Notes:

  --------

  1. checks are not indicated - an ECO quirk

  2. I have been sparing with the qualifications (lines with and without

  certain moves) as they are implicit in the classification anyhow.

  3. I have typed all the castling moves with capital 'O's not zeroes (0).

  4. Volunteers to proofread take one step forward.

  5. English variation names added Spring 1997

 

---

• Main ECO codes A B C D E
  • Main ECO codes for each class
    • Full ECO codes
• A
  • A0
    • A00 A01 A02 A03 A04 A05 A06 A07 A08 A09
  • A1
    • A10 A11 A12 A13 A14 A15 A16 A17 A18 A19
  • A2
    • A20 A21 A22 A23 A24 A25 A26 A27 A28 A29
  • A3
    • A30 A31 A32 A33 A34 A35 A36 A37 A38 A39
  • A4
    • A40 A41 A42 A43 A44 A45 A46 A47 A48 A49
  • A5
    • A50 A51 A52 A53 A54 A55 A56 A57 A58 A59
  • A6
    • A60 A61 A62 A63 A64 A65 A66 A67 A68 A69
  • A7
    • A70 A71 A72 A73 A74 A75 A76 A77 A78 A79
  • A8
    • A80 A81 A82 A83 A84 A85 A86 A87 A88 A89
  • A9
    • A90 A91 A92 A93 A94 A95 A96 A97 A98 A99
• B
  • B0
    • B00 B01 B02 B03 B04 B05 B06 B07 B08 B09
  • B1
    • B10 B11 B12 B13 B14 B15 B16 B17 B18 B19
  • B2
    • B20 B21 B22 B23 B24 B25 B26 B27 B28 B29
  • B3
    • B30 B31 B32 B33 B34 B35 B36 B37 B38 B39
  • B4
    • B40 B41 B42 B43 B44 B45 B46 B47 B48 B49
  • B5
    • B50 B51 B52 B53 B54 B55 B56 B57 B58 B59
  • B6
    • B60 B61 B62 B63 B64 B65 B66 B67 B68 B69
  • B7
    • B70 B71 B72 B73 B74 B75 B76 B77 B78 B79
  • B8
    • B80 B81 B82 B83 B84 B85 B86 B87 B88 B89
  • B9
    • B90 B91 B92 B93 B94 B95 B96 B97 B98 B99
• C
  • C0
    • C00 C01 C02 C03 C04 C05 C06 C07 C08 C09
  • C1
    • C10 C11 C12 C13 C14 C15 C16 C17 C18 C19
  • C2
    • C20 C21 C22 C23 C24 C25 C26 C27 C28 C29
  • C3
    • C30 C31 C32 C33 C34 C35 C36 C37 C38 C39
  • C4
    • C40 C41 C42 C43 C44 C45 C46 C47 C48 C49
  • C5
    • C50 C51 C52 C53 C54 C55 C56 C57 C58 C59
  • C6
    • C60 C61 C62 C63 C64 C65 C66 C67 C68 C69
  • C7
    • C70 C71 C72 C73 C74 C75 C76 C77 C78 C79
  • C8
    • C80 C81 C82 C83 C84 C85 C86 C87 C88 C89
  • C9
    • C90 C91 C92 C93 C94 C95 C96 C97 C98 C99
• D
  • D0
    • D00 D01 D02 D03 D04 D05 D06 D07 D08 D09
  • D1
    • D10 D11 D12 D13 D14 D15 D16 D17 D18 D19
  • D2
    • D20 D21 D22 D23 D24 D25 D26 D27 D28 D29
  • D3
    • D30 D31 D32 D33 D34 D35 D36 D37 D38 D39
  • D4
    • D40 D41 D42 D43 D44 D45 D46 D47 D48 D49
  • D5
    • D50 D51 D52 D53 D54 D55 D56 D57 D58 D59
  • D6
    • D60 D61 D62 D63 D64 D65 D66 D67 D68 D69
  • D7
    • D70 D71 D72 D73 D74 D75 D76 D77 D78 D79
  • D8
    • D80 D81 D82 D83 D84 D85 D86 D87 D88 D89
  • D9
    • D90 D91 D92 D93 D94 D95 D96 D97 D98 D99
• E
  • E0
    • E00 E01 E02 E03 E04 E05 E06 E07 E08 E09
  • E1
    • E10 E11 E12 E13 E14 E15 E16 E17 E18 E19
  • E2
    • E20 E21 E22 E23 E24 E25 E26 E27 E28 E29
  • E3
    • E30 E31 E32 E33 E34 E35 E36 E37 E38 E39
  • E4
    • E40 E41 E42 E43 E44 E45 E46 E47 E48 E49
  • E5
    • E50 E51 E52 E53 E54 E55 E56 E57 E58 E59
  • E6
    • E60 E61 E62 E63 E64 E65 E66 E67 E68 E69
  • E7
    • E70 E71 E72 E73 E74 E75 E76 E77 E78 E79
  • E8
    • E80 E81 E82 E83 E84 E85 E86 E87 E88 E89
  • E9
    • E90 E91 E92 E93 E94 E95 E96 E97 E98 E99

---

Main ECO codes
A

- 1. R' 1. e4, 1. d4

  Irregular openings.

  - 1. d4 R' 1 ...d5, 1... Nf6

  Untypical replies to 1.d4

  - 1. d4 Nf6 2. R' 2. c4

  Untypical replies to 1...Nf6

  - 1. d4 Nf6 2. c4 R' 2... e6, 2... g6

  Untypical Indian systems.

B

- 1. e4 R' 1... c5, 1... e6, 1... e5

  Most Semi-Open Defences

  - 1. e4 c5

  Sicilian Defence

C

- 1. e4 e6

  French defence

  - 1. e4 e5

  Double King Pawn games

D

- 1. d4 d5

  Double Queen Pawn games

 

  - 1. d4 Nf6 2. c4 g6 + d7-d5

  Grunfeld Defence

E

- 1. d4 Nf6 2. c4 e6

  Indian systems with ...e6

  - 1. d4 Nf6 2. c4 g6 ' d7-d5

  Indian systems with ...g6 (except Grunfeld)

 

Main ECO codes for each class

Full ECO codes

A

- 1. R' 1. e4, 1. d4

  Irregular openings.

  - 1. d4 R' 1 ...d5, 1... Nf6

  Untypical replies to 1.d4

  - 1. d4 Nf6 2. R' 2. c4 (humongous typo on (c) page!)

  Untypical replies to 1...Nf6

  - 1. d4 Nf6 2. c4 R' 2... e6, 2... g6

  Untypical Indian systems.

A0

1. R' 1. e4, 1. d4, 1. c4

  Irregular openings.

