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All Chess Openings in chess

In this Forum
I am going to cover all the chess openings names :D :D :D :)

All chess Openings:
White first moves other than 1.e4, 1.d4 (A00–A39)
1.d4 without 1...d5, 1...Nf6 or 1...f5: 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)
A00–A39
White first moves other than 1.e4, 1.d4:

A00 Irregular Openings
Anderssen's Opening: 1.a3
Anderssen's Opening, Polish Gambit: 1...a5 2.b4
Bugayev Attack 2...e5
Anderssen's Opening, Creepy Crawly Formation: 1...e5 2.h3 d5
Anderssen's Opening, Andersspike: 1...g6 2.g4
Ware Opening: 1.a4
Ware Opening, Wing Gambit: 1...b5 2.axb5 Bb7
Ware Opening, Ware Gambit: 1...e5 2.a5 d5 3.e3 f5 4.a6
Ware Opening, Crab Variation: 1...e5 2.h4
Sodium Attack: 1.Na3
Sodium Attack, Durkin Gambit: 1...e5 2.Nc4 Nc6 3. e4 f5
Sokolsky Opening: 1.b4
Sokolsky Opening, Birmingham Gambit: 1...c5
Sokolsky Opening, Outflank Variation: 1...c6
Sokolsky Opening, Schuhler Gambit: 1...c6 2.Bb2 a5 3.b5 cxb5 4.e4
Sokolsky Opening, Myers Variation: 1...d5 2.Bb2 c6 3.a4
Sokolsky Opening, Bugayev Attack: 1...e5 2.a3
Sokolsky Opening, Wolferts Gambit: 1...e5 2.Bb2 c5
Saragossa Opening: 1.c3
Van Geet Opening: 1.Nc3
Van 't Kruijs Opening: 1.e3
Mieses Opening: 1.d3
Barnes Opening: 1.f3
Barnes Opening, Hammerschlag Variation: 1...e5 2.Kf2
Benko's Opening: 1.g3
Myers Defense 1...g5 [1]
Grob's Attack: 1.g4
Coca-Cola Gambit:1...g5 2.f4
Alessi Gambit: 1...f5
Clemenz Opening: 1.h3
Desprez Opening: 1.h4
Amar Opening: 1.Nh3
A01 Larsen's Opening: 1.b3
Modern variation: 1...e5
Classical variation: 1...d5
Indian variation: 1...Nf6
Symmetrical variation: 1...b6
English variation: 1...c5
Polish variation: 1...b5
Dutch variation: 1...f5
A02 Bird's Opening: 1.f4 (Dutch Attack, without: 1...d5, 1...g6 2.e4, 1...Nf6 2.d4, 1...e5 2.e4, 1...c5 2.e4, 1...d6 2.e4)
From Gambit: 1...e5 (without: 2.e4)
Symmetrical variation: 1...f5
A03 Bird's Opening: 1...d5 (without: 2.d4)
Mujannah-Sturm Gambit: 2.c4
Lasker variation: 2.e3
Williams Gambit: 2.e4
A04 Réti Opening: 1.Nf3 (without: 1...Nf6, 1...d5, 1...c6 2.c4, 1...c6 2.d4, 1...c6 2.e4, 1...c6 2.g3 d5, 1...f5 2.c4, 1...f5 2.d4, 1...f5 2.e4 e5, 1...g6 2.c4, 1...g6 2.d4, 1...c5 2.c4, 1...c5 2.e4, 1...Nc6 2.e4, 1...e6 2.c4, 1...e6 2.d4, 1...e6 2.e4, 1...d6 2.c4, 1...d6 2.d4, 1...d6 2.e4, 1...b6 2.c4, 1...e5 2.e4, 1...a6 2.e4 e5)
A05 Réti Opening: 1...Nf6 (without: 2.c4, 2.d4, 2.Nc3, 2.g3 d5 2.d3 d5)
Santassiere's Folly: 2.b4
Nimzo-Larsen Attack: 2.b3
A06 Réti Opening: 1...d5
A07 Réti Opening, King's Indian Attack (Barcza System): 1...d5 2.g3
Keres variation: 2...Bg4
Yugoslav variation: 2...c6
A08 Réti Opening, King's Indian Attack: 1...d5 2.g3 c5 3.Bg2
A09 Réti Opening: 1...d5 2.c4 (without: 2...c6, 2...e6)
Advance variation: 2...d4
Accepted: 2...dxc4
A10 English Opening: 1.c4 (without: 1...e5, 1...c5, 1...e6, 1...c6, 1...Nf6, 1...g6 2.d4, 1...f5 2.d4, 1...b6 2.d4, 1...d6 2.e4, 1...d6 2.d4, 1...Nc6 2.d4)
English Anglo-Dutch: 1...f5
English Vector: 1...d5
English, Jaenisch Gambit: 1...b5
A11 English, Caro–Kann defensive system, 1...c6 (without: 2.e4, 2.d4)
A12 English, Caro–Kann defensive system, 1...c6 2.Nf3 d5 3.b3
English Bogoljubov variation: 3...Bg4
English London Defence: 3...Nf6 4.g3 Bf5
A13 English Opening: 1...e6 (without: 2.e4, 2.d4)
A14 English, Neo-Catalan declined: 1...e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7
A15 English, Anglo-Indian Defence: 1...Nf6 (without: 2.Nc3, 2.d4, 2.g3 c6, 2.g3 e5, 2.Nf3 c5, 2.Nf3 e6, 2.Nf3 c6)
A16 English Opening, Anglo-Indian Defence: 1...Nf6 2.Nc3 (without: 2...c5, 2...e5, 2...e6)
Anglo-Grünfeld: 2...d5
A17 English Opening, Hedgehog Defence, 1...Nf6 2.Nc3 e6 (without: 3.e4, 3.d4, 3.Nf3 c5, 3...d5 4.d4, 3...b5 4.d4, 3...Bb4 4.d4)
A18 English, Mikenas–Carls Variation: 1...Nf6 2.Nc3 e6 3.e4 (without: 3...c5)
A19 English, Mikenas–Carls, Sicilian Variation: 1...Nf6 2.Nc3 e6 3.e4 c5
A20 English Opening: 1...e5 (without: 2.e4, 2.Nc3, 2.Nf3 Nc6 3.Nc3, 2.Nf3 Nf6 3.Nc3, 2.Nf3 d6 3.Nc3)
A21 English Opening: 1...e5 2.Nc3 (without: 2...Nf6, 2...Nc6, 2...Bb4 3.g3 Nf6, 2...Bb4 3.Nf3 Nc6 2...Bb4 3.e3 Nf6)
A22 English Opening: 1...e5 2.Nc3 Nf6 (without: 3.Nf3 Nc6, 3.e3 Nc6, 3.g3 Nc6, 3.g3 c6, 3.g3 g6, 3.e4 Nc6 4.Nf3)
A23 English Opening, Bremen System, Keres Variation: 1...e5 2.Nc3 Nf6 3.g3 c6
A24 English Opening, Bremen System with 1...e5 2.Nc3 Nf6 3.g3 g6 (without: 4.Bg2 Bg7 5.d3 d6)
A25 English Opening, Sicilian Reversed: 1...e5 2 Nc3 Nc6 (without 3.Nf3, 3.g3 Nf6 4.Nf3, 3.e3 Nf6 4.Nf3)
A26 English Opening, Closed System; 1...e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6
Botvinnik System: 6.e4
A27 English Opening, Three Knights System: 1...e5 2.Nc3 Nc6 3.Nf3 (without: 3...Nf6)
A28 English Opening, Four Knights System: 1...e5 2.Nc3 Nc6 3.Nf3 Nf6 (without 4.g3)
A29 English Opening, Four Knights, Kingside Fianchetto: 1...e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3
A30 English Opening, Symmetrical defence: 1.c4 c5 (without: 2.Nc3, 2.e4, 2.g3 g6 3.Nc3, 2.g3 Nc6 3.Nc3, 2.Nf3 Nc6 3.Nc3, 2.e3 Nf6 4.d4)
A31 English Opening, Symmetrical, Benoni formation: 1...c5 2.Nf3 Nf6 3.d4 (without: 3...cxd4 4.Nxd4 e6, 3...cxd4 4.Nxd4 a6 5.Nc3 e6, 3...cxd4 4.Nxd4 Nc6 5.Nc3 e6)
A32 English Opening, Symmetrical: 1...c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 (without: 5.Nc3 Nc6)
A33 English Opening, Symmetrical: 1...c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6
Geller variation: 6.g3 Qb6
A34 English Opening, Symmetrical: 1...c5 2.Nc3 (without 2...Nc6, 2...Nf6 3.Nf3 Nc6, 2...Nf6 3.e4 e6, 2...e6 3.Nf3 Nf6, 4.g3 Nc6)
A35 English Opening, Symmetrical: 1...c5 2.Nc3 Nc6 (without 3.g3, 3.e4, 3.Nf3 Nf6, 4.g3 e6, 3.Nf3 Nf6 4.d4 cxd4 5.Nxd4, 3.Nf3 e5 4.g3 g6 5.Bg2 Bg7)
Four Knights: 3.e3 Nf6 4.Nf3
A36 English Opening, Symmetrical: 1...c5 2.Nc3 Nc6 3.g3 (without: 3...g6 4.Bg2 Bg7 5.Nf3 (A37–A39), 3...g6 4.Bg2 Bg7 5.Rb1 Nf6 6.d3 0-0 7.Nf3 d6 8.0-0 (A38))
A37 English Opening, Symmetrical: 1...c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 (without: 5...Nf6 (A38–A39))
A38 English Opening, Symmetrical: 1...c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 (without: 6.0-0 0-0 7.d4 (A39) and 6.d4 cxd4 7.Nxd4 0-0 (A39))
A39 English Opening, Symmetrical, Main line with 1...c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.0-0 0-0 7.d4 or 1...c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.d4 cxd4 7.Nd4 0-0 8.0-0
A40–A44
1.d4 without 1...d5, 1...Nf6 or 1...f5: Atypical replies to 1.d4

