Complete reference · ECO D

All ECO D Opening Lines

Closed & semi-closed games (1.d4 d5, Grünfeld). These 566 exact named entries form the move-order reference layer. Open any line for its moves, board position, immediate orientation, and related references; use the linked family guide for the deeper strategic lesson.

• D00 · Amazon Attack
• D00 · Blackmar-Diemer Gambit
• D00 · Blackmar-Diemer Gambit
• D00 · Blackmar-Diemer Gambit Accepted
• D00 · Blackmar-Diemer Gambit Accepted: Bogoljubow Defense
• D00 · Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Kloss Attack
• D00 · Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Mad Dog Attack
• D00 · Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Nimzowitsch Attack
• D00 · Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Studier Attack
• D00 · Blackmar-Diemer Gambit Accepted: Euwe Defense
• D00 · Blackmar-Diemer Gambit Accepted: Euwe Defense, Duthilleul Gambit
• D00 · Blackmar-Diemer Gambit Accepted: Euwe Defense, Zilbermints Gambit
• D00 · Blackmar-Diemer Gambit Accepted: Gunderam Defense
• D00 · Blackmar-Diemer Gambit Accepted: Gunderam Defense, Stader Variation
• D00 · Blackmar-Diemer Gambit Accepted: Holwell Defense
• D00 · Blackmar-Diemer Gambit Accepted: Kaulich Defense
• D00 · Blackmar-Diemer Gambit Accepted: Pietrowsky Defense
• D00 · Blackmar-Diemer Gambit Accepted: Ritter Defense
• D00 · Blackmar-Diemer Gambit Accepted: Ryder Gambit
• D00 · Blackmar-Diemer Gambit Accepted: Schlutter Defense
• D00 · Blackmar-Diemer Gambit Accepted: Teichmann Defense
• D00 · Blackmar-Diemer Gambit Accepted: Teichmann Defense, Ciesielski Variation
• D00 · Blackmar-Diemer Gambit Accepted: Teichmann Defense, Classical Variation
• D00 · Blackmar-Diemer Gambit Accepted: Teichmann Defense, Seidel-Hall Attack
• D00 · Blackmar-Diemer Gambit Accepted: Ziegler Defense
• D00 · Blackmar-Diemer Gambit Declined: Brombacher Countergambit
• D00 · Blackmar-Diemer Gambit Declined: Elbert Countergambit
• D00 · Blackmar-Diemer Gambit Declined: Gedult Defense
• D00 · Blackmar-Diemer Gambit Declined: Lamb Defense
• D00 · Blackmar-Diemer Gambit Declined: Langeheinicke Defense
• D00 · Blackmar-Diemer Gambit Declined: O'Kelly Defense
• D00 · Blackmar-Diemer Gambit Declined: Vienna Defense
• D00 · Blackmar-Diemer Gambit Declined: Weinsbach Defense
• D00 · Blackmar-Diemer Gambit Declined: Weinsbach Defense, Pfrang Gambit
• D00 · Blackmar-Diemer Gambit: Blackmar Gambit
• D00 · Blackmar-Diemer Gambit: Diemer-Rosenberg Attack
• D00 · Blackmar-Diemer Gambit: Fritz Attack
• D00 · Blackmar-Diemer Gambit: Lemberger Countergambit
• D00 · Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation
• D00 · Blackmar-Diemer Gambit: Lemberger Countergambit, Lange Gambit
• D00 · Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack
• D00 · Blackmar-Diemer Gambit: Lemberger Countergambit, Sneiders Attack
• D00 · Blackmar-Diemer Gambit: Lemberger Countergambit, Soller Attack
• D00 · Blackmar-Diemer Gambit: Netherlands Variation
• D00 · Blackmar-Diemer Gambit: Rasa-Studier Gambit
• D00 · Blackmar-Diemer Gambit: Reversed Albin Countergambit
• D00 · Blackmar-Diemer Gambit: von Popiel Gambit
• D00 · Blackmar-Diemer Gambit: von Popiel Gambit, Zilbermints Variation
• D00 · Blackmar-Diemer Gambit: Zeller Defense
• D00 · Blackmar-Diemer Gambit: Zeller Defense, Soller Attack
• D00 · Queen's Pawn Game
• D00 · Queen's Pawn Game
• D00 · Queen's Pawn Game
• D00 · Queen's Pawn Game: Accelerated London System
• D00 · Queen's Pawn Game: Accelerated London System, Steinitz Countergambit
• D00 · Queen's Pawn Game: Accelerated London System, Steinitz Countergambit Accepted
• D00 · Queen's Pawn Game: Accelerated London System, Steinitz Countergambit, Morris Countergambit
• D00 · Queen's Pawn Game: Accelerated London System, Steinitz Countergambit, Morris Countergambit Accepted
• D00 · Queen's Pawn Game: Chigorin Variation
• D00 · Queen's Pawn Game: Chigorin Variation
• D00 · Queen's Pawn Game: Chigorin Variation, Alburt Defense
• D00 · Queen's Pawn Game: Chigorin Variation, Anti-Veresov
