Opening code
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A00 Irregular Openings
A01 Larsen's Opening
A02 Bird Opening
A03 Bird Opening (1. f4 d5)
A04 Réti (1.Nf3)
A05 Réti (1.Nf3 Nf6)
A06 Réti (1.Nf3 d5), Zukertort
A07 Réti (1.Nf3 d5 2.g3), King's Indian Attack (Barcza System)
A08 Réti (1.Nf3 d5 2.g3 c5 3.Bg2), King's Indian Attack
A09 Réti (1.Nf3 d5 2.c4)
A10 English (1.c4)
A11 English (1.c4 c6), Caro–Kann defensive system
A12 English (1.c4 c6), Caro–Kann defensive system
A13 English (1.c4 e6)
A14 English (1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7), Neo-Catalan declined
A15 English (1.c4 Nf6), Anglo-Indian Defence
A16 English (1.c4 Nf6 2.Nc3), Anglo-Indian Defence
A17 English (1.c4 Nf6 2.Nc3 e6), Hedgehog Defence
A18 English (1.c4 Nf6 2.Nc3 e6 3.e4), Mikenas–Carls Variation
A19 English (1.c4 Nf6 2.Nc3 e6 3.e4 c5), Mikenas–Carls, Sicilian Variation
A20 English (1.c4 e5)
A21 English (1.c4 e5 2.Nc3)
A22 English (1.c4 e5 2.Nc3 Nf6)
A23 English (1.c4 e5 2.Nc3 Nf6 3.g3 c6), Bremen System, Keres Variation
A24 English (1.c4 e5 2.Nc3 Nf6 3.g3 g6), Bremen System
A25 English (1.c4 e5 2 Nc3 Nc6), Sicilian Reversed
A26 English (1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6), Closed System
A27 English (1.c4 e5 2.Nc3 Nc6 3.Nf3), Three Knights System
A28 English (1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6), Four Knights System
A29 English (1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3), Four Knights, Kingside Fianchetto
A30 English (1.c4 c5), Symmetrical defence
A31 English (1.c4 c5 2.Nf3 Nf6 3.d4), Symmetrical, Benoni formation
A32 English (1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6), Symmetrical
A33 English (1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6), Symmetrical
A34 English (1.c4 c5 2.Nc3), Symmetrical
A35 English (1.c4 c5 2.Nc3 Nc6), Symmetrical
A36 English (1.c4 c5 2.Nc3 Nc6 3.g3), Symmetrical
A37 English (1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3), Symmetrical
A38 English (1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6), Symmetrical
A39 English (1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O (6.d4)), Symmetrical, Main line
A40 Queen's Pawn Game, Mikėnas Defence, Englund Gambit
A41 Queen's Pawn Game, Wade Defence
A42 Modern Defence, Averbakh System also Wade Defence
A43 Old Benoni defence
A44 Old Benoni defence
A45 Queen's Pawn Game Trompowski
A46 Queen's Pawn Game (d4 Nf6 without 2.c4), Torre Attack
A47 Queen's Indian (d4 Nf6 without 2.c4)
A48 King's Indian, East Indian Defence (d4 Nf6 without 2.c4)
A49 King's Indian, Fianchetto without c4
A50 Queen's Pawn Game, 1.d4 d5 2.c4
A51 Budapest Gambit declined
A52 Budapest Gambit
A53 Old Indian, Chigorin Indian Defence
A54 Old Indian, Ukrainian Variation
