Encyclopedia of Chess Opening


  • White first moves other than 1.e4, 1.d4 (A00-A39)
  • 1.d4 without 1...d5 or 1...Nf6: Atypical replies to 1.d4 (A40-A44)
  • 1.d4 Nf6 without 2.c4: Atypical replies to 1...Nf6 (A45-A49)
  • 1.d4 Nf6 2.c4 without 2...e6 or 2...g6: Atypical Indian systems (A50-A79)
  • 1.d4 f5: Dutch Defence (A80-A99)


White first moves other than 1.e4, 1.d4:
  • A01 Larsen's Opening, 1. b3 (Owen's Opening) (Greek Attack)
  • A02 Bird's Opening, 1. f4 (Dutch Attack)
  • A03 Bird's Opening, 1...d5
  • A04 Réti Opening, 1. Nf3
  • A05 Réti Opening, 2...Nf6
  • A06 Réti Opening, 2...d5
  • A07 Réti Opening, King's Indian Attack (Barcza System)
  • A08 Réti Opening, King's Indian Attack
  • A09 Réti Opening, 2...d5 3.c4
  • A10 English Opening: 1. c4
  • A11 English, Caro-Kann defensive system
  • A12 English, Caro-Kann defensive system
  • A13 English Opening
  • A14 English, Neo-Catalan declined
  • A15 English, 1...Nf6 (Anglo-Indian defence)
  • A16 English Opening
  • A17 English Opening, Hedgehog Defence
  • A18 English, Mikenas-Carls Variation
  • A19 English, Mikenas-Carls, Sicilian Variation
  • A20 English Opening
  • A21 English Opening
  • A22 English Opening
  • A23 English Opening, Bremen System, Keres Variation
  • A24 English Opening, Bremen System with 3...g6
  • A25 English Opening, Sicilian Reversed
  • A26 English Opening, Closed System
  • A27 English Opening, Three knights system
  • A28 English Opening, Four knights system
  • A29 English Opening, Four knights, kingside Fianchetto
  • A30 English Opening, Symmetrical Variation
  • A31 English Opening, Symmetrical, Benoni formation
  • A32 English Opening, Symmetrical
  • A33 English Opening, Symmetrical
  • A34 English Opening, Symmetrical
  • A35 English Opening, Symmetrical
  • A36 English Opening, Symmetrical
  • A37 English Opening, Symmetrical
  • A38 English Opening, Symmetrical
  • A39 English Opening, Symmetrical, Main line with d4


1.d4 without 1...d5 or 1...Nf6: Atypical replies to 1.d4 (A40-A44)


1.d4 Nf6 without 2.c4: Atypical replies to 1...Nf6 (A45-A49)


1.d4 Nf6 2.c4 without 2...e6 or 2...g6: Atypical Indian systems (A50-A79)


1.d4 f5: Dutch Defence (A80-A99)
  • A80 Dutch Defence
  • A81 Dutch Defence
  • A82 Dutch, Staunton Gambit, also includes Balogh Defence
  • A83 Dutch, Staunton Gambit, Staunton's line
  • A84 Dutch defence
  • A85 Dutch with 2.c4 & 3.Nc3
  • A86 Dutch with 2.c4 & 3.g3
  • A87 Dutch, Leningrad, Main Variation
  • A88 Dutch, Leningrad, Main Variation with 7...c6
  • A89 Dutch, Leningrad, Main Variation with Nc6
  • A90 Dutch Defence
  • A91 Dutch Defence
  • A92 Dutch Defence
  • A93 Dutch, Stonewall, Botvinnik Variation
  • A94 Dutch, Stonewall with Ba3
  • A95 Dutch, Stonewall with Nc3
  • A96 Dutch, Classical Variation
  • A97 Dutch, Ilyin-Genevsky Variation
  • A98 Dutch, Ilyin-Genevsky Variation with Qc2
  • A99 Dutch, Ilyin-Genevsky Variation with b3


  • 1.e4 without 1...c5, 1...e6 or 1...e5 (B00-B19)
  • 1.e4 c5: Sicilian Defence (B20-B99)


1.e4 without 1...c5, 1...e6 or 1...e5 (B00-B19)


1.e4 c5: Sicilian Defence (B20-B99)



