♞ 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)

C — Open games & French

NameECOMoves
King's Gambit Accepted: Middleton CountergambitC3714
King's Gambit Accepted: Muzio Gambit Accepted, From's DefenseC3712
King's Gambit Accepted: Muzio Gambit, Brentano DefenseC3710
King's Gambit Accepted: Muzio Gambit, Holloway DefenseC3712
King's Gambit Accepted: Muzio Gambit, Kling and Horwitz CounterattackC3710
King's Gambit Accepted: Muzio Gambit, Sarratt DefenseC3712
King's Gambit Accepted: Muzio Gambit, Wild Muzio GambitC379
King's Gambit Accepted: Quaade GambitC377
King's Gambit Accepted: Rosentreter GambitC377
King's Gambit Accepted: Rosentreter Gambit, Bird GambitC3711
King's Gambit Accepted: Rosentreter Gambit, Sörensen GambitC379
King's Gambit Accepted: Rosentreter Gambit, Testa VariationC379
King's Gambit Accepted: Salvio GambitC379
King's Gambit Accepted: Salvio Gambit, Anderssen CounterattackC3714
King's Gambit Accepted: Salvio Gambit, Cochrane GambitC3712
King's Gambit Accepted: Salvio Gambit, Santa Maria DefenseC3712
King's Gambit Accepted: Salvio Gambit, Silberschmidt DefenseC3712
King's Gambit Accepted: Salvio Gambit, Viennese VariationC3712
King's Gambit Accepted: Silberschmidt GambitC3714
King's Gambit Accepted: Sörensen GambitC379
King's Gambit Accepted: Greco GambitC3819
King's Gambit Accepted: Hanstein GambitC389
King's Gambit Accepted: Mayet GambitC3811
King's Gambit Accepted: Philidor GambitC389
King's Gambit Accepted: Philidor Gambit, Schultz VariationC3813
King's Gambit Accepted: Traditional VariationC388
King's Gambit Accepted: Allgaier GambitC399
King's Gambit Accepted: Allgaier Gambit, Thorold AttackC3913
King's Gambit Accepted: Allgaier Gambit, Urusov AttackC3913
King's Gambit Accepted: Allgaier, Blackburne GambitC3913
King's Gambit Accepted: Allgaier, Cook VariationC3919
King's Gambit Accepted: Allgaier, Horny DefenseC3916
King's Gambit Accepted: Allgaier, Schlechter DefenseC3910
King's Gambit Accepted: Allgaier, Urusov AttackC3917
King's Gambit Accepted: Kieseritzky GambitC399
King's Gambit Accepted: Kieseritzky Gambit, Anderssen DefenseC3914
King's Gambit Accepted: Kieseritzky Gambit, Anderssen-Cordel GambitC3918
King's Gambit Accepted: Kieseritzky Gambit, Berlin DefenseC3910
King's Gambit Accepted: Kieseritzky Gambit, Berlin Defense, Rubinstein VariationC3911
King's Gambit Accepted: Kieseritzky Gambit, Berlin Defense, de Riviere VariationC3912
King's Gambit Accepted: Kieseritzky Gambit, Brentano DefenseC3910
King's Gambit Accepted: Kieseritzky Gambit, Brentano DefenseC3913
King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense, Caro VariationC3915
King's Gambit Accepted: Kieseritzky Gambit, Cotter GambitC3911
King's Gambit Accepted: Kieseritzky Gambit, Kolisch DefenseC3910
King's Gambit Accepted: Kieseritzky Gambit, Long WhipC3910
King's Gambit Accepted: Kieseritzky Gambit, Neumann DefenseC3910
King's Gambit Accepted: Kieseritzky Gambit, Paulsen DefenseC3910
King's Gambit Accepted: Kieseritzky Gambit, Paulsen Defense DeferredC3914
King's Gambit Accepted: Kieseritzky Gambit, Rice GambitC3916
King's Gambit Accepted: Kieseritzky Gambit, Rosenthal DefenseC3910
King's Gambit Accepted: Kieseritzky, Long Whip Defense, Jaenisch VariationC3915
King's Gambit Accepted: Kieseritzky, Polerio DefenseC3910
King's Gambit Accepted: Kieseritzky, Rice GambitC3915
King's Gambit Accepted: Kieseritzky, Salvio Defense, Cozio VariationC3913
King's Gambit Accepted: King's Knight's GambitC397
Elephant GambitC404
Elephant Gambit: Maróczy GambitC406
Elephant Gambit: Paulsen CountergambitC406
Elephant Gambit: Wasp VariationC408
Gunderam DefenseC404
King's Knight OpeningC403
King's Pawn Game: Busch-Gass GambitC404
King's Pawn Game: Busch-Gass Gambit, Chiodini GambitC406
King's Pawn Game: Damiano DefenseC404
King's Pawn Game: Damiano Defense, Damiano GambitC4011
King's Pawn Game: Damiano Defense, Damiano Gambit, Chigorin GambitC408
King's Pawn Game: Gunderam Defense, Gunderam GambitC406
King's Pawn Game: Gunderam GambitC404
King's Pawn Game: La Bourdonnais GambitC407
King's Pawn Game: McConnell DefenseC404
Latvian GambitC404
Latvian Gambit AcceptedC405
Latvian Gambit Accepted: Bilguer VariationC409
Latvian Gambit Accepted: Bronstein AttackC4011
Latvian Gambit Accepted: Bronstein GambitC4013
Latvian Gambit Accepted: Foltys VariationC409
Latvian Gambit Accepted: Foltys-Leonhardt VariationC407
Latvian Gambit Accepted: Leonhardt VariationC409
Latvian Gambit Accepted: Main LineC407
Latvian Gambit Accepted: Nimzowitsch AttackC4011
Latvian Gambit: Behting VariationC4014
Latvian Gambit: Corkscrew CountergambitC408
Latvian Gambit: Corkscrew GambitC4012
Latvian Gambit: Diepstraten CountergambitC405
Latvian Gambit: Fraser DefenseC406
Latvian Gambit: Greco VariationC406
Latvian Gambit: Lobster GambitC405
Latvian Gambit: Mason CountergambitC405
Latvian Gambit: Mayet AttackC405
Latvian Gambit: Mayet Attack, Morgado DefenseC406
Latvian Gambit: Mayet Attack, Poisoned Pawn VariationC4010
Latvian Gambit: Mayet Attack, Polerio-Svedenborg VariationC408
Latvian Gambit: Mayet Attack, Strautins GambitC406
Latvian Gambit: Mlotkowski VariationC405
Latvian Gambit: Senechaud GambitC405
Philidor DefenseC414
Philidor DefenseC415
Philidor DefenseC415
Philidor DefenseC416

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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