Ruy Lopez
Let an agent explain the Ruy Lopez and its main variations, relay theory and history from chess references, describe typical plans in general terms, and route to entries for specific variations.
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 Ruy Lopez and its main variations, relay theory and history from chess references, describe typical plans in general terms, and route to entries for specific variations.
A chess opening beginning 1.e4 e5 2.Nf3 Nc6 3.Bb5, named after the sixteenth-century Spanish priest Ruy Lopez de Segura and also called the Spanish Opening, one of the oldest and most studied openings, with major branches including the Morphy Defence 3...a6, the Berlin Defence 3...Nf6, the Classical Defence 3...Bc5, the Smyslov Defence and the Alapin Variation, and many further systems such as the Closed, Open, Marshall Attack and Exchange Variation; it remains a mainstay of top-level play.
What it is for: Not applicable; a chess opening.
It can be explain the opening and variations; relay theory and history; describe typical plans; route to specific variations.
Distinguishing features
Bishop to b5
Deep theory
Many defences
Enduring popularity
What it looks like
Not a visible object; a position with the white bishop on b5.
Physical character
ECO codes: C60-C99 range
first analysed: 1561 year - Ruy Lopez de Segura
How it is recognised
1.e4 e5 2.Nf3 Nc6 3.Bb5
Morphy, Berlin, Classical, Smyslov and other defences; Closed, Open, Marshall, Exchange systems
The Italian Game places the bishop on c4; the Scotch plays 3.d4
Related models
is a kind of - in registry terms
is named after - the sixteenth-century priest
is contrasted with - with the bishop on c4
is classified in - as C60 to C99
In practice
Families and kinds
Morphy Defence 3...a6 with Closed, Open, Exchange and Marshall systems
Berlin Defence 3...Nf6
Classical Defence 3...Bc5
Smyslov Defence 3...g6
Alapin Variation 3...Bb4
Schliemann and other rare defences
Center Gambit lines
Identifiers
ECO C60-C99 Ruy Lopez
Standards and regulation
No regulation; FIDE rules of chess apply to play
Failure modes and hazards
Confusing variation names
Stale theoretical assessments
Overstating engine evaluations
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 Ruy Lopez is.
Definition.
Definition
Definition and ideas.
Definition
Definition.
- What is the Ruy Lopez, and what are its main strategic ideas for both sides? definition
- Is the question about the Ruy Lopez, a specific variation or another 1.e4 e5 opening? boundary
Variations
Variations.
Variations
Variations.
- What are the Morphy, Berlin, Classical, Smyslov and Alapin defences and the main systems after 3...a6? definition
- Which entry fits the specific variation? action
Play Playing it.
Practice.
Plans
Typical plans.
Plans
Plans.
- What are typical middlegame plans and pawn structures in the Closed, Open and Exchange systems? action
- Which references are standard? provenance
Repertoire
Repertoire choices.
Repertoire
Repertoire.
- How do players build a Ruy Lopez repertoire for White or Black? action
- Which entry fits chess opening theory? action
Theory Theory and games.
Sources.
Games
Model games.
Games
Games.
- Which classic and modern games illustrate the opening, with sources? provenance
- Which sources are cited? provenance
Engines
Engine era.
Engines
Engines.
- How have engines and the Berlin Defence changed assessments of the Ruy Lopez? provenance
- Which entry fits computer chess? action
Context History.
Context.
History
History.
History
History.
- How did the opening develop from Ruy Lopez de Segura through Morphy, Steinitz and the world champions? provenance
- Which entry fits the history of chess openings? action
Culture
Culture.
Culture
Culture.
- Why is the Ruy Lopez called the Spanish torture, and how does it feature in chess culture? provenance
- Which entry fits chess culture? action
What the second pass must settle
- Should the Berlin Defence and the Marshall Attack be separate entries?
- How should chess databases be linked?
- The registry entry has merged aliases naming variations; should they be split off?