A40 Queen's Pawn Game (including English Defence, Englund Gambit, Queen's Knight Defence, Polish Defence and Keres Defence)
A41 Queen's Pawn Game, Wade Defence
A42 Modern Defence, Averbakh System also Wade Defence
A43 Old Benoni Defence
A44 Old Benoni Defence
A45–A49
1.d4 Nf6 without 2.c4: Atypical replies to 1...Nf6

A45 Queen's Pawn Game, Trompowsky Attack
A46 Queen's Pawn Game, Torre Attack
A47 Queen's Indian Defence
A48 King's Indian, East Indian Defence
A49 King's Indian, Fianchetto without c4
A50–A79
1.d4 Nf6 2.c4 without 2...e6 or 2...g6: Atypical Indian systems

A50 Queen's Pawn Game (including Black Knights' Tango)
A51 Budapest Gambit declined
A52 Budapest Gambit
A53 Old Indian Defence
A54 Old Indian, Ukrainian Variation
A55 Old Indian, Main line
A56 Benoni defence
A57 Benko Gambit
A58 Benko Gambit Accepted
A59 Benko Gambit, 7.e4
A60 Benoni defence
A61 Benoni defence
A62 Benoni, Fianchetto Variation without early ...Nbd7
A63 Benoni, Fianchetto Variation, 9...Nbd7
A64 Benoni, Fianchetto Variation, 11...Re8
A65 Benoni, 6.e4
A66 Benoni, Pawn Storm Variation
A67 Benoni, Taimanov Variation
A68 Benoni, Four Pawns Attack
A69 Benoni, Four Pawns Attack, Main line
A70 Benoni, Classical with e4 and Nf3
A71 Benoni, Classical, 8.Bg5
A72 Benoni, Classical without 9.0-0
A73 Benoni, Classical, 9.0-0
A74 Benoni, Classical, 9...a6, 10.a4
A75 Benoni, Classical with ...a6 and 10...Bg4
A76 Benoni, Classical, 9...Re8
A77 Benoni, Classical, 9...Re8, 10.Nd2
A78 Benoni, Classical with ...Re8 and ...Na6
A79 Benoni, Classical, 11.f3
A80–A99
1.d4 f5: Dutch Defence