A55 Old Indian, Main line
A56 Benoni
A57 Benko Gambit
A58 Benko Gambit Accepted
A59 Benko Gambit (7.e4)
A60 Modern Benoni
A61 Modern Benoni
A62 Modern Benoni, Fianchetto Variation without early ...Nbd7
A63 Modern Benoni, Fianchetto Variation, 9...Nbd7
A64 Modern Benoni, Fianchetto Variation, 11...Re8
A65 Modern Benoni (6.e4)
A66 Modern Benoni, Pawn Storm Variation
A67 Modern Benoni, Taimanov Variation
A68 Modern Benoni, Four Pawns Attack
A69 Modern Benoni, Four Pawns Attack, Main line
A70 Modern Benoni, Classical with e4 and Nf3
A71 Modern Benoni, Classical, 8.Bg5
A72 Modern Benoni, Classical without 9.0-0
A73 Modern Benoni, Classical, 9.0-0
A74 Modern Benoni, Classical, 9...a6, 10.a4
A75 Modern Benoni, Classical with ...a6 and 10...Bg4
A76 Modern Benoni, Classical, 9...Re8
A77 Modern Benoni, Classical, 9...Re8, 10.Nd2
A78 Modern Benoni, Classical with ...Re8 and ...Na6
A79 Modern Benoni, Classical, 11.f3
A80 Dutch Defence, Raphael Variation
A81 Dutch Defence 2.g3
A82 Dutch Defence, Staunton Gambit 2.e4
A83 Dutch Defence, Staunton Gambit, Staunton's line 2.e4 fxe4 3.Nc3 Nf6 4.Bg5
A84 Dutch Defence 2.c4 (without 2...Nf6 3.Nc3 (A85), 2...Nf6 3.g3 (A86–A99))
A85 Dutch Defence with 2.c4 Nf6 3.Nc3
A86 Dutch Defence with 2.c4 Nf6 3.g3 (without 3...g6 4.Bg2 Bg7 5.Nf3 (A87) and 3...e6 4.Bg2 (A90–A99))
A87 Dutch Defence, Leningrad, Main Variation 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 (without 5...0-0 6.0-0 d6 7.Nc3 c6 (A88) and 7...Nc6 (A89))
A88 Dutch Defence, Leningrad, Main Variation with 5...0-0 6.0-0 d6 7.Nc3 c6
A89 Dutch Defence, Leningrad, Main Variation with 5...0-0 6.0-0 d6 7.Nc3 Nc6
A90 Dutch Defence 2.c4 Nf6 3.g3 e6 4.Bg2 (without 4...Be7 (A91–A99))
A91 Dutch Defence 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 (without 5.Nf3 (A92–A99))
A92 Dutch Defence 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0 (without 6.0-0 (A93–A99))
A93 Dutch Defence, Stonewall, Botvinnik Variation 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0 6.0-0 d5 7. b3 (without 7...c6 8.Ba3 (A94))
A94 Dutch Defence, Stonewall with 6.0-0 d5.7.b3 c6 8.Ba3
A95 Dutch Defence, Stonewall with 6.0-0 d5.7.Nc3 c6
A96 Dutch Defence, Classical Variation 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0 6.0-0 d6 (without 7.Nc3 Qe8 (A97–A99))
A97 Dutch Defence, Ilyin–Genevsky Variation 7.Nc3 Qe8 (without 8.Qc2 (A98) and 8.b3 (A99))
A98 Dutch Defence, Ilyin–Genevsky Variation with 7.Nc3 Qe8 8.Qc2
A99 Dutch Defence, Ilyin–Genevsky Variation with 7.Nc3 Qe8 8.b3
B00 Irregular King's Pawn
B01 Scandinavian Defence
B02 Alekhine's Defence
B03 Alekhine's Defence 3.d4
B04 Alekhine's Defence, Modern Variation
B05 Alekhine's Defence, Modern Variation, 4...Bg4
B06 Robatsch Modern & Pterodactyl Defence
B07 Pirc Defence