1.e4 e6: French Defence (C00-C19)
  • C00 French Defence
  • C01 French, Exchange Variation, Kingston Defence
  • 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 Defence
  • C12 French, MacCutcheon Variation
  • C13 French, Classical
  • C14 French, Classical Variation
  • 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


1.e4 e5: Open Game (C20-C99)



1.d4 d5: Closed Game (D00-D69)
  • D00 Queen's Pawn Game (including Blackmar-Diemer GambitHalosar Trap and others)
  • D01 Richter-Veresov Attack
  • D02 Queen's Pawn Game, 2. Nf3
  • D03 Torre Attack, Tartakower Variation
  • D04 Queen's Pawn Game
  • D05 Queen's Pawn Game, Zukertort Variation (including Colle system)
  • D06 Queen's Gambit (including the Baltic DefenceMarshall Defence and Symmetrical Defence)
  • D07 QGD; Chigorin Defence
  • D08 QGD; Albin Countergambit and Lasker Trap
  • D09 QGD; Albin Countergambit, 5.g3
  • D10 QGD; Slav Defence
  • D11 QGD; Slav Defence, 3.Nf3
  • D12 QGD; Slav Defence, 4.e3 Bf5
  • D13 QGD; Slav Defence, Exchange Variation
  • D14 QGD; Slav Defence, Exchange Variation
  • D15 QGD; Slav, 4.Nc3
  • D16 QGD; Slav accepted, Alapin Variation
  • D17 QGD; Slav Defence, Czech Defence
  • D18 QGD; Dutch Variation
  • D19 QGD; Dutch Variation
  • D20 Queen's Gambit Accepted
  • D21 QGA, 3.Nf3
  • D22 QGA; Alekhine Defence
  • D23 Queen's Gambit Accepted
  • D24 QGA, 4.Nc3
  • D25 QGA, 4.e3
  • D26 QGA; Classical Variation
  • D27 QGA; classical Variation
  • D28 QGA; Classical Variation 7.Qe2
  • D29 QGA; Classical Variation 8...Bb7
  • D30 Queen's Gambit Declined: Orthodox Defence
  • D31 QGD, 3.Nc3
  • D32 QGD; Tarrasch Defence
  • D33 QGD; Tarrasch, Schlechter-Rubinstein System
  • D34 QGD; Tarrasch, 7...Be7
  • D35 QGD; Exchange Variation
  • D36 QGD; Exchange, positional line, 6.Qc2
  • D37 QGD; 4.Nf3
  • D38 QGD; Ragozin Variation
  • D39 QGD; Ragozin, Vienna variation
  • D40 QGD; Semi-Tarrasch defence
  • D41 QGD; Semi-Tarrasch, 5.cxd5
  • D42 QGD; Semi-Tarrasch, 7.Bd3
  • D43 QGD; Semi-Slav Defence
  • D44 QGD; Semi-Slav 5.Bg5 dxc4
  • D45 QGD; Semi-Slav 5.e3
  • D46 QGD; Semi-Slav 6.Bd3
  • D47 QGD; Semi-Slav 7.Bc4
  • D48 QGD; Meran, 8...a6
  • D49 QGD; Meran, 11.Nxb5
  • D50 QGD; 4.Bg5
  • D51 QGD; 4.Bg5 Nbd7 (Cambridge Springs Defence and Elephant Trap)
  • D52 QGD
  • D53 QGD; 4.Bg5 Be7
  • D54 QGD; Anti-neo-Orthodox Variation
  • D55 QGD; 6.Nf3
  • D56 QGD; Lasker Defence
  • D57 QGD; Lasker Defence, Main line
  • D58 QGD; Tartakower (Makogonov-Bondarevsky) System
  • D59 QGD; Tartakower (Makogonov-Bondarevsky) System, 8.cxd5 Nxd5
  • D60 QGD; Orthodox Defence
  • D61 QGD; Orthodox Defence, Rubinstein Variation
  • D62 QGD; Orthodox Defence, 7.Qc2 c5, 8.cxd5 (Rubinstein)
  • D63 QGD; Orthodox Defence, 7.Rc1
  • D64 QGD; Orthodox Defence, Rubinstein Attack (with Rc1)
  • D65 QGD; Orthodox Defence, Rubinstein Attack, main line
  • D66 QGD; Orthodox Defence, Bd3 line including Rubinstein Trap
  • D67 QGD; Orthodox Defence, Bd3 line, Capablanca freeing manoeuvre
  • D68 QGD; Orthodox Defence, Classical Variation
  • D69 QGD; Orthodox Defence, Classical, 13.dxe5


