Openings
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Codex of Opening Systems
All 126 opening families in one catalogue: search by name, move or player, and filter by the kind of position.
Key set-ups
16 families
ECO D06Article2.c4Tabiya: 7…b6257 linesQueen's Gambit
- Closed games
- Positional play
Offer a pawn, build a fortress
Study opening- ECO E616…e5Tabiya: 8…Ne7119 lines
King's Indian Defense
- Semi-closed games
- Fianchetto
- Sharp play
- Closed centre
Let White build the centre: it will become a target
Study opening - ECO E003.g3Tabiya: 8…b532 lines
Catalan Opening
- Closed games
- Fianchetto
- Positional play
The queen's gambit with a bishop on g2
Study opening - ECO A483.Bf4Tabiya: 6…Nbd78 lines
London System
- Closed games
- Solid
- Set-up systems
One setup against almost anything
Study opening - ECO A401.d4Tabiya: 7…Nc682 lines
Queen's Pawn Game
- Closed games
One move, many roads
Study opening - ECO A415…Be7Tabiya: 7…c614 lines
Old Indian Defense
- Semi-closed games
- Solid
An Indian defence where the bishop stays at home
Study opening - ECO A452.b3Tabiya: 4…c51 lines
Basque Opening
- Semi-closed games
- Offbeat
A bishop on b2 with its own d4 pawn in the way
Study opening - ECO A452.f4Tabiya: 4…c51 lines
Canard Opening
- Semi-closed games
- Offbeat
The f4 pawn against the f6 knight: a Dutch-style set-up with White
Study opening - ECO A452.f3Tabiya: 5.Nxf31 lines
Paleface Attack
- Semi-closed games
- Offbeat
A pawn that takes a square from its own knight
Study opening - ECO A452.Bg5Tabiya: 4…c510 lines
Trompowsky Attack
- Semi-closed games
- Set-up systems
The bishop is out before you have opened your theory book
Study opening - ECO A463.e3Tabiya: 6.Ne51 lines
Yusupov-Rubinstein System
- Closed games
- Set-up systems
A quiet set-up: e3, Bd3 and a knight on e5
Study opening - ECO D002.Qd3Tabiya: 3…c52 lines
Amazon Attack
- Closed games
- Offbeat
The queen out early, the bishop shut in
Study opening - ECO D004.f3Tabiya: 5…c649 lines
Blackmar-Diemer Gambit
- Closed games
- Gambits
- Sharp play
- Big pawn centre
A pawn for time and an open f-file
Study opening - ECO D013.Bf4Tabiya: 4…Na64 lines
Rapport-Jobava System
- Closed games
- Sharp play
- Set-up systems
A London with a knight eyeing c7
Study opening - ECO D013.Bg5Tabiya: 4.f38 lines
Richter-Veresov Attack
- Closed games
- Set-up systems
The bishop goes first, the c-pawn stays home
Study opening - ECO D055.b3Tabiya: 7…O-O6 lines
Rubinstein Opening
- Closed games
- Positional play
A Colle with the bishop rushing to b2
Study opening