A00

1. R,

  1. g3,

  1. b4

  Irregular Openings,

  Benko Opening,

  Sokolsky (Polish Opening)

A01

1. b3

  Nimzo-Larsen Attack

A02

1. f4

  Bird's Opening

A03

1. f4 d5

  Bird's Opening

A04

1. Nf3

  Reti Opening

A05

1. Nf3 Nf6

  Reti Opening with 1...Nf6

A06

1. Nf3 d5

  Reti Opening with 1...d5

A07

1. Nf3 d5 2. g3

  Reti Opening, Barcza System

A08

1. Nf3 d5 2. g3 c5 3. Bg2

  Reti Opening, Barcza System

A09

1. Nf3 d5 2. c4

  Reti Opening

A1

1. c4

  English Opening

A10

1 c4

  English Opening

A11

1 c4 c6

  English Opening, systems with 1...e6

A12

1 c4 c6 2. Nf3 d5 3. b3

  (Reti Opening)

A13

1 c4 e6

  English Opening, systems with 1...e6

A14

1 c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O

  (Reti Opening)

A15

1 c4 Nf6

  English Opening, systems with 1...Nf6

A16

1 c4 Nf6 2. Nc3

  English Opening, systems with 1...Nf6

A17

1 c4 Nf6 2. Nc3 e6

  English Opening, Anglo-Indian

A18

1 c4 Nf6 2. Nc3 e6 3. e4

  Flohr-Mikenas Variation

A19

1 c4 Nf6 2. Nc3 e6 3. e4 c5

  Flohr-Mikenas Variation

A2

1. c4 e5

  English Opening with 1...e5 (King's English, or Reversed Sicilian)

A20

1. c4 e5

  English Opening, Reversed Sicilian

A21

1. c4 e5 2. Nc3

  English Opening, Reversed Sicilian

A22

1. c4 e5 2. Nc3 Nf6

  English Opening, Reversed Sicilian

A23

1. c4 e5 2. Nc3 Nf6 3. g3 c6

  English Opening, Reversed Sicilian

A24

1. c4 e5 2. Nc3 Nf6 3. g3 g6

  English Opening, Reversed Sicilian

A25

1. c4 e5 2. Nc3 Nc6

  English Opening, Reversed Sicilian, Closed Systems

A26

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6

  English Opening, Reversed Sicilian, Closed Systems

A27

1. c4 e5 2. Nc3 Nc6 3. Nf3

  English Opening, Reversed Sicilian, Closed Systems

A28

1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6

  English Opening, Reversed Sicilian, Four Knights' Variation

A29

1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3

  English Opening, Reversed Sicilian, Four Knights' Variation

A3

1. c4 c5

  Symmetrical English

A30

1. c4 c5

  Symmetrical English

A31

1. c4 c5 2. Nf3 Nf6 3. d4

  Symmetrical English, Anti-Benoni

A32

1. c4 c5 2. Nf3 Nf6 3. d4 cd4 4. Nd4 e6

  Symmetrical English, Anti-Benoni

A33

1. c4 c5 2. Nf3 Nf6 3. d4 cd4 4. Nd4 e6 5. Nc3 Nc6

  Symmetrical English, Anti-Benoni

A34

1. c4 c5 2. Nc3

  Symmetrical English

A35

1. c4 c5 2. Nc3 Nc6

  Symmetrical English, Closed systems

A36

1. c4 c5 2. Nc3 Nc6 3. g3

  Symmetrical English, Closed systems

A37

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3

  Symmetrical English, Closed systems

A38

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6

  Symmetrical English, Closed systems

A39

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. d4

  English Opening, Maroczy Bind

A4

1. d4

  Queen Pawn games

A40

1. d4

  Queen Pawn games

A41

1. d4 d6

  Queen Pawn games, systems with 1...d6

A42

1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4

  Modern Defence, Averbakh Variation

A43

1. d4 c5

  Benoni

A44

1. d4 c5 2. d5 e5

  Old Benoni (...g6) or Czech Benoni (...Be7)

A45

1. d4 Nf6

  Indian systems

A46

1. d4 Nf6 2. Nf3

  Indian systems with 2. Nf3

A47

1. d4 Nf6 2. Nf3 b6

  Indian systems with 2. Nf3

A48

1. d4 Nf6 2. Nf3 g6

  Indian systems with 2. Nf3

A49

1. d4 Nf6 2. Nf3 g6 3. g3

  Indian systems with 2. Nf3

A5

1. d4 Nf6 2. c4

  Indian systems

A50

1. d4 Nf6 2. c4

  Indian systems with 2. c4

A51

1. d4 Nf6 2. c4 e5

  Budapest Gambit

A52

1. d4 Nf6 2. c4 e5 3. de5 Ng4

  Budapest Gambit, main line accepted

A53

1. d4 Nf6 2. c4 d6

  Old Indian Defence

A54

1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3

  Old Indian Defence

A55

1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. e4

  Old Indian Defence

A56

1. d4 Nf6 2. c4 c5

  Benoni Defence

A57

1. d4 Nf6 2. c4 c5 3. d5 b5

  Benko Gambit

A58

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cb5 a6 5. ba6

  Benko Gambit Accepted

A59

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cb5 a6 5. ba6 Ba6 6. Nc3 d6 7. e4

  Benko Gambit Accepted, Classical Variation

A6

1. d4 Nf6 2. c4 c5 3. d5 e6

  Modern Benoni

A60

1. d4 Nf6 2. c4 c5 3. d5 e6

  Modern Benoni

A61

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. Nf3 g6

  Modern Benoni

A62

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. Nf3 g6 7. g3 Bg7 8. Bg2 O-O

  Modern Benoni, Fianchetto Variation

A63

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. Nf3 g6 7. g3 Bg7 8. Bg2 O-O 8. Bg2 O-O 9. O-O Nbd7

  Modern Benoni, Fianchetto Variation

A64

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. Nf3 g6 7. g3 Bg7 8. Bg2 O-O 8. Bg2 O-O 9. O-O Nbd7 10. Nd2 a6 11. a4 Re8

  Modern Benoni, Fianchetto Variation

A65

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4

  Modern Benoni, Main Variation

A66

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. f4

  Modern Benoni, Four Pawns (Mikenas) Attack

A67

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5

  Modern Benoni, Bishop Check Variation (Taimanov)

