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.
A00Ware Opening: Symmetric Variation2 plyA00Ware Opening: Ware Gambit7 plyA00Ware Opening: Wing Gambit4 plyA01Nimzo-Larsen Attack1 plyA01Nimzo-Larsen Attack: Classical Variation2 plyA01Nimzo-Larsen Attack: Dutch Variation2 plyA01Nimzo-Larsen Attack: English Variation2 plyA01Nimzo-Larsen Attack: Graz Attack3 plyA01Nimzo-Larsen Attack: Indian Variation2 plyA01Nimzo-Larsen Attack: Modern Variation2 plyA01Nimzo-Larsen Attack: Pachman Gambit5 plyA01Nimzo-Larsen Attack: Polish Variation2 plyA01Nimzo-Larsen Attack: Ringelbach Gambit5 plyA01Nimzo-Larsen Attack: Spike Variation5 plyA01Nimzo-Larsen Attack: Symmetrical Variation2 plyA02Bird Opening1 plyA02Bird Opening: Batavo-Polish Attack5 plyA02Bird Opening: Double Duck Formation4 plyA02Bird Opening: From's Gambit2 plyA02Bird Opening: Hobbs Gambit2 plyA02Bird Opening: Hobbs-Zilbermints Gambit4 plyA02Bird Opening: Horsefly Defense2 plyA02Bird Opening: Lasker Gambit4 plyA02Bird Opening: Mujannah3 plyA02Bird Opening: Myers Defense2 plyA02Bird Opening: Platz Gambit4 plyA02Bird Opening: Schlechter Gambit4 plyA02Bird Opening: Siegener Gambit7 plyA02Bird Opening: Swiss Gambit7 plyA02Bird Opening: Wagner-Zwitersch Gambit3 plyA03Bird Opening: Dutch Variation2 plyA03Bird Opening: Lasker Variation6 plyA03Bird Opening: Sturm Gambit3 plyA03Bird Opening: Thomas Gambit9 plyA03Bird Opening: Williams Gambit3 plyA03Bird Opening: Williams-Zilbermints Gambit7 plyA04Colle System: Rhamphorhynchus Variation8 plyA04Modern Defense: Semi-Averbakh Variation8 plyA04Zukertort Defense: Kingside Variation4 plyA04Zukertort Defense: Sicilian Knight Variation4 plyA04Zukertort Opening1 plyA04Zukertort Opening: Arctic Defense2 plyA04Zukertort Opening: Basman Defense2 plyA04Zukertort Opening: Black Mustang Defense2 plyA04Zukertort Opening: Drunken Cavalry Variation4 plyA04Zukertort Opening: Dutch Variation2 plyA04Zukertort Opening: Herrstrom Gambit2 plyA04Zukertort Opening: Kingside Fianchetto2 plyA04Zukertort Opening: Lisitsyn Gambit3 plyA04Zukertort Opening: Lisitsyn Gambit Deferred5 plyA04Zukertort Opening: Pirc Invitation2 plyA04Zukertort Opening: Polish Defense2 plyA04Zukertort Opening: Queen's Gambit Invitation2 plyA04Zukertort Opening: Queenside Fianchetto Variation2 plyA04Zukertort Opening: Ross Gambit2 plyA04Zukertort Opening: Shabalov Gambit8 plyA04Zukertort Opening: Sicilian Invitation2 plyA04Zukertort Opening: Slav Invitation2 plyA04Zukertort Opening: Speelsmet Gambit5 plyA04Zukertort Opening: St. George Defense2 ply