B08 Pirc Defence, Classical (Two Knights) System
B09 Pirc Defence, Austrian attack
B10 Caro-Kann
B11 Caro-Kann, Two knights, 3...Bg4
B12 Caro-Kann
B13 Caro-Kann, Exchange Variation
B14 Caro-Kann, Panov–Botvinnik Attack, 5...e6
B15 Caro-Kann
B16 Caro-Kann, Bronstein–Larsen Variation
B17 Caro-Kann, Steinitz Variation, Smyslov Systems
B18 Caro-Kann, Classical Variation
B19 Caro-Kann, Classical, 7...Nd7
B20 Sicilian, including Smith-Morra Gambit
B21 Sicilian, Grand Prix Attack, Smith-Morra Gambit
B22 Sicilian, Alapin Variation
B23 Sicilian Closed, 2.Nc3 (without 2...a6 3.Nf3 (B28), 2...d6 3.Nf3 (B50), 2...Nc6 3.g3 (B24–B26))
B24 Sicilian Closed, 2.Nc3 Nc6 3.g3 (without 3...g6 (B25–B26))
B25 Sicilian Closed, 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 (without 6.Be3 (B26))
B26 Sicilian Closed, 6.Be3
B27 Sicilian
B28 Sicilian, O'Kelly Variation
B29 Sicilian, Nimzovich–Rubinstein Variation
B30 Sicilian, Old Sicilian
B31 Sicilian, Nimzovich–Rossolimo Attack
B32 Sicilian
B33 Sicilian, Sveshnikov (Lasker–Pelikan) Variation
B34 Sicilian Accelerated Dragon sidelines
B35 Sicilian Accelerated Dragon main line
B36 Sicilian Accelerated Fianchetto, Maroczy bind 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 (without 5...Bg7 (B37–B39))
B37 Sicilian Accelerated Fianchetto, Maroczy bind, 5...Bg7 (without 6.Be3 (B38))
B38 Sicilian Accelerated Fianchetto, Maroczy bind, 5...Bg7 6.Be3 (without 6...Nf6 7.Nc3 Ng4 (B39))
B39 Sicilian Accelerated Fianchetto, Breyer Variation
B40 Sicilian, 2.Nf3 e6, Delayed Alapin variation
B41 Sicilian Kan Variation
B42 Sicilian Kan Variation
B43 Sicilian Kan Variation
B44 Sicilian
B45 Sicilian Taimanov Variation, 5.Nc3
B46 Sicilian Taimanov Variation
B47 Sicilian Taimanov Variation
B48 Sicilian Taimanov Variation
B49 Sicilian Taimanov Variation
B50 Sicilian
B51 Sicilian, Canal–Sokolsky Attack
B52 Sicilian, Canal–Sokolsky Attack, 3...Bd7
B53 Sicilian, Chekhover Variation
B54 Sicilian
B55 Sicilian, Prins Variation, Venice Attack
B56 Sicilian
B57 Sicilian, Sozin (not Scheveningen) including Magnus Smith Trap
B58 Sicilian, Classical
B59 Sicilian, Boleslavsky Variation, 7.Nb3
B60 Sicilian Richter-Rauzer
B61 Sicilian Richter-Rauzer, Larsen Variation, 7.Qd2
B62 Sicilian Richter-Rauzer, 6...e6
B63 Sicilian Richter-Rauzer, Rauzer Attack
B64 Sicilian Richter-Rauzer, Rauzer Attack
B65 Sicilian Richter-Rauzer, Rauzer Attack
B66 Sicilian Richter-Rauzer, Rauzer Attack
B67 Sicilian Richter-Rauzer, Rauzer Attack
B68 Sicilian Richter-Rauzer, Rauzer Attack
B69 Sicilian Richter-Rauzer, Rauzer Attack
B70 Sicilian Dragon
B71 Sicilian Dragon, Levenfish Variation
B72 Sicilian Dragon, 6.Be3
B73 Sicilian Dragon, Classical, 8.0-0
B74 Sicilian Dragon, Classical, 9.Nb3
B75 Sicilian Dragon, Yugoslav Attack