A68

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3 O-O

  Modern Benoni, Four Pawns (Mikenas) Attack

A69

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3 O-O 9. Be2 Re8

  Modern Benoni, Four Pawns (Mikenas) Attack

A7

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. Nf3

  Modern Benoni, Classical variation

A70

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. Nf3

  Modern Benoni, Classical Variation

A71

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2

  Modern Benoni, Classical Variation

A72

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O

  Modern Benoni, Classical Variation

A73

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O

  Modern Benoni, Classical Variation

A74

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O a6

  Modern Benoni, Classical Variation

A75

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O a6 10. a4 Bg4

  Modern Benoni, Classical Variation

A76

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8

  Modern Benoni, Classical Variation

A77

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2

  Modern Benoni, Classical Variation

A78

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6

  Modern Benoni, Classical Variation

A79

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6 11. f3 Nc7

  Modern Benoni, Classical Variation

A8

1. d4 f5

  Dutch Defence

A80

1. d4 f5

  Dutch Defence

A81

1. d4 f5 2. g3

  Dutch Defence

A82

1. d4 f5 2. e4

  Dutch Defence, Staunton Gambit

A83

1. d4 f5 2. e4 fe4 3. Nc3 Nf6 4. Bg5

  Dutch Defence, Staunton Gambit

A84

1. d4 f5 2. c4

  Dutch Defence

A85

1. d4 f5 2. c4 Nf6 3. Nc3

  Dutch Defence

A86

1. d4 f5 2. c4 Nf6 3. g3

  Dutch Defence

A87

1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3

  Dutch Defence, Leningrad Variation

A88

1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 O-O 6. O-O d6 7. Nc3 c6

  Dutch Defence, Leningrad Variation

A89

1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 O-O 6. O-O d6 7. Nc3 Nc6

  Dutch Defence, Leningrad Variation

A9

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2

  Dutch Defence, Classical variation

A90

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2

  Dutch Defence, Classical Variation

A91

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7

  Dutch Defence, Classical Variation

A92

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O

  Dutch Defence, Classical Variation

A93

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. b3

  Dutch Defence, Stonewall Variation

A94

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. b3 c6 8. Ba3

  Dutch Defence, Stonewall Variation

A95

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. Nc3 c6

  Dutch Defence, Stonewall Variation

A96

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6

  Dutch Defence, Iljin-Zhenevsky Variation

A97

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8

  Dutch Defence, Iljin-Zhenevsky Variation

A98

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. Qc2

  Dutch Defence, Iljin-Zhenevsky Variation

A99

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. b3

  Dutch Defence, Iljin-Zhenevsky Variation

B

- 1. e4 R' 1... c5, 1... e6, 1... e5

  Most Semi-Open Defences

  - 1. e4 c5

  Sicilian Defence

B0

1. e4

  King Pawn games

B00

1. e4 R + 1... Nc6

  King Pawn games, inc. Nimzovitch defence

B01

1. e4 d5

  Centre Counter Defence (Scandanavian)

B02

1. e4 Nf6

  Alekhin's Defence

B03

1. e4 Nf6 2. e5 Nd5 3. d4

  Alekhin's Defence

B04

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3

  Alekhin's Defence, Classical Variation

B05

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4

  Alekhin's Defence, Classical Variation

B06

1. e4 g6

  Modern Defence

B07

1. e4 d6 2. d4 Nf6

  Pirc (Robatsch) Defence

B08

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3

  Pirc Defence, Classical Variation

B09

1. e4 d6 2. d4 Nf63. Nc3 g6 4. f4

  Pirc Defence, Austrian Attack

B1

1. e4 c6

  Caro-Kann Defence

B10

1. e4 c6

  Caro-Kann Defence

B11

1. e4 c6 2. Nf3 d5 3. Nc3 Bg4

  Caro-Kann Defence, Two Knights' Variation

B12

1. e4 c6 2. d4

  Caro-Kann Defence

B13

1. e4 c6 2. d4 d5 3. ed5 cd5

  Caro-Kann Defence, Exchange Variation

B14

1. e4 c6 2. d4 d5 3. ed5 cd5 4. c4 Nf6 5. Nc3

  Caro-Kann Defence, Panov-Botvinnik attack

B15

1. e4 c6 2. d4 d5 3. Nc3

  Caro-Kann Defence

B16

1. e4 c6 2. d4 d5 3. Nc3 de4 4. Ne4 Nf6 5. Nf6 gf6

  Caro-Kann Defence, Bronstein-Larsen variation

B17

1. e4 c6 2. d4 d5 3. Nc3 de4 4. Ne4 Nd7

  Caro-Kann Defence, with 4...Nd7

B18

1. e4 c6 2. d4 d5 3. Nc3 de4 4. Ne4 Bf5

  Caro-Kann Defence, classical variation

B19

1. e4 c6 2. d4 d5 3. Nc3 de4 4. Ne4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7

  Caro-Kann Defence, classical variation

B2

1. e4 c5

  Sicilian Defence

B20

1. e4 c5

  Sicilian Defence

B21

1. e4 c5: - 2. f4, -2. d4

  Sicilian Defence, Grand Prix (Vincken) Attack and Morra Gambit

B22

1. e4 c5 2.c3

  Sicilian Defence, Alapin Variation

B23

1. e4 c5 2. Nc3

  Sicilian Defence, Closed Variation

B24

1. e4 c5 2. Nc3 Nc6 3. g3

  Sicilian Defence, Closed Variation

B25

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6

  Sicilian Defence, Closed Variation

B26

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3

  Sicilian Defence, Closed Variation

B27

1. e4 c5 2. Nf3

  Sicilian Defence

B28

1. e4 c5 2. Nf3 a6

  Sicilian Defence, O'Kelly Variation

B29

1. e4 c5 2. Nf3 Nf6

  Sicilian Defence, Nimzovitch Variation

B3

1. e4 c5 2. Nf3 Nc6

  Sicilian Defence with 2...Nc6

B30

1. e4 c5 2. Nf3 Nc6

  Sicilian Defence with 2...Nc6

B31

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6

  Sicilian Defence, Rossolimo Variation

B32

1. e4 c5 2. Nf3 Nc6 3. d4

  Sicilian Defence

B33

1. e4 c5 2. Nf3 Nc6 3. d4 cd4 4. Nd4

  Sicilian Defence

B34

1. e4 c5 2. Nf3 Nc6 3. d4 cd4 4. Nd4 g6

  Sicilian Defence, Accelerated Dragon Variation

B35

1. e4 c5 2. Nf3 Nc6 3. d4 cd4 4. Nd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4

  Sicilian Defence, Accelerated Dragon Variation

B36

1. e4 c5 2. Nf3 Nc6 3. d4 cd4 4. Nd4 g6 5. c4

  Sicilian Defence, Accelerated Dragon Variation, Maroczy Bind

B37

1. e4 c5 2. Nf3 Nc6 3. d4 cd4 4. Nd4 g6 5. c4 Bg7

  Sicilian Defence, Accelerated Dragon Variation, Maroczy Bind

B38

1. e4 c5 2. Nf3 Nc6 3. d4 cd4 4. Nd4 g6 5. c4 Bg7 6. Be3

  Sicilian Defence, Accelerated Dragon Variation, Maroczy Bind

B39

1. e4 c5 2. Nf3 Nc6 3. d4 cd4 4. Nd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4

  Sicilian Defence, Accelerated Dragon Variation, Maroczy Bind

B4

1. e4 c5 2. Nf3 e6

  Sicilian Defence with 2...e6

B40

1. e4 c5 2. Nf3 e6

  Sicilian Defence with 2...e6

B41

1. e4 c5 2. Nf3 e6 3. d4 cd4 4. Nd4 a6

  Sicilian Defence, Kan Variation

B42

1. e4 c5 2. Nf3 e6 3. d4 cd4 4. Nd4 a6 5. Bd3

  Sicilian Defence, Kan Variation

B43

1. e4 c5 2. Nf3 e6 3. d4 cd4 4. Nd4 a6 5. Nc3

  Sicilian Defence, Kan Variation

B44

1. e4 c5 2. Nf3 e6 3. d4 cd4 4. Nd4 Nc6

  Sicilian Defence, Paulsen/Taimanov Variation

B45

1. e4 c5 2. Nf3 e6 3. d4 cd4 4. Nd4 Nc6 5. Nc3

  Sicilian Defence, Paulsen/Taimanov Variation

B46

1. e4 c5 2. Nf3 e6 3. d4 cd4 4. Nd4 Nc6 5. Nc3 a6

  Sicilian Defence, Paulsen/Taimanov Variation

B47

1. e4 c5 2. Nf3 e6 3. d4 cd4 4. Nd4 Nc6 5. Nc3 Qc7

  Sicilian Defence, Paulsen/Taimanov Variation

B48

1. e4 c5 2. Nf3 e6 3. d4 cd4 4. Nd4 Nc6 5. Nc3 Qc7 6. Be3

  Sicilian Defence, Paulsen/Taimanov Variation

B49

1. e4 c5 2. Nf3 e6 3. d4 cd4 4. Nd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2

