Chess Codex
Tree path 6 levels English Opening › Agincourt Defense › English Opening: Agincourt Defense › English Opening: Agincourt Defense › English Opening: Neo-Catalan › English Opening: Neo-Catalan Declined
  1. Chess Codex
  2. English Opening A10
  3. Agincourt Defense A13
  4. English Opening: Agincourt Defense A13
  5. English Opening: Agincourt Defense A13
  6. English Opening: Neo-Catalan A13
  7. English Opening: Neo-Catalan Declined A13 you are here
A13

English Opening: Neo-Catalan Declined

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Overview

English Opening: Neo-Catalan Declined 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.

Play reaches this position via 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7, after 8 plies of opening development.

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

2 named variations grow from this line, including English Opening: Agincourt Defense, Neo-Catalan Declined, English Opening: Agincourt Defense, Neo-Catalan Declined, Early b3.

In total, the branch covers 6 sub-variations across all depths.

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
Parent
English Opening: Neo-Catalan
Direct variations
2
Total in subtree
6

This overview is generated automatically from the opening's metadata. A more detailed, human-written description is on the way — and you can speed it up by suggesting one yourself.

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Description

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Variations (2)

Related variations at the same level

Sister lines that share the same parent English Opening: Neo-Catalan:

Show all 6 sub-variations (full subtree)

https://test.av-webdevs.com/openings/english-opening-neo-catalan-declined