• D00 · Queen's Pawn Game: Chigorin Variation, Fianchetto Defense
• D00 · Queen's Pawn Game: Chigorin Variation, Irish Gambit
• D00 · Queen's Pawn Game: Chigorin Variation, Shaviliuk Gambit
• D00 · Queen's Pawn Game: Chigorin Variation, Shropshire Defense
• D00 · Queen's Pawn Game: Hübsch Gambit
• D00 · Queen's Pawn Game: Levitsky Attack
• D00 · Queen's Pawn Game: Levitsky Attack, Welling Variation
• D00 · Queen's Pawn Game: Mason Attack
• D00 · Queen's Pawn Game: Stonewall Attack
• D00 · Queen's Pawn Game: Zurich Gambit
• D01 · Rapport-Jobava System
• D01 · Rapport-Jobava System
• D01 · Rapport-Jobava System
• D01 · Rapport-Jobava System, with e6
• D01 · Richter-Veresov Attack
• D01 · Richter-Veresov Attack
• D01 · Richter-Veresov Attack: Boyce Defense
• D01 · Richter-Veresov Attack: Malich Gambit
• D01 · Richter-Veresov Attack: Richter Variation
• D01 · Richter-Veresov Attack: Two Knights System
• D01 · Richter-Veresov Attack: Two Knights System, Grünfeld Defense
• D01 · Richter-Veresov Attack: Veresov Variation
• D02 · London System: Poisoned Pawn Variation
• D02 · Queen's Gambit Declined: Baltic Defense, Pseudo-Slav
• D02 · Queen's Pawn Game: Anti-Torre
• D02 · Queen's Pawn Game: Chandler Gambit
• D02 · Queen's Pawn Game: Chigorin Variation
• D02 · Queen's Pawn Game: Krause Variation
• D02 · Queen's Pawn Game: Levitsky Attack, Euwe Variation, Modern Line
• D02 · Queen's Pawn Game: London System
• D02 · Queen's Pawn Game: London System
• D02 · Queen's Pawn Game: London System
• D02 · Queen's Pawn Game: London System
• D02 · Queen's Pawn Game: London System, Pterodactyl Variation
• D02 · Queen's Pawn Game: London System, with e6
• D02 · Queen's Pawn Game: London System, with e6
• D02 · Queen's Pawn Game: Symmetrical Variation
• D02 · Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan
• D02 · Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan
• D02 · Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan
• D02 · Queen's Pawn Game: Zilbermints Countergambit
• D02 · Queen's Pawn Game: Zukertort Variation
• D03 · Queen's Pawn Game: Torre Attack
• D03 · Queen's Pawn Game: Torre Attack, Gossip Variation
• D03 · Queen's Pawn Game: Torre Attack, Grünfeld Variation
• D04 · Queen's Pawn Game: Colle System
• D04 · Queen's Pawn Game: Colle System, Anti-Colle
• D04 · Queen's Pawn Game: Colle System, Grünfeld Formation
• D05 · Queen's Pawn Game: Colle System
• D05 · Queen's Pawn Game: Colle System
• D05 · Queen's Pawn Game: Colle System
• D05 · Queen's Pawn Game: Colle System
• D05 · Queen's Pawn Game: Colle System
• D05 · Queen's Pawn Game: Colle System
• D05 · Queen's Pawn Game: Colle System
• D05 · Queen's Pawn Game: Colle System, Traditional Colle
• D05 · Queen's Pawn Game: Zukertort Variation
• D05 · Rubinstein Opening
• D05 · Rubinstein Opening: Bogoljubow Defense
• D05 · Rubinstein Opening: Classical Defense
• D05 · Rubinstein Opening: Semi-Slav Defense
• D05 · Rubinstein Opening: Semi-Slav Defense
• D05 · Rubinstein Opening: Semi-Slav Defense
• D06 · Queen's Gambit
• D06 · Queen's Gambit Declined: Austrian Attack, Salvio Countergambit
• D06 · Queen's Gambit Declined: Austrian Defense
• D06 · Queen's Gambit Declined: Austrian Defense, Gusev Countergambit
• D06 · Queen's Gambit Declined: Austrian Defense, Haberditz Variation
• D06 · Queen's Gambit Declined: Baltic Defense
• D06 · Queen's Gambit Declined: Baltic Defense, Argentinian Gambit
• D06 · Queen's Gambit Declined: Baltic Defense, Pseudo-Chigorin
• D06 · Queen's Gambit Declined: Baltic Defense, Queen Attack
• D06 · Queen's Gambit Declined: Baltic Defense, Queen Attack Deferred
• D06 · Queen's Gambit Declined: Marshall Defense
• D06 · Queen's Gambit Declined: Marshall Defense, Tan Gambit
• D06 · Queen's Gambit Declined: Zilbermints Gambit
• D07 · Queen's Gambit Declined: Chigorin Defense
• D07 · Queen's Gambit Declined: Chigorin Defense
• D07 · Queen's Gambit Declined: Chigorin Defense
• D07 · Queen's Gambit Declined: Chigorin Defense, Exchange Variation
• D07 · Queen's Gambit Declined: Chigorin Defense, Exchange Variation, Costa's Line
• D07 · Queen's Gambit Declined: Chigorin Defense, Janowski Variation
