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)

C — Open games & French

NameECOMoves
Italian Game: Bird's AttackC539
Italian Game: Classical VariationC537
Italian Game: Classical Variation, Center Holding VariationC5310
Italian Game: Classical Variation, Closed VariationC538
Italian Game: Classical Variation, Eisinger VariationC5313
Italian Game: Classical Variation, La Bourdonnais VariationC5312
Italian Game: Classical Variation, Mestel VariationC5311
Italian Game: Classical Variation, Tarrasch VariationC5317
Italian Game: Classical VariationC548
Italian Game: Classical Variation, Center AttackC549
Italian Game: Classical Variation, Ghulam-Kassim VariationC5417
Italian Game: Classical Variation, Giuoco PianissimoC549
Italian Game: Classical Variation, Giuoco PianissimoC5410
Italian Game: Classical Variation, Giuoco PianissimoC5413
Italian Game: Classical Variation, Giuoco PianissimoC5411
Italian Game: Classical Variation, Giuoco PianissimoC5411
Italian Game: Classical Variation, Giuoco PianissimoC5412
Italian Game: Classical Variation, Giuoco PianissimoC5412
Italian Game: Classical Variation, Giuoco PianissimoC5412
Italian Game: Classical Variation, Giuoco PianissimoC5412
Italian Game: Classical Variation, Giuoco PianissimoC5413
Italian Game: Classical Variation, Giuoco PianissimoC5414
Italian Game: Classical Variation, Giuoco PianissimoC5414
Italian Game: Classical Variation, Giuoco PianissimoC5413
Italian Game: Classical Variation, Giuoco PianissimoC5414
Italian Game: Classical Variation, Giuoco PianissimoC5413
Italian Game: Classical Variation, Giuoco PianissimoC5413
Italian Game: Classical Variation, Giuoco PianissimoC5412
Italian Game: Classical Variation, Giuoco Pianissimo, Albin VariationC5411
Italian Game: Classical Variation, Giuoco Pianissimo, Main LineC5417
Italian Game: Classical Variation, Giuoco Pianissimo, with a4 a5C5414
Italian Game: Classical Variation, Giuoco Pianissimo, with a5C5411
Italian Game: Classical Variation, Giuoco Pianissimo, with a6C5410
Italian Game: Classical Variation, Giuoco Pianissimo, with a6C5412
Italian Game: Classical Variation, Giuoco Pianissimo, with h6C5412
Italian Game: Classical Variation, Greco Gambit, Anderssen VariationC5416
Italian Game: Classical Variation, Greco Gambit, Dubov ItalianC5411
Italian Game: Classical Variation, Greco Gambit, Greco VariationC5416
Italian Game: Classical Variation, Greco Gambit, Main LineC5416
Italian Game: Classical Variation, Greco Gambit, Modern LineC5411
Italian Game: Classical Variation, Greco Gambit, Modern LineC5412
Italian Game: Classical Variation, Greco Gambit, Moeller-Bayonet AttackC5423
Italian Game: Classical Variation, Greco Gambit, Moeller-Therkatz AttackC5417
Italian Game: Classical Variation, Greco Gambit, Traditional LineC5411
Italian Game: Classical Variation, with d5C5410
Italian Game: Giuoco Piano, Aitken VariationC5419
Italian Game: Giuoco Piano, Bernstein VariationC5420
Italian Game: Giuoco Piano, Cracow VariationC5413
Italian Game: Giuoco Piano, Greco's AttackC5413
Italian Game: Giuoco Piano, Holzhausen AttackC5419
Italian Game: Giuoco Piano, Krause VariationC5423
Italian Game: Giuoco Piano, Rosentreter VariationC5417
Italian Game: Giuoco Piano, Steinitz VariationC5419
Italian Game: Giuoco Piano, Therkatz-Herzog VariationC5427
Italian Game: Two Knights DefenseC556
Italian Game: Two Knights DefenseC5514
Italian Game: Two Knights DefenseC5510
Italian Game: Two Knights Defense, Modern Bishop's OpeningC557
Italian Game: Two Knights Defense, Modern Bishop's OpeningC558
Italian Game: Two Knights Defense, Modern Bishop's OpeningC5510
Italian Game: Scotch GambitC569
Italian Game: Scotch Gambit, Anderssen AttackC5615
Italian Game: Scotch Gambit, Anderssen Attack, Main LineC5621
Italian Game: Scotch Gambit, Canal VariationC5613
Italian Game: Scotch Gambit, Double Gambit AcceptedC5610
Italian Game: Scotch Gambit, Janowski DefenseC5610
Italian Game: Scotch Gambit, Max Lange AttackC5610
Italian Game: Scotch Gambit, Max Lange AttackC5612
Italian Game: Scotch Gambit, Max Lange Attack AcceptedC5617
Italian Game: Scotch Gambit, Max Lange Attack, Long VariationC5621
Italian Game: Scotch Gambit, Max Lange Attack, Spielmann DefenseC5612
Italian Game: Scotch Gambit, Nakhmanson GambitC5611
Italian Game: Scotch Gambit, Walbrodt-Baird GambitC5611
Italian Game: Scotch Gambit, de Riviere DefenseC5610
Italian Game: Scotch Invitation DeclinedC568
Italian Game: Two Knights Defense, Keidansky VariationC5618
Italian Game: Two Knights Defense, Max Lange AttackC5611
Italian Game: Two Knights Defense, Max Lange Attack, Berger VariationC5626
Italian Game: Two Knights Defense, Max Lange Attack, Krause VariationC5613
Italian Game: Two Knights Defense, Max Lange Attack, Loman DefenseC5618
Italian Game: Two Knights Defense, Max Lange Attack, Rubinstein VariationC5622
Italian Game: Two Knights Defense, Open VariationC567
Italian Game: Two Knights Defense, Perreux VariationC569
Italian Game: Two Knights Defense, Yurdansky AttackC5625
Italian Game: Two Knights Defense, Fegatello Attack, Leonhardt VariationC5722
Italian Game: Two Knights Defense, Fried Liver AttackC5711
Italian Game: Two Knights Defense, Fritz VariationC5710
Italian Game: Two Knights Defense, Fritz, Gruber VariationC5715
Italian Game: Two Knights Defense, Kloss GambitC5710
Italian Game: Two Knights Defense, Knight AttackC577
Italian Game: Two Knights Defense, Knight Attack, Normal VariationC578
Italian Game: Two Knights Defense, Lolli AttackC5711
Italian Game: Two Knights Defense, Pincus VariationC5712
Italian Game: Two Knights Defense, Ponziani-Steinitz GambitC578
Italian Game: Two Knights Defense, Traxler CounterattackC578
Italian Game: Two Knights Defense, Traxler Counterattack, Bishop Sacrifice LineC579
Italian Game: Two Knights Defense, Traxler Counterattack, King March LineC5713
Italian Game: Two Knights Defense, Traxler Counterattack, Knight Sacrifice LineC579
Italian Game: Two Knights Defense, Traxler Variation, Trencianske-Teplice GambitC5711
Italian Game: Two Knights Defense, Ulvestad VariationC5710

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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