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.
C24Bishop's Opening: Urusov Gambit12 plyC24Bishop's Opening: Vienna Hybrid7 plyC24Bishop's Opening: Warsaw Gambit7 plyC25Vienna Gambit5 plyC25Vienna Game3 plyC25Vienna Game: Anderssen Defense4 plyC25Vienna Game: Fyfe Gambit5 plyC25Vienna Game: Giraffe Attack5 plyC25Vienna Game: Hamppe-Meitner Variation5 plyC25Vienna Game: Hamppe-Muzio16 plyC25Vienna Game: Hamppe-Muzio Gambit11 plyC25Vienna Game: Max Lange Defense4 plyC25Vienna Game: Omaha Gambit5 plyC25Vienna Game: Paulsen Variation5 plyC25Vienna Game: Philidor Countergambit6 plyC25Vienna Game: Pierce Gambit17 plyC25Vienna Game: Stanley Variation9 plyC25Vienna Game: Zhuravlev Countergambit6 plyC26Bishop's Opening: Horwitz Gambit6 plyC26Bishop's Opening: Vienna Hybrid7 plyC26Vienna Game: Falkbeer Variation4 plyC26Vienna Game: Mengarini Variation5 plyC26Vienna Game: Mieses Variation5 plyC26Vienna Game: Paulsen Variation11 plyC26Vienna Game: Stanley Variation5 plyC27Bishop's Opening: Boden-Kieseritzky Gambit7 plyC27Vienna Game: Adams' Gambit11 plyC27Vienna Game: Frankenstein-Dracula Variation6 plyC27Vienna Game: Stanley Variation10 plyC28Bishop's Opening: Vienna Hybrid9 plyC28Vienna Game: Stanley Variation6 plyC29Vienna Game: Heyde Variation11 plyC29Vienna Game: Vienna Gambit5 plyC30King's Gambit3 plyC30King's Gambit Declined: Classical7 plyC30King's Gambit Declined: Classical Variation4 plyC30King's Gambit Declined: Hobbs-Zilbermints Gambit8 plyC30King's Gambit Declined: Keene Defense6 plyC30King's Gambit Declined: Keene's Defense4 plyC30King's Gambit Declined: Mafia Defense4 plyC30King's Gambit Declined: Miles Defense6 plyC30King's Gambit Declined: Norwalde Variation4 plyC30King's Gambit Declined: Panteldakis Countergambit4 plyC30King's Gambit Declined: Petrov's Defense4 plyC30King's Gambit Declined: Queen's Knight Defense4 plyC30King's Gambit Declined: Senechaud Countergambit6 plyC30King's Gambit Declined: Soller-Zilbermints Gambit6 plyC30King's Gambit Declined: Zilbermints Double Countergambit4 plyC30King's Gambit Declined: Zilbermints Double Gambit6 plyC31King's Gambit Declined: Falkbeer Countergambit4 plyC31King's Gambit Declined: Falkbeer Countergambit Accepted5 plyC31Van Geet Opening: Grünfeld Defense7 plyC32King's Gambit Declined: Falkbeer Countergambit9 plyC33King's Gambit Accepted4 plyC33King's Gambit Accepted: Basman Gambit5 plyC33King's Gambit Accepted: Bishop's Gambit5 plyC33King's Gambit Accepted: Breyer Gambit5 plyC33King's Gambit Accepted: Carrera Gambit5 plyC33King's Gambit Accepted: Dodo Variation5 plyC33King's Gambit Accepted: Eisenberg Variation5 ply