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List of chess openings

This is a list of chess openings, organized by the Encyclopaedia of Chess Openings (ECO) code. In 1966, Chess Informant categorized the chess openings into five broad areas ("A" through "E"), with each of those broken down into one hundred subcategories ("00" through "99"). The openings were published in five volumes of ECO, with volumes labeled "A" through "E". This is a list of chess openings by the ECO classification.

 

A

A00-A39

White first moves other than 1.e4, 1.d4:

  • Anderssen's Opening, Polish Gambit: 1...a5 2.b4
  • Bugayev Attack 2...e5
  • Anderssen's Opening, Creepy Crawly Formation: 1...e5 2.h3 d5
  • Anderssen's Opening, Andersspike: 1...g6 2.g4
  • Ware Opening, 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
  • 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
  • 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
  • From Gambit: 1...e5 (without: 2.e4)
  • Symmetrical variation: 1...f5
  • Mujannah-Sturm Gambit: 2.c4
  • Lasker variation: 2.e3
  • Williams Gambit: 2.e4
  • Santassiere's Folly: 2.b4
  • Keres variation: 2...Bg4
  • Yugoslav variation: 2...c6
  • Advance variation: 2...d5 3.d4
  • Accepted: 2...d5 3.cxd4
  • English Anglo-Dutch: 1...f5
  • English Vector: 1...d5
  • English Bogoljubov variation: 3...Bg4
  • English London Defence: 3...Nf6 4.g3 Bf5
  • Anglo-Grünfeld: 2...d5
  • Botvinnik System: 6.e4
  • Geller variation: 6.g3 Qb6
  • Four Knights: 3.e3 Nf6 4.Nf3

A40-A44

1.d4 without 1...d5 or 1...Nf6: Atypical replies to 1.d4

A45-A49

1.d4 Nf6 without 2.c4: Atypical replies to 1...Nf6

A50-A79

1.d4 Nf6 2.c4 without 2...e6 or 2...g6: Atypical Indian systems

A80-A99

1.d4 f5: Dutch Defence

B

B00-B19

1.e4 without 1...c5, 1...e6 or 1...e5

B20-B99

1.e4 c5: Sicilian Defence

C

C00-C19

1.e4 e6: French Defence

C20-C99

1.e4 e5: Open Game

D

D00-D69

1.d4 d5: Closed Game

D70-D99

1.d4 Nf6 2.c4 g6 with 3...d5: Grünfeld Defence

E

E00-E59

1.d4 Nf6 2.c4 e6: Indian systems with ...e6

E60-E99

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

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