• D07 · Queen's Gambit Declined: Chigorin Defense, Lazard Gambit
• D07 · Queen's Gambit Declined: Chigorin Defense, Main Line
• D07 · Queen's Gambit Declined: Chigorin Defense, Main Line, Alekhine Variation
• D07 · Queen's Gambit Declined: Chigorin Defense, Modern Gambit
• D07 · Queen's Gambit Declined: Chigorin Defense, Tartakower Gambit
• D08 · Queen's Gambit Declined: Albin Countergambit
• D08 · Queen's Gambit Declined: Albin Countergambit, Balogh Variation
• D08 · Queen's Gambit Declined: Albin Countergambit, Janowski Variation
• D08 · Queen's Gambit Declined: Albin Countergambit, Krenosz Variation
• D08 · Queen's Gambit Declined: Albin Countergambit, Lasker Trap
• D08 · Queen's Gambit Declined: Albin Countergambit, Modern Line
• D08 · Queen's Gambit Declined: Albin Countergambit, Normal Line
• D08 · Queen's Gambit Declined: Albin Countergambit, Spassky Variation
• D08 · Queen's Gambit Declined: Albin Countergambit, Tartakower Defense
• D09 · Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation
• D09 · Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Be6 Line
• D09 · Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Bf5 Line
• D09 · Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Bg4 Line
• D10 · Slav Defense
• D10 · Slav Defense
• D10 · Slav Defense
• D10 · Slav Defense: Diemer Gambit
• D10 · Slav Defense: Exchange Variation
• D10 · Slav Defense: Exchange Variation, Boor Attack
• D10 · Slav Defense: Slav Gambit, Alekhine Attack
• D10 · Slav Defense: Winawer Countergambit
• D10 · Slav Defense: Winawer Countergambit, Anti-Winawer Gambit
• D11 · Slav Defense: Bonet Gambit
• D11 · Slav Defense: Breyer Variation
• D11 · Slav Defense: Modern Line
• D11 · Slav Defense: Modern Line
• D11 · Slav Defense: Modern Line
• D11 · Slav Defense: Modern Line
• D11 · Slav Defense: Quiet Variation
• D11 · Slav Defense: Quiet Variation, Pin Defense
• D12 · Slav Defense: Quiet Variation, Amsterdam Variation
• D12 · Slav Defense: Quiet Variation, Landau Variation
• D12 · Slav Defense: Quiet Variation, Schallopp Defense
• D12 · Slav Defense: Quiet Variation, Schallopp Defense
• D13 · Slav Defense: Exchange Variation
• D13 · Slav Defense: Exchange Variation, Schallopp Variation
• D14 · Slav Defense: Exchange Variation, Symmetrical Line
• D14 · Slav Defense: Exchange Variation, Trifunovic Variation
• D15 · Slav Defense: Alekhine Variation
• D15 · Slav Defense: Chebanenko Variation
• D15 · Slav Defense: Chebanenko Variation
• D15 · Slav Defense: Chebanenko Variation, Advance System
• D15 · Slav Defense: Geller Gambit
• D15 · Slav Defense: Geller Gambit
• D15 · Slav Defense: Schlechter Variation
• D15 · Slav Defense: Süchting Variation
• D15 · Slav Defense: Three Knights Variation
• D15 · Slav Defense: Two Knights Attack
• D16 · Slav Defense: Alapin Variation
• D16 · Slav Defense: Smyslov Variation
• D16 · Slav Defense: Soultanbeieff Variation
• D16 · Slav Defense: Steiner Variation
• D17 · Slav Defense: Czech Variation
• D17 · Slav Defense: Czech Variation, Bled Attack
• D17 · Slav Defense: Czech Variation, Carlsbad Variation
• D17 · Slav Defense: Czech Variation, Carlsbad Variation, Morozevich Variation
• D17 · Slav Defense: Czech Variation, Krause Attack
• D17 · Slav Defense: Czech Variation, Krause Attack, Fazekas Gambit
• D17 · Slav Defense: Czech Variation, Wiesbaden Variation
• D17 · Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line
• D18 · Slav Defense: Czech Variation, Classical System
• D18 · Slav Defense: Czech Variation, Lasker Variation
• D19 · Slav Defense: Czech Variation, Classical System, Main Line
• D19 · Slav Defense: Czech Variation, Dutch Variation
• D19 · Slav Defense: Czech Variation, Dutch Variation, Sämisch Variation
• D20 · Queen's Gambit Accepted
• D20 · Queen's Gambit Accepted: Accelerated Mannheim Variation
• D20 · Queen's Gambit Accepted: Central Variation, Alekhine System
• D20 · Queen's Gambit Accepted: Central Variation, Greco Variation
• D20 · Queen's Gambit Accepted: Central Variation, McDonnell Defense
• D20 · Queen's Gambit Accepted: Central Variation, McDonnell Defense, Somov Gambit
