All Chess Openings – ECO Database

Every opening below links to a dedicated page with the moves, the ECO code, the key strategic ideas and an interactive board to practice the line against the engine.

Caro-Kann Defense

• Caro-Kann Defense (B15)
• Caro-Kann Defense: Advance Variation (B12)
• Caro-Kann Defense: Panov Attack (B14)
• Caro-Kann Defense: Classical Variation (B19)
• Caro-Kann Defense: Exchange Variation (B13)
• Caro-Kann Defense: Breyer Variation (B10)
• Caro-Kann Defense: Euwe Attack (B10)
• Caro-Kann Defense: Hillbilly Attack (B10)
• Caro-Kann Defense: Labahn Attack (B10)
• Caro-Kann Defense: Spike Variation (B10)
• Caro-Kann Defense: Accelerated Panov Attack (B10)

French Defense

• French Defense (C00)
• French Defense: Winawer Variation (C15)
• French Defense: Advance Variation (C02)
• French Defense: Tarrasch Variation (C03)
• French Defense: Rubinstein Variation (C10)
• French Defense: Exchange Variation (C01)
• French Defense: Classical Variation (C14)

Italian Game

• Italian Game (C50)
• Italian Game: Giuoco Piano (C50)
• Italian Game: Two Knights Defense (C58)
• Italian Game: Hungarian Defense (C50)
• Italian Game: Evans Gambit (C52)

King's Indian Defense

• King's Indian Defense (E61)
• King's Indian Defense: Fianchetto Variation (E60)
• King's Indian Defense: Averbakh Variation (E73)
• King's Indian Defense: Petrosian Variation (E92)
• King's Indian Defense: Sämisch Variation (E86)
• King's Indian Defense: Four Pawns Attack (E77)

London System

• London System (A48)

Nimzo-Indian Defense

• Nimzo-Indian Defense (E50)
• Nimzo-Indian Defense: Classical Variation (E32)
• Nimzo-Indian Defense: Sämisch Variation (E29)

Queen's Gambit

• Queen's Gambit (D06)

Queen's Gambit Declined

• Queen's Gambit Declined (D53)
• Queen's Gambit Declined: Exchange Variation (D35)
• Queen's Gambit Declined: Ragozin Defense (D38)
• Queen's Gambit Declined: Semi-Tarrasch Defense (D41)
• Queen's Gambit Declined: Orthodox Defense (D60)
• Queen's Gambit Declined: Vienna Variation (D30)

Ruy Lopez

• Ruy Lopez (C60)
• Ruy Lopez: Berlin Defense (C65)
• Ruy Lopez: Morphy Defense (C78)
• Ruy Lopez: Closed (C92)
• Ruy Lopez: Exchange Variation (C68)
• Ruy Lopez: Marshall Attack (C89)

Sicilian Defense

• Sicilian Defense (B50)
• Sicilian Defense: Open (B33)
• Sicilian Defense: Najdorf Variation (B98)
• Sicilian Defense: Alapin Variation (B22)
• Sicilian Defense: Taimanov Variation (B46)
• Sicilian Defense: Dragon Variation (B72)
• Sicilian Defense: Grand Prix Attack (B23)
• Sicilian Defense: Moscow Variation (B51)
• Sicilian Defense: Smith-Morra Gambit (B21)
• Sicilian Defense: Accelerated Dragon (B32)
• Sicilian Defense: Kan Variation (B41)
• Sicilian Defense: Scheveningen Variation (B80)
• Sicilian Defense: Classical Variation (B58)
• Sicilian Defense: Closed (B26)

Slav Defense

• Slav Defense (D10)
• Slav Defense: Exchange Variation (D13)

