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ECO Volume C: Open Games and the French Defense

100 ECO codes, 1,250 named lines. Linked names have their own family guide on this site; unlinked names are listed for reference only.

All codes in Volume C

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ECO Volume C codes
CodeName(s)Lines
C00French DefenseRat Defense43
C01French Defense6
C02French Defense22
C03French Defense6
C04French Defense1
C05French Defense4
C06French Defense2
C07French Defense7
C08French Defense2
C09French Defense2
C10French Defense10
C11French Defense19
C12French Defense13
C13French Defense13
C14French Defense8
C15French Defense14
C16French Defense2
C17French Defense9
C18French Defense16
C19French Defense14
C20Barnes OpeningBongcloud AttackCenter GameEnglish OpeningKing's Pawn GameKing's Pawn OpeningPortuguese Opening30
C21Center GameCenter Game AcceptedDanish GambitDanish Gambit AcceptedDanish Gambit Declined19
C22Center Game7
C23Bishop's Opening24
C24Bishop's Opening10
C25Vienna Gambit, with Max Lange DefenseVienna Game31
C26Bishop's OpeningVienna Game10
C27Bishop's OpeningVienna Game7
C28Bishop's OpeningVienna Game3
C29Vienna Game10
C30King's GambitKing's Gambit Declined32
C31King's Gambit DeclinedVan Geet Opening15
C32King's Gambit Declined8
C33King's Gambit Accepted46
C34King's Gambit Accepted13
C35King's Gambit Accepted4
C36King's Gambit Accepted4
C37King's Gambit Accepted34
C38King's Gambit Accepted6
C39King's Gambit Accepted30
C40Elephant GambitGunderam DefenseKing's Knight OpeningKing's Pawn GameLatvian GambitLatvian Gambit Accepted40
C41Philidor Defense44
C42Petrov's Defense40
C43Bishop's OpeningPetrov's Defense12
C44Dresden OpeningIrish GambitKing's Knight OpeningKing's Pawn GameLatvian GambitPonziani OpeningScotch Game53
C45Scotch Game28
C46Three Knights Opening6
C47Four Knights Game20
C48Four Knights Game13
C49Four Knights Game15
C50Four Knights GameItalian Game22
C51Italian Game29
C52Italian Game22
C53Italian Game8
C54Italian Game46
C55Italian Game6
C56Italian Game24
C57Italian Game17
C58Italian Game10
C59Italian Game4
C60Ruy Lopez19
C61Ruy Lopez2
C62Ruy Lopez5
C63Ruy Lopez9
C64Ruy Lopez10
C65Ruy Lopez13
C66Ruy Lopez7
C67Ruy Lopez16
C68Ruy Lopez6
C69Ruy Lopez5
C70Ruy Lopez12
C71Ruy Lopez4
C72Ruy Lopez2
C73Ruy Lopez2
C74Ruy Lopez3
C75Ruy Lopez2
C76Ruy Lopez1
C77Ruy Lopez8
C78Ruy Lopez9
C79Ruy Lopez4
C80Ruy Lopez18
C81Ruy Lopez3
C82Ruy Lopez7
C83Ruy Lopez6
C84Ruy Lopez6
C85Ruy Lopez1
C86Ruy Lopez4
C87Ruy Lopez1
C88Ruy Lopez9
C89Ruy Lopez9
C90Ruy Lopez4
C91Ruy Lopez3
C92Ruy Lopez6
C93Ruy Lopez1
C94Ruy Lopez2
C95Ruy Lopez4
C96Ruy Lopez6
C97Ruy Lopez3
C98Ruy Lopez2
C99Ruy Lopez1

Other volumes

Volume A · Volume B · Volume D · Volume E · All ECO families →