B76 Sicilian Dragon, Yugoslav Attack
B77 Sicilian Dragon, Yugoslav Attack
B78 Sicilian Dragon, Yugoslav Attack
B79 Sicilian Dragon, Yugoslav Attack
B80 Sicilian Scheveningen, English Attack
B81 Sicilian Scheveningen, Keres Attack
B82 Sicilian Scheveningen, 6.f4
B83 Sicilian Scheveningen, 6.Be2
B84 Sicilian Scheveningen (Paulsen), Classical Variation
B85 Sicilian Scheveningen, Classical Variation with ...Qc7 and ...Nc6
B86 Sicilian Sozin Attack
B87 Sicilian Sozin with ...a6 and ...b5
B88 Sicilian Sozin, Leonhardt Variation
B89 Sicilian Sozin, 7.Be3
B90 Sicilian Najdorf
B91 Sicilian Najdorf, Zagreb (Fianchetto) Variation (6.g3)
B92 Sicilian Najdorf, Opocensky Variation (6.Be2)
B93 Sicilian Najdorf, 6.f4
B94 Sicilian Najdorf, 6.Bg5
B95 Sicilian Najdorf, 6...e6
B96 Sicilian Najdorf, 7.f4
B97 Sicilian Najdorf, 7...Qb6 including Poisoned Pawn Variation
B98 Sicilian Najdorf, 7...Be7
B99 Sicilian Najdorf, 7...Be7 Main line
C00 French
C01 French Perseus Gambit
C02 French Advance Variation
C03 French Tarrasch
C04 French Tarrasch, Guimard Main line
C05 French Tarrasch, Closed Variation
C06 French Tarrasch, Closed Variation, Main line
C07 French Tarrasch, Open Variation
C08 French Tarrasch, Open, 4.exd5 exd5
C09 French Tarrasch, Open Variation, Main line
C10 French, Paulsen Variation
C11 French, Burn Variation
C12 French, MacCutcheon Variation
C13 French Alekhine-Chatard Attack, Albin-Chatard Gambit
C14 French Classical
C15 French Winawer (Nimzovich) Variation
C16 French Winawer, Advance Variation
C17 French Winawer, Advance Variation
C18 French Winawer, Advance Variation
C19 French Winawer, Advance, 6...Ne7
C20 King's Pawn Game
C21 Center Game (includes Danish Gambit)
C22 Center Game
C23 Bishop's Opening
C24 Bishop's Opening, Berlin Defence
C25 Vienna Game
C26 Vienna Game, Falkbeer Variation
C27 Vienna Game
C28 Vienna Game
C29 Vienna Gambit, Kaufmann Variation including Würzburger Trap
C30 King's Gambit
C31 King's Gambit Declined, Falkbeer and Nimzowitsch (3...c6) Countergambits
C32 King's Gambit Declined, Falkbeer, 5.dxe4
C33 King's Gambit Accepted
C34 King's Gambit Accepted, including Fischer Defence
C35 King's Gambit Accepted, Cunningham Defence
C36 King's Gambit Accepted, Abbazia Defence (Classical Defence, Modern Defence)
C37 King's Gambit Accepted, Quaade Gambit
C38 King's Gambit Accepted
C39 King's Gambit Accepted, Allgaier and Kieseritsky Gambits including Rice Gambit
C40 Irregular King's Knight
C41 Philidor Defence
C42 Petrov's Defence, including Marshall Trap
C43 Petrov's Defence, Modern (Steinitz) Attack
C44 King's Knight/Ponziani/Scotch/Göring
C45 Scotch Game
C46 Three Knights including Halloween Gambit
C47 Four Knights
C48 Four Knights, Spanish Variation
C49 Four Knights, Double Ruy Lopez
C50 Italian Game
C51 Evans Gambit