A80 Dutch Defence (without 2.c4 (A84–A99), 2.e4 (A82–A83), 2.g3 (A81))
Korchnoi Attack 2.h3
A81 Dutch Defence 2.g3
A82 Dutch, Staunton Gambit 2.e4
Balogh Defence 2...d6
Staunton Gambit Accepted 2...fxe4 (without 3.Nc3 Nf6 4.Bg5 (A83))
A83 Dutch, 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 with 2.c4 Nf6 3.Nc3
A86 Dutch with 2.c4 Nf6 3.g3 (without 3...g6 4.Bg2 Bg7 5.Nf3 (A87) and 3...e6 4.Bg2 (A90–A99))
A87 Dutch, 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, Leningrad, Main Variation with 5...0-0 6.0-0 d6 7.Nc3 c6
A89 Dutch, 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, 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, Stonewall with 6.0-0 d5.7.b3 c6 8.Ba3
A95 Dutch, Stonewall with 6.0-0 d5.7.Nc3 c6
A96 Dutch, 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, Ilyin–Genevsky Variation 7.Nc3 Qe8 (without 8.Qc2 (A98) and 8.b3 (A99))
A98 Dutch, Ilyin–Genevsky Variation with 7.Nc3 Qe8 8.Qc2
A99 Dutch, Ilyin–Genevsky Variation with 7.Nc3 Qe8 8.b3
B – Semi-Open Games other than the French Defense
1.e4 without 1...c5, 1...e6 or 1...e5 (B00–B19)
1.e4 c5: Sicilian Defence (B20–B99)
B00–B19
1.e4 without 1...c5, 1...e6 or 1...e5

B00 King's Pawn Opening without 1...e5, 1...e6, 1...d5, 1...Nf6, 1...g6, 1...d6, 1...c6, 1...c5.
Nimzowitsch Defence 1...Nc6 (without 2.Nf3 e5 (C44, C50, C60))
St. George Defence 1...a6 (without 2.d4 e6 (C00))
Cornstalk Defence 1 ...a5
Owen's Defence (Greek Defence) 1...b6 (without 2.d4 e6 3.c4 (A40))
Matinovsky Gambit 1...b6 2.d4 Bb7 3...f5
Hippopotamus Defence
and others
B01 Scandinavian Defence (Center Counter Defence)
Tennison Gambit 2.Nf3
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) Defence, including Monkey's Bum
B07 Pirc Defence
B08 Pirc, Classical (Two Knights) System
B09 Pirc, Austrian attack
B10 Caro-Kann Defence
B11 Caro–Kann, Two knights, 3...Bg4
B12 Caro–Kann Defence
B13 Caro–Kann, Exchange Variation
B14 Caro–Kann, Panov–Botvinnik Attack, 5...e6
B15 Caro–Kann Defence
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–B99
1.e4 c5: Sicilian Defence

B20 Sicilian Defence, (any move for white without 2.Nc3 (B23–B26), 2.c3 (B22), 2.f4 (B21) and 2.Nf3 (B27–B99))
Smith-Morra Gambit, 2.d4 (without 2...e6 (C00) and 2.d4 cxd4 3.c3 g6 (B22)) with Siberian Trap 2.d4 cxd4 3.c3 dxc3...
Sicilian Smith-Morra Morphy Gambit, 2.d4 cxd4 3.Nf3 (without 3...Nc6 (B32), 3...e6 (B40), 3...d6 (B53), 3...a6 4.Nd4 (B28))
Sicilian Halasz Gambit, 2.d4 cxd4 3.f4
B21 Sicilian, Grand Prix Attack, 2.f4 (without 2...e5 (C30))
B22 Sicilian, Alapin Variation, 2.c3 (without 2...d6 3.Nf3 (C50), 2...e6 3.Nf3 d5 (B40), 2...e6 3.d4 d5 4.e5 (C02), 2...g6 3.Nf3 (B27))
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 Defence, 2.Nf3 (without 2...a6 (B28), 2...Nc6 (B30), 2...d6 (B50), 2...e6 (B40), 2...Nf6 (B29))
Katalimov Variation, 2...b6
Hungarian Variation, 2...g6
Quinteros Variation, 2...Qc7
Mongoose Variation, 2...Qa5
B28 Sicilian, O'Kelly Variation, 2.Nf3 a6 (without 3.d4 cxd4 4.Nxd4 e6 (B41, B43))
B29 Sicilian, Nimzovich–Rubinstein Variation, 2.Nf3 Nf6 (without 3.e5 Nd5 4.c3 (B22), 3.Nc3 Nc6 (B30), 3.Nc3 d6 (B50), 3.d4 cxd4 4.Nd4 d6 (B54, B56, B94–B99))
B30 Sicilian Defence, 2.Nf3 Nc6 (without 3.Bb5 g6 (B31) 3.Bb5 d6 (B51))
Sicilian, Rossolimo Variation, 3.Bb5
B31 Sicilian, Nimzovich–Rossolimo Attack, 3.Bb5 g6
B32 Sicilian Defence, 2.Nf3 Nc6 3.d4 (without 3...cxd4 4.Nxd4 Nf6 (B33), 4...e6 (B44–B47) 4...g6 (B34))
B33 Sicilian, Sveshnikov (Lasker–Pelikan) Variation, 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 (without 5.Nc3 e6 (B45) 5...g6 (B34) 5...d6 (B56))
B34 Sicilian, Accelerated Fianchetto, Exchange Variation, 2.Nf3 Nc6 3 d4.cxd4 4.Nxd4 g6 (without 5.c4 (B36), 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 (B35))
B35 Sicilian, Accelerated Fianchetto, Modern Variation with 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 (without 7...b6 (B72, B75))
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, 5...Bg7 6.Be3 Nf6 7.Nc3 Ng4
B40 Sicilian Defence, 2.Nf3 e6
B41 Sicilian, Kan Variation, 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 (without 5.Bd3 (B42), 5.Nc3 (B43), 5.Be2 Nf6 6.Nc3 Qc7 (B43))
B42 Sicilian, Kan, 5.Bd3
B43 Sicilian, Kan, 5.Nc3
B44 Sicilian Defence, 2.Nf3 e6 3.d4 cxd4 4.Nd4 Nc6
B44 Sicilian, Szén Variation (5.Nb5)
B45 Sicilian, Taimanov Variation, 5.Nc3
B46 Sicilian, Taimanov Variation
B47 Sicilian, Taimanov (Bastrikov) variation
B48 Sicilian, Taimanov Variation
B49 Sicilian, Taimanov Variation
B50 Sicilian Defense
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, 7...Be7 defence, 9.f4
B65 Sicilian, Richter–Rauzer, Rauzer Attack, 7...Be7 defence, 9...Nxd4
B66 Sicilian, Richter–Rauzer, Rauzer Attack, 7...a6
B67 Sicilian, Richter–Rauzer, Rauzer Attack, 7...a6 defence, 8...Bd7
B68 Sicilian, Richter–Rauzer, Rauzer Attack, 7...a6 defence, 9...Be7
B69 Sicilian, Richter–Rauzer, Rauzer Attack, 7...a6 defence, 11.Bxf6
B70 Sicilian, Dragon Variation
B71 Sicilian, Dragon, Levenfish Attack
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, 7...0-0
B77 Sicilian, Dragon, Yugoslav Attack, 9.Bc4
B78 Sicilian, Dragon, Yugoslav Attack, 10.0-0-0
B79 Sicilian, Dragon, Yugoslav Attack, 12.h4
B80 Sicilian, Scheveningen Variation
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
C – Open Games and the French Defense
1.e4 e6: French Defence (C00–C19)
1.e4 e5: Open Game (C20–C99)
C00–C19
1.e4 e6: French Defence