• D20 · Queen's Gambit Accepted: Central Variation, Modern Defense
• D20 · Queen's Gambit Accepted: Central Variation, Rubinstein Defense
• D20 · Queen's Gambit Accepted: Central Variation, Rubinstein Defense, Yefimov Gambit
• D20 · Queen's Gambit Accepted: Linares Variation
• D20 · Queen's Gambit Accepted: Old Variation
• D20 · Queen's Gambit Accepted: Old Variation, Billinger Gambit
• D20 · Queen's Gambit Accepted: Old Variation, Christensen Gambit
• D20 · Queen's Gambit Accepted: Old Variation, Korchnoi Gambit
• D20 · Queen's Gambit Accepted: Old Variation, Novikov Gambit
• D20 · Queen's Gambit Accepted: Saduleto Variation
• D20 · Queen's Gambit Accepted: Schwartz Defense
• D21 · Queen's Gambit Accepted: Alekhine Defense, Borisenko-Furman Variation
• D21 · Queen's Gambit Accepted: Godes Variation
• D21 · Queen's Gambit Accepted: Gunsberg Defense
• D21 · Queen's Gambit Accepted: Normal Variation
• D21 · Queen's Gambit Accepted: Rosenthal Variation
• D21 · Queen's Gambit Accepted: Slav Gambit
• D22 · Queen's Gambit Accepted: Alekhine Defense
• D22 · Queen's Gambit Accepted: Alekhine Defense, Alatortsev Variation
• D22 · Queen's Gambit Accepted: Alekhine Defense, Haberditz Variation
• D23 · Queen's Gambit Accepted
• D23 · Queen's Gambit Accepted: Mannheim Variation
• D24 · Queen's Gambit Accepted
• D24 · Queen's Gambit Accepted: Bogoljubow Defense
• D24 · Queen's Gambit Accepted: Gunsberg Defense, Prianishenmo Gambit
• D24 · Queen's Gambit Accepted: Showalter Variation
• D25 · Queen's Gambit Accepted: Janowski-Larsen Variation
• D25 · Queen's Gambit Accepted: Normal Variation
• D25 · Queen's Gambit Accepted: Smyslov Variation
• D25 · Queen's Gambit Accepted: Winawer Defense
• D26 · Queen's Gambit Accepted: Classical Defense
• D26 · Queen's Gambit Accepted: Classical Defense, Normal Line
• D26 · Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Development Variation
• D26 · Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Exchange Variation
• D26 · Queen's Gambit Accepted: Classical, Furman Variation
• D26 · Queen's Gambit Accepted: Normal Variation, Traditional System
• D27 · Queen's Gambit Accepted: Classical Defense, Main Line
• D27 · Queen's Gambit Accepted: Classical Defense, Rubinstein Variation
• D27 · Queen's Gambit Accepted: Classical Defense, Russian Gambit
• D27 · Queen's Gambit Accepted: Furman Variation
• D28 · Queen's Gambit Accepted: Classical Defense, Alekhine System
• D28 · Queen's Gambit Accepted: Classical Defense, Alekhine System
• D28 · Queen's Gambit Accepted: Classical, Flohr Variation
• D29 · Queen's Gambit Accepted: Classical Defense, Alekhine System, Main Line
• D29 · Queen's Gambit Accepted: Classical Defense, Alekhine System, Smyslov Variation
• D30 · Queen's Gambit Declined
• D30 · Queen's Gambit Declined: Capablanca Variation
• D30 · Queen's Gambit Declined: Capablanca Variation
• D30 · Queen's Gambit Declined: Semmering Variation
• D30 · Queen's Gambit Declined: Spielmann Variation
• D30 · Queen's Gambit Declined: Stonewall Variation
• D30 · Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch
• D30 · Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch Bishop Attack
• D30 · Queen's Gambit Declined: Traditional Variation
• D30 · Queen's Gambit Declined: Vienna Variation
• D30 · Semi-Slav Defense: Quiet Variation
• D30 · Semi-Slav Defense: Quiet Variation
• D31 · Queen's Gambit Declined: Alapin Variation
• D31 · Queen's Gambit Declined: Charousek Variation
• D31 · Queen's Gambit Declined: Charousek Variation, Miladinovic Gambit
• D31 · Queen's Gambit Declined: Janowski Variation
• D31 · Queen's Gambit Declined: Queen's Knight Variation
• D31 · Queen's Gambit Declined: Semi-Slav, Abrahams Variation
• D31 · Queen's Gambit Declined: Semi-Slav, Junge Variation
• D31 · Queen's Gambit Declined: Semi-Slav, Koomen Variation
• D31 · Semi-Slav Defense: Accelerated Move Order
• D31 · Semi-Slav Defense: Anti-Noteboom, Stonewall Variation, Portisch Gambit
• D31 · Semi-Slav Defense: Gunderam Gambit
• D31 · Semi-Slav Defense: Marshall Gambit
