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.
D82Grünfeld Defense: Brinckmann Attack7 plyD83Grünfeld Defense: Brinckmann Attack10 plyD84Grünfeld Defense: Brinckmann Attack15 plyD85Grünfeld Defense: Exchange Variation8 plyD86Grünfeld Defense: Exchange Variation13 plyD87Grünfeld Defense: Exchange Variation16 plyD88Grünfeld Defense: Exchange Variation21 plyD89Grünfeld Defense: Exchange Variation26 plyD90Grünfeld Defense: Flohr Variation9 plyD90Grünfeld Defense: Three Knights Variation7 plyD91Grünfeld Defense: Three Knights Variation9 plyD92Grünfeld Defense: Three Knights Variation9 plyD93Grünfeld Defense: Three Knights Variation11 plyD94Grünfeld Defense: Flohr Defense14 plyD94Grünfeld Defense: Makogonov Variation11 plyD94Grünfeld Defense: Opocensky Variation11 plyD94Grünfeld Defense: Smyslov Defense14 plyD94Grünfeld Defense: Three Knights Variation9 plyD95Grünfeld Defense: Botvinnik Variation12 plyD95Grünfeld Defense: Pachman Variation15 plyD95Grünfeld Defense: Three Knights Variation11 plyD96Grünfeld Defense: Russian Variation9 plyD97Grünfeld Defense: Russian Variation13 plyD98Grünfeld Defense: Russian Variation14 plyD99Grünfeld Defense: Russian Variation17 plyE00Catalan Opening5 plyE00Catalan Opening: Hungarian Gambit6 plyE00Indian Defense5 plyE00Indian Defense: Devin Gambit5 plyE00Indian Defense: Seirawan Attack5 plyE01Catalan Opening: Closed7 plyE02Catalan Opening: Open Defense8 plyE03Catalan Opening: Open Defense11 plyE04Catalan Opening: Open Defense9 plyE05Catalan Opening: Open Defense10 plyE06Catalan Opening: Closed9 plyE07Catalan Opening: Closed12 plyE08Catalan Opening: Closed13 plyE09Catalan Opening: Closed15 plyE09Catalan Opening: Closed Variation16 plyE10Blumenfeld Countergambit8 plyE10Blumenfeld Countergambit Accepted12 plyE10Blumenfeld Countergambit: Duz-Khotimirsky Variation9 plyE10Blumenfeld Countergambit: Spielmann Variation12 plyE10Indian Defense: Anti-Nimzo-Indian5 plyE10Indian Defense: Dzindzi-Indian Defense6 plyE10Indian Defense: Döry Indian6 plyE11Bogo-Indian Defense6 plyE11Bogo-Indian Defense: Exchange Variation8 plyE11Bogo-Indian Defense: Grünfeld Variation7 plyE11Bogo-Indian Defense: Haiti Variation8 plyE11Bogo-Indian Defense: Monticelli Trap19 plyE11Bogo-Indian Defense: New England Variation7 plyE11Bogo-Indian Defense: Nimzowitsch Variation8 plyE11Bogo-Indian Defense: Retreat Variation8 plyE11Bogo-Indian Defense: Vitolins Variation8 plyE11Bogo-Indian Defense: Wade-Smyslov Variation8 plyE12Queen's Indian Defense6 plyE12Queen's Indian Defense: Kasparov Variation7 plyE12Queen's Indian Defense: Kasparov-Petrosian Variation9 ply