · Sicilian Defense: Smith-Morra Gambit Accepted, Siberian Variation, Siberian Trap · Sicilian Defense: Smith-Morra Gambit Accepted, Sozin Formation · Sicilian Defense: Smith-Morra Gambit Accepted, Taimanov Formation · Sicilian Defense: Smith-Morra Gambit Declined, Alapin Formation · Sicilian Defense: Smith-Morra Gambit Declined, Center Formation · Sicilian Defense: Smith-Morra Gambit Declined, Dubois Variation · Sicilian Defense: Smith-Morra Gambit Declined, Push Variation · Sicilian Defense: Smith-Morra Gambit Declined, Scandinavian Formation · Sicilian Defense: Smith-Morra Gambit Declined, Wing Formation · Sicilian Defense: Alapin Variation · Sicilian Defense: Alapin Variation, Anti-Alapin Gambit · Sicilian Defense: Alapin Variation, Barmen Defense · Sicilian Defense: Alapin Variation, Barmen Defense · Sicilian Defense: Alapin Variation, Barmen Defense · Sicilian Defense: Alapin Variation, Barmen Defense, Central Exchange · Sicilian Defense: Alapin Variation, Barmen Defense, Endgame Variation · Sicilian Defense: Alapin Variation, Barmen Defense, Milner-Barry Attack · Sicilian Defense: Alapin Variation, Barmen Defense, Modern Line · Sicilian Defense: Alapin Variation, Smith-Morra Declined · Sicilian Defense: Alapin Variation, Stoltz Attack · Sicilian Defense: Alapin Variation, Stoltz Attack, Ivanchuk Line · Sicilian Defense: Delayed Alapin Variation · Sicilian Defense: Delayed Alapin Variation · Sicilian Defense: Heidenfeld Variation · Sicilian Defense: Closed · Sicilian Defense: Closed · Sicilian Defense: Closed · Sicilian Defense: Closed, Carlsen Variation · Sicilian Defense: Closed, Chameleon Variation · Sicilian Defense: Closed, Grob Attack · Sicilian Defense: Closed, Korchnoi Defense · Sicilian Defense: Closed, Portland Attack · Sicilian Defense: Closed, Traditional · Sicilian Defense: Grand Prix Attack · Sicilian Defense: Grand Prix Attack, Schofman Variation · Sicilian Defense: Closed · Sicilian Defense: Closed · Sicilian Defense: Closed, Fianchetto Variation · Sicilian Defense: Closed, Smyslov Variation · Sicilian Defense: Closed · Sicilian Defense: Closed · Sicilian Defense: Closed, Botvinnik Defense, Edge Variation · Sicilian Defense: Closed, Botvinnik Defense, with Nge2 · Sicilian Defense: Closed, Botvinnik Defense, with f4 · Sicilian Defense: Closed · Modern Defense: Pterodactyl Variation · Pterodactyl Defense: Sicilian, Anhanguera · Pterodactyl Defense: Sicilian, Benoni Gambit · Pterodactyl Defense: Sicilian, Pteranodon · Pterodactyl Defense: Sicilian, Rhamphorhynchus · Pterodactyl Defense: Sicilian, Unpin · Pterodactyl Defense: Western, Pterodactyl · Pterodactyl Defense: Western, Rhamphorhynchus · Sicilian Defense · Sicilian Defense: Acton Extension · Sicilian Defense: Brussels Gambit · Sicilian Defense: Bücker Variation · Sicilian Defense: Double-Dutch Gambit · Sicilian Defense: Frederico Variation · Sicilian Defense: Hyperaccelerated Dragon · Sicilian Defense: Hyperaccelerated Dragon · Sicilian Defense: Hyperaccelerated Pterodactyl · Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation · Sicilian Defense: Jalalabad Variation · Sicilian Defense: Katalimov Variation · Sicilian Defense: Mongoose Variation · Sicilian Defense: Polish Gambit · Sicilian Defense: Quinteros Variation · Sicilian Defense: O'Kelly Variation · Sicilian Defense: O'Kelly Variation, Aronin System · Sicilian Defense: O'Kelly Variation, Kieseritzky System · Sicilian Defense: O'Kelly Variation, Maróczy Bind · Sicilian Defense: O'Kelly Variation, Maróczy Bind, Paulsen Line · Sicilian Defense: O'Kelly Variation, Maróczy Bind, Robatsch Line · Sicilian Defense: O'Kelly Variation, Normal System · Sicilian Defense: O'Kelly Variation, Normal System, Cortlever Gambit · Sicilian Defense: O'Kelly Variation, Normal