Alekhine Defense

• Alekhine Defense: Modern Variation (B04)
• Alekhine Defense (B03)
• Alekhine Defense: Exchange Variation (B03)
• Alekhine Defense: Four Pawns Attack (B03)
• Alekhine Defense: Krejcik Variation (B02)
• Alekhine Defense: Maróczy Variation (B02)
• Alekhine Defense: Brooklyn Variation (B02)
• Alekhine Defense: Mokele Mbembe (B02)
• Alekhine Defense: Normal Variation (B02)
• Alekhine Defense: Scandinavian Variation (B02)
• Alekhine Defense: Buckley Attack (B02)

Benko Gambit

• Benko Gambit (A59)
• Benko Gambit: Mutkin Countergambit (A57)
• Benko Gambit: Zaitsev System (A57)
• Benko Gambit: Zaitsev Variation, Nescafe Frappe Attack (A57)
• Benko Gambit: Fianchetto Variation (A58)
• Benko Gambit: Nd2 Variation (A58)
• Benko Gambit: Nescafe Frappe Attack (A57)

Benko Gambit Accepted

• Benko Gambit Accepted (A57)
• Benko Gambit Accepted: Dlugy Variation (A57)
• Benko Gambit Accepted: Fully Accepted Variation (A58)
• Benko Gambit Accepted: Modern Variation (A57)
• Benko Gambit Accepted: Pawn Return Variation (A57)
• Benko Gambit Accepted: Central Storming Variation (A58)
• Benko Gambit Accepted: Fianchetto Variation (A58)
• Benko Gambit Accepted: Yugoslav (A59)
• Benko Gambit Accepted: King Walk Variation (A59)

Benoni Defense

• Benoni Defense: Classical Variation (A72)
• Benoni Defense: Modern Variation (A60)
• Benoni Defense (A61)
• Benoni Defense: Benoni Gambit Accepted (A43)
• Benoni Defense: Benoni Gambit, Schlenker Defense (A43)
• Benoni Defense: Benoni-Indian Defense (A43)
• Benoni Defense: Cormorant Gambit (A43)
• Benoni Defense: Old Benoni (A44)
• Benoni Defense: Old Benoni, Mujannah Formation (A43)
• Benoni Defense: Snail Variation (A43)
• Benoni Defense: Benoni-Indian Defense, Kingside Move Order (A43)

Catalan Opening

• Catalan Opening (E00)
• Catalan Opening: Open Defense (E04)
• Catalan Opening: Hungarian Gambit (E00)
• Catalan Opening: Open Defense, Classical Line (E05)
• Catalan Opening: Open Defense, Modern Sharp Variation (E04)
• Catalan Opening: Open Defense, Alekhine Variation (E03)
• Catalan Opening: Closed, Botvinnik Variation (E07)
• Catalan Opening: Closed Variation, Rabinovich Variation (E09)
• Catalan Opening: Closed Variation, Traditional Variation (E09)
• Catalan Opening: Closed, Zagoryansky Variation (E08)
• Catalan Opening: Closed (E08)

English Opening

• English Opening (A10)
• English Opening: Symmetrical Variation (A35)

Grünfeld Defense

• Grünfeld Defense (D80)
• Grünfeld Defense: Exchange Variation (D85)
• Grünfeld Defense: Russian Variation (D97)

King's Indian Attack

• King's Indian Attack (A07)

Petrov's Defense

• Petrov's Defense (C42)
• Petrov's Defense: Classical Attack (C42)

Pirc Defense

• Pirc Defense: Austrian Attack (B09)
• Pirc Defense (B07)
• Pirc Defense: Classical Variation (B08)

Queen's Gambit Accepted

• Queen's Gambit Accepted (D24)

Queen's Indian Defense

• Queen's Indian Defense (E12)

Réti Opening

• Réti Opening (A09)

Scandinavian Defense

• Scandinavian Defense (B01)
• Scandinavian Defense: Modern Variation (B01)
• Scandinavian Defense: Main Line (B01)

Scotch Game

• Scotch Game: Scotch Gambit (C44)
• Scotch Game (C45)

Semi-Slav Defense

• Semi-Slav Defense (D43)
• Semi-Slav Defense: Meran Variation (D48)