C00 French Defence
C01 French, Exchange Variation
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
C20–C99
1.e4 e5: Open Game

C20 King's Pawn Game (includes Alapin's Opening, Lopez Opening, Napoleon Opening, Portuguese Opening, Danvers Opening)
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, Frankenstein–Dracula Variation
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 or McDonnell Gambit
C38 King's Gambit Accepted
C39 King's Gambit Accepted, Allgaier and Kieseritzky Gambits including Rice Gambit
C40 King's Knight Opening (includes Gunderam Defence, Brazilian Defense, Greco Defence, Damiano Defence, Elephant Gambit, and Latvian Gambit.)
C41 Philidor Defence
C42 Petrov's Defence, including Marshall Trap
C43 Petrov's Defence, Modern (Steinitz) Attack
C44 King's Pawn Game (includes Ponziani Opening, Inverted Hungarian Opening, Irish Gambit, Konstantinopolsky Opening and some Scotch Game)
C45 Scotch Game
C46 Three Knights Game including Halloween Gambit
C47 Four Knights Game
C48 Four Knights Game, Spanish Variation
C49 Four Knights Game, Double Ruy Lopez
C50 Italian Game (includes Blackburne Shilling Gambit, Hungarian Defense, Semi-Italian Opening, Italian Gambit, Légal Trap, Rousseau Gambit, Koltanowski Gambit and Giuoco Pianissimo)
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 Ruy Lopez Unusual Black 3rd moves and 3...g6
C61 Ruy Lopez, Bird's Defence
C62 Ruy Lopez, Old Steinitz Defence
C63 Ruy Lopez, Schliemann Defence
C64 Ruy Lopez, Classical (Cordel) Defence
C65 Ruy Lopez, Berlin Defence including Mortimer Trap
C66 Ruy Lopez, Berlin Defence, 4.0-0 d6
C67 Ruy Lopez, Berlin Defence, Open Variation
C68 Ruy Lopez, Exchange Variation
C69 Ruy Lopez, Exchange Variation, 5.0-0
C70 Ruy Lopez, 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4
C71 Ruy Lopez, Modern Steinitz Defence including Noah's Ark Trap
C72 Ruy Lopez, Modern Steinitz Defence 5.0-0
C73 Ruy Lopez, Modern Steinitz Defence, Richter Variation
C74 Ruy Lopez, Modern Steinitz Defence
C75 Ruy Lopez, Modern Steinitz Defence
C76 Ruy Lopez, Modern Steinitz Defence, Fianchetto (Bronstein) Variation
C77 Ruy Lopez, Morphy Defence
C78 Ruy Lopez, 5.0-0
C79 Ruy Lopez, Steinitz Defence Deferred (Russian Defence)
C80 Ruy Lopez, Open (Tarrasch) Defence
C81 Ruy Lopez, Open, Howell Attack
C82 Ruy Lopez, Open, 9.c3
C83 Ruy Lopez, Open, Classical Defence
C84 Ruy Lopez, Closed Defence
C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD)
C86 Ruy Lopez, Worrall Attack
C87 Ruy Lopez, Closed, Averbakh Variation
C88 Ruy Lopez, Closed
C89 Ruy Lopez, Marshall Counterattack
C90 Ruy Lopez, Closed, 7...d6
C90 Ruy Lopez, Closed, 7...d6, 9.d3 (Pilnik Variation)
C91 Ruy Lopez, Closed, 9.d4
C92 Ruy Lopez, Closed, 9.h3
C92 Ruy Lopez, Closed, 9.h3 Bb7 (Zaitsev Variation)
C93 Ruy Lopez, Closed, Smyslov Defence
C94 Ruy Lopez, Closed, Breyer Defence, 10.d3
C95 Ruy Lopez, Closed, Breyer Defence, 10.d4
C96 Ruy Lopez, Closed, 8...Na5
C97 Ruy Lopez, Closed, Chigorin Defence
C98 Ruy Lopez, Closed, Chigorin, 12...Nc6
C99 Ruy Lopez, Closed, Chigorin, 12...cxd4
D – Closed Games and Semi-Closed Games
1.d4 d5: Closed Game (D00–D69)
1.d4 Nf6 2.c4 g6 with 3...d5: Grünfeld Defence (D70–D99)
D00–D69
1.d4 d5: Closed Game

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 (including the Baltic Defence, Marshall 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
D31 QGD, Semi-Slav, Abrahams–Noteboom Variation 10...Bb7
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
D37 QGD; 4.Nf3 Be7 5.Bf4 (Harrwitz Attack)
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 (Tartakower–Makogonov–Bondarevsky) System
D59 QGD; Tartakower (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
D70–D99
1.d4 Nf6 2.c4 g6 with 3...d5: Grünfeld Defence