C52 Evans Gambit with 4...Bxb4 5.c3 Ba5
C53 Giuoco Piano
C54 Giuoco Piano
C55 Two Knights Defence
C56 Two Knights Defence
C57 Two Knights Defence, including the Fried Liver Attack
C58 Two Knights Defence
C59 Two Knights Defence
C60 Spanish - Ruy Lopez, Unusual Black 3rd moves and 3...g6
C61 Spanish - Ruy Lopez, Bird's Defence
C62 Spanish - Ruy Lopez, Old Steinitz Defence
C63 Spanish - Ruy Lopez, Schliemann Defence
C64 Spanish - Ruy Lopez, Classical (Cordel) Defence
C65 Spanish - Ruy Lopez, Berlin Defence, including Mortimer Trap
C66 Spanish - Ruy Lopez, Berlin Defence, 4.0-0 d6
C67 Spanish - Ruy Lopez, Berlin Defence, Open Variation
C68 Spanish - Ruy Lopez, Exchange Variation
C69 Spanish - Ruy Lopez, Exchange Variation, 5.0-0
C70 Spanish - Ruy Lopez
C71 Spanish - Ruy Lopez, Modern Steinitz Defence including Noah's Ark Trap
C72 Spanish - Ruy Lopez, Modern Steinitz Defence 5.0-0
C73 Spanish - Ruy Lopez, Modern Steinitz Defence, Richter Variation
C74 Spanish - Ruy Lopez, Modern Steinitz Defence
C75 Spanish - Ruy Lopez, Modern Steinitz Defence
C76 Spanish - Ruy Lopez, Modern Steinitz Defence, Fianchetto (Bronstein) Variation
C77 Spanish - Ruy Lopez, Morphy Defence
C78 Spanish - Ruy Lopez, 5.0-0
C79 Spanish - Ruy Lopez, Steinitz Defence Deferred (Russian Defence)
C80 Spanish - Ruy Lopez, Open (Tarrasch) Defence
C81 Spanish - Ruy Lopez, Open, Howell Attack
C82 Spanish - Ruy Lopez, Open, 9.c3
C83 Spanish - Ruy Lopez, Open, Classical Defence
C84 Spanish - Ruy Lopez, Closed
C85 Spanish - Ruy Lopez, Exchange Variation Doubly Deferred (DERLD)
C86 Spanish - Ruy Lopez, Worrall Attack
C87 Spanish - Ruy Lopez, Closed, Averbakh Variation
C88 Spanish - Ruy Lopez, Closed
C89 Spanish - Ruy Lopez, Marshall Counterattack
C90 Spanish - Ruy Lopez, Closed, 7...d6
C91 Spanish - Ruy Lopez, Closed, 9.d4
C92 Spanish - Ruy Lopez, Closed, 9.h3
C93 Spanish - Ruy Lopez, Closed, Smyslov Defence
C94 Spanish - Ruy Lopez, Closed, Breyer Defence, 10.d3
C95 Spanish - Ruy Lopez, Closed, Breyer Defence, 10.d4
C96 Spanish - Ruy Lopez, Closed, 8...Na5
C97 Spanish - Ruy Lopez, Closed, Chigorin Defence
C98 Spanish - Ruy Lopez, Closed, Chigorin, 12...Nc6
C99 Spanish - Ruy Lopez, Closed, Chigorin, 12...cxd4
D00 Queen's Pawn Game (including Blackmar–Diemer Gambit, Halosar Trap and others)
D01 Richter–Veresov Attack
D02 Queen's Pawn Game, 2.Nf3 (including the London System)
D03 Torre Attack, Tartakower Variation
D04 Queen's Pawn Game, Colle System
D05 Queen's Pawn Game, Zukertort Variation (including Colle system)
D06 Queen's Gambit Declined (including the Baltic Defence, Marshall Defence and Symmetrical Defence)
D07 Queen's Gambit Declined Chigorin Defense
D08 Queen's Gambit Declined Albin Counter Gambit and Lasker Trap
D09 Queen's Gambit Declined Albin Counter Gambit, 5.g3