  Sicilian Defence, Paulsen/Taimanov Variation

B5

1. e4 c5 2. Nf3 d6

  Sicilian Defence with 2...d6

B50

1. e4 c5 2. Nf3 d6

  Sicilian Defence with 2...d6

B51

1. e4 c5 2. Nf3 d6 3. Bb5

  Sicilian Defence, Sicilian Check Variation

B52

1. e4 c5 2. Nf3 d6 3. Bb5 Bd7

  Sicilian Defence, Sicilian Check Variation

B53

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Qd4

  Sicilian Defence, Chekhover Variation

B54

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4

  Sicilian Defence

B55

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. f3 e5 6. Bb5

  Sicilian Defence

B56

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3

  Sicilian Defence

B57

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bc4

  Sicilian Defence, Sozin Variation

B58

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Be2

  Sicilian Defence

B59

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3

  Sicilian Defence, Boleslavsky Variation

B6

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bg5

  Sicilian Defence, Richter-Rauser Attack

B60

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bg5

  Sicilian Defence, Richter-Rauser Attack

B61

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7 7. Qd2

  Sicilian Defence, Richter-Rauser Attack

B62

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bg5 e6

  Sicilian Defence, Richter-Rauser Attack

B63

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2

  Sicilian Defence, Richter-Rauser Attack

B64

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4

  Sicilian Defence, Richter-Rauser Attack

B65

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nd4 10. Qd4

  Sicilian Defence, Richter-Rauser Attack

B66

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6

  Sicilian Defence, Richter-Rauser Attack

B67

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7

  Sicilian Defence, Richter-Rauser Attack

B68

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7

  Sicilian Defence, Richter-Rauser Attack

B69

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Bf6

  Sicilian Defence, Richter-Rauser Attack

B7

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 g6

  Sicilian Defence, Dragon Variation

B70

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 g6

  Sicilian Defence, Dragon Variation

B71

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 g6 6. f4

  Sicilian Defence, Dragon Variation, Levenfish variation

B72

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 g6 6. Be3

  Sicilian Defence, Dragon Variation

B73

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. O-O

  Sicilian Defence, Dragon Variation, Classical Variation

B74

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. O-O O-O 9. Nb3

  Sicilian Defence, Dragon Variation, Classical Variation

B75

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3

  Sicilian Defence, Dragon Variation, Yugoslav Attack

B76

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O

  Sicilian Defence, Dragon Variation, Yugoslav Attack

B77

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4

  Sicilian Defence, Dragon Variation, Yugoslav Attack

B78

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O

  Sicilian Defence, Dragon Variation, Yugoslav Attack

B79

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O Qa5 11. Bb3 Rfc8 12. h4

  Sicilian Defence, Dragon Variation, Yugoslav Attack

B8

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6

  Sicilian Defence, Scheveningen Variation

B80

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6

  Sicilian Defence, Scheveningen Variation

B81

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6 6. g4

  Sicilian Defence, Scheveningen Variation, Keres Attack

B82

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6 6. f4

  Sicilian Defence, Scheveningen Variation

B83

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6 6. Be2

  Sicilian Defence, Scheveningen Variation, Classical System

B84

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6 6. Be2 a6

  Sicilian Defence, Scheveningen Variation, Classical System

B85

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6 6. Be2 a6 7. O-O Qc7 8. f4 Nc6

  Sicilian Defence, Scheveningen Variation, Classicial System

B86

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6 6. Bc4

  Sicilian Defence, Scheveningen Variation

B87

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6 6. Bc4 a6 7. Bb3 b5

  (Sicilian Defence, Najdorf Variation)

B88

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6 6. Bc4 Nc6

  (Sicilian Defence, Najdorf Variation)

B89

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6 6. Bc4 Nc6 7. Be3

  (Sicilian Defence, Najdorf Variation)

