♞ 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)

E — Indian defenses

NameECOMoves
King's Indian Defense: Four Pawns Attack, Normal AttackE7715
King's Indian Defense: Six Pawns AttackE7719
King's Indian Defense: Four Pawns Attack, Fluid AttackE7813
King's Indian Defense: Four Pawns Attack, Exchange VariationE7917
King's Indian Defense: Sämisch VariationE809
King's Indian Defense: Steiner AttackE8111
King's Indian Defense: Steiner AttackE8115
King's Indian Defense: Steiner AttackE8117
King's Indian Defense: Steiner AttackE8117
King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian VariationE8111
King's Indian Defense: Sämisch Variation, Byrne DefenseE8114
King's Indian Defense: Sämisch Variation, Normal DefenseE8110
King's Indian Defense: Sämisch Variation, Sämisch GambitE8112
King's Indian Defense: Sämisch Variation, Sämisch Gambit AcceptedE8117
King's Indian Defense: Sämisch Variation, Double FianchettoE8212
King's Indian Defense: Sämisch Variation, Panno FormationE8314
King's Indian Defense: Sämisch Variation, Ruban VariationE8314
King's Indian Defense: Sämisch Variation, Yates DefenseE8312
King's Indian Defense: Sämisch Variation, Panno Main LineE8416
King's Indian Defense: Sämisch Variation, Orthodox VariationE8512
King's Indian Defense: Sämisch VariationE8614
King's Indian Defense: Sämisch Variation, Bronstein DefenseE8723
King's Indian Defense: Sämisch Variation, Closed VariationE8713
King's Indian Defense: Sämisch Variation, Orthodox Variation, Bronstein VariationE8724
King's Indian Defense: Sämisch Variation, Closed VariationE8814
King's Indian Defense: Sämisch Variation, Closed Variation, Main LineE8916
King's Indian Defense: Larsen VariationE9011
King's Indian Defense: Normal Variation, Rare DefensesE909
King's Indian Defense: Zinnowitz VariationE9011
King's Indian Defense: Kazakh VariationE9112
King's Indian Defense: Orthodox VariationE9111
King's Indian Defense: Exchange VariationE9213
King's Indian Defense: Orthodox VariationE9212
King's Indian Defense: Orthodox Variation, Gligoric-Taimanov SystemE9213
King's Indian Defense: Petrosian VariationE9213
King's Indian Defense: Petrosian Variation, Stein DefenseE9214
King's Indian Defense: Petrosian Variation, Keres DefenseE9321
King's Indian Defense: Petrosian Variation, Normal DefenseE9314
King's Indian Defense: Orthodox VariationE9413
King's Indian Defense: Orthodox Variation, Donner DefenseE9414
King's Indian Defense: Orthodox Variation, Glek DefenseE9414
King's Indian Defense: Orthodox Variation, Positional DefenseE9414
King's Indian Defense: Orthodox Variation, Positional Defense, Closed LineE9415
King's Indian Defense: Orthodox Variation, Ukrainian DefenseE9414
King's Indian Defense: Orthodox VariationE9515
King's Indian Defense: Orthodox Variation, Positional Defense, Main LineE9618
King's Indian Defense: Orthodox Variation, Aronin-Taimanov DefenseE9714
King's Indian Defense: Orthodox Variation, Bayonet AttackE9717
King's Indian Defense: Orthodox Variation, Bayonet Attack, Sokolov's LineE9719
King's Indian Defense: Orthodox Variation, Bayonet Attack, Yepishin's LineE9719
King's Indian Defense: Orthodox Variation, Korchnoi AttackE9717
King's Indian Defense: Orthodox Variation, Modern SystemE9717
King's Indian Defense: Orthodox Variation, Classical SystemE9817
King's Indian Defense: Orthodox Variation, Classical System, Kozul GambitE9827
King's Indian Defense: Orthodox Variation, Classical System, Neo-Classical LineE9819
King's Indian Defense: Orthodox Variation, Classical System, Benko AttackE9921
King's Indian Defense: Orthodox Variation, Classical System, Traditional LineE9920

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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