D10 Queen's Gambit Declined Slav Defence
D11 Queen's Gambit Declined Slav Defence, 3.Nf3
D12 Queen's Gambit Declined Slav Defence, 4.e3 Bf5
D13 Queen's Gambit Declined Slav Defence, Exchange Variation
D14 Queen's Gambit Declined Slav Defence, Exchange Variation
D15 Queen's Gambit Declined Slav Defence, 4.Nc3
D16 Queen's Gambit Declined Slav accepted, Alapin Variation
D17 Queen's Gambit Declined Slav Defence, Czech Defence
D18 Queen's Gambit Declined Dutch Variation
D19 Queen's Gambit Declined Dutch Variation
D20 Queen's Gambit Accepted
D21 Queen's Gambit Accepted, 3.Nf3
D22 Queen's Gambit Accepted, Alekhine Defence
D23 Queen's Gambit Accepted
D24 Queen's Gambit Accepted, 4.Nc3
D25 Queen's Gambit Accepted, 4.e3
D26 Queen's Gambit Accepted, Classical Variation
D27 Queen's Gambit Accepted, Classical Variation
D28 Queen's Gambit Accepted, Classical Variation 7.Qe2
D29 Queen's Gambit Accepted, Classical Variation 8...Bb7
D30 Queen's Gambit Declined, Orthodox Defence
D31 Queen's Gambit Declined, 3.Nc3, Noteboom Variation
D32 Queen's Gambit Declined Tarrasch
D33 Queen's Gambit Declined Tarrasch, Schlechter–Rubinstein System
D34 Queen's Gambit Declined Tarrasch, 7...Be7
D35 Queen's Gambit Declined, Exchange Variation
D36 Queen's Gambit Declined, Exchange, positional line, 6.Qc2
D37 Queen's Gambit Declined, 4.Nf3
D38 Queen's Gambit Declined Ragozin
D39 Queen's Gambit Declined Ragozin, Vienna Variation
D40 Queen's Gambit Declined Semi-Tarrasch
D41 Queen's Gambit Declined Semi-Tarrasch, 5.cxd5
D42 Queen's Gambit Declined Semi-Tarrasch, 7.Bd3
D43 Queen's Gambit Declined Semi-Slav
D44 Queen's Gambit Declined Semi-Slav, 5.Bg5 dxc4
D45 Queen's Gambit Declined Semi-Slav, 5.e3
D46 Queen's Gambit Declined Semi-Slav, 6.Bd3
D47 Queen's Gambit Declined Semi-Slav, 7.Bc4
D48 Queen's Gambit Declined Meran, 8...a6
D49 Queen's Gambit Declined Meran, 11.Nxb5
D50 Queen's Gambit Declined, 4.Bg5
D51 Queen's Gambit Declined, 4.Bg5 Nbd7 (Cambridge Springs Defence and Elephant Trap)
D52 Queen's Gambit Declined
D53 Queen's Gambit Declined, 4.Bg5 Be7
D54 Queen's Gambit Declined, Anti-neo-Orthodox Variation
D55 Queen's Gambit Declined, 6.Nf3
D56 Queen's Gambit Declined Lasker Defense
D57 Queen's Gambit Declined Lasker Defense, Main line
D58 Queen's Gambit Declined Tartakower (Tartakower–Makogonov–Bondarevsky) System
D59 Queen's Gambit Declined Tartakower (Tartakower–Makogonov–Bondarevsky) System, 8.cxd5 Nxd5
D60 Queen's Gambit Declined Orthodox
D61 Queen's Gambit Declined Orthodox, Rubinstein Variation
D62 Queen's Gambit Declined Orthodox, 7.Qc2 c5, 8.cxd5 (Rubinstein)
D63 Queen's Gambit Declined Orthodox, 7.Rc1
D64 Queen's Gambit Declined Orthodox, Rubinstein Attack (with Rc1)
D65 Queen's Gambit Declined Orthodox, Rubinstein Attack, Main line