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, 7.0-0
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 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 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 Defence, Smyslov, Main line
E – Indian Defenses
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)
E00–E59
1.d4 Nf6 2.c4 e6: Indian systems with ...e6

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 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 Variat

In this Forum I am going to cover all the chess openings names :D :D :D :) All chess Openings: White first moves other than 1.e4, 1.d4 (A00–A39) 1.d4 without 1...d5, 1...Nf6 or 1...f5: 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) A00–A39 White first moves other than 1.e4, 1.d4: A00 Irregular Openings Anderssen's Opening: 1.a3 Anderssen's Opening, Polish Gambit: 1...a5 2.b4 Bugayev Attack 2...e5 Anderssen's Opening, Creepy Crawly Formation: 1...e5 2.h3 d5 Anderssen's Opening, Andersspike: 1...g6 2.g4 Ware Opening: 1.a4 Ware Opening, Wing Gambit: 1...b5 2.axb5 Bb7 Ware Opening, Ware Gambit: 1...e5 2.a5 d5 3.e3 f5 4.a6 Ware Opening, Crab Variation: 1...e5 2.h4 Sodium Attack: 1.Na3 Sodium Attack, Durkin Gambit: 1...e5 2.Nc4 Nc6 3. e4 f5 Sokolsky Opening: 1.b4 Sokolsky Opening, Birmingham Gambit: 1...c5 Sokolsky Opening, Outflank Variation: 1...c6 Sokolsky Opening, Schuhler Gambit: 1...c6 2.Bb2 a5 3.b5 cxb5 4.e4 Sokolsky Opening, Myers Variation: 1...d5 2.Bb2 c6 3.a4 Sokolsky Opening, Bugayev Attack: 1...e5 2.a3 Sokolsky Opening, Wolferts Gambit: 1...e5 2.Bb2 c5 Saragossa Opening: 1.c3 Van Geet Opening: 1.Nc3 Van 't Kruijs Opening: 1.e3 Mieses Opening: 1.d3 Barnes Opening: 1.f3 Barnes Opening, Hammerschlag Variation: 1...e5 2.Kf2 Benko's Opening: 1.g3 Myers Defense 1...g5 [1] Grob's Attack: 1.g4 Coca-Cola Gambit:1...g5 2.f4 Alessi Gambit: 1...f5 Clemenz Opening: 1.h3 Desprez Opening: 1.h4 Amar Opening: 1.Nh3 A01 Larsen's Opening: 1.b3 Modern variation: 1...e5 Classical variation: 1...d5 Indian variation: 1...Nf6 Symmetrical variation: 1...b6 English variation: 1...c5 Polish variation: 1...b5 Dutch variation: 1...f5 A02 Bird's Opening: 1.f4 (Dutch Attack, without: 1...d5, 1...g6 2.e4, 1...Nf6 2.d4, 1...e5 2.e4, 1...c5 2.e4, 1...d6 2.e4) From Gambit: 1...e5 (without: 2.e4) Symmetrical variation: 1...f5 A03 Bird's Opening: 1...d5 (without: 2.d4) Mujannah-Sturm Gambit: 2.c4 Lasker variation: 2.e3 Williams Gambit: 2.e4 A04 Réti Opening: 1.Nf3 (without: 1...Nf6, 1...d5, 1...c6 2.c4, 1...c6 2.d4, 1...c6 2.e4, 1...c6 2.g3 d5, 1...f5 2.c4, 1...f5 2.d4, 1...f5 2.e4 e5, 1...g6 2.c4, 1...g6 2.d4, 1...c5 2.c4, 1...c5 2.e4, 1...Nc6 2.e4, 1...e6 2.c4, 1...e6 2.d4, 1...e6 2.e4, 1...d6 2.c4, 1...d6 2.d4, 1...d6 2.e4, 1...b6 2.c4, 1...e5 2.e4, 1...a6 2.e4 e5) A05 Réti Opening: 1...Nf6 (without: 2.c4, 2.d4, 2.Nc3, 2.g3 d5 2.d3 d5) Santassiere's Folly: 2.b4 Nimzo-Larsen Attack: 2.b3 A06 Réti Opening: 1...d5 A07 Réti Opening, King's Indian Attack (Barcza System): 1...d5 2.g3 Keres variation: 2...Bg4 Yugoslav variation: 2...c6 A08 Réti Opening, King's Indian Attack: 1...d5 2.g3 c5 3.Bg2 A09 Réti Opening: 1...d5 2.c4 (without: 2...c6, 2...e6) Advance variation: 2...d4 Accepted: 2...dxc4 A10 English Opening: 1.c4 (without: 1...e5, 1...c5, 1...e6, 1...c6, 1...Nf6, 1...g6 2.d4, 1...f5 2.d4, 1...b6 2.d4, 1...d6 2.e4, 1...d6 2.d4, 1...Nc6 2.d4) English Anglo-Dutch: 1...f5 English Vector: 1...d5 English, Jaenisch Gambit: 1...b5 A11 English, Caro–Kann defensive system, 1...c6 (without: 2.e4, 2.d4) A12 English, Caro–Kann defensive system, 1...c6 2.Nf3 d5 3.b3 English Bogoljubov variation: 3...Bg4 English London Defence: 3...Nf6 4.g3 Bf5 A13 English Opening: 1...e6 (without: 2.e4, 2.d4) A14 English, Neo-Catalan declined: 1...e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 A15 English, Anglo-Indian Defence: 1...Nf6 (without: 2.Nc3, 2.d4, 2.g3 c6, 2.g3 e5, 2.Nf3 c5, 2.Nf3 e6, 2.Nf3 c6) A16 English Opening, Anglo-Indian Defence: 1...Nf6 2.Nc3 (without: 2...c5, 2...e5, 2...e6) Anglo-Grünfeld: 2...d5 A17 English Opening, Hedgehog Defence, 1...Nf6 2.Nc3 e6 (without: 3.e4, 3.d4, 3.Nf3 c5, 3...d5 4.d4, 3...b5 4.d4, 3...Bb4 4.d4) A18 English, Mikenas–Carls Variation: 1...Nf6 2.Nc3 e6 3.e4 (without: 3...c5) A19 English, Mikenas–Carls, Sicilian Variation: 1...Nf6 2.Nc3 e6 3.e4 c5 A20 English Opening: 1...e5 (without: 2.e4, 2.Nc3, 2.Nf3 Nc6 3.Nc3, 2.Nf3 Nf6 3.Nc3, 2.Nf3 d6 3.Nc3) A21 English Opening: 1...e5 2.Nc3 (without: 2...Nf6, 2...Nc6, 2...Bb4 3.g3 Nf6, 2...Bb4 3.Nf3 Nc6 2...Bb4 3.e3 Nf6) A22 English Opening: 