Bogo-Indian Defense

• Bogo-Indian Defense (E11)
• Bogo-Indian Defense: Grünfeld Variation (E11)
• Bogo-Indian Defense: New England Variation (E11)
• Bogo-Indian Defense: Exchange Variation (E11)
• Bogo-Indian Defense: Haiti Variation (E11)
• Bogo-Indian Defense: Nimzowitsch Variation (E11)
• Bogo-Indian Defense: Vitolins Variation (E11)
• Bogo-Indian Defense: Wade-Smyslov Variation (E11)
• Bogo-Indian Defense: Monticelli Trap (E11)
• Bogo-Indian Defense: Retreat Variation (E11)

Dutch Defense

• Dutch Defense (A84)
• Dutch Defense: Leningrad Variation (A87)
• Dutch Defense: Classical Variation (A96)
• Dutch Defense: Stonewall Variation (A95)
• Dutch Defense: Alapin Variation (A80)
• Dutch Defense: Fianchetto Attack (A81)
• Dutch Defense: Hopton Attack (A80)
• Dutch Defense: Korchnoi Attack (A80)
• Dutch Defense: Krejcik Gambit (A80)
• Dutch Defense: Hevendehl Gambit (A80)

Four Knights Game

• Four Knights Game (C47)

King's Gambit

• King's Gambit (C30)

King's Gambit Accepted

• King's Gambit Accepted (C33)

Philidor Defense

• Philidor Defense (C41)

Trompowsky Attack

• Trompowsky Attack (A45)

Vienna Game

• Vienna Game (C25)

Bird Opening

• Bird Opening (A02)
• Bird Opening: Dutch Variation (A03)
• Bird Opening: From's Gambit (A02)
• Bird Opening: Hobbs Gambit (A02)
• Bird Opening: Horsefly Defense (A02)
• Bird Opening: Myers Defense (A02)
• Bird Opening: Dutch Variation, Dudweiler Gambit (A03)
• Bird Opening: From's Gambit, Bahr Gambit (A02)
• Bird Opening: Mujannah (A02)
• Bird Opening: Sturm Gambit (A03)
• Bird Opening: Wagner-Zwitersch Gambit (A02)

Modern Defense

• Modern Defense (B06)

Amar Opening

• Amar Opening: Paris Gambit (A00)
• Amar Opening: Paris Gambit, Gent Gambit (A00)

Amazon Attack

• Amazon Attack: Siberian Attack (A45)

Anderssen's Opening

• Anderssen's Opening: Polish Gambit (A00)

Barnes Opening

• Barnes Opening: Hammerschlag (A00)
• Barnes Opening: Fool's Mate (A00)
• Barnes Opening: Gedult Gambit (A00)
• Barnes Opening: Walkerling (C20)

Benko Gambit Declined

• Benko Gambit Declined: Bishop Attack (A57)
• Benko Gambit Declined: Hjørring Countergambit (A57)
• Benko Gambit Declined: Main Line (A57)
• Benko Gambit Declined: Pseudo-Sämisch (A57)
• Benko Gambit Declined: Quiet Line (A57)
• Benko Gambit Declined: Sosonko Variation (A57)

Bishop's Opening

• Bishop's Opening: Berlin Defense (C24)
• Bishop's Opening: Boi Variation (C23)
• Bishop's Opening: Calabrese Countergambit (C23)
• Bishop's Opening: Khan Gambit (C23)
• Bishop's Opening: Philidor Counterattack (C23)
• Bishop's Opening: Berlin Defense, Greco Gambit (C24)
• Bishop's Opening: Calabrese Countergambit, Jaenisch Variation (C23)
• Bishop's Opening: Lewis Gambit (C23)
• Bishop's Opening: Lopez Variation (C23)
• Bishop's Opening: McDonnell Gambit (C23)