D66 Queen's Gambit Declined Orthodox, Bd3 line including Rubinstein Trap
D67 Queen's Gambit Declined Orthodox, Bd3 line, Capablanca freeing manoeuvre
D68 Queen's Gambit Declined Orthodox, Classical Variation
D69 Queen's Gambit Declined Orthodoxe, Classical, 13.dxe5
D70 Neo-Grünfeld
D71 Neo-Grünfeld, 5.cxd5
D72 Neo-Grünfeld, 5.cxd5, Main line
D73 Neo-Grünfeld, 5.Nf3
D74 Neo-Grünfeld, 6.cxd5 Nxd5, 7.0-0
D75 Neo-Grünfeld, 6.cxd5 Nxd5, 7.0-0 c5, 8.Nc3
D76 Neo-Grünfeld, 6.cxd5 Nxd5, 7.0-0 Nb6
D77 Neo-Grünfeld, 6.0-0
D78 Neo-Grünfeld, 6.0-0 c6
D79 Neo-Grünfeld, 6.0-0, Main line
D80 Grünfeld
D81 Grünfeld, Russian Variation
D82 Grünfeld, 4.Bf4
D83 Grünfeld Gambit
D84 Grünfeld, Gambit accepted
D85 Grünfeld, Nadanian Variation
D86 Grünfeld, Exchange, Classical Variation
D87 Grünfeld, Exchange, Spassky Variation
D88 Grünfeld, Spassky Variation, Main line, 10...cxd4, 11.cxd4
D89 Grünfeld, Spassky Variation, Main line, 13.Bd3
D90 Grünfeld, Three Knights Variation
D91 Grünfeld, Three Knights Variation
D92 Grünfeld, 5.Bf4
D93 Grünfeld with 5.Bf4 0-0 6.e3
D94 Grünfeld, 5.e3
D95 Grünfeld with 5.e3 0-0 6.Qb3
D96 Grünfeld, Russian Variation
D97 Grünfeld, Russian Variation with 7.e4
D98 Grünfeld, Russian, Smyslov Variation
D99 Grünfeld, Smyslov, Main line
E00 Queen's Pawn Game (including Neo-Indian Attack, Trompowsky Attack, Catalan Opening and others)
E01 Catalan, Closed
E02 Catalan, Open, 5.Qa4
E03 Catalan, Open, Alekhine Variation
E04 Catalan, Open, 5.Nf3
E05 Catalan, Open, Classical line
E06 Catalan, Closed, 5.Nf3
E07 Catalan, Closed, 6...Nbd7
E08 Catalan, Closed, 7.Qc2
E09 Catalan, Closed, Main line
E10 Blumenfeld/Irregular Indian, Anti-Nimzo-Indian
E11 Bogo-Indian Defense
E12 Queen's Indian
E13 Queen's Indian, 4.Nc3, Main line
E14 Queen's Indian, 4.e3
E15 Queen's Indian, 4.g3
E16 Queen's Indian, Capablanca Variation
E17 Queen's Indian, 5.Bg2 Be7
E18 Queen's Indian, Old Main line, 7.Nc3
E19 Queen's Indian, Old Main line, 9.Qxc3
E20 Nimzo-Indian
E21 Nimzo-Indian, Three Knights Variation
E22 Nimzo-Indian, Spielmann Variation
E23 Nimzo-Indian, Spielmann, 4...c5, 5.dxc5 Nc6
E24 Nimzo-Indian, Sämisch Variation
E25 Nimzo-Indian, Sämisch Variation, Keres Variation
E26 Nimzo-Indian, Sämisch Variation, 4.a3 Bxc3+ 5.bxc3 c5 6.e3
E27 Nimzo-Indian, Sämisch Variation, 5...0-0
E28 Nimzo-Indian, Sämisch Variation, 6.e3
E29 Nimzo-Indian, Sämisch Variation, Main line
E30 Nimzo-Indian, Leningrad Variation
E31 Nimzo-Indian, Leningrad Variation, Main line
E32 Nimzo-Indian, Classical Variation, 4.Qc2
E33 Nimzo-Indian, Classical Variation, 4...Nc6
E34 Nimzo-Indian, Classical, Noa Variation, 4...d5
E35 Nimzo-Indian, Classical, Noa Variation, 5.cxd5 exd5
E36 Nimzo-Indian, Classical, Noa Variation, 5.a3