1...e5 2.Nc3 Nf6 (without: 3.Nf3 Nc6, 3.e3 Nc6, 3.g3 Nc6, 3.g3 c6, 3.g3 g6, 3.e4 Nc6 4.Nf3) A23 English Opening, Bremen System, Keres Variation: 1...e5 2.Nc3 Nf6 3.g3 c6 A24 English Opening, Bremen System with 1...e5 2.Nc3 Nf6 3.g3 g6 (without: 4.Bg2 Bg7 5.d3 d6) A25 English Opening, Sicilian Reversed: 1...e5 2 Nc3 Nc6 (without 3.Nf3, 3.g3 Nf6 4.Nf3, 3.e3 Nf6 4.Nf3) A26 English Opening, Closed System; 1...e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 Botvinnik System: 6.e4 A27 English Opening, Three Knights System: 1...e5 2.Nc3 Nc6 3.Nf3 (without: 3...Nf6) A28 English Opening, Four Knights System: 1...e5 2.Nc3 Nc6 3.Nf3 Nf6 (without 4.g3) A29 English Opening, Four Knights, Kingside Fianchetto: 1...e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 A30 English Opening, Symmetrical defence: 1.c4 c5 (without: 2.Nc3, 2.e4, 2.g3 g6 3.Nc3, 2.g3 Nc6 3.Nc3, 2.Nf3 Nc6 3.Nc3, 2.e3 Nf6 4.d4) A31 English Opening, Symmetrical, Benoni formation: 1...c5 2.Nf3 Nf6 3.d4 (without: 3...cxd4 4.Nxd4 e6, 3...cxd4 4.Nxd4 a6 5.Nc3 e6, 3...cxd4 4.Nxd4 Nc6 5.Nc3 e6) A32 English Opening, Symmetrical: 1...c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 (without: 5.Nc3 Nc6) A33 English Opening, Symmetrical: 1...c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 Geller variation: 6.g3 Qb6 A34 English Opening, Symmetrical: 1...c5 2.Nc3 (without 2...Nc6, 2...Nf6 3.Nf3 Nc6, 2...Nf6 3.e4 e6, 2...e6 3.Nf3 Nf6, 4.g3 Nc6) A35 English Opening, Symmetrical: 1...c5 2.Nc3 Nc6 (without 3.g3, 3.e4, 3.Nf3 Nf6, 4.g3 e6, 3.Nf3 Nf6 4.d4 cxd4 5.Nxd4, 3.Nf3 e5 4.g3 g6 5.Bg2 Bg7) Four Knights: 3.e3 Nf6 4.Nf3 A36 English Opening, Symmetrical: 1...c5 2.Nc3 Nc6 3.g3 (without: 3...g6 4.Bg2 Bg7 5.Nf3 (A37–A39), 3...g6 4.Bg2 Bg7 5.Rb1 Nf6 6.d3 0-0 7.Nf3 d6 8.0-0 (A38)) A37 English Opening, Symmetrical: 1...c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 (without: 5...Nf6 (A38–A39)) A38 English Opening, Symmetrical: 1...c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 (without: 6.0-0 0-0 7.d4 (A39) and 6.d4 cxd4 7.Nxd4 0-0 (A39)) A39 English Opening, Symmetrical, Main line with 1...c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.0-0 0-0 7.d4 or 1...c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.d4 cxd4 7.Nd4 0-0 8.0-0 A40–A44 1.d4 without 1...d5, 1...Nf6 or 1...f5: Atypical replies to 1.d4 A40 Queen's Pawn Game (including English Defence, Englund Gambit, Queen's Knight Defence, Polish Defence and Keres Defence) A41 Queen's Pawn Game, Wade Defence A42 Modern Defence, Averbakh System also Wade Defence A43 Old Benoni Defence A44 Old Benoni Defence A45–A49 1.d4 Nf6 without 2.c4: Atypical replies to 1...Nf6 A45 Queen's Pawn Game, Trompowsky Attack A46 Queen's Pawn Game, Torre Attack A47 Queen's Indian Defence A48 King's Indian, East Indian Defence A49 King's Indian, Fianchetto without c4 A50–A79 1.d4 Nf6 2.c4 without 2...e6 or 2...g6: Atypical Indian systems A50 Queen's Pawn Game (including Black Knights' Tango) A51 Budapest Gambit declined A52 Budapest Gambit A53 Old Indian Defence A54 Old Indian, Ukrainian Variation A55 Old Indian, Main line A56 Benoni defence A57 Benko Gambit A58 Benko Gambit Accepted A59 Benko Gambit, 7.e4 A60 Benoni defence A61 Benoni defence A62 Benoni, Fianchetto Variation without early ...Nbd7 A63 Benoni, Fianchetto Variation, 9...Nbd7 A64 Benoni, Fianchetto Variation, 11...Re8 A65 Benoni, 6.e4 A66 Benoni, Pawn Storm Variation A67 Benoni, Taimanov Variation A68 Benoni, Four Pawns Attack A69 Benoni, Four Pawns Attack, Main line A70 Benoni, Classical with e4 and Nf3 A71 Benoni, Classical, 8.Bg5 A72 Benoni, Classical without 9.0-0 A73 Benoni, Classical, 9.0-0 A74 Benoni, Classical, 9...a6, 10.a4 A75 Benoni, Classical with ...a6 and 10...Bg4 A76 Benoni, Classical, 9...Re8 A77 Benoni, Classical, 9...Re8, 10.Nd2 A78 Benoni, Classical with ...Re8 and ...Na6 A79 Benoni, Classical, 11.f3 A80–A99 1.d4 f5: Dutch Defence A80 Dutch Defence (without 2.c4 (A84–A99), 2.e4 (A82–A83), 2.g3 (A81)) Korchnoi Attack 2.h3 A81 Dutch Defence 2.g3 A82 Dutch, Staunton Gambit 2.e4 Balogh Defence 2...d6 Staunton Gambit Accepted 2...fxe4 (without 3.Nc3 Nf6 4.Bg5 (A83)) A83 Dutch, 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 with 2.c4 Nf6 3.Nc3 A86 Dutch with 2.c4 Nf6 3.g3 (without 3...g6 4.Bg2 Bg7 5.Nf3 (A87) and 3...e6 4.Bg2 (A90–A99)) A87 Dutch, 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, Leningrad, Main Variation with 5...0-0 6.0-0 d6 7.Nc3 c6 A89 Dutch, 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, 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, Stonewall