B9

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6

  Sicilian Defence, Najforf Variation

B90

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6

  Sicilian Defence, Najdorf Variation

B91

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6 6. g3

  Sicilian Defence, Najdorf Variation

B92

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6 6. Be2

  Sicilian Defence, Najdorf Variation

B93

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6 6. f4

  Sicilian Defence, Najdorf Variation

B94

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6 6. Bg5

  Sicilian Defence, Najdorf Variation

B95

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6 6. Bg5 e6

  Sicilian Defence, Najdorf Variation

B96

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4

  Sicilian Defence, Najdorf Variation

B97

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6

  Sicilian Defence, Najdorf Variation, Poisoned Pawn Variation

B98

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7

  Sicilian Defence, Najdorf Variation

B99

1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7

  Sicilian Defence, Najdorf Variation

C

- 1. e4 e6

  French defence

  - 1. e4 e5

  Double King Pawn games

C0

1. e4 e6

  French Defence

C00

1. e4 e6

  French Defence

C01

1. e4 e6 2. d4 d5 3. ed5 ed5

  French Defence, Exchange Variation

C02

1. e4 e6 2. d4 d5 3. e5

  French Defence, Advance Variation

C03

1. e4 e6 2. d4 d5 3. Nd2

  French Defence, Tarrasch Variation

C04

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6

  French Defence, Tarrasch Variation, Guimard system

C05

1. e4 e6 2. d4 d5 3. Nd2 Nf6

  French Defence, Tarrasch Variation

C06

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cd4 8. cd4

  French Defence, Tarrasch Variation

C07

1. e4 e6 2. d4 d5 3. Nd2 c5

  French Defence, Tarrasch Variation

C08

1. e4 e6 2. d4 d5 3. Nd2 c5 4. ed5 ed5

  French Defence, Tarrasch Variation

C09

1. e4 e6 2. d4 d5 3. Nd2 c5 4. ed5 ed5 5. Ngf3 Nc6

  French Defence, Tarrasch Variation

C1

1. e4 e6 2. d4 d5 3. Nc3

  French Defence with 3. Nc3

C10

1. e4 e6 2. d4 d5 3. Nc3

  French Defence

C11

1. e4 e6 2. d4 d5 3. Nc3 Nf6

  French Defence, Classical Variation

C12

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4

  French Defence, MacCutcheon Variation

C13

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7

  French Defence, Classical Variation

C14

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Be7 Qe7

  French Defence, Classical Variation

C15

1. e4 e6 2. d4 d5 3. Nc3 Bb4

  French Defence, Winawer Variation

C16

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5

  French Defence, Winawer Variation

C17

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5

  French Defence, Winawer Variation

C18

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bc3 6. bc3

  French Defence, Winawer Variation

C19

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bc3 6. bc3 Ne7

  French Defence, Winawer Variation

C2

1. e4 e5

  Double King Pawn games

C20

1. e4 e5

  Double King Pawn games

C21

1. e4 e5 2. d4 ed4

  Centre Game & Danish Gambit

C22

1. e4 e5 2. d4 ed4 3. Qd4 Nc6

  Centre Game

C23

1. e4 e5 2. Bc4

  Bishop's Opening

C24

1. e4 e5 2. Bc4 Nf6

  Bishop's Opening

C25

1. e4 e5 2. Nc3

  Vienna Game

C26

1. e4 e5 2. Nc3 Nf6

  Vienna Game

C27

1. e4 e5 2. Nc3 Nf6 3. Bc4 Ne4

  Vienna Game, Frankenstein-Dracula Variation

C28

1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6

  Vienna Game

C29

1. e4 e5 2. Nc3 Nf6 3. f4 d5

  Vienna Gambit

C3

1. e4 e5 2. f4

  King's Gambit

C30

1. e4 e5 2. f4

  King's Gambit

C31

1. e4 e5 2. f4 d5

  King's Gambit

C32

1. e4 e5 2. f4 d5 3. ed5 e4 4. d3 Nf6

  King's Gambit, Falkbeer Counter-Gambit

C33

1. e4 e5 2. f4 ef4

  King's Gambit Accepted

C34

1. e4 e5 2. f4 ef4 3. Nf3

  King's Knight's Gambit

C35

1. e4 e5 2. f4 ef4 3. Nf3 Be7

  King's Gambit, Cunningham Variation

C36

1. e4 e5 2. f4 ef4 3. Nf3 d5

  King's Gambit, Modern Variation

C37

1. e4 e5 2. f4 ef4 3. Nf3 g5

  King's Gambit

C38

1. e4 e5 2. f4 ef4 3. Nf3 g5 4. Bc4 Bg7

  King's Gambit, Hanstein Variation

C39

1. e4 e5 2. f4 ef4 3. Nf3 g5 4. h4

  King's Gambit, Kieseritsky Variation

C4

1. e4 e5 2. Nf3

  Double King Pawn games with 2. Nf3

C40

1. e4 e5 2. Nf3

  Double King Pawn games

C41

1. e4 e5 2. Nf3 d6

  Philidor Defence

C42

1. e4 e5 2. Nf3 Nf6

  Petroff Defence

C43

1. e4 e5 2. Nf3 Nf6 3. d4

  Petroff Defence, Steinitz Variation

C44

1. e4 e5 2. Nf3 Nc6

  Double King Pawn games

C45

1. e4 e5 2. Nf3 Nc6 3. d4 ed4 4. Nd4

  Scotch Game

C46

1. e4 e5 2. Nf3 Nc6 3. Nc3

  Three Knights' Game

C47

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4

  Scotch Four Knights'

C48

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5

  Four Knights' Game

C49

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4

  Four Knights' Game

C5

1. e4 e5 2. Nf3 Nc6 3. Bc4

  Italian Game

C50

1. e4 e5 2. Nf3 Nc6 3. Bc4

  Italian Game

C51

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4

  Evans' Gambit

C52

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb4 5. c3 Ba5

  Evans' Gambit

C53

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3

  Giuoco Piano

C54

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 ed4 6. cd4

  Giuoco Piano

C55

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6

  Two Knights' Defence

C56

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 ed4 5. O-O Ne4

  Two Knights' Defence

C57

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5

  Two Knights' Defence

C58

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. ed5 Na5

  Two Knights' Defence, main line gambit

C59

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. ed5 Na5 6. Bb5 c6 7. dc6 bc6 8. Be2 h6

  Two Knights' Defence, main line gambit

C6

1. e4 e5 2. Nf3 Nc6 3. Bb5

  Ruy Lopez (Spanish Game)

C60

1. e4 e5 2. Nf3 Nc6 3. Bb5

  Ruy Lopez Opening (Spanish Game)

C61

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4

  Ruy Lopez, Bird's Defence

C62

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6

  Ruy Lopez, Steinitz Defence

C63

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5

  Ruy Lopez, Schliemann Gambit

C64

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5

  Ruy Lopez, Classical Defence

C65

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6

  Ruy Lopez, Berlin Defence

C66

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6

  Ruy Lopez, Berlin Defence

C67

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Ne4

  Ruy Lopez, Berlin Defence

C68

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bc6

  Ruy Lopez, Exchange Variation

C69

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bc6 dc6 5. O-O

  Ruy Lopez, Exchange Variation

C7

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4

  Ruy Lopez (Spanish Game), Morphy Defence

C70

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4

  Ruy Lopez, Morphy Defence

C71

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6

  Ruy Lopez, Modern Steinitz Variation

C72

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O

  Ruy Lopez, Modern Steinitz Variation

C73

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bc6 bc6 6. d4

  Ruy Lopez, Modern Steinitz Variation

C74

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3

  Ruy Lopez, Modern Steinitz Variation

C75

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7

  Ruy Lopez, Modern Steinitz Variation

C76

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 g6

  Ruy Lopez, Modern Steinitz Variation

C77

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6

  Ruy Lopez, Morphy Defence

C78

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O

  Ruy Lopez, Morphy Defence

C79

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6

  Ruy Lopez, Modern Steinitz Variation

C8

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 5. O-O: + 5...Ne4, 5... Be7

  Ruy Lopez (Spanish Game), Open Morphy Defence (5...Ne4)

  Ruy Lopez (Spanish Game), Closed Morphy Defence (5...Be7)

C80

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Ne4

  Ruy Lopez, Open Morphy Variation

C81

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Ne4 6. d4 b5 7. Bb3 d5 8. de5 Be6 9. Qe2

  Ruy Lopez, Open Morphy Variation

C82

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Ne4 6. d4 b5 7. Bb3 d5 8. de5 Be6 9. c3

  Ruy Lopez, Open Morphy Variation

C83

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Ne4 6. d4 b5 7. Bb3 d5 8. de5 Be6 9. c3 Be7

