Tree path 4 levels English Opening › Agincourt Defense › English Opening: Agincourt Defense › Catalan Defense Accepted
A13

English Opening: Agincourt Defense, Catalan Defense Accepted

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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.

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ECO code
A13
Group
Flank Openings (A)
Plies
8
Parent
English Opening: Agincourt Defense

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