with 6.0-0 d5.7.b3 c6 8.Ba3 A95 Dutch, Stonewall with 6.0-0 d5.7.Nc3 c6 A96 Dutch, 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, Ilyin–Genevsky Variation 7.Nc3 Qe8 (without 8.Qc2 (A98) and 8.b3 (A99)) A98 Dutch, Ilyin–Genevsky Variation with 7.Nc3 Qe8 8.Qc2 A99 Dutch, Ilyin–Genevsky Variation with 7.Nc3 Qe8 8.b3 B – Semi-Open Games other than the French Defense 1.e4 without 1...c5, 1...e6 or 1...e5 (B00–B19) 1.e4 c5: Sicilian Defence (B20–B99) B00–B19 1.e4 without 1...c5, 1...e6 or 1...e5 B00 King's Pawn Opening without 1...e5, 1...e6, 1...d5, 1...Nf6, 1...g6, 1...d6, 1...c6, 1...c5. Nimzowitsch Defence 1...Nc6 (without 2.Nf3 e5 (C44, C50, C60)) St. George Defence 1...a6 (without 2.d4 e6 (C00)) Cornstalk Defence 1 ...a5 Owen's Defence (Greek Defence) 1...b6 (without 2.d4 e6 3.c4 (A40)) Matinovsky Gambit 1...b6 2.d4 Bb7 3...f5 Hippopotamus Defence and others B01 Scandinavian Defence (Center Counter Defence) Tennison Gambit 2.Nf3 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) Defence, including Monkey's Bum B07 Pirc Defence B08 Pirc, Classical (Two Knights) System B09 Pirc, Austrian attack B10 Caro-Kann Defence B11 Caro–Kann, Two knights, 3...Bg4 B12 Caro–Kann Defence B13 Caro–Kann, Exchange Variation B14 Caro–Kann, Panov–Botvinnik Attack, 5...e6 B15 Caro–Kann Defence 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–B99 1.e4 c5: Sicilian Defence B20 Sicilian Defence, (any move for white without 2.Nc3 (B23–B26), 2.c3 (B22), 2.f4 (B21) and 2.Nf3 (B27–B99)) Smith-Morra Gambit, 2.d4 (without 2...e6 (C00) and 2.d4 cxd4 3.c3 g6 (B22)) with Siberian Trap 2.d4 cxd4 3.c3 dxc3... Sicilian Smith-Morra Morphy Gambit, 2.d4 cxd4 3.Nf3 (without 3...Nc6 (B32), 3...e6 (B40), 3...d6 (B53), 3...a6 4.Nd4 (B28)) Sicilian Halasz Gambit, 2.d4 cxd4 3.f4 B21 Sicilian, Grand Prix Attack, 2.f4 (without 2...e5 (C30)) B22 Sicilian, Alapin Variation, 2.c3 (without 2...d6 3.Nf3 (C50), 2...e6 3.Nf3 d5 (B40), 2...e6 3.d4 d5 4.e5 (C02), 2...g6 3.Nf3 (B27)) 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 Defence, 2.Nf3 (without 2...a6 (B28), 2...Nc6 (B30), 2...d6 (B50), 2...e6 (B40), 2...Nf6 (B29)) Katalimov Variation, 2...b6 Hungarian Variation, 2...g6 Quinteros Variation, 2...Qc7 Mongoose Variation, 2...Qa5 B28 Sicilian, O'Kelly Variation, 2.Nf3 a6 (without 3.d4 cxd4 4.Nxd4 e6 (B41, B43)) B29 Sicilian, Nimzovich–Rubinstein Variation, 2.Nf3 Nf6 (without 3.e5 Nd5 4.c3 (B22), 3.Nc3 Nc6 (B30), 3.Nc3 d6 (B50), 3.d4 cxd4 4.Nd4 d6 (B54, B56, B94–B99)) B30 Sicilian Defence, 2.Nf3 Nc6 (without 3.Bb5 g6 (B31) 3.Bb5 d6 (B51)) Sicilian, Rossolimo Variation, 3.Bb5 B31 Sicilian, Nimzovich–Rossolimo Attack, 3.Bb5 g6 B32 Sicilian Defence, 2.Nf3 Nc6 3.d4 (without 3...cxd4 4.Nxd4 Nf6 (B33), 4...e6 (B44–B47) 4...g6 (B34)) B33 Sicilian, Sveshnikov (Lasker–Pelikan) Variation, 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 (without 5.Nc3 e6 (B45) 5...g6 (B34) 5...d6 (B56)) B34 Sicilian, Accelerated Fianchetto, Exchange Variation, 2.Nf3 Nc6 3 d4.cxd4 4.Nxd4 g6 (without 5.c4 (B36), 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 (B35)) B35 Sicilian, Accelerated Fianchetto, Modern Variation with 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 (without 7...b6 (B72, B75)) 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, 5...Bg7 6.Be3 Nf6 7.Nc3 Ng4 B40 Sicilian Defence, 2.Nf3 e6 B41 Sicilian, Kan Variation, 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 (without 5.Bd3 (B42), 5.Nc3 (B43), 5.Be2 Nf6 6.Nc3 Qc7 (B43)) B42 Sicilian, Kan, 5.Bd3 B43 Sicilian, Kan, 5.Nc3 B44 Sicilian Defence, 2.Nf3 e6 3.d4 cxd4 4.Nd4 Nc6 B44 Sicilian, Szén Variation (5.Nb5) B45 Sicilian, Taimanov Variation, 5.Nc3 B46 Sicilian, Taimanov Variation B47 Sicilian, Taimanov (Bastrikov) variation B48 Sicilian, Taimanov Variation B49 Sicilian, Taimanov Variation B50 Sicilian Defense 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, 7...Be7 defence, 9.f4 B65 Sicilian, Richter–Rauzer, Rauzer Attack, 7...Be7 defence, 9...Nxd4 B66 Sicilian, Richter–Rauzer, Rauzer Attack, 7...a6 B67 Sicilian, Richter–Rauzer, Rauzer Attack, 7...a6 defence, 8...Bd7 B68 Sicilian, Richter–Rauzer, Rauzer Attack, 7...a6 defence, 9...Be7 B69 Sicilian, Richter–Rauzer, Rauzer Attack, 7...a6 defence, 11.Bxf6 B70 Sicilian, Dragon Variation B71 Sicilian, Dragon, Levenfish Attack 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, 7...0-0 B77 Sicilian, Dragon, Yugoslav Attack, 9.Bc4 B78 Sicilian, Dragon, Yugoslav Attack, 10.0-0-0 B79 Sicilian, Dragon, Yugoslav Attack, 12.h4 B80 Sicilian, Scheveningen Variation 