  Ruy Lopez, Open Morphy Variation

C84

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7

  Ruy Lopez, Closed Morphy Defence

C85

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bc6 dc6

  Ruy Lopez, Delayed Exchange Variation

C86

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2

  Ruy Lopez, Worral Attack

C87

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 d6

  Ruy Lopez, Closed Morphy Defence

C88

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3

  Ruy Lopez, Closed Morphy Defence

C89

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5

  Ruy Lopez, Marshall Gambit

C9

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6

  Ruy Lopez (Spanish Game), Closed Morphy Defence (5...Be7), Main line

C90

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6

  Ruy Lopez, Closed Morphy Defence

C91

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. d4

  Ruy Lopez, Closed Morphy Defence

C92

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3

  Ruy Lopez, Closed Morphy Defence

C93

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 h6

  Ruy Lopez, Closed Morphy Defence

C94

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Nb8

  Ruy Lopez, Closed Morphy Defence, Breyer Variation

C95

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Nb8 10. d4

  Ruy Lopez, Closed Morphy Defence, Breyer Variation

C96

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2

  Ruy Lopez, Closed Morphy Defence, Tchigorin Variation

C97

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5 11. d4 Qc7

  Ruy Lopez, Closed Morphy Defence, Tchigorin Variation

C98

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6

  Ruy Lopez, Closed Morphy Defence, Tchigorin Variation

C99

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cd4 13. cd4

  Ruy Lopez, Closed Morphy Defence, Tchigorin Variation

D

- 1. d4 d5

  Double Queen Pawn games

  - 1. d4 Nf6 2. c4 g6 + d7-d5

  Grunfeld Defence

D0

1. d4 d5

  Double Queen Pawn games

D00

1. d4 d5

  Double Queen Pawn games

D01

1. d4 d5 2. Nc3 Nf6 3. Bg5

  (Richter-)Veresov System

D02

1. d4 d5 2. Nf3

  Double Queen Pawn games

D03

1. d4 d5 2. Nf3 Nf6 3. Bg5

  Double Queen Pawn games

D04

1. d4 d5 2. Nf3 Nf6 3. e3

  Colle System

D05

1. d4 d5 2. Nf3 Nf6 3. e3 e6

  Colle System

D06

1. d4 d5 2. c4

  Queen's Gambit

D07

1. d4 d5 2. c4 Nc6

  Queen's Gambit, Tchigorin defence

D08

1. d4 d5 2. c4 e5

  Queen's Gambit, Albin Counter-Gambit

D09

1. d4 d5 2. c4 e5 3. de5 d4 4. Nf3 Nc6 5. g3

  Queen's Gambit, Albin Counter-Gambit

D1

1. d4 d5 2. c4 c6

  Queen's Gambit Declined, Slav Defence

D10

1. d4 d5 2. c4 c6

  Queen's Gambit Declined, Slav Defence

D11

1. d4 d5 2. c4 c6 3. Nf3

  Queen's Gambit Declined, Slav Defence

D12

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5

  Queen's Gambit Declined, Slav Defence

D13

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cd5 cd5

  Queen's Gambit Declined, Slav Defence, Exchange Variation

D14

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cd5 cd5 5. Bf4 Bf5

  Queen's Gambit Declined, Slav Defence, Exchange Variation

D15

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3

  Queen's Gambit Declined, Slav Defence

D16

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dc4 5. a4

  Queen's Gambit Declined, Slav Defence, Dutch Variation

D17

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dc4 5. a4 Bf5

  Queen's Gambit Declined, Slav Defence, Dutch Variation

D18

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dc4 5. a4 Bf5 6. e3

  Queen's Gambit Declined, Slav Defence, Dutch Variation

D19

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dc4 5. a4 Bf5 6. e3 e6 7. Bc4 Bb4 8. O-O O-O 9. Qe2

  Queen's Gambit Declined, Slav Defence, Dutch Variation

D2

1. d4 d5 2. c4 dc4

  Queen's Gambit Accepted

D20

1. d4 d5 2. c4 dc4

  Queen's Gambit Accepted

D21

1. d4 d5 2. c4 dc4 3. Nf3

  Queen's Gambit Accepted

D22

1. d4 d5 2. c4 dc4 3. Nf3 a6 4. e3

  Queen's Gambit Accepted, Alekhin Variation

D23

1. d4 d5 2. c4 dc4 3. Nf3 Nf6

  Queen's Gambit Accepted

D24

1. d4 d5 2. c4 dc4 3. Nf3 Nf6 4. Nc3

  Queen's Gambit Accepted

D25

1. d4 d5 2. c4 dc4 3. Nf3 Nf6 4. e3

  Queen's Gambit Accepted

D26

1. d4 d5 2. c4 dc4 3. Nf3 Nf6 4. e3 e6

  Queen's Gambit Accepted

D27

1. d4 d5 2. c4 dc4 3. Nf3 Nf6 4. e3 e6 5. Bc4 c5 6. O-O a6

  Queen's Gambit Accepted

D28

1. d4 d5 2. c4 dc4 3. Nf3 Nf6 4. e3 e6 5. Bc4 c5 6. O-O a6 7. Qe2

  Queen's Gambit Accepted

D29

1. d4 d5 2. c4 dc4 3. Nf3 Nf6 4. e3 e6 5. Bc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7

  Queen's Gambit Accepted

D3

1. d4 d5 2. c4 e6

  Queen's Gambit Declined, Orthodox Defence

D30

1. d4 d5 2. c4 e6

  Queen's Gambit Declined, Orthodox Defence

D31

1. d4 d5 2. c4 e6 3. Nc3

  Queen's Gambit Declined, Orthodox Defence

D32

1. d4 d5 2. c4 e6 3. Nc3 c5

  Queen's Gambit Declined, Tarrasch Defence

D33

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cd5 ed5 5. Nf3 Nc6 6. g3

  Queen's Gambit Declined, Tarrasch Defence, Schlechter-Rubinstein system

D34

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cd5 ed5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7

  Queen's Gambit Declined, Tarrasch Defence, Schlechter-Rubinstein system

D35

1. d4 d5 2. c4 e6 3. Nc3 Nf6

  Queen's Gambit Declined, Orthodox Defence

D36

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cd5 ed5 5. Bg5 c6 6. Qc2

  Queen's Gambit Declined, Exchange Variation

D37

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3

  Queen's Gambit Declined, Orthodox Defence

D38

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4

  Queen's Gambit Declined, Ragozin Variation

D39

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. Bg5 dc4

  Queen's Gambit Declined, Vienna Variation

D4

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3

  Queen's Gambit Declined, Orthodox Defence with 4. Nf3

D40

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5

  Queen's Gambit Declined, Semi-Tarrasch (Improved Tarrasch) Defence

D41

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cd5

  Queen's Gambit Declined, Semi-Tarrasch (Improved Tarrasch) Defence

D42

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cd5 Nd5 6. e3 Nc6 7. Bd3

  Queen's Gambit Declined, Semi-Tarrasch (Improved Tarrasch) Defence

D43

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6

  Queen's Gambit Declined, Semi-Slav Defence

D44

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. Bg5 dc4

  Queen's Gambit Declined, Semi-Slav Defence, Anti-Meran System

D45

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3

  Queen's Gambit Declined, Semi-Slav Defence

D46

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3

  Queen's Gambit Declined, Semi-Slav Defence

D47

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 dc4 7. Bc4

  Queen's Gambit Declined, Semi-Slav Defence, Meran Variation

D48

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 dc4 7. Bc4 b5 8. Bd3 a6

  Queen's Gambit Declined, Semi-Slav Defence, Meran Variation

D49

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 dc4 7. Bc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cd4 11. Nb5

