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Chess Atlas Codex

Codex of Opening Systems

All 126 opening families in one catalogue: search by name, move or player, and filter by the kind of position.

126families

11 families

ECO C30Article2.f4Tabiya: 5.Ne5191 lines
King's Gambit
- Open games
- Gambits
- Sharp play
- Open centre
A pawn for speed
Study opening
ECO A573…b5Tabiya: 8…g624 lines
Benko Gambit
- Semi-closed games
- Gambits
- Sharp play
- Asymmetry
A pawn for open files
Study opening
ECO A401…e5Tabiya: 6.Nc316 lines
Englund Gambit
- Semi-closed games
- Gambits
- Sharp play
A pawn on credit, the queen on a raid
Study opening
ECO B001…f5Tabiya: 4…Nc61 lines
Duras Gambit
- Semi-open games
- Gambits
- Offbeat
A pawn thrown at e4, and a bet on chaos
Study opening
ECO C213.c3Tabiya: 5…d58 lines
Danish Gambit
- Open games
- Gambits
- Sharp play
- Open centre
Two pawns for two bishops on open diagonals
Study opening
ECO C2515 lines
Vienna Gambit
- Open games
- Gambits
- Sharp play
Study opening
ECO C402…d5Tabiya: 4…Nf64 lines
Elephant Gambit
- Open games
- Gambits
- Sharp play
- Open centre
A big bite with nothing behind it
Study opening
ECO C402…f5Tabiya: 6…Qg626 lines
Latvian Gambit
- Open games
- Gambits
- Sharp play
A King's Gambit in reverse, and a move late
Study opening
ECO C443.Nxe5Tabiya: 4…Ng61 lines
Irish Gambit
- Open games
- Gambits
- Sharp play
- Open centre
A knight for a pawn and a hope for the centre
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 E104…b5Tabiya: 6…d54 lines
Blumenfeld Countergambit
- Semi-closed games
- Gambits
- Sharp play
A wing pawn for the centre
Study opening