Chess Opening Variances English Opening Eco Code A10 – A39

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A10

English 1. c4

English

1. c4

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Study Games for Games for A10

A10

A11

English Caro-Kann Defensive System 1. c4 c6

English Caro-Kann Defensive System

1. c4 c6

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Study Games for Games for A11

A11

A12

English Caro-Kann Defensive System 1. c4 c6 2. Nf3 d5 3. b3

English Caro-Kann Defensive System

1. c4 c6 2. Nf3 d5 3. b3

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Study Games for A12

A12

A13

English 1. c4 e6

English

1. c4 e6

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Study Games for A13

A13

A14

English, Neo-Catalan declined 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. 0-0

English, Neo-Catalan declined

1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. 0-0

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Study Games for A14

A14

A15

English Opening: Anglo-Indian Defence, Mikenas-Carls Variation 1.c4 Nf6

English Opening: Anglo-Indian Defence, Mikenas-Carls Variation

1.c4 Nf6

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Puzzels

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Study Games for A15

A15

A16

English Opening 1. c4 Nf6 2. Nc3

English Opening

1. c4 Nf6 2. Nc3

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Study Games for A16

A16

A17

English Opening: Anglo-Indian Defence, Hedgehog System 1.c4 Nf6 2.Nc3 e6

English Opening: Anglo-Indian Defence, Hedgehog System

1.c4 Nf6 2.Nc3 e6

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Puzzels

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Study Games for A17

A17

A18

English Opening: Anglo-Indian Defence, Flohr-Mikenas-Carls Variation 1.c4 Nf6 2.Nc3 e6 3.e4 d5 4.e5

English Opening: Anglo-Indian Defence, Flohr-Mikenas-Carls Variation

1.c4 Nf6 2.Nc3 e6 3.e4 d5 4.e5

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Study Games for A18

A18

A19

English Opening: Anglo-Indian Defence, Flohr-Mikenas-Carls Variation 1. c4 Nf6 2. Nc3 e6 3. e4 c5

English Opening: Anglo-Indian Defence, Flohr-Mikenas-Carls Variation

1. c4 Nf6 2. Nc3 e6 3. e4 c5

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Puzzels

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Study Games for A19

A20

English Opening: King's English Variation 1.c4 e5

English Opening: King's English Variation

1.c4 e5

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Study Games for A20

A20

A21

English Opening 1. c4 e5 2. Nc3

English Opening

1. c4 e5 2. Nc3

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Study Games for A21

A21

A22

English Opening 1. c4 e5 2. Nc3 Nf6

English Opening

1. c4 e5 2. Nc3 Nf6

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Study Games for A22

A22

A23

English Opening: King's English Variation, Two Knights' Variation Keres Variation 1.c4 e5 2.Nc3 Nf6 3.g3 c6

English Opening: King's English Variation, Two Knights' Variation Keres Variation

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

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Study Games for A23

A24

English Opening: King's English Variation, Two Knights' Variation Fianchetto Lines 1.c4 e5 2.Nc3 Nf6 3.g3 g6

English Opening: King's English Variation, Two Knights' Variation Fianchetto Lines

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

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Study Games for A24

A25

English Opening, Sicilian Reversed 1. c4 e5 2. Nc3 Nc6

English Opening, Sicilian Reversed

1. c4 e5 2. Nc3 Nc6

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Study Games for A25

A25

A26

English Opening, Closed system 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6

English Opening, Closed system

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

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English Opening: King's English Variation, Botvinnik System Prickly Pawn Pass System

1.c4 e5 2.Nc3 Nf6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.e4 O-O 7.Nge2 c6 8.O-O a6

A27

English Opening: King's English Variation, Three Knights System 1.c4 e5 2.Nc3 Nc6 3.Nf3

English Opening: King's English Variation, Three Knights System

1.c4 e5 2.Nc3 Nc6 3.Nf3

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A28

English Opening, Four Knights system 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6

English Opening, Four Knights system

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

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Study Games for A28

A28

A29

English Opening: King's English Variation, Four Knights Variation Fianchetto Lines 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3

English Opening: King's English Variation, Four Knights Variation Fianchetto Lines

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

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Study Games for A29

A30

English Opening: Symmetrical Variation 1.c4 c5

English Opening: Symmetrical Variation

1.c4 c5

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Study Games for A30

A30

A31

English Opening: Symmetrical Variation, Anti-Benoni Variation 1.c4 c5 2.Nf3 Nf6 3.d4

English Opening: Symmetrical Variation, Anti-Benoni Variation

1.c4 c5 2.Nf3 Nf6 3.d4

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Puzzels

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Study Games for A31

A32

English Opening: Symmetrical Variation, Anti-Benoni Variation Spielmann Defence 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6

English Opening: Symmetrical Variation, Anti-Benoni Variation Spielmann Defence

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6

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Puzzels

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Study Games for A32

A33

English Opening: Symmetrical Variation 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nc6

English Opening: Symmetrical Variation

1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nc6

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Study Games for A33

A34

English Opening: Symmetrical Variation 1. c4 c5 2.Nc3

English Opening: Symmetrical Variation

1. c4 c5 2.Nc3

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Study Games for A34

A34

A35

English Opening: Symmetrical Variation 1. c4 c5 2.Nc3 Nc6

English Opening: Symmetrical Variation

1. c4 c5 2.Nc3 Nc6

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Study Games for A35

A36

English Opening: Symmetrical Variation 1. c4 c5 2. Nc3 Nc6 3. g3

English Opening: Symmetrical Variation

1. c4 c5 2. Nc3 Nc6 3. g3

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Study Games for A36

A36

A37

English Opening: Symmetrical Variation 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3

English Opening: Symmetrical Variation

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

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Study Games for A37

A38

English Opening: Symmetrical Variation 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6

English Opening: Symmetrical Variation

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

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Study Games for A38

A38

English Opening: Symmetrical Variation, Duchamp Variation

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d3

A39

English Opening: Symmetrical Variation, Mecking Variation 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4

English Opening: Symmetrical Variation, Mecking Variation

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

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Puzzels

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Study Games for A39