• D31 · Semi-Slav Defense: Marshall Gambit, Forgotten Variation
• D31 · Semi-Slav Defense: Marshall Gambit, Main Line
• D31 · Semi-Slav Defense: Marshall Gambit, Tolush Variation
• D31 · Semi-Slav Defense: Noteboom Variation
• D31 · Semi-Slav Defense: Noteboom Variation, Abrahams Variation
• D31 · Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Gambit
• D31 · Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation
• D31 · Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation, Belyavsky Line
• D32 · Queen's Gambit Declined: Tarrasch Defense
• D32 · Tarrasch Defense
• D32 · Tarrasch Defense: Grünfeld Gambit
• D32 · Tarrasch Defense: Marshall Gambit
• D32 · Tarrasch Defense: Schara Gambit
• D32 · Tarrasch Defense: Symmetrical Variation
• D32 · Tarrasch Defense: Tarrasch Gambit
• D32 · Tarrasch Defense: Two Knights Variation
• D32 · Tarrasch Defense: von Hennig Gambit
• D33 · Tarrasch Defense: Dubov Tarrasch
• D33 · Tarrasch Defense: Prague Variation
• D33 · Tarrasch Defense: Rubinstein System
• D33 · Tarrasch Defense: Swedish Variation
• D33 · Tarrasch Defense: Swedish Variation, Central Break
• D33 · Tarrasch Defense: Wagner Variation
• D34 · Queen's Gambit Declined: Tarrasch Defense, Stoltz Variation
• D34 · Tarrasch Defense: Classical Variation
• D34 · Tarrasch Defense: Classical Variation, Advance Variation
• D34 · Tarrasch Defense: Classical Variation, Bogoljubow Variation
• D34 · Tarrasch Defense: Classical Variation, Carlsbad Variation
• D34 · Tarrasch Defense: Classical Variation, Chandler Variation
• D34 · Tarrasch Defense: Classical Variation, Classical Tarrasch Gambit
• D34 · Tarrasch Defense: Classical Variation, Endgame Variation
• D34 · Tarrasch Defense: Classical Variation, Main Line
• D34 · Tarrasch Defense: Classical Variation, Petursson Variation
• D34 · Tarrasch Defense: Classical Variation, Réti Variation
• D34 · Tarrasch Defense: Classical Variation, Spassky Variation
• D34 · Tarrasch Defense: Prague Variation, Main Line
• D35 · Queen's Gambit Declined: Exchange Variation
• D35 · Queen's Gambit Declined: Exchange Variation
• D35 · Queen's Gambit Declined: Exchange Variation, Carlsen Variation
• D35 · Queen's Gambit Declined: Exchange Variation, Chameleon Variation
• D35 · Queen's Gambit Declined: Exchange Variation, Positional Variation
• D35 · Queen's Gambit Declined: Exchange Variation, Positional Variation
• D35 · Queen's Gambit Declined: Exchange Variation, Sämisch Variation
• D35 · Queen's Gambit Declined: Harrwitz Attack
• D35 · Queen's Gambit Declined: Normal Defense
• D36 · Queen's Gambit Declined: Exchange Variation, Reshevsky Variation
• D36 · Queen's Gambit Declined: Exchange Variation, Reshevsky Variation
• D36 · Queen's Gambit Declined: Exchange Variation, Reshevsky Variation
• D36 · Queen's Gambit Declined: Exchange Variation, Reshevsky Variation
• D37 · Queen's Gambit Declined: Barmen Variation
• D37 · Queen's Gambit Declined: Harrwitz Attack
• D37 · Queen's Gambit Declined: Harrwitz Attack
• D37 · Queen's Gambit Declined: Harrwitz Attack
• D37 · Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense
• D37 · Queen's Gambit Declined: Harrwitz Attack, Main Line
• D37 · Queen's Gambit Declined: Harrwitz Attack, Orthodox Defense
• D37 · Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense
• D37 · Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line
• D37 · Queen's Gambit Declined: Knight Defense, Alekhine Gambit
• D37 · Queen's Gambit Declined: Miles Variation
• D37 · Queen's Gambit Declined: Three Knights Variation
• D37 · Queen's Gambit Declined: Three Knights, Vienna Variation
• D37 · Queen's Gambit Declined: Vienna Variation, Quiet Variation
• D38 · Queen's Gambit Declined: Ragozin Defense
• D38 · Queen's Gambit Declined: Ragozin Defense, Alekhine Variation
• D38 · Queen's Gambit Declined: Westphalian Variation
• D39 · Queen's Gambit Declined: Ragozin Defense, Vienna Variation
• D40 · Queen's Gambit Declined: Semi-Tarrasch Defense
• D40 · Queen's Gambit Declined: Semi-Tarrasch Defense, Levenfish Variation
• D40 · Queen's Gambit Declined: Semi-Tarrasch Defense, Pillsbury Variation