E37 Nimzo-Indian, Classical, Noa Variation, Main line, 7.Qc2
E38 Nimzo-Indian, Classical, 4...c5
E39 Nimzo-Indian, Classical, Pirc Variation
E40 Nimzo-Indian, 4.e3
E41 Nimzo-Indian, 4.e3 c5
E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)
E43 Nimzo-Indian, Fischer Variation
E44 Nimzo-Indian, Fischer Variation, 5.Ne2
E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation
E46 Nimzo-Indian, 4.e3 0-0
E47 Nimzo-Indian, 4.e3 0-0, 5.Bd3
E48 Nimzo-Indian, 4.e3 0-0, 5.Bd3 d5
E49 Nimzo-Indian, 4.e3, Botvinnik System
E50 Nimzo-Indian, 4.e3 0-0, 5.Nf3, without ...d5
E51 Nimzo-Indian, 4.e3 0-0, 5.Nf3 d5
E52 Nimzo-Indian, 4.e3, Main line with ...b6
E53 Nimzo-Indian, 4.e3, Main line with ...c5
E54 Nimzo-Indian, 4.e3, Gligoric System with 7...dxc4
E55 Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation
E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6
E57 Nimzo-Indian, 4.e3, Main line with 8...dxc4 and 9...Bxc4 cxd4
E58 Nimzo-Indian, 4.e3, Main line with 8...Bxc3
E59 Nimzo-Indian, 4.e3, Main line
E60 King's Indian
E61 King's Indian, 3.Nc3
E62 King's Indian, Fianchetto Variation
E63 King's Indian, Fianchetto, Panno Variation
E64 King's Indian, Fianchetto, Yugoslav System
E65 King's Indian, Yugoslav, 7.0-0
E66 King's Indian, Fianchetto, Yugoslav Panno
E67 King's Indian, Fianchetto with ...Nd7
E68 King's Indian, Fianchetto, Classical Variation, 8.e4
E69 King's Indian, Fianchetto, Classical Main line
E70 King's Indian, Accelerated Averbakh Variation
E71 King's Indian, Makogonov System (5.h3)
E72 King's Indian with e4 and g3
E73 King's Indian, Averbakh, 5.Be2
E74 King's Indian, Averbakh, 6...c5
E75 King's Indian, Averbakh, Main line
E76 King's Indian, Four Pawns Attack
E77 King's Indian, Four Pawns Attack, 6.Be2
E78 King's Indian, Four Pawns Attack, with Be2 and Nf3
E79 King's Indian, Four Pawns Attack, Main line
E80 King's Indian, Sämisch Variation
E81 King's Indian, Sämisch, 5...0-0
E82 King's Indian, Sämisch, Double Fianchetto Variation
E83 King's Indian, Sämisch, 6...Nc6 (Panno Variation)
E84 King's Indian, Sämisch, Panno Main line
E85 King's Indian, Sämisch, Orthodox Variation
E86 King's Indian, Sämisch, Orthodox, 7.Nge2 c6
E87 King's Indian, Sämisch, Orthodox, 7.d5
E88 King's Indian, Sämisch, Orthodox, 7.d5 c6
E89 King's Indian, Sämisch, Orthodox Main line
E90 King's Indian, 5.Nf3
E91 King's Indian, 6.Be2
E92 King's Indian, Classical Variation
E93 King's Indian, Petrosian System, Main line
E94 King's Indian, Orthodox Variation
E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1
E96 King's Indian, Orthodox, 7...Nbd7, Main line
E97 King's Indian, Orthodox, Aronin–Taimanov Variation (Yugoslav Attack / Mar del Plata Variation)
E98 King's Indian, Orthodox, Aronin–Taimanov, 9.Ne1
E99 King's Indian, Orthodox, Aronin–Taimanov, Main
