French defence
Let an agent explain the French Defence and its main variations, relay strategic ideas, typical plans and theory from chess references, describe its history and notable practitioners, and distinguish the French from other semi-open defences and from unrelated meanings of French defence.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain the French Defence and its main variations, relay strategic ideas, typical plans and theory from chess references, describe its history and notable practitioners, and distinguish the French from other semi-open defences and from unrelated meanings of French defence.
A chess opening beginning with the moves 1.e4 e6, in which Black prepares d5 to challenge the centre while accepting a somewhat restricted light-squared bishop, leading to main lines such as the Advance, Exchange, Tarrasch, Classical and Winawer variations, and to gambit tries including the Reti Gambit, the Diemer-Duhm Gambit and rarer lines such as the Baurle and Ticulat gambits; the French Defence is a solid, counterattacking opening used at all levels since the 19th century.
What it is for: Not applicable; a chess opening.
It can be explain the opening and variations; relay strategic ideas; describe history and players; distinguish from other openings.
Distinguishing features
Pawn chain structures
Restricted light-squared bishop
Counterattack on the centre
Rich theory
What it looks like
Not a visible object; a position after 1.e4 e6.
Physical character
ECO codes: C00-C19 range
defining moves: 1.e4 e6 moves
named after: a Paris versus London correspondence match note - 1834
How it is recognised
Chess opening 1.e4 e6
Advance, Exchange, Tarrasch, Classical and Winawer variations; Reti, Diemer-Duhm, Baurle and Ticulat gambits
The Caro-Kann begins 1.e4 c6; the Sicilian 1.e4 c5; French defence in military terms is unrelated
Related models
is a kind of - in registry terms
begins with - after 1.e4
is contrasted with - another solid reply to 1.e4
is classified in - codes C00 to C19
In practice
Families and kinds
Advance Variation
Exchange Variation
Tarrasch Variation
Classical Variation including the Steinitz and Burn lines
Winawer Variation
gambits such as the Reti Gambit, Diemer-Duhm Gambit, Baurle Gambit and Ticulat Gambit
minor lines such as the King s Indian Attack against the French
Standards and regulation
FIDE laws of chess
ECO classification conventions
Failure modes and hazards
Confusing variation names
Outdated theory
Confusing with unrelated senses of French defence
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What the French Defence is.
Definition.
Definition
Definition and ideas.
Definition
Definition.
- What is the French Defence, and what are Black s strategic ideas and typical pawn structures? definition
- Is the question about the chess opening or another sense of French defence? boundary
Variations
Variations.
Variations
Variations.
- How do the Advance, Exchange, Tarrasch, Classical and Winawer variations differ, and what are the Reti, Diemer-Duhm and other gambits? definition
- Which entry fits the specific variation? action
Play Playing the French.
Practice.
Plans
Plans for both sides.
Plans
Plans.
- What are the typical plans for White and Black in the main lines? action
- Which references are standard? provenance
Repertoire
Repertoire building.
Repertoire
Repertoire.
- How do players build a French repertoire, and which lines suit different styles? action
- Which sources are cited? provenance
History History.
Sources.
Origins
Origins.
Origins
Origins.
- How did the French Defence get its name, and how did its theory develop? provenance
- Which entry fits the history of chess openings? action
Players
Notable players.
Players
Players.
- Which players are known for the French, from Nimzowitsch and Botvinnik to Korchnoi and modern grandmasters? provenance
- Which entry fits the specific player? action
Context Theory and engines.
Context.
Theory
Modern theory.
Theory
Theory.
- How have engines and databases changed assessments of French lines? provenance
- Which entry fits chess opening theory? action
Comparison
Comparison.
Comparison
Comparison.
- How does the French compare with the Caro-Kann and Sicilian as replies to 1.e4? provenance
- Which entry fits the specific opening? action
What the second pass must settle
- Should the Winawer and Advance variations be separate primary entries?
- How should chess references be linked?
- The registry entry has merged aliases naming variations and obscure gambits; should they be split off?