1.d4 Nf6 2.c4 g6 with 3...d5: Grünfeld Defence (D70-D99)
  • D70 Neo-Grünfeld Defence
  • D71 Neo-Grünfeld, 5.cxd5
  • D72 Neo-Grünfeld, 5.cxd5, Main line
  • D73 Neo-Grünfeld, 5.Nf3
  • D74 Neo-Grünfeld, 6.cxd5 Nxd5, 7.O-O
  • D75 Neo-Grünfeld, 6.cxd5 Nxd5, 7.O-O c5, 8.Nc3
  • D76 Neo-Grünfeld, 6.cxd5 Nxd5, 7.O-O Nb6
  • D77 Neo-Grünfeld, 6.O-O
  • D78 Neo-Grünfeld, 6.O-O c6
  • D79 Neo-Grünfeld, 6.O-O, Main line
  • D80 Grünfeld Defence
  • 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 O-O 6.e3
  • D94 Grünfeld, 5.e3
  • D95 Grünfeld with 5.e3 O-O 6.Qb3
  • D96 Grünfeld, Russian Variation
  • D97 Grünfeld, Russian Variation with 7.e4
  • D98 Grünfeld, Russian, Smyslov Variation
  • D99 Grünfeld Defence, Smyslov, Main line


  • 1.d4 Nf6 2.c4 e6: Indian systems with ...e6 (E00-E59)
  • 1.d4 Nf6 2.c4 g6 without 3...d5: Indian systems with ...g6 (except Grünfeld) (E60-E99)


1.d4 Nf6 2.c4 e6: Indian systems with ...e6 (E00-E59)
  • E00 Queen's Pawn Game (including Neo-Indian AttackTrompowski AttackCatalan 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 Queen's Pawn Game 3.Nf3
  • E11 Bogo-Indian Defence
  • E12 Queen's Indian Defence
  • 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 Defence
  • E21 Nimzo-Indian, Three knights variation
  • E22 Nimzo-Indian, Spielmann Variation
  • E23 Nimzo-Indian, Spielmann, 4...c5, 5.dxc5 Nc6
  • E24 Nimzo-Indian, Saemisch Variation
  • E25 Nimzo-Indian, Saemisch Variation, Keres Variation
  • E26 Nimzo-Indian, Saemisch Variation, 4.a3 Bxc3+ 5.bxc3 c5 6.e3
  • E27 Nimzo-Indian, Saemisch Variation, 5...0-0
  • E28 Nimzo-Indian, Saemisch Variation, 6.e3
  • E29 Nimzo-Indian, Saemisch Variation, Main line
  • E30 Nimzo-Indian, Leningrad Variation,
  • E31 Nimzo-Indian, Leningrad Variation, main line
  • E32 Nimzo-Indian, Classical Variation
  • E33 Nimzo-Indian, Classical Variation, 4...Nc6
  • E34 Nimzo-Indian, Classical, Noa Variation
  • 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 O-O
  • E47 Nimzo-Indian, 4.e3 O-O, 5.Bd3
  • E48 Nimzo-Indian, 4.e3 O-O, 5.Bd3 d5
  • E49 Nimzo-Indian, 4.e3, Botvinnik System
  • E50 Nimzo-Indian, 4.e3 O-O, 5.Nf3, without ...d5
  • E51 Nimzo-Indian, 4.e3 O-O, 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


1.d4 Nf6 2.c4 g6 without 3...d5: Indian systems with ...g6 (except Grünfeld) (E60-E99)
  • E60 King's Indian Defence
  • E61 King's Indian Defence, 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.O-O
  • 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, 4.e4
  • E71 King's Indian, Makogonov System (5.h3)
  • E72 King's Indian with e4 & g3
  • E73 King's Indian, 5.Be2
  • E74 King's Indian, Averbakh, 6...c5
  • E75 King's Indian, Averbakh, Main line
  • E76 King's Indian Defence, 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...O-O
  • E82 King's Indian, Sämisch, double Fianchetto Variation
  • E83 King's Indian, Sämisch, 6...Nc6
  • 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