♞ Chess1

Chess Openings

3810 ECO lines with main-line moves and diagrams. Start with the flagship families, or browse by volume.

Flagship openings

Sicilian Defense B20
2 plies in the main line
French Defense C00
2 plies in the main line
English Opening A10
1 plies in the main line
Caro-Kann Defense B10
2 plies in the main line
Queen's Pawn Game A40
1 plies in the main line
Queen's Pawn Game A41
2 plies in the main line
Queen's Pawn Game D00
2 plies in the main line
Dutch Defense A80
2 plies in the main line
Alekhine Defense B02
2 plies in the main line
Indian Defense A45
2 plies in the main line
Zukertort Opening A04
1 plies in the main line
Zukertort Opening A05
2 plies in the main line
Zukertort Opening A06
2 plies in the main line
Scandinavian Defense B01
2 plies in the main line
Réti Opening A09
3 plies in the main line
Nimzowitsch Defense B00
2 plies in the main line
Modern Defense B06
2 plies in the main line
King's Pawn Game B00
1 plies in the main line
King's Pawn Game C20
2 plies in the main line
Van Geet Opening A00
1 plies in the main line
Bird Opening A02
1 plies in the main line
Pirc Defense B00
2 plies in the main line
Polish Opening A00
1 plies in the main line
King's Indian Attack A07
3 plies in the main line

All lines by ECO volume

A — Flank openings (817)B — Semi-open games (772)C — Open games & French (1250)D — Closed & semi-closed (614)E — Indian defenses (357)

