All Openings

All The Chess Openings

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
• Kádas Opening: Beginner's Trap

• 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

• Durkin Opening: 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.Nxd4 0-0 8.0-0

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

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

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, Mainline
• A56 Benoni defense
• A57 Benko Gambit
• A58 Benko Gambit Accepted
• A59 Benko Gambit, 7.e4
• A60 Benoni defense
• A61 Benoni defense
• 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, Mainline
• 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

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)

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

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.Nxd4 (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.Nxd4 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.Nxd4 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

 Open Games and the French Defense

• 1.e4 e6: French Defence (C00–C19)
• 1.e4 e5: Open Game (C20–C99)

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, Mainline
• C07 French, Tarrasch, Open Variation
• C08 French, Tarrasch, Open, 4.exd5 exd5
• C09 French, Tarrasch, Open Variation, Mainline
• 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 King's Pawn Game (includes Alapin's Opening, Lopez Opening, Napoleon Opening, Portuguese Opening, Danvers Opening, Bongcloud Attack)
• 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)

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, Mainline
• 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, Mainline
• D66 QGD; Orthodox Defence, Bd3 line including Rubinstein Trap
• D67 QGD; Orthodox Defence, Bd3 line, Capablanca freeing maneuver
• 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 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

 Indian Defenses

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

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, Mainline
• E10 Queen's Pawn Game 3.Nf3
• E11 Bogo-Indian Defence
• E12 Queen's Indian Defence
• E13 Queen's Indian, 4.Nc3, Mainline
• 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 Mainline, 7.Nc3
• E19 Queen's Indian, Old Mainline, 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, 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, Mainline
• 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, Mainline, 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
• E41 Nimzo-Indian, 4.e3 c5 5.Bd3 Nc6 6.Nf3 Bxc3+ 7.bxc3 d6, Hübner Variation
• 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, Mainline with ...b6
• E53 Nimzo-Indian, 4.e3, Mainline 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, Mainline with 7...Nc6
• E57 Nimzo-Indian, 4.e3, Mainline with 8...dxc4 and 9...Bxc4 cxd4
• E58 Nimzo-Indian, 4.e3, Mainline 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 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, 7.0-0
• 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 Mainline
• E70 King's Indian, 4.e4
• E71 King's Indian, Makogonov System (5.h3)
• E72 King's Indian with e4 and g3
• E73 King's Indian, 5.Be2
• E74 King's Indian, Averbakh, 6...c5
• E75 King's Indian, Averbakh, Mainline
• 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, Mainline
• 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, Mainline
• E94 King's Indian, Orthodox Variation
• E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1
• E96 King's Indian, Orthodox, 7...Nbd7, Mainline
• 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

The End!