• D40 · Queen's Gambit Declined: Semi-Tarrasch Defense, Symmetrical Variation
• D41 · Queen's Gambit Declined: Semi-Tarrasch Defense
• D41 · Queen's Gambit Declined: Semi-Tarrasch Defense
• D41 · Queen's Gambit Declined: Semi-Tarrasch Defense, Endgame Variation
• D41 · Queen's Gambit Declined: Semi-Tarrasch Defense, Exchange Variation
• D41 · Queen's Gambit Declined: Semi-Tarrasch Defense, Exchange Variation
• D41 · Queen's Gambit Declined: Semi-Tarrasch Defense, Kmoch Variation
• D41 · Queen's Gambit Declined: Semi-Tarrasch Defense, Pillsbury Variation
• D41 · Queen's Gambit Declined: Semi-Tarrasch Defense, San Sebastian Variation
• D42 · Queen's Gambit Declined: Semi-Tarrasch Defense, Main Line
• D43 · Semi-Slav Defense
• D43 · Semi-Slav Defense: Anti-Moscow Gambit
• D43 · Semi-Slav Defense: Hastings Variation
• D43 · Semi-Slav Defense: Moscow Variation
• D44 · Semi-Slav Defense Accepted
• D44 · Semi-Slav Defense: Botvinnik Variation
• D44 · Semi-Slav Defense: Botvinnik Variation
• D44 · Semi-Slav Defense: Botvinnik Variation, Alatortsev System
• D44 · Semi-Slav Defense: Botvinnik Variation, Ekstrom Variation
• D44 · Semi-Slav Defense: Botvinnik Variation, Lilienthal Variation
• D44 · Semi-Slav Defense: Botvinnik Variation, Szabo Variation
• D45 · Semi-Slav Defense: Accelerated Meran Variation
• D45 · Semi-Slav Defense: Main Line
• D45 · Semi-Slav Defense: Normal Variation
• D45 · Semi-Slav Defense: Normal Variation
• D45 · Semi-Slav Defense: Normal Variation
• D45 · Semi-Slav Defense: Rubinstein System
• D45 · Semi-Slav Defense: Stoltz Variation
• D45 · Semi-Slav Defense: Stoltz Variation
• D45 · Semi-Slav Defense: Stoltz Variation
• D45 · Semi-Slav Defense: Stoltz Variation
• D45 · Semi-Slav Defense: Stoltz Variation
• D45 · Semi-Slav Defense: Stoltz Variation, Center Variation
• D45 · Semi-Slav Defense: Stoltz Variation, Center Variation, Mikhalchishin Line
• D45 · Semi-Slav Defense: Stoltz Variation, Shabalov Attack
• D45 · Semi-Slav Defense: Stonewall Defense
• D46 · Semi-Slav Defense: Bogoljubow Variation
• D46 · Semi-Slav Defense: Chigorin Defense
• D46 · Semi-Slav Defense: Chigorin Defense
• D46 · Semi-Slav Defense: Chigorin Defense
• D46 · Semi-Slav Defense: Chigorin Defense
• D46 · Semi-Slav Defense: Chigorin Defense
• D46 · Semi-Slav Defense: Chigorin Defense
• D46 · Semi-Slav Defense: Chigorin Defense
• D46 · Semi-Slav Defense: Chigorin Defense
• D46 · Semi-Slav Defense: Main Line
• D46 · Semi-Slav Defense: Main Line
• D46 · Semi-Slav Defense: Romih Variation
• D47 · Semi-Slav Defense: Meran Variation
• D47 · Semi-Slav Defense: Meran Variation, Lundin Variation
• D47 · Semi-Slav Defense: Meran Variation, Wade Variation
• D47 · Semi-Slav Defense: Meran Variation, Wade Variation, Kaidanov Gambit
• D47 · Semi-Slav Defense: Meran Variation, Wade Variation, Larsen Variation
• D47 · Semi-Slav Defense: Semi-Meran Variation
• D48 · Semi-Slav Defense: Meran Variation
• D48 · Semi-Slav Defense: Meran Variation
• D48 · Semi-Slav Defense: Meran Variation, Old Variation
• D48 · Semi-Slav Defense: Meran Variation, Pirc Variation
• D48 · Semi-Slav Defense: Meran Variation, Reynolds' Variation
• D49 · Semi-Slav Defense: Meran Variation, Blumenfeld Variation
• D49 · Semi-Slav Defense: Meran Variation, Rabinovich Variation
• D49 · Semi-Slav Defense: Meran Variation, Rellstab Attack
• D49 · Semi-Slav Defense: Meran Variation, Sozin Variation
• D49 · Semi-Slav Defense: Meran Variation, Sozin Variation
• D49 · Semi-Slav Defense: Meran Variation, Stahlberg Variation
• D50 · Queen's Gambit Declined: Been-Koomen Variation
• D50 · Queen's Gambit Declined: Modern Variation
• D50 · Queen's Gambit Declined: Pseudo-Tarrasch Variation
• D50 · Queen's Gambit Declined: Pseudo-Tarrasch Variation, Canal Variation
• D50 · Queen's Gambit Declined: Pseudo-Tarrasch Variation, Primitive Pillsbury Variation
• D50 · Queen's Gambit Declined: Semi-Tarrasch Defense, Krause Variation
• D51 · Queen's Gambit Declined: Alekhine Variation
• D51 · Queen's Gambit Declined: Capablanca Variation, Anti-Cambridge Springs Variation