System, Smith-Morra Line · Sicilian Defense: O'Kelly Variation, Normal System, Taimanov Line · Sicilian Defense: O'Kelly Variation, Normal System, Zagorovsky Line · Sicilian Defense: O'Kelly Variation, Quiet System · Sicilian Defense: O'Kelly Variation, Réti System · Sicilian Defense: O'Kelly Variation, Venice System · Sicilian Defense: O'Kelly Variation, Venice System, Barcza Line · Sicilian Defense: O'Kelly Variation, Venice System, Gambit Line · Sicilian Defense: O'Kelly Variation, Venice System, Ljubojevic Line · Sicilian Defense: O'Kelly Variation, Venice System, Steiner Line · Sicilian Defense: O'Kelly Variation, Wing Gambit · Sicilian Defense: O'Kelly Variation, Yerevan System · Sicilian Defense: Nimzowitsch Variation · Sicilian Defense: Nimzowitsch Variation, Advance Variation · Sicilian Defense: Nimzowitsch Variation, Closed Variation · Sicilian Defense: Nimzowitsch Variation, Exchange Variation · Sicilian Defense: Nimzowitsch Variation, Main Line · Sicilian Defense: Closed, Anti-Sveshnikov Variation · Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line · Sicilian Defense: Closed, Anti-Sveshnikov Variation, with Nf6 · Sicilian Defense: Closed, Anti-Sveshnikov Variation, with d6 · Sicilian Defense: Nyezhmetdinov-Rossolimo Attack · Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Brooklyn Retreat Defense · Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit · Sicilian Defense: Old Sicilian · Sicilian Defense: Portsmouth Gambit · Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation · Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld Gambit · Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Lutikov Gambit · Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack · Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Gurgenidze Variation · Sicilian Defense: Accelerated Dragon · Sicilian Defense: Flohr Variation · Sicilian Defense: Franco-Sicilian Variation · Sicilian Defense: Godiva Variation · Sicilian Defense: Kalashnikov Variation · Sicilian Defense: Löwenthal Variation · Sicilian Defense: Nimzo-American Variation · Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line · Sicilian Defense: Open · Sicilian Defense: Open · Sicilian Defense: Open · Sicilian Defense: Lasker-Pelikan Variation · Sicilian Defense: Lasker-Pelikan Variation, Bird Variation · Sicilian Defense: Lasker-Pelikan Variation, Exchange Variation · Sicilian Defense: Lasker-Pelikan Variation, Retreat Variation · Sicilian Defense: Lasker-Pelikan Variation, Schlechter Variation · Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation · Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation · Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation · Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk Variation · Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Peresypkin's Sacrifice · Sicilian Defense: Open · Sicilian Defense: Accelerated Dragon, Exchange Variation · Sicilian Defense: Accelerated Dragon, Modern Variation · Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation · Sicilian Defense: Dragon Variation, Modern Bc4 Variation · Sicilian Defense: Accelerated Dragon, Maróczy Bind · Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation · Sicilian Defense: Accelerated Dragon, Maróczy Bind · Sicilian Defense: Accelerated Dragon, Simagin Variation · Sicilian Defense: Accelerated Dragon, Maróczy Bind · Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation · Sicilian Defense: Alapin Variation, Sherzer Variation · Sicilian Defense: Delayed Alapin Variation, with e6 · Sicilian Defense: Drazic Variation · Sicilian Defense: French Variation · Sicilian Defense: French Variation, Normal · Sicilian Defense: French Variation, Open · Sicilian Defense: French Variation, Westerinen