♞ Chess1

Chess Openings

3810 ECO lines with main-line moves and diagrams. Start with the flagship families, or browse by volume.

Flagship openings

Sicilian Defense B20
2 plies in the main line
French Defense C00
2 plies in the main line
English Opening A10
1 plies in the main line
Caro-Kann Defense B10
2 plies in the main line
Queen's Pawn Game A40
1 plies in the main line
Queen's Pawn Game A41
2 plies in the main line
Queen's Pawn Game D00
2 plies in the main line
Dutch Defense A80
2 plies in the main line
Alekhine Defense B02
2 plies in the main line
Indian Defense A45
2 plies in the main line
Zukertort Opening A04
1 plies in the main line
Zukertort Opening A05
2 plies in the main line
Zukertort Opening A06
2 plies in the main line
Scandinavian Defense B01
2 plies in the main line
Réti Opening A09
3 plies in the main line
Nimzowitsch Defense B00
2 plies in the main line
Modern Defense B06
2 plies in the main line
King's Pawn Game B00
1 plies in the main line
King's Pawn Game C20
2 plies in the main line
Van Geet Opening A00
1 plies in the main line
Bird Opening A02
1 plies in the main line
Pirc Defense B00
2 plies in the main line
Polish Opening A00
1 plies in the main line
King's Indian Attack A07
3 plies in the main line

All lines by ECO volume

A — Flank openings (817)B — Semi-open games (772)C — Open games & French (1250)D — Closed & semi-closed (614)E — Indian defenses (357)

A — Flank openings

NameECOMoves
Amar OpeningA001
Amar Opening: Paris GambitA005
Amar Opening: Paris Gambit, Gent GambitA0011
Amsterdam AttackA008
Anderssen's OpeningA001
Anderssen's Opening: Polish GambitA003
Barnes OpeningA001
Barnes Opening: Fool's MateA004
Barnes Opening: Gedult GambitA007
Barnes Opening: Gedult GambitA005
Barnes Opening: HammerschlagA003
Clemenz OpeningA001
Clemenz Opening: Spike Lee GambitA003
Creepy Crawly Formation: Classical DefenseA004
Formation: Hippopotamus AttackA0013
Formation: Shy AttackA0013
Global OpeningA003
Grob OpeningA001
Grob Opening: Alessi GambitA002
Grob Opening: Double GrobA002
Grob Opening: Double Grob, Coca-Cola GambitA003
Grob Opening: Grob GambitA003
Grob Opening: Grob Gambit DeclinedA004
Grob Opening: Grob Gambit, Basman GambitA005
Grob Opening: Grob Gambit, Fritz GambitA005
Grob Opening: Grob Gambit, Fritz Gambit, Romford CountergambitA0010
Grob Opening: Grob Gambit, Keres GambitA007
Grob Opening: Grob Gambit, Richter-Grob GambitA007
Grob Opening: Keene DefenseA006
Grob Opening: Keene Defense, Main LineA0012
Grob Opening: London DefenseA004
Grob Opening: Romford CountergambitA006
Grob Opening: Spike AttackA005
Grob Opening: Spike, Hurst AttackA005
Grob Opening: Zilbermints GambitA005
Grob Opening: Zilbermints Gambit, Schiller DefenseA006
Grob Opening: Zilbermints Gambit, Zilbermints-Hartlaub GambitA007
Hungarian OpeningA001
Hungarian Opening: Asten GambitA0010
Hungarian Opening: Burk GambitA009
Hungarian Opening: Bücker GambitA005
Hungarian Opening: Catalan FormationA004
Hungarian Opening: Dutch DefenseA002
Hungarian Opening: Indian DefenseA002
Hungarian Opening: Myers DefenseA002
Hungarian Opening: Pachman GambitA006
Hungarian Opening: Paris GambitA009
Hungarian Opening: Reversed AlekhineA003
Hungarian Opening: Reversed Brooklyn Defense, Brooklyn Benko GambitA007
Hungarian Opening: Reversed Modern DefenseA004
Hungarian Opening: Reversed Norwegian DefenseA005
Hungarian Opening: Sicilian InvitationA002
Hungarian Opening: Slav FormationA004
Hungarian Opening: Symmetrical VariationA002
Hungarian Opening: Van Kuijk GambitA004
Hungarian Opening: Winterberg GambitA007
Kádas OpeningA001
Kádas Opening: Beginner's TrapA003
Kádas Opening: Koola-Koola VariationA002
Kádas Opening: Kádas GambitA003
Kádas Opening: Kádas GambitA007
Kádas Opening: Kádas GambitA005
Kádas Opening: Myers VariationA005
Kádas Opening: Schneider GambitA002
Kádas Opening: Steinbok GambitA005
Lasker Simul SpecialA002
Mieses OpeningA001
Mieses Opening: Myers Spike AttackA003
Mieses Opening: Reversed RatA002
Mieses Opening: Venezolana VariationA005
Polish OpeningA001
Polish Opening, with d5A002
Polish Opening, with d5A005
Polish Opening: Baltic DefenseA004
Polish Opening: Birmingham GambitA002
Polish Opening: Bugayev Advance VariationA005
Polish Opening: Bugayev AttackA003
Polish Opening: Czech DefenseA004
Polish Opening: Dutch DefenseA002
Polish Opening: German DefenseA004
Polish Opening: Grigorian VariationA002
Polish Opening: Karniewski VariationA002
Polish Opening: King's Indian VariationA004
Polish Opening: King's Indian Variation, Schiffler AttackA005
Polish Opening: King's Indian Variation, Sokolsky AttackA0011
Polish Opening: Myers VariationA005
Polish Opening: Outflank VariationA002
Polish Opening: Outflank Variation, Schuehler GambitA005
Polish Opening: Queen's Indian VariationA006
Polish Opening: Queenside DefenseA006
Polish Opening: Rooks Swap LineA0011
Polish Opening: Schiffler-Sokolsky VariationA007
Polish Opening: Schuehler GambitA007
Polish Opening: Symmetrical VariationA002
Polish Opening: Tartakower GambitA005
Polish Opening: Wolferts GambitA004
Saragossa OpeningA001
Sodium AttackA001
Sodium Attack: Celadon VariationA009
Sodium Attack: Chenoboskion VariationA003

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Family pages group related lines: the family head with a diagram, main continuations and every catalogued variation.

Volume A Volume B Volume C Volume D Volume E Gambits Defenses