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ECO Volume D: Closed Games and Semi-Closed Games

100 ECO codes, 614 named lines. Linked names have their own family guide on this site; unlinked names are listed for reference only.

What sets this volume apart

Volume D covers the closed and semi-closed games: openings built mainly around 1.d4 d5, where both sides contest the center directly rather than fianchettoeing around it - the Queen’s Gambit, Slav, Semi-Slav, and Tarrasch Defense chief among them - plus the Richter-Veresov and, in one of the classification’s better-known quirks, the Grünfeld Defense itself: hypermodern and Indian in character, but filed here rather than alongside Volume E’s other Indian Defenses.

All codes in Volume D

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ECO Volume D codes
CodeName(s)Lines
D00Amazon AttackBlackmar-Diemer GambitBlackmar-Diemer Gambit AcceptedBlackmar-Diemer Gambit DeclinedQueen’s Pawn Game72
D01Rapport-Jobava SystemRapport-Jobava System, with e6Richter-Veresov Attack12
D02London System: Poisoned Pawn VariationQueen’s Gambit Declined: Baltic DefenseQueen’s Pawn Game20
D03Queen’s Pawn Game: Torre Attack14
D04Queen’s Pawn Game: Colle System3
D05Queen’s Pawn Game: Colle SystemRubinstein Opening15
D06Queen’s GambitQueen’s Gambit Declined13
D07Queen’s Gambit Declined: Chigorin Defense11
D08Queen’s Gambit Declined: Albin Countergambit9
D09Queen’s Gambit Declined: Albin Countergambit4
D10Slav Defense9
D11Slav Defense8
D12Slav Defense: Quiet Variation4
D13Slav Defense: Exchange Variation2
D14Slav Defense: Exchange Variation2
D15Slav Defense10
D16Slav Defense4
D17Slav Defense: Czech Variation8
D18Slav Defense: Czech Variation2
D19Slav Defense: Czech Variation3
D20Queen’s Gambit Accepted17
D21Queen’s Gambit Accepted6
D22Queen’s Gambit Accepted: Alekhine Defense3
D23Queen’s Gambit Accepted2
D24Queen’s Gambit Accepted5
D25Queen’s Gambit Accepted4
D26Queen’s Gambit Accepted9
D27Queen’s Gambit Accepted: Classical Defense6
D28Queen’s Gambit Accepted: Classical Defense3
D29Queen’s Gambit Accepted: Classical Defense3
D30Queen’s Gambit DeclinedSemi-Slav Defense: Quiet Variation12
D31Queen’s Gambit DeclinedSemi-Slav Defense21
D32Queen’s Gambit Declined: Tarrasch DefenseTarrasch Defense13
D33Tarrasch Defense6
D34Queen’s Gambit Declined: Tarrasch DefenseTarrasch Defense: Classical Variation13
D35Queen’s Gambit Declined: Exchange Variation10
D36Queen’s Gambit Declined: Exchange Variation4
D37Queen’s Gambit Declined: Harrwitz Attack15
D38Queen’s Gambit Declined: Ragozin Defense3
D39Queen’s Gambit Declined: Ragozin Defense1
D40Queen’s Gambit Declined: Semi-Tarrasch Defense6
D41Queen’s Gambit Declined: Semi-Tarrasch Defense10
D42Queen’s Gambit Declined: Semi-Tarrasch Defense1
D43Semi-Slav Defense4
D44Semi-Slav Defense AcceptedSemi-Slav Defense: Botvinnik Variation7
D45Semi-Slav Defense: Stoltz Variation15
D46Semi-Slav Defense: Chigorin Defense12
D47Semi-Slav Defense: Meran Variation6
D48Semi-Slav Defense: Meran Variation5
D49Semi-Slav Defense: Meran Variation6
D50Queen’s Gambit Declined6
D51Queen’s Gambit Declined7
D52Queen’s Gambit Declined: Cambridge Springs Defense8
D53Queen’s Gambit Declined9
D54Queen’s Gambit Declined: Neo-Orthodox Variation1
D55Queen’s Gambit Declined6
D56Queen’s Gambit Declined: Lasker Defense5
D57Queen’s Gambit Declined: Lasker Defense3
D58Queen’s Gambit Declined: Tartakower Defense2
D59Queen’s Gambit Declined: Tartakower Defense2
D60Queen’s Gambit Declined: Orthodox Defense4
D61Queen’s Gambit Declined: Orthodox Defense6
D62Queen’s Gambit Declined: Orthodox Defense1
D63Queen’s Gambit Declined: Orthodox Defense10
D64Queen’s Gambit Declined: Orthodox Defense4
D65Queen’s Gambit Declined: Orthodox Defense2
D66Queen’s Gambit Declined: Orthodox Defense3
D67Queen’s Gambit Declined: Orthodox Defense5
D68Queen’s Gambit Declined: Orthodox Defense3
D69Queen’s Gambit Declined: Orthodox Defense1
D70Neo-Grünfeld Defense3
D71Neo-Grünfeld Defense: Exchange Variation2
D72Neo-Grünfeld Defense: with g31
D73Neo-Grünfeld Defense: with g31
D74Neo-Grünfeld Defense: Delayed Exchange Variation1
D75Neo-Grünfeld Defense: Delayed Exchange Variation2
D76Neo-Grünfeld Defense: Delayed Exchange Variation1
D77Neo-Grünfeld Defense: Classical Variation3
D78Neo-Grünfeld Defense: Classical Variation1
D79Neo-Grünfeld Defense: Ultra-Delayed Exchange Variation1
D80Grünfeld Defense7
D81Grünfeld Defense: Russian Variation1
D82Grünfeld Defense: Brinckmann Attack1
D83Grünfeld Defense: Brinckmann Attack4
D84Grünfeld Defense: Brinckmann Attack1
D85Grünfeld Defense: Exchange Variation7
D86Grünfeld Defense: Exchange Variation5
D87Grünfeld Defense: Exchange Variation2
D88Grünfeld Defense: Exchange Variation1
D89Grünfeld Defense: Exchange Variation2
D90Grünfeld Defense: Three Knights Variation3
D91Grünfeld Defense: Three Knights Variation1
D92Grünfeld Defense: Three Knights Variation1
D93Grünfeld Defense: Three Knights Variation1
D94Grünfeld Defense6
D95Grünfeld Defense3
D96Grünfeld Defense: Russian Variation1
D97Grünfeld Defense: Russian Variation6
D98Grünfeld Defense: Russian Variation2
D99Grünfeld Defense: Russian Variation2

Other volumes

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