Attack · Sicilian Defense: Gaw-Paw Variation · Sicilian Defense: Kan Variation, Wing Attack, Fianchetto Variation · Sicilian Defense: Kramnik Variation · Sicilian Defense: Kveinis Variation · Sicilian Defense: Marshall Counterattack · Sicilian Defense: Paulsen-Basman Defense · Sicilian Defense: Pin Variation · Sicilian Defense: Pin Variation, Jaffe Variation · Sicilian Defense: Pin Variation, Koch Variation · Sicilian Defense: Smith-Morra Gambit Deferred · Sicilian Defense: Wing Gambit Deferred · Sicilian Defense: Kan Variation · Sicilian Defense: Kan Variation, Maróczy Bind, Bronstein Variation · Sicilian Defense: Kan Variation, Maróczy Bind, Bronstein Variation · Sicilian Defense: Kan Variation, Maróczy Bind, Hedgehog Variation · Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation · Sicilian Defense: Kan Variation, Gipslis Variation · Sicilian Defense: Kan Variation, Modern Variation · Sicilian Defense: Kan Variation, Polugaevsky Variation · Sicilian Defense: Kan Variation, Swiss Cheese Variation · Sicilian Defense: Kan Variation, Knight Variation · Sicilian Defense: Kan Variation, Wing Attack · Sicilian Defense: Kan Variation, Wing Attack, Christiansen's Dream · Sicilian Defense: Kan Variation, Wing Attack, Spraggett Attack · Sicilian Defense: Taimanov Variation · Sicilian Defense: Taimanov Variation, Gary Gambit · Sicilian Defense: Taimanov Variation, Modern Line · Sicilian Defense: Taimanov Variation, Szén Variation · Sicilian Defense: Four Knights Variation · Sicilian Defense: Four Knights Variation, American Attack · Sicilian Defense: Four Knights Variation, Cobra Variation · Sicilian Defense: Four Knights Variation, Exchange Variation · Sicilian Defense: Four Knights Variation, Sveshnikov Transfer · Sicilian Defense: Taimanov Variation · Sicilian Defense: Taimanov Variation · Sicilian Defense: Taimanov Variation, Bastrikov Variation · Sicilian Defense: Taimanov Variation, Bastrikov Variation, Ponomariov Gambit · Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack · Sicilian Defense: Taimanov Variation, Bastrikov Variation · Sicilian Defense · Sicilian Defense · Sicilian Defense: Delayed Alapin Variation, Basman-Palatnik Double Gambit · Sicilian Defense: Delayed Alapin Variation, Basman-Palatnik Gambit · Sicilian Defense: Delayed Alapin Variation, with d6 · Sicilian Defense: Kopec System · Sicilian Defense: Kotov Gambit · Sicilian Defense: Modern Variations · Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order · Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order Accepted · Sicilian Defense: Modern Variations, Tartakower · Sicilian Defense: Wing Gambit, Deferred Variation · Sicilian Defense: Moscow Variation · Sicilian Defense: Moscow Variation, Dorfman Gambit · Sicilian Defense: Moscow Variation, Moscow Gambit · Sicilian Defense: Moscow Variation, Haag Gambit · Sicilian Defense: Moscow Variation, Main Line · Sicilian Defense: Moscow Variation, Sokolsky Variation · Sicilian Defense: Chekhover Variation · Sicilian Defense: Chekhover Variation, Zaitsev Defense · Sicilian Defense: Dragon Variation, Accelerated Dragon · Sicilian Defense: Modern Variations, Ginsberg Gambit · Sicilian Defense: Modern Variations, Main Line · Sicilian Defense: Prins Variation · Sicilian Defense: Prins Variation, Venice Attack · Sicilian Defense: Classical Variation · Sicilian Defense: Classical Variation, Fianchetto Variation · Sicilian Defense: Kupreichik Variation · Sicilian Defense: Spielmann Variation · Sicilian Defense: Venice Attack · Sicilian Defense: Classical Variation, Anti-Sozin Variation · Sicilian Defense: Classical Variation, Sozin Attack · Sicilian Defense: Magnus Smith Trap · Sicilian Defense: Boleslavsky Variation · Sicilian Defense: Boleslavsky Variation, Louma