Blackmar-Diemer Gambit

• Blackmar-Diemer Gambit: Blackmar Gambit (D00)
• Blackmar-Diemer Gambit: Diemer-Rosenberg Attack (D00)
• Blackmar-Diemer Gambit: Fritz Attack (D00)
• Blackmar-Diemer Gambit: Lemberger Countergambit (D00)
• Blackmar-Diemer Gambit: Netherlands Variation (D00)
• Blackmar-Diemer Gambit: Reversed Albin Countergambit (D00)
• Blackmar-Diemer Gambit: Zeller Defense (D00)
• Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation (D00)
• Blackmar-Diemer Gambit: Lemberger Countergambit, Lange Gambit (D00)
• Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack (D00)

Blackmar-Diemer Gambit Accepted

• Blackmar-Diemer Gambit Accepted: Ryder Gambit (D00)
• Blackmar-Diemer Gambit Accepted: Bogoljubow Defense (D00)
• Blackmar-Diemer Gambit Accepted: Euwe Defense (D00)
• Blackmar-Diemer Gambit Accepted: Gunderam Defense (D00)
• Blackmar-Diemer Gambit Accepted: Holwell Defense (D00)
• Blackmar-Diemer Gambit Accepted: Kaulich Defense (D00)
• Blackmar-Diemer Gambit Accepted: Pietrowsky Defense (D00)
• Blackmar-Diemer Gambit Accepted: Ritter Defense (D00)
• Blackmar-Diemer Gambit Accepted: Schlutter Defense (D00)
• Blackmar-Diemer Gambit Accepted: Teichmann Defense (D00)

Blackmar-Diemer Gambit Declined

• Blackmar-Diemer Gambit Declined: Brombacher Countergambit (D00)
• Blackmar-Diemer Gambit Declined: Elbert Countergambit (D00)
• Blackmar-Diemer Gambit Declined: Gedult Defense (D00)
• Blackmar-Diemer Gambit Declined: Lamb Defense (D00)
• Blackmar-Diemer Gambit Declined: Langeheinicke Defense (D00)
• Blackmar-Diemer Gambit Declined: O'Kelly Defense (D00)
• Blackmar-Diemer Gambit Declined: Vienna Defense (D00)
• Blackmar-Diemer Gambit Declined: Weinsbach Defense (D00)

Blumenfeld Countergambit

• Blumenfeld Countergambit: Duz-Khotimirsky Variation (E10)
• Blumenfeld Countergambit: Spielmann Variation (E10)

Borg Defense

• Borg Defense: Borg Gambit (B00)
• Borg Defense: Zilbermints Gambit (B00)
• Borg Defense: Troon Gambit (B00)

Carr Defense

• Carr Defense: Zilbermints Gambit (B00)

Center Game

• Center Game: Halasz-McDonnell Gambit (C21)
• Center Game: Ross Gambit (C21)
• Center Game: von der Lasa Gambit (C21)
• Center Game: Normal Variation (C22)
• Center Game: Hall Variation (C22)
• Center Game: Kieseritzky Variation (C21)
• Center Game: Lanc-Arnold Gambit (C21)
• Center Game: Paulsen Attack Variation (C22)
• Center Game: Berger Variation (C22)
• Center Game: l'Hermet Variation (C22)

Clemenz Opening

• Clemenz Opening: Spike Lee Gambit (A00)

Colle System

• Colle System: Pterodactyl Variation (A40)
• Colle System: Rhamphorhynchus Variation (A04)
• Colle System: Siroccopteryx Variation (A40)

Creepy Crawly Formation

• Creepy Crawly Formation: Classical Defense (A00)

Danish Gambit Accepted

• Danish Gambit Accepted: Svenonius Defense (C21)
• Danish Gambit Accepted: Chigorin Defense (C21)
• Danish Gambit Accepted: Classical Defense (C21)
• Danish Gambit Accepted: Copenhagen Defense (C21)
• Danish Gambit Accepted: Schlechter Defense (C21)

Danish Gambit Declined

• Danish Gambit Declined: Sörensen Defense (C21)

Dresden Opening

• Dresden Opening: The Goblin (C44)