  Queen's Gambit Declined, Semi-Slav Defence, Meran Variation

D5

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5

  Queen's Gambit Declined, Orthodox Defence with 4. Bg5

D50

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5

  Queen's Gambit Declined, Orthodox Defence

D51

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7

  Queen's Gambit Declined, Orthodox Defence

D52

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3

  Queen's Gambit Declined, Orthodox Defence

D53

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7

  Queen's Gambit Declined, Orthodox Defence

D54

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Rc1

  Queen's Gambit Declined, Orthodox Defence

D55

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3

  Queen's Gambit Declined, Orthodox Defence

D56

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4

  Queen's Gambit Declined, Orthodox Defence

D57

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Be7 Qe7 9. cd5 Nc3 10. bc3

  Queen's Gambit Declined, Orthodox Defence, Lasker System

D58

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 b6

  Queen's Gambit Declined, Orthodox Defence, Tartakower Variation

D59

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 b6 8. cd5 Nd5

D6

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7

  Queen's Gambit Declined, Orthodox Defence with 4. Bg5, main line

D60

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7

  Queen's Gambit Declined, Orthodox Defence

D61

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2

  Queen's Gambit Declined, Orthodox Defence, Rubinstein Variation

D62

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c5 8. dc5

  Queen's Gambit Declined, Orthodox Defence, Rubinstein Variation

D63

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1

  Queen's Gambit Declined, Orthodox Defence

D64

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Qc2

  Queen's Gambit Declined, Orthodox Defence, Tempo-Struggle Variation

D65

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Qc2 a6 9. cd5

  Queen's Gambit Declined, Orthodox Defence, Tempo-Struggle Variation

D66

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3

  Queen's Gambit Declined, Orthodox Defence, Main Variation

D67

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dc4 9. Bc4 Nd5

  Queen's Gambit Declined, Orthodox Defence, Capablanca System

D68

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dc4 9. Bc4 Nd5 10. Be7 Qe7 11. O-O Nc3 12. Rc3 e5

  Queen's Gambit Declined, Orthodox Defence, Capablanca System

D69

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dc4 9. Bc4 Nd5 10. Be7 Qe7 11. O-O Nc3 12. Rc3 e5 13. de5 Ne5 14. Ne5 Qe5

  Queen's Gambit Declined, Orthodox Defence, Capablanca System

D7

1. d4 Nf6 2. c4 g6 R' d7-d5

  mostly King's Indian Defence

D70

1. d4 Nf6 2. c4 g6

  King's Indian Defence

D71

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. cd5 Nd5

  Grunfeld Defence, Fianchetto Variation

D72

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. cd5 Nd5 6. e4 Nb6 7. Ne2

  Grunfeld Defence, Fianchetto Variation

D73

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O

  Grunfeld Defence, Fianchetto Variation

D74

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. cd5 Nd5 7. O-O

  Grunfeld Defence, Fianchetto Variation

D75

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. cd5 Nd5 7. O-O c5

  Grunfeld Defence, Fianchetto Variation

D76

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. cd5 Nd5 7. O-O Nb6

  Grunfeld Defence, Fianchetto Variation

D77

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. O-O

  Grunfeld Defence, Fianchetto Variation

D78

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. O-O c6

  Grunfeld Defence, Fianchetto Variation, Schlechter System

D79

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. O-O c6 7. cd5 cd5

  Grunfeld Defence, Fianchetto Variation

D8

1. d4 Nf6 2. c4 g6 3. Nc3 d5

  Grunfeld Defence

D80

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5

  Grunfeld Defence, Taimanov Variation

D81

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3

  Grunfeld Defence, system with 4. Bf4

D82

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4

  Grunfeld Defence, system with 4. Bf4

D83

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O

  Grunfeld Defence, system with 4. Bf4

D84

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. cd5 Nd5 7. Nd5 Qd5 8. Bc7

  Grunfeld Defence, system with 4. Bf4

D85

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cd5 Nd5

  Grunfeld Defence, Exchange Variation

D86

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cd5 Nd5 5. e4 Nc3 6. bc3 Bg7 7. Bc4

  Grunfeld Defence, Exchange Variation

D87

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cd5 Nd5 5. e4 Nc3 6. bc3 Bg7 7. Bc4 O-O 8. Ne2 c5

  Grunfeld Defence, Exchange Variation

D88

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cd5 Nd5 5. e4 Nc3 6. bc3 Bg7 7. Bc4 O-O 8. Ne2 c5 9. O-O Nc6 10. Be3 cd4 11. cd4

  Grunfeld Defence, Exchange Variation

D89

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cd5 Nd5 5. e4 Nc3 6. bc3 Bg7 7. Bc4 O-O 8. Ne2 c5 9. O-O Nc6 10. Be3 cd4 11. cd4 Bg4 12. f3 Na5 13. Bd3

  Grunfeld Defence, Exchange Variation

D9

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3

  Grunfeld Defence

D90

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3

  Grunfeld Defence

D91

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5

  Grunfeld Defence, system with 5. Bg5

D92

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4

  Grunfeld Defence, system with 5. Bf4

D93

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3

  Grunfeld Defence,

D94

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3

  Grunfeld Defence, Quiet (slow) system

D95

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Qb3

  Grunfeld Defence, Quiet (slow) system

D96

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3

  Grunfeld Defence, Russian system

D97

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dc4 6. Qc4 O-O 7. e4

  Grunfeld Defence, Russian system

D98

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dc4 6. Qc4 O-O 7. e4 Bg4

  Grunfeld Defence, Russian system

D99

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dc4 6. Qc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb3

  Grunfeld Defence, Russian system, Smyslov variation

E

- 1. d4 Nf6 2. c4 e6

  Indian systems with ...e6

  - 1. d4 Nf6 2. c4 g6 ' d7-d5

  Indian systems with ...g6 (except Grunfeld)

E0

1. d4 Nf6 2. c4 e6 3. g3

  Neo-Catalan

E00

1. d4 Nf6 2. c4 e6 3. g3

  Neo-Catalan

E01

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2

  Catalan

E02

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dc4 5. Qa4

  Catalan, Open Variation

E03

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dc4 5. Qa4 Nbd7 6. Qc4

  Catalan, Open Variation

E04

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dc4 5. Nf3

  Catalan, Open Variation

E05

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dc4 5. Nf3 Be7

  Catalan, Open Variation

E06

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3

  Catalan, Closed Variation

E07

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7

  Catalan, Closed Variation

E08

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2

  Catalan, Closed Variation

E09

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2

  Catalan, Closed Variation

E1

1. d4 Nf6 2. c4 e6 3. Nf3

  Indian Defences with 3. Nf3

E10

1. d4 Nf6 2. c4 e6 3. Nf3

  Indian system with 2...e6

E11

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4

  Bogo-Indian Defence

E12

1. d4 Nf6 2. c4 e6 3. Nf3 b6

  Queen's Indian Defence

E13

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 h6 6. Bh4 Bb4

  Queen's Indian Defence

E14

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3

  Queen's Indian Defence, Closed Variation

E15

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3

  Queen's Indian Defence, Classical Variation

E16

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4

  Queen's Indian Defence, Classical Variation

E17

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7

  Queen's Indian Defence, Classical Variation

E18

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3

  Queen's Indian Defence, Classical Variation

E19

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nc3 9. Qc3

  Queen's Indian Defence, Classical Variation

E2

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4

  Nimzo-Indian Defence

E20

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4

  Nimzo-Indian Defence

E21

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3

  Nimzo-Indian Defence, Three Knights' System

E22

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3

  Nimzo-Indian Defence, Spielmann Variation

E23

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dc5 Nc6

  Nimzo-Indian Defence, Spielmann Variation

E24

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bc3 5. bc3

  Nimzo-Indian Defence, Samisch Variation

E25

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bc3 5. bc3 c5 6. f3 d5 7. cd5