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 C – Open Games and the French Defense 1.e4 e6: French Defence (C00–C19) 1.e4 e5: Open Game (C20–C99) C00–C19 1.e4 e6: French Defence C00 French Defence C01 French, Exchange Variation 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 C20–C99 1.e4 e5: Open Game C20 King's Pawn Game (includes Alapin's Opening, Lopez Opening, Napoleon Opening, Portuguese Opening, Danvers Opening) 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, Frankenstein–Dracula Variation 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 or McDonnell Gambit C38 King's Gambit Accepted C39 King's Gambit Accepted, Allgaier and Kieseritzky Gambits including Rice Gambit C40 King's Knight Opening (includes Gunderam Defence, Brazilian Defense, Greco Defence, Damiano Defence, Elephant Gambit, and Latvian Gambit.) C41 Philidor Defence C42 Petrov's Defence, including Marshall Trap C43 Petrov's Defence, Modern (Steinitz) Attack C44 King's Pawn Game (includes Ponziani Opening, Inverted Hungarian Opening, Irish Gambit, Konstantinopolsky Opening and some Scotch Game) C45 Scotch Game C46 Three Knights Game including Halloween Gambit C47 Four Knights Game C48 Four Knights Game, Spanish Variation C49 Four Knights Game, Double Ruy Lopez C50 Italian Game (includes Blackburne Shilling Gambit, Hungarian Defense, Semi-Italian Opening, Italian Gambit, Légal Trap, Rousseau Gambit, Koltanowski Gambit and Giuoco Pianissimo) 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 Ruy Lopez Unusual Black 3rd moves and 3...g6 C61 Ruy Lopez, Bird's Defence C62 Ruy Lopez, Old Steinitz Defence C63 Ruy Lopez, Schliemann Defence C64 Ruy Lopez, Classical (Cordel) Defence C65 Ruy Lopez, Berlin Defence including Mortimer Trap C66 Ruy Lopez, Berlin Defence, 4.0-0 d6 C67 Ruy Lopez, Berlin Defence, Open Variation C68 Ruy Lopez, Exchange Variation C69 Ruy Lopez, Exchange Variation, 5.0-0 C70 Ruy Lopez, 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 C71 Ruy Lopez, Modern Steinitz Defence including Noah's Ark Trap C72 Ruy Lopez, Modern Steinitz Defence 5.0-0 C73 Ruy Lopez, Modern Steinitz Defence, Richter Variation C74 Ruy Lopez, Modern Steinitz Defence C75 Ruy Lopez, Modern Steinitz Defence C76 Ruy Lopez, Modern Steinitz Defence, Fianchetto (Bronstein) Variation C77 Ruy Lopez, Morphy Defence C78 Ruy Lopez, 5.0-0 C79 Ruy Lopez, Steinitz Defence Deferred (Russian Defence) C80 Ruy Lopez, Open (Tarrasch) Defence C81 Ruy Lopez, Open, Howell Attack C82 Ruy Lopez, Open, 9.c3 C83 Ruy Lopez, Open, Classical Defence C84 Ruy Lopez, Closed Defence C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) C86 Ruy Lopez, Worrall Attack C87 Ruy Lopez, Closed, Averbakh Variation C88 Ruy Lopez, Closed C89 Ruy Lopez, Marshall Counterattack C90 Ruy Lopez, Closed, 7...d6 C90 Ruy Lopez, Closed, 7...d6, 9.d3 (Pilnik Variation) C91 Ruy Lopez, Closed, 9.d4 C92 Ruy Lopez, Closed, 9.h3 C92 Ruy Lopez, Closed, 9.h3 Bb7 (Zaitsev Variation) C93 Ruy Lopez, Closed, Smyslov Defence C94 Ruy Lopez, Closed, Breyer Defence, 10.d3 C95 Ruy Lopez, Closed, Breyer Defence, 10.d4 C96 Ruy Lopez, Closed, 8...Na5 C97 Ruy Lopez, Closed, Chigorin Defence C98 Ruy Lopez, Closed, Chigorin, 12...Nc6 C99 Ruy Lopez, Closed, Chigorin, 12...cxd4 D – Closed Games and Semi-Closed Games 1.d4 d5: Closed Game (D00–D69) 1.d4 Nf6 2.c4 g6 with 3...d5: Grünfeld Defence (D70–D99) D00–D69 1.d4 d5: Closed Game 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 (including the Baltic Defence, Marshall 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 D31 QGD, Semi-Slav, Abrahams–Noteboom Variation 10...Bb7 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 D37 QGD; 4.Nf3 Be7 5.Bf4 (Harrwitz Attack) 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 (Tartakower–Makogonov–Bondarevsky) System D59 QGD; Tartakower (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 D70–D99 1.d4 Nf6 2.c4 g6 with 3...d5: Grünfeld Defence 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, 7.0-0 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 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 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 Defence, Smyslov, Main line E – Indian Defenses 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) E00–E59 1.d4 Nf6 2.c4 e6: Indian systems with ...e6 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 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 Variat

and the point of this is what exactly?

and the point of this is what exactly?

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