C — Open games & French

NameECOMoves
Ruy Lopez: Exchange Variation, Romanovsky VariationC6811
Ruy Lopez: Exchange, Alekhine VariationC6814
Ruy Lopez: Exchange Variation, Alapin GambitC6912
Ruy Lopez: Exchange Variation, Bronstein VariationC6910
Ruy Lopez: Exchange Variation, Gligoric VariationC6910
Ruy Lopez: Exchange Variation, King's Bishop VariationC6910
Ruy Lopez: Exchange Variation, Normal VariationC699
Ruy Lopez: Bird's Defense DeferredC708
Ruy Lopez: Morphy DefenseC706
Ruy Lopez: Morphy Defense, Alapin's Defense DeferredC708
Ruy Lopez: Morphy Defense, Caro VariationC708
Ruy Lopez: Morphy Defense, Classical Defense DeferredC708
Ruy Lopez: Morphy Defense, Cozio DefenseC708
Ruy Lopez: Morphy Defense, Fianchetto Defense DeferredC708
Ruy Lopez: Morphy Defense, Graz VariationC7010
Ruy Lopez: Morphy Defense, Norwegian VariationC7010
Ruy Lopez: Morphy Defense, Norwegian Variation, Nightingale GambitC7011
Ruy Lopez: Morphy Defense, Schliemann Defense DeferredC708
Ruy Lopez: Morphy Defense, Schliemann Defense Deferred, Jaenisch Gambit DeferredC709
Ruy Lopez: Morphy Defense, Modern Steinitz DefenseC718
Ruy Lopez: Morphy Defense, Modern Steinitz DefenseC719
Ruy Lopez: Morphy Defense, Modern Steinitz DefenseC719
Ruy Lopez: Noah's Ark TrapC7116
Ruy Lopez: Closed, Kecskemet VariationC7218
Ruy Lopez: Morphy Defense, Modern Steinitz DefenseC729
Ruy Lopez: Morphy Defense, Modern Steinitz DefenseC7311
Ruy Lopez: Morphy Defense, Modern Steinitz DefenseC7312
Ruy Lopez: Morphy Defense, Modern Steinitz DefenseC749
Ruy Lopez: Morphy Defense, Modern Steinitz DefenseC7413
Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Siesta VariationC7410
Ruy Lopez: Morphy Defense, Modern Steinitz DefenseC7510
Ruy Lopez: Morphy Defense, Modern Steinitz DefenseC7512
Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Fianchetto VariationC7612
Ruy Lopez: Morphy Defense, Anderssen VariationC779
Ruy Lopez: Morphy Defense, Bayreuth VariationC779
Ruy Lopez: Morphy Defense, Duras VariationC7711
Ruy Lopez: Morphy Defense, Jaffe GambitC779
Ruy Lopez: Morphy Defense, Mackenzie VariationC779
Ruy Lopez: Morphy Defense, Tarrasch VariationC779
Ruy Lopez: Morphy Defense, Wormald AttackC779
Ruy Lopez: Wormald Attack, Grünfeld VariationC7716
Ruy Lopez: Brix VariationC7810
Ruy Lopez: Central CountergambitC7810
Ruy Lopez: Morphy DefenseC789
Ruy Lopez: Morphy DefenseC7812
Ruy Lopez: Morphy Defense, Arkhangelsk VariationC7812
Ruy Lopez: Morphy Defense, Møller VariationC7810
Ruy Lopez: Morphy Defense, Neo-Arkhangelsk VariationC7812
Ruy Lopez: Morphy Defense, Wing AttackC7813
Ruy Lopez: Rabinovich VariationC7820
Ruy Lopez: Morphy Defense, Steinitz DeferredC7910
Ruy Lopez: Morphy Defense, Steinitz DeferredC7914
Ruy Lopez: Steinitz Defense Deferred, Boleslavsky VariationC7919
Ruy Lopez: Steinitz Defense Deferred, Lipnitsky VariationC7914
Ruy Lopez: Morphy Defense, Tartakower VariationC8011
Ruy Lopez: OpenC8010
Ruy Lopez: OpenC8011
Ruy Lopez: OpenC8013
Ruy Lopez: OpenC8015
Ruy Lopez: Open, Berger VariationC8019
Ruy Lopez: Open, Bernstein VariationC8017
Ruy Lopez: Open, Bernstein Variation, Luther LineC8019
Ruy Lopez: Open, Friess AttackC8013
Ruy Lopez: Open, Harksen GambitC8015
Ruy Lopez: Open, Karpov GambitC8021
Ruy Lopez: Open, Knorre VariationC8011
Ruy Lopez: Open, Main LineC8016
Ruy Lopez: Open, Richter VariationC8013
Ruy Lopez: Open, Riga VariationC8012
Ruy Lopez: Open, Schlechter DefenseC8016
Ruy Lopez: Open, Skipworth GambitC8012
Ruy Lopez: Open, Zukertort VariationC8016
Ruy Lopez: Open, Howell AttackC8117
Ruy Lopez: Open, Howell AttackC8119
Ruy Lopez: Open, Howell Attack, Ekstrom VariationC8124
Ruy Lopez: OpenC8217
Ruy Lopez: Open, Berlin VariationC8218
Ruy Lopez: Open, Dilworth VariationC8222
Ruy Lopez: Open, Italian VariationC8218
Ruy Lopez: Open, Motzko AttackC8219
Ruy Lopez: Open, Motzko Attack, Nenarokov VariationC8220
Ruy Lopez: Open, St. Petersburg VariationC8219
Ruy Lopez: Open, Breslau VariationC8322
Ruy Lopez: Open, Classical DefenseC8318
Ruy Lopez: Open, Classical DefenseC8320
Ruy Lopez: Open, Classical Defense, Main LineC8319
Ruy Lopez: Open, Malkin VariationC8321
Ruy Lopez: Open, Tarrasch TrapC8325
Ruy Lopez: ClosedC8410
Ruy Lopez: Closed, Basque GambitC8415
Ruy Lopez: Closed, Center AttackC8411
Ruy Lopez: Closed, Center Attack, Basque GambitC8416
Ruy Lopez: Closed, Martinez VariationC8411
Ruy Lopez: Closed, Morphy AttackC8411
Ruy Lopez: Closed, Delayed ExchangeC8511
Ruy Lopez: Closed, Worrall AttackC8611
Ruy Lopez: Closed, Worrall Attack, Castling LineC8614
Ruy Lopez: Closed, Worrall Attack, Castling LineC8617
Ruy Lopez: Closed, Worrall Attack, Delayed Castling LineC8614
Ruy Lopez: Closed, Averbakh VariationC8712

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Family pages group related lines: the family head with a diagram, main continuations and every catalogued variation.

Volume A Volume B Volume C Volume D Volume E Gambits Defenses