• D51 · Queen's Gambit Declined: Manhattan Variation
• D51 · Queen's Gambit Declined: Modern Variation, Knight Defense
• D51 · Queen's Gambit Declined: Modern Variation, Knight Defense
• D51 · Queen's Gambit Declined: Modern Variation, Knight Defense
• D51 · Queen's Gambit Declined: Rochlin Variation
• D52 · Queen's Gambit Declined
• D52 · Queen's Gambit Declined: Cambridge Springs Defense
• D52 · Queen's Gambit Declined: Cambridge Springs Defense
• D52 · Queen's Gambit Declined: Cambridge Springs Defense, Argentine Variation
• D52 · Queen's Gambit Declined: Cambridge Springs Defense, Bogoljubow Variation
• D52 · Queen's Gambit Declined: Cambridge Springs Defense, Capablanca Variation
• D52 · Queen's Gambit Declined: Cambridge Springs Defense, Rubinstein Variation
• D52 · Queen's Gambit Declined: Cambridge Springs Defense, Yugoslav Variation
• D53 · Queen's Gambit Declined
• D53 · Queen's Gambit Declined
• D53 · Queen's Gambit Declined: Lasker Defense
• D53 · Queen's Gambit Declined: Modern Variation, Heral Variation
• D53 · Queen's Gambit Declined: Uhlmann Variation
• D54 · Queen's Gambit Declined: Neo-Orthodox Variation
• D55 · Queen's Gambit Declined: Anti-Tartakower Variation
• D55 · Queen's Gambit Declined: Anti-Tartakower Variation, Petrosian Variation
• D55 · Queen's Gambit Declined: Modern Variation, Normal Line
• D55 · Queen's Gambit Declined: Neo-Orthodox Variation
• D55 · Queen's Gambit Declined: Neo-Orthodox Variation, Main Line
• D55 · Queen's Gambit Declined: Pillsbury Attack
• D56 · Queen's Gambit Declined: Lasker Defense
• D56 · Queen's Gambit Declined: Lasker Defense, Russian Variation
• D56 · Queen's Gambit Declined: Lasker Defense, Teichmann Variation
• D57 · Queen's Gambit Declined: Lasker Defense, Bernstein Variation
• D57 · Queen's Gambit Declined: Lasker Defense, Bernstein Variation, Mar del Plata Gambit
• D57 · Queen's Gambit Declined: Lasker Defense, Main Line
• D58 · Queen's Gambit Declined: Tartakower Defense
• D58 · Queen's Gambit Declined: Tartakower Defense, Exchange Variation
• D59 · Queen's Gambit Declined: Tartakower Defense
• D59 · Queen's Gambit Declined: Tartakower Defense, Makogonov Exchange Variation
• D60 · Queen's Gambit Declined: Orthodox Defense
• D60 · Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation
• D60 · Queen's Gambit Declined: Orthodox Defense, Rauzer Variation
• D61 · Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation
• D62 · Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation, Flohr Line
• D63 · Queen's Gambit Declined: Orthodox Defense, Capablanca Variation
• D63 · Queen's Gambit Declined: Orthodox Defense, Henneberger Variation
• D63 · Queen's Gambit Declined: Orthodox Defense, Main Line
• D63 · Queen's Gambit Declined: Orthodox Defense, Main Line
• D63 · Queen's Gambit Declined: Orthodox Defense, Pillsbury Variation
• D63 · Queen's Gambit Declined: Orthodox Defense, Swiss, Carlsbad Variation
• D64 · Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack
• D64 · Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack
• D64 · Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack
• D64 · Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack
• D65 · Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack
• D66 · Queen's Gambit Declined: Orthodox Defense, Bd3 Line
• D66 · Queen's Gambit Declined: Orthodox Defense, Fianchetto Variation
• D67 · Queen's Gambit Declined: Orthodox Defense, Alekhine Variation
• D67 · Queen's Gambit Declined: Orthodox Defense, Bd3 Line
• D67 · Queen's Gambit Declined: Orthodox Defense, Capablanca System
• D67 · Queen's Gambit Declined: Orthodox Defense, Janowski Variation
• D67 · Queen's Gambit Declined: Orthodox Defense, Main Line
• D68 · Queen's Gambit Declined: Orthodox Defense, Classical Variation
• D68 · Queen's Gambit Declined: Orthodox Defense, Classical Variation
• D68 · Queen's Gambit Declined: Orthodox Defense, Classical Variation
• D69 · Queen's Gambit Declined: Orthodox Defense, Classical Variation
• D70 · Neo-Grünfeld Defense: Goglidze Attack
• D70 · Neo-Grünfeld Defense: with g3
• D70 · Neo-Grünfeld Defense: with Nf3
