Tree path 6 levels English Opening › Agincourt Defense › English Opening: Agincourt Defense › English Opening: Agincourt Defense › English Opening: Neo-Catalan › English Opening: Agincourt Defense, Bogoljubow Defense
A13

English Opening: Agincourt Defense, Bogoljubow Defense

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Overview

English Opening: Agincourt Defense, Bogoljubow Defense 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.

The line arises from 8 plies — specifically the moves 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Bd6.

In the opening tree, this line branches off from English Opening: Neo-Catalan, part of the broader English Opening system.

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ECO code
A13
Group
Flank Openings (A)
Plies
8
Parent
English Opening: Neo-Catalan

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

46,725 games · White 53.3% / Draw 6.5% / Black 40.1%

MovesGamesW / D / B
O-O35,343
d44,742
b32,903
cxd52,176
Nc3759
Qc2280
d3278
e350

Source: Lichess Opening Explorer · cached 2026-09-26 00:42:01

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