Variation · Sicilian Defense: Classical Variation · Sicilian Defense: Classical Variation, Dragon Transfer · Sicilian Defense: Boleslavsky Variation · Sicilian Defense: Richter-Rauzer Variation · Sicilian Defense: Richter-Rauzer Variation, Dragon Variation · Sicilian Defense: Richter-Rauzer Variation, Modern Variation · Sicilian Defense: Richter-Rauzer Variation, Modern Variation · Sicilian Defense: Richter-Rauzer Variation · Sicilian Defense: Richter-Rauzer Variation · Sicilian Defense: Richter-Rauzer Variation, Exchange Variation · Sicilian Defense: Richter-Rauzer Variation, Podebrady Variation · Sicilian Defense: Richter-Rauzer Variation, Vitolins Variation · Sicilian Defense: Richter-Rauzer Variation, Classical Variation · Sicilian Defense: Richter-Rauzer Variation, Classical Variation, Kantscher Line · Sicilian Defense: Richter-Rauzer Variation, Ivanov Variation · Sicilian Defense: Richter-Rauzer Variation, Traditional Variation · Sicilian Defense: Richter-Rauzer Variation, Classical Variation · Sicilian Defense: Richter-Rauzer Variation, Classical Variation · Sicilian Defense: Richter-Rauzer Variation, Classical Variation · Sicilian Defense: Richter-Rauzer Variation, Rauzer Attack · Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations · Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation · Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation · Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack · Sicilian Defense: Dragon Variation · Sicilian Defense: Dragon Variation, Classical Variation · Sicilian Defense: Dragon Variation, Fianchetto Variation · Sicilian Defense: Dragon Variation, Levenfish Variation · Sicilian Defense: Dragon Variation, Levenfish Variation, Main Line · Sicilian Defense: Dragon Variation · Sicilian Defense: Dragon Variation, Classical Variation · Sicilian Defense: Dragon Variation, Classical Variation · Sicilian Defense: Dragon Variation, Classical Variation · Sicilian Defense: Dragon Variation, Classical Variation, Amsterdam Variation · Sicilian Defense: Dragon Variation, Classical Variation, Grigoriev Variation · Sicilian Defense: Dragon Variation, Classical Variation · Sicilian Defense: Dragon Variation, Classical Variation, Battery Variation · Sicilian Defense: Dragon Variation, Classical Variation, Zollner Gambit · Sicilian Defense: Dragon Variation, Classical Variation, Alekhine Line · Sicilian Defense: Dragon Variation, Classical Variation, Bernard Defense · Sicilian Defense: Dragon Variation, Classical Variation, Maróczy Line · Sicilian Defense: Dragon Variation, Classical Variation, Normal Line · Sicilian Defense: Dragon Variation, Classical Variation, Spielmann Variation · Sicilian Defense: Dragon Variation, Classical Variation, Stockholm Attack · Sicilian Defense: Dragon Variation, Classical Variation, Tartakower Line · Sicilian Defense: Dragon Variation, Yugoslav Attack, Belezky Line · Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations · Sicilian Defense: Dragon Variation, Yugoslav Attack, Hungarian Dragon · Sicilian Defense: Dragon Variation, Yugoslav Attack · Sicilian Defense: Dragon Variation, Yugoslav Attack · Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line · Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation · Sicilian Defense: Dragon Variation, Yugoslav Attack, Byrne Variation · Sicilian Defense: Dragon Variation, Yugoslav Attack, Czerniak Variation · Sicilian Defense: Dragon Variation, Yugoslav Attack, Czerniak Variation · Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line · Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line · Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line · Sicilian Defense: Dragon Variation, Yugoslav Attack, Sosonko Variation · Sicilian Defense: Dragon