♞ 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
Sodium Attack: Durkin GambitA006
Valencia OpeningA003
Van Geet OpeningA001
Van Geet Opening: Battambang VariationA003
Van Geet Opening: Billockus-Johansen GambitA004
Van Geet Opening: Damhaug GambitA004
Van Geet Opening: Dougherty GambitA005
Van Geet Opening: Dunst-Perrenet GambitA005
Van Geet Opening: Düsseldorf GambitA003
Van Geet Opening: Gladbacher GambitA007
Van Geet Opening: Hector GambitA005
Van Geet Opening: Hergert GambitA006
Van Geet Opening: Hulsemann GambitA006
Van Geet Opening: Jendrossek GambitA0011
Van Geet Opening: Kluever GambitA005
Van Geet Opening: Laroche GambitA002
Van Geet Opening: Liebig GambitA006
Van Geet Opening: Melleby GambitA006
Van Geet Opening: Myers AttackA003
Van Geet Opening: Napoleon AttackA005
Van Geet Opening: Novosibirsk VariationA007
Van Geet Opening: Nowokunski GambitA005
Van Geet Opening: Pfeiffer GambitA006
Van Geet Opening: Pfeiffer Gambit, Sleipnir CountergambitA007
Van Geet Opening: Reversed NimzowitschA002
Van Geet Opening: Reversed ScandinavianA007
Van Geet Opening: Sicilian Two KnightsA007
Van Geet Opening: Sleipnir GambitA006
Van Geet Opening: Twyble AttackA003
Van Geet Opening: Tübingen GambitA003
Van Geet Opening: Venezolana VariationA005
Van Geet Opening: Warsteiner GambitA004
Van't Kruijs OpeningA001
Van't Kruijs Opening: Bouncing Bishop VariationA005
Van't Kruijs Opening: Keoni-Hiva Gambit, Akahi VariationA007
Van't Kruijs Opening: Keoni-Hiva Gambit, Alua VariationA007
Van't Kruijs Opening: Keoni-Hiva Gambit, Ekolu VariationA007
Ware OpeningA001
Ware Opening: Cologne GambitA006
Ware Opening: Crab VariationA003
Ware Opening: Meadow Hay TrapA003
Ware Opening: Symmetric VariationA002
Ware Opening: Ware GambitA007
Ware Opening: Wing GambitA004
Nimzo-Larsen AttackA011
Nimzo-Larsen Attack: Classical VariationA012
Nimzo-Larsen Attack: Dutch VariationA012
Nimzo-Larsen Attack: English VariationA012
Nimzo-Larsen Attack: Graz AttackA013
Nimzo-Larsen Attack: Indian VariationA012
Nimzo-Larsen Attack: Modern VariationA012
Nimzo-Larsen Attack: Modern VariationA014
Nimzo-Larsen Attack: Modern VariationA015
Nimzo-Larsen Attack: Modern VariationA016
Nimzo-Larsen Attack: Pachman GambitA015
Nimzo-Larsen Attack: Polish VariationA012
Nimzo-Larsen Attack: Ringelbach GambitA015
Nimzo-Larsen Attack: Spike VariationA015
Nimzo-Larsen Attack: Symmetrical VariationA012
Bird OpeningA021
Bird Opening: Batavo-Polish AttackA025
Bird Opening: Double Duck FormationA024
Bird Opening: From's GambitA022
Bird Opening: From's Gambit, Bahr GambitA023
Bird Opening: From's Gambit, Langheld GambitA026
Bird Opening: From's Gambit, Lasker VariationA028
Bird Opening: From's Gambit, Lipke VariationA029
Bird Opening: Hobbs GambitA022
Bird Opening: Hobbs-Zilbermints GambitA024
Bird Opening: Horsefly DefenseA022
Bird Opening: Lasker GambitA024
Bird Opening: MujannahA023
Bird Opening: Myers DefenseA022
Bird Opening: Platz GambitA024
Bird Opening: Schlechter GambitA024
Bird Opening: Siegener GambitA027
Bird Opening: Swiss GambitA027
Bird Opening: Wagner-Zwitersch GambitA023
Bird Opening: Dutch VariationA032
Bird Opening: Dutch Variation, Dudweiler GambitA033
Bird Opening: Lasker VariationA036
Bird Opening: Sturm GambitA033
Bird Opening: Thomas GambitA039
Bird Opening: Williams GambitA033
Bird Opening: Williams GambitA037
Bird Opening: Williams-Zilbermints GambitA037
Colle System: Rhamphorhynchus VariationA048
Modern Defense: Semi-Averbakh Variation, Polish VariationA048
Modern Defense: Semi-Averbakh Variation, Pterodactyl VariationA048
Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation AcceptedA0410
Zukertort Defense: Kingside VariationA044
Zukertort Defense: Sicilian Knight VariationA044
Zukertort OpeningA041
Zukertort Opening: Arctic DefenseA042
Zukertort Opening: Arctic Defense, Drunken Knight VariationA046
Zukertort Opening: Basman DefenseA042
Zukertort Opening: Black Mustang DefenseA042
Zukertort Opening: Drunken Cavalry VariationA044
Zukertort Opening: Dutch VariationA042
Zukertort Opening: Herrstrom GambitA042

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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