Variances on Chess Boards

 Variances on Chess Boards – Eco Code A 

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A00

Irregular Openings

A01

Nimzovich

A02-A03

Bird

A04-A09

Réti

A10-A39

English

A40

Irregular Queen’s Pawn

A41-A42

Modern

A43-A44

Old Benoni

A45-A50

Indian

A51-A52

Budapest

A53-A55

Old Indian

A56

Benoni

A57-A59

Benko Gambit

A60-A79

Modern Benoni

A80-A99

Dutch

 

 

 Variances on Chess Boards – Eco Code B 

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B00

Irregular King’s Pawn

B01

Scandinavian Game

B02-B05

Alekhine

B06

Modern and Pterodactyl Defence

B07-B09

Pirc Defence

B10-B19

Caro-Kann

B20-B59

Sicilian part I

B60-B99

Sicilian part II

 

 

 Variances on Chess Boards – Eco Code C 

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C00-C19

French

C20

King’s Pawn

C21-C22

Center Game

C23-C24

Bishop Opening

C25-C28

Vienna Game

C29

Vienna Gambit

C30

King’s Gambit Declined

C31-C32

Falkbeer Counter-Gambit

C33-C39

King’s Gambit Accepted

C40

Irregular King’s Knight

C41

Philidor Defence

C42-C43

Russian Game

C44-C45

King’s Knight/Ponziani/Scotch

C46

Four/Three Knights

C47-C49

Four Knights

C50

Italian Game

C51-C52

Evans Gambit

C53-C54

Giuoco Piano

C55-C59

Two Knights

C60-C99

Spanish: Ruy Lopez

 

 

 Variances on Chess Boards – Eco Code D 

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D00-D05

Queen’s Pawn

D06-D09

Queen’s Gambit

D10-D19

Slav Defence

D20-D29

Queen’s Gambit Accepted

D30-D69

Queen’s Gambit Declined

D70-D99

Gruenfeld

 

 

 Variances on Chess Boards – Eco Code E 

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E00-E09

Catalan

E10

Blumenfeld/Irregular Indian

E11

Bogo-Indian

E12-E19

Queen’s Indian

E20-E59

Nimzo-Indian

E60-E99

King’s Indian