• D71 · Neo-Grünfeld Defense: Exchange Variation
• D72 · Neo-Grünfeld Defense: with g3
• D73 · Neo-Grünfeld Defense: with g3
• D74 · Neo-Grünfeld Defense: Delayed Exchange Variation
• D75 · Neo-Grünfeld Defense: Delayed Exchange Variation
• D75 · Neo-Grünfeld Defense: Delayed Exchange Variation
• D76 · Neo-Grünfeld Defense: Delayed Exchange Variation
• D77 · Neo-Grünfeld Defense: Classical Variation
• D77 · Neo-Grünfeld Defense: Classical Variation, Modern Defense
• D77 · Neo-Grünfeld Defense: Classical Variation, Polgar Variation
• D78 · Neo-Grünfeld Defense: Classical Variation, Original Defense
• D79 · Neo-Grünfeld Defense: Ultra-Delayed Exchange Variation
• D80 · Grünfeld Defense
• D80 · Grünfeld Defense: Gibbon Gambit
• D80 · Grünfeld Defense: Lundin Variation
• D80 · Grünfeld Defense: Lutikov Variation
• D80 · Grünfeld Defense: Lutikov Variation, Murrey Attack
• D80 · Grünfeld Defense: Stockholm Variation
• D80 · Grünfeld Defense: Zaitsev Gambit
• D81 · Grünfeld Defense: Russian Variation, Accelerated Variation
• D82 · Grünfeld Defense: Brinckmann Attack
• D83 · Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit
• D83 · Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit, Botvinnik Variation
• D83 · Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit, Capablanca Variation
• D83 · Grünfeld Defense: Brinckmann Attack, Reshevsky Gambit
• D84 · Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit Accepted
• D85 · Grünfeld Defense: Exchange Variation
• D85 · Grünfeld Defense: Exchange Variation, Modern Exchange Variation
• D85 · Grünfeld Defense: Exchange Variation, Modern Exchange Variation
• D85 · Grünfeld Defense: Exchange Variation, Modern Exchange Variation
• D85 · Grünfeld Defense: Exchange Variation, Modern Exchange Variation, Kramnik's Line
• D85 · Grünfeld Defense: Exchange Variation, Modern Exchange Variation, Pawn Grab Line
• D85 · Grünfeld Defense: Exchange Variation, Nadanian Attack
• D86 · Grünfeld Defense: Exchange Variation, Classical Variation
• D86 · Grünfeld Defense: Exchange Variation, Larsen Variation
• D86 · Grünfeld Defense: Exchange Variation, Larsen Variation
• D86 · Grünfeld Defense: Exchange Variation, Simagin's Improved Variation
• D86 · Grünfeld Defense: Exchange Variation, Simagin's Lesser Variation
• D87 · Grünfeld Defense: Exchange Variation, Seville Variation
• D87 · Grünfeld Defense: Exchange Variation, Spassky Variation
• D88 · Grünfeld Defense: Exchange Variation, Spassky Variation
• D89 · Grünfeld Defense: Exchange Variation, Sokolsky Variation
• D89 · Grünfeld Defense: Exchange Variation, Spassky Variation
• D90 · Grünfeld Defense: Flohr Variation
• D90 · Grünfeld Defense: Three Knights Variation
• D90 · Grünfeld Defense: Three Knights Variation
• D91 · Grünfeld Defense: Three Knights Variation, Petrosian System
• D92 · Grünfeld Defense: Three Knights Variation, Hungarian Attack
• D93 · Grünfeld Defense: Three Knights Variation, Hungarian Variation
• D94 · Grünfeld Defense: Flohr Defense
• D94 · Grünfeld Defense: Makogonov Variation
• D94 · Grünfeld Defense: Opocensky Variation
• D94 · Grünfeld Defense: Smyslov Defense
• D94 · Grünfeld Defense: Three Knights Variation, Burille Variation
• D94 · Grünfeld Defense: Three Knights Variation, Paris Variation
• D95 · Grünfeld Defense: Botvinnik Variation
• D95 · Grünfeld Defense: Pachman Variation
• D95 · Grünfeld Defense: Three Knights Variation, Vienna Variation
• D96 · Grünfeld Defense: Russian Variation
• D97 · Grünfeld Defense: Russian Variation
• D97 · Grünfeld Defense: Russian Variation, Byrne Variation
• D97 · Grünfeld Defense: Russian Variation, Hungarian Variation
• D97 · Grünfeld Defense: Russian Variation, Levenfish Variation
• D97 · Grünfeld Defense: Russian Variation, Prins Variation
• D97 · Grünfeld Defense: Russian Variation, Szabo Variation
• D98 · Grünfeld Defense: Russian Variation, Keres Variation
• D98 · Grünfeld Defense: Russian Variation, Smyslov Variation
• D99 · Grünfeld Defense: Russian Variation, Smyslov Variation
• D99 · Grünfeld Defense: Russian Variation, Yugoslav Variation