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
- Chess Codex
- English Opening A10
- Agincourt Defense A13
- English Opening: Agincourt Defense A13
- English Opening: Agincourt Defense A13
- English Opening: Neo-Catalan A13
- English Opening: Neo-Catalan Declined A13 you are here
English Opening: Neo-Catalan Declined
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. Know this line well? Write a description — submissions are reviewed before publishing.
Statistics from Lichess
560,450 games · White 49.2% / Draw 8.6% / Black 42.2%
| Moves | Games | W / D / B |
|---|---|---|
| O-O | 484,660 | |
| d4 | 29,574 | |
| b3 | 27,922 | |
| cxd5 | 10,482 | |
| Nc3 | 2,615 | |
| Qc2 | 2,193 | |
| d3 | 996 | |
| e3 | 497 |
Source: Lichess Opening Explorer · cached 2026-09-26 00:42:30
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Variations (2)
Show all 6 sub-variations (full subtree)
- A14 English Opening: Agincourt Defense, Neo-Catalan Declined 9-ply
- A14 English Opening: Agincourt Defense, Neo-Catalan Declined, Early b3 9-ply
- A14 English Opening: Agincourt Defense, Keres Defense 14-ply
- A14 English Opening: Agincourt Defense, Neo-Catalan Declined 11-ply
- A14 English Opening: Agincourt Defense, Neo-Catalan Declined, Early b3 10-ply
- A14 English Opening: Agincourt Defense, Neo-Catalan Declined, Early b3 10-ply