  Nimzo-Indian Defence, Open Samisch Variation

E26

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bc3 5. bc3 c5 6. e3

  Nimzo-Indian Defence, Closed Samisch Variation

E27

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bc3 5. bc3 O-O

  Nimzo-Indian Defence, Samisch Variation

E28

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bc3 5. bc3 O-O 6. e3

  Nimzo-Indian Defence, Closed Samisch Variation

E29

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bc3 5. bc3 O-O 6. e3 c5 7. Bd3 Nc6

  Nimzo-Indian Defence, Closed Samisch Variation

E3

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4: + 4. Bg5, 4. Qc2

  Nimzo-Indian Defence, Leningrad Variation

  Nimzo-Indian Defence, Classical Variation

E30

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5

  Nimzo-Indian Defence, Leningrad Variation

E31

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 d6

  Nimzo-Indian Defence, Leningrad Variation

E32

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2

  Nimzo-Indian Defence, Classical Variation

E33

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6

  Nimzo-Indian Defence, Classical Variation, Milner-Barry Variation

E34

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5

  Nimzo-Indian Defence, Classical Variation

E35

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cd5 ed5

  Nimzo-Indian Defence, Classical Variation

E36

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3

  Nimzo-Indian Defence, Classical Variation

E37

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bc3 6. Qc3 Ne4 7. Qc2

  Nimzo-Indian Defence, Classical Variation

E38

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5

  Nimzo-Indian Defence, Classical Variation

E39

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dc5 O-O 6. Nf3

  Nimzo-Indian Defence, Classical Variation

E4

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3

  Nimzo-Indian Defence, Rubinstein Variation

E40

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3

  Nimzo-Indian Defence, Rubinstein Variation

E41

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5

  Nimzo-Indian Defence, Rubinstein Variation, Hubner System

E42

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2

  Nimzo-Indian Defence, Rubinstein Variation, Rubinstein System

E43

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6

  Nimzo-Indian Defence, Rubinstein Variation, Fischer Variation

E44

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2

  Nimzo-Indian Defence, Rubinstein Variation, Fischer Variation

E45

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6

  Nimzo-Indian Defence, Rubinstein Variation, Fischer Variation

E46

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O

  Nimzo-Indian Defence, Rubinstein Variation, (main line)

E47

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3

  Nimzo-Indian Defence, Rubinstein Variation, (main line)

E48

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5

  Nimzo-Indian Defence, Rubinstein Variation (main line)

E49

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bc3 7. bc3

  Nimzo-Indian Defence, Rubinstein Variation (Closed Samisch Variation)

E5

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3

  Nimzo-Indian Defence, Rubinstein Variation with 4...O-O

E50

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3

  Nimzo-Indian Defence, Rubinstein Variation

E51

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5

  Nimzo-Indian Defence, Rubinstein Variation

E52

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 b6

  Nimzo-Indian Defence, Rubinstein Variation, Tal Variation

E53

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5

  Nimzo-Indian Defence, Rubinstein Variation

E54

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O dc4 8. Bc4

  Nimzo-Indian Defence, Rubinstein Variation, Bronstein (Bd7) and Smyslov (Qe7) Variations

E55

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O dc4 8. Bc4 Nbd7

  Nimzo-Indian Defence, Rubinstein Variation, Parma Variation

E56

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O Nc6

  Nimzo-Indian Defence, Rubinstein Variation (main line)

E57

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O Nc6 8. a3 dc4 9. Bc4 cd4

  Nimzo-Indian Defence, Rubinstein Variation (main line)

E58

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O Nc6 8. a3 Bc3 9. bc3

  Nimzo-Indian Defence, Rubinstein Variation (main line)

E59

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O Nc6 8. a3 Bc3 9. bc3 dc4 10. Bc4

  Nimzo-Indian Defence, Rubinstein Variation (main line)

E6

1. d4 Nf6 2. c4 g6 R' d7-d5

  King's Indian Defence

E60

1. d4 Nf6 2. c4 g6

  King's Indian Defence

E61

1. d4 Nf6 2. c4 g6 3. Nc3

  King's Indian Defence

E62

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3

  King's Indian Defence, Fianchetto Variation

E63

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 Nc6 7. O-O a6

  King's Indian Defence, Fianchetto Variation, Panno system

E64

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 c5

  King's Indian Defence, Fianchetto Variation, Leningrad variation

E65

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 c5 7. O-O

  King's Indian Defence, Fianchetto Variation, Leningrad variation

E66

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 c5 7. O-O Nc6 8. d5

  King's Indian Defence, Fianchetto Variation, Leningrad variation

E67

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 Nbd7

  King's Indian Defence, Fianchetto Variation, classical system

E68

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 Nbd7 7. O-O e5 8. e4

  King's Indian Defence, Fianchetto Variation, classical system

E69

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 Nbd7 7. O-O e5 8. e4 c6 9. h3

  King's Indian Defence, Fianchetto Variation, classical system

E7

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4

  King's Indian Defence

E70

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4

  King's Indian Defence

E71

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3

  King's Indian Defence, system with 5.h3

E72

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3

  King's Indian Defence, Fianchetto Variation

E73

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2

  King's Indian Defence

E74

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5

  King's Indian Defence, Averbakh Variation

E75

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 e6

  King's Indian Defence, Averbakh Variation

E76

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4

  King's Indian Defence, Four Pawns' Attack

E77

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2

  King's Indian Defence, Four Pawns' Attack

E78

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. Nf3

  King's Indian Defence, Four Pawns' Attack

E79

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. Nf3 cd4 8. Nd4 Nc6 9. Be3

  King's Indian Defence, Four Pawns' Attack

E8

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3

  King's Indian Defence, Samisch Variation

E80

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3

  King's Indian Defence, Samisch Variation

E81

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O

  King's Indian Defence, Samisch Variation

E82

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 b6

  King's Indian Defence, Samisch Variation, Byrne System

E83

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6

  King's Indian Defence, Samisch Variation

E84

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8

  King's Indian Defence, Samisch Variation

E85

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5

  King's Indian Defence, Samisch Variation

E86

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6

  King's Indian Defence, Samisch Variation

E87

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5

  King's Indian Defence, Samisch Variation

E88

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6

  King's Indian Defence, Samisch Variation

E89

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cd5

  King's Indian Defence, Samisch Variation

E9

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3

  King's Indian Defence, Classical Variation

E90

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3

  King's Indian Defence, Classical Variation

E91

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2

  King's Indian Defence, Classical Variation

E92

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5

  King's Indian Defence, Classical Variation

E93

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7

  King's Indian Defence, Classical Variation, Petrosian System

E94

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O

  King's Indian Defence, Classical Variation, Old system

E95

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1

  King's Indian Defence, Classical Variation, Old system

E96

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1 c6 9. Bf1 a5

  King's Indian Defence, Classical Variation, Old system

E97

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6

  King's Indian Defence, Classical Variation, Mar del Plata Variation

E98

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1

  King's Indian Defence, Classical Variation, Mar del Plata Variation

E99

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. f3 f5

  King's Indian Defence, Classical Variation, Mar del Plata Variation