♞ 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: ClosedC8813
Ruy Lopez: ClosedC8814
Ruy Lopez: Closed, Alekhine GambitC8827
Ruy Lopez: Closed, Anti-MarshallC8815
Ruy Lopez: Closed, Balla VariationC8821
Ruy Lopez: Closed, Leonhardt VariationC8826
Ruy Lopez: Closed, Rosen AttackC8815
Ruy Lopez: Closed, Trajkovic CounterattackC8814
Ruy Lopez: Noah's Ark TrapC8820
Ruy Lopez: Marshall AttackC8916
Ruy Lopez: Marshall AttackC8920
Ruy Lopez: Marshall Attack, Main LineC8923
Ruy Lopez: Marshall Attack, Main Line, Spassky VariationC8936
Ruy Lopez: Marshall Attack, Modern Main LineC8928
Ruy Lopez: Marshall Attack, Modern VariationC8922
Ruy Lopez: Marshall Attack, Original Marshall AttackC8922
Ruy Lopez: Marshall Attack, Re3 VariationC8927
Ruy Lopez: Marshall Attack, Steiner VariationC8918
Ruy Lopez: ClosedC9016
Ruy Lopez: Closed, Lutikov VariationC9017
Ruy Lopez: Closed, Pilnik VariationC9017
Ruy Lopez: Closed, Suetin VariationC9017
Ruy Lopez: Closed, Bogoljubow VariationC9118
Ruy Lopez: Closed, Yates VariationC9117
Ruy Lopez: Closed, Yates Variation, Short AttackC9119
Ruy Lopez: ClosedC9217
Ruy Lopez: Closed, Flohr SystemC9218
Ruy Lopez: Closed, Karpov VariationC9218
Ruy Lopez: Closed, Kholmov VariationC9218
Ruy Lopez: Closed, Smyslov-Breyer-Zaitsev HybridC9224
Ruy Lopez: Closed, Zaitsev SystemC9218
Ruy Lopez: Closed, Smyslov DefenseC9318
Ruy Lopez: Closed, Breyer DefenseC9418
Ruy Lopez: Closed, Breyer Defense, Quiet VariationC9419
Ruy Lopez: Closed, BreyerC9519
Ruy Lopez: Closed, Breyer DefenseC9524
Ruy Lopez: Closed, Breyer DefenseC9521
Ruy Lopez: Closed, Breyer Defense, Zaitsev HybridC9520
Ruy Lopez: Closed, Borisenko VariationC9622
Ruy Lopez: Closed, Chigorin DefenseC9619
Ruy Lopez: Closed, Chigorin DefenseC9620
Ruy Lopez: Closed, Chigorin Defense, Gajewski GambitC9620
Ruy Lopez: Closed, Keres DefenseC9622
Ruy Lopez: Closed, Rossolimo DefenseC9622
Ruy Lopez: Closed, Chigorin DefenseC9718
Ruy Lopez: Closed, Chigorin DefenseC9722
Ruy Lopez: Closed, Chigorin, Yugoslav SystemC9728
Ruy Lopez: Closed, Chigorin DefenseC9824
Ruy Lopez: Closed, Chigorin DefenseC9825
Ruy Lopez: Closed, Chigorin Defense, Panov SystemC9925

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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