Variation, Yugoslav Attack · Sicilian Defense: Dragon Variation, Yugoslav Attack, Chinese Dragon · Sicilian Defense: Dragon Variation, Yugoslav Attack, Old Line · Sicilian Defense: Dragon Variation, Yugoslav Attack, Topalov Variation · Sicilian Defense: Dragon Variation, Yugoslav Attack · Sicilian Defense: Dragon Variation, Yugoslav Attack, Soltis Variation · Sicilian Defense: Scheveningen Variation · Sicilian Defense: Scheveningen Variation, English Attack, with Qd2 · Sicilian Defense: Scheveningen Variation, Fianchetto Variation · Sicilian Defense: Scheveningen Variation, Vitolins Variation · Sicilian Defense: Scheveningen Variation, Keres Attack · Sicilian Defense: Scheveningen Variation, Matanovic Attack · Sicilian Defense: Scheveningen Variation, Tal Variation · Sicilian Defense: Scheveningen Variation, Classical Variation · Sicilian Defense: Scheveningen Variation, Modern Variation · Sicilian Defense: Scheveningen Variation, Modern Variation · Sicilian Defense: Scheveningen Variation, Modern Variation · Sicilian Defense: Najdorf Variation, Scheveningen Variation · Sicilian Defense: Scheveningen Variation, Classical Variation · Sicilian Defense: Scheveningen Variation, Classical Variation · Sicilian Defense: Scheveningen Variation, Classical Main Line · Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation · Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation · Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation · Sicilian Defense: Sozin Attack · Sicilian Defense: Sozin Attack, Flank Variation · Sicilian Defense: Sozin Attack, Fischer Variation · Sicilian Defense: Sozin Attack, Leonhardt Variation · Sicilian Defense: Sozin Attack, Main Line · Sicilian Defense: Sozin Attack, Main Line, Sherbakov Variation · Sicilian Defense: Velimirovic Attack · Sicilian Defense: Najdorf Variation · Sicilian Defense: Najdorf Variation, Adams Attack · Sicilian Defense: Najdorf Variation, Dekker Gambit · Sicilian Defense: Najdorf Variation, English Attack · Sicilian Defense: Najdorf Variation, English Attack · Sicilian Defense: Najdorf Variation, English Attack · Sicilian Defense: Najdorf Variation, English Attack · Sicilian Defense: Najdorf Variation, English Attack · Sicilian Defense: Najdorf Variation, English Attack, Anti-English · Sicilian Defense: Najdorf Variation, Lipnitsky Attack · Sicilian Defense: Najdorf Variation, Petronić Attack · Sicilian Defense: Najdorf Variation, Yates Variation · Sicilian Defense: Scheveningen Variation, Delayed Keres Attack · Sicilian Defense: Scheveningen Variation, Delayed Keres Attack, Perenyi Gambit · Sicilian Defense: Scheveningen Variation, English Attack, with f3 · Sicilian Defense: Najdorf Variation, Zagreb Variation · Sicilian Defense: Najdorf Variation, Opocensky Variation · Sicilian Defense: Najdorf Variation, Opocensky Variation · Sicilian Defense: Najdorf Variation, Opocensky Variation, Modern Line · Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line · Sicilian Defense: Najdorf Variation, Amsterdam Variation · Sicilian Defense: Najdorf Variation · Sicilian Defense: Najdorf Variation, Ivkov Variation · Sicilian Defense: Najdorf Variation · Sicilian Defense: Najdorf Variation · Sicilian Defense: Najdorf Variation, Neo-Classical Defense · Sicilian Defense: Najdorf Variation, Polugaevsky Variation · Sicilian Defense: Najdorf Variation, Polugaevsky Variation, Simagin Line · Sicilian Defense: Najdorf Variation, Poisoned Pawn Accepted · Sicilian Defense: Najdorf Variation, Poisoned Pawn Variation · Sicilian Defense: Najdorf Variation · Sicilian Defense: Najdorf Variation, Browne Variation · Sicilian Defense: Najdorf Variation, Goteborg Variation · Sicilian Defense: Najdorf Variation, Traditional Line · Sicilian Defense: Najdorf Variation, Main Line