Tree path 4 levels English Opening › Agincourt Defense › English Opening: Agincourt Defense › Catalan Defense Accepted
- Chess Codex
- English Opening A10
- Agincourt Defense A13
- English Opening: Agincourt Defense A13
- Catalan Defense Accepted A13 you are here
English Opening: Agincourt Defense, Catalan Defense Accepted
Overview
English Opening: Agincourt Defense, Catalan Defense Accepted is a named branch in the Flank Openings group of chess theory, classified under ECO A13.
The Flank Openings group covers flank openings — systems that delay the central pawn break and instead develop pieces and pawns on the wings.
It is reached after 8 plies of play, with the move sequence 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4.
In the opening tree, this line branches off from English Opening: Agincourt Defense, part of the broader English Opening system.
Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.
- ECO code
- A13
- Group
- Flank Openings (A)
- Plies
- 8
This overview is generated automatically from the opening's metadata. Know this line well? Write a description — submissions are reviewed before publishing.
Statistics from Lichess
201,031 games · White 52.1% / Draw 7.1% / Black 40.8%
| Moves | Games | W / D / B |
|---|---|---|
| O-O | 95,421 | |
| Qa4+ | 78,016 | |
| Na3 | 11,240 | |
| Qc2 | 5,125 | |
| a4 | 3,763 | |
| Nc3 | 3,368 | |
| Ne5 | 3,196 | |
| b3 | 308 |
Source: Lichess Opening Explorer · cached 2026-09-26 00:42:11
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