Openings
1,811 openings in the database
Browse the full opening catalog. Search by name or ECO code (e.g. “Najdorf” or “B90”), or filter by volume A–E. Click any opening to see its position on the board and the grandmaster videos played in that line.
Why do so many openings share the same code? (how ECO works)
Every chess opening is filed under one of just 500 ECO codes(A00–E99), grouped into five volumes:
- A — Flank openings (English 1.c4, 1.Nf3, irregular lines)
- B — Semi-open games except the French (Sicilian, Caro-Kann…)
- C — Open games 1.e4 e5 and the French 1.e4 e6
- D — Closed & semi-closed 1.d4 d5 (Queen’s Gambit, Grünfeld…)
- E — Indian defences (Nimzo-Indian, King’s Indian…)
A single code is a family: e.g. C50 covers the whole Italian Game / Giuoco Piano complex, so the Giuoco Piano, Giuoco Pianissimo, Hungarian Defense and Two Knights all live under C50. That’s why one code maps to many named variations — the code is the family, the name is the specific line. ChessEyes shows you both.
A04Zukertort Opening: The Walrus6 plyA04Zukertort Opening: Vos Gambit4 plyA04Zukertort Opening: Wade Defense4 plyA04Zukertort Opening: Ware Defense2 plyA05King's Indian Attack4 plyA05King's Indian Attack: Smyslov Variation5 plyA05King's Indian Attack: Spassky Variation4 plyA05King's Indian Attack: Symmetrical Defense4 plyA05King's Indian Attack: Wahls Defense10 plyA05Polish Opening: Zukertort System5 plyA05Zukertort Opening2 plyA05Zukertort Opening: Double Fianchetto Attack11 plyA05Zukertort Opening: Lemberger Gambit3 plyA05Zukertort Opening: Myers Polish Attack5 plyA05Zukertort Opening: Nimzo-Larsen Variation3 plyA05Zukertort Opening: Quiet System3 plyA06Nimzo-Larsen Attack: Classical Variation3 plyA06Nimzo-Larsen Attack: Norfolk Gambit5 plyA06Zukertort Opening2 plyA06Zukertort Opening: Ampel Variation3 plyA06Zukertort Opening: Old Indian Attack3 plyA06Zukertort Opening: Pachman Gambit7 plyA06Zukertort Opening: Regina-Nu Gambit7 plyA06Zukertort Opening: Reversed Mexican Defense3 plyA06Zukertort Opening: Santasiere's Folly3 plyA06Zukertort Opening: Tennison Gambit3 plyA06Zukertort Opening: The Potato3 plyA07Hungarian Opening: Wiedenhagen-Beta Gambit4 plyA07King's Indian Attack3 plyA07King's Indian Attack: Double Fianchetto4 plyA07King's Indian Attack: Keres Variation4 plyA07King's Indian Attack: Omega-Delta Gambit4 plyA07King's Indian Attack: Pachman System10 plyA07King's Indian Attack: Sicilian Variation4 plyA07King's Indian Attack: Yugoslav Variation8 plyA08King's Indian Attack: French Variation6 plyA08King's Indian Attack: Sicilian Variation5 plyA08Zukertort Opening: Reversed Grünfeld7 plyA09Réti Opening3 plyA09Réti Opening: Advance Variation4 plyA09Réti Opening: Penguin Variation5 plyA09Réti Opening: Reversed Blumenfeld Gambit7 plyA09Réti Opening: Réti Accepted4 plyA09Réti Opening: Réti Gambit6 plyA09Réti Opening: Zilbermints Gambit4 plyA10English Opening1 plyA10English Opening: Achilles-Omega Gambit3 plyA10English Opening: Adorjan Defense4 plyA10English Opening: Anglo-Dutch Defense2 plyA10English Opening: Anglo-Dutch Variation5 plyA10English Opening: Anglo-Lithuanian Variation2 plyA10English Opening: Anglo-Scandinavian Defense2 plyA10English Opening: Great Snake Variation2 plyA10English Opening: Jaenisch Gambit2 plyA10English Opening: King's English Variation16 plyA10English Opening: Myers Defense2 plyA10English Opening: Myers Gambit4 plyA10English Opening: Porcupine Variation7 plyA10English Opening: Wade Gambit3 plyA10English Opening: Zilbermints Gambit4 ply