Open Game
Let an agent explain the Open Game family, identify its main and minor openings with ECO codes, relay their assessment and history from opening references, and distinguish open games from semi-open and closed games.
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 Open Game family, identify its main and minor openings with ECO codes, relay their assessment and history from opening references, and distinguish open games from semi-open and closed games.
A family of chess openings beginning with 1.e4 e5, the King Pawn Game with symmetrical reply, leading to openings such as the Ruy Lopez, Italian Game, Scotch Game, Petrov Defence and King Gambit, mostly through the King Knight Opening 2.Nf3, as well as rare and dubious lines such as the Napoleon Opening, Alapin Opening, Wayward Queen Attack, Gunderam Defence and the joke Bongcloud Attack; open games are the classical starting point for chess instruction and produce open, tactical positions.
What it is for: Not applicable; a chess opening family.
It can be explain the family and main lines; identify minor and dubious lines; relay assessments and history; distinguish from other families.
Distinguishing features
Symmetrical king pawn start
Classical instruction basis
Tactical character
Many named lines
What it looks like
Not a physical object; a board position after 1.e4 e5.
Physical character
ECO codes: C20 to C99 range
How it is recognised
Openings after 1.e4 e5
Ruy Lopez, Italian, Scotch, Petrov, King Gambit and rare lines
Semi-open games answer 1.e4 with other moves; closed games begin 1.d4 d5
Related models
is a kind of - in registry terms
includes - the most studied line
is contrasted with - where Black avoids 1...e5
is classified in - volume C
In practice
Families and kinds
King Knight Opening lines: Ruy Lopez, Italian Game, Scotch Game, Petrov Defence, Philidor Defence
King Gambit and Vienna Game
Bishop Opening and Centre Game
rare openings such as Napoleon, Alapin, Wayward Queen and Portuguese
dubious and joke lines such as the Bongcloud
defences such as the Gunderam
Identifiers
ECO C20-C99 open games
Standards and regulation
FIDE laws of chess
No regulation of openings
Failure modes and hazards
Confusing families and names
Treating joke lines as serious
Stale theory
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 open games are.
Definition.
Definition
Definition and main lines.
Definition
Definition.
- What are open games, and what are the main openings after 1.e4 e5? definition
- Is the opening an open, semi-open or closed game? boundary
Minor
Minor and rare lines.
Minor
Minor.
- What are the rare and dubious open game lines, and why are they rarely played? definition
- Which entry fits the specific opening? action
Play Playing open games.
Practice.
Ideas
Strategic ideas.
Ideas
Ideas.
- What strategic and tactical themes characterise open games? provenance
- Which references are standard? provenance
Learning
Learning.
Learning
Learning.
- Why are open games recommended for beginners, and how are they studied? provenance
- Which entry fits chess instruction? action
History History and theory.
Context.
History
History.
History
History.
- How did open games dominate romantic chess and evolve in modern practice? provenance
- Which sources are cited? provenance
Engines
Engine assessment.
Engines
Engines.
- How do engines assess the main and minor open games today? provenance
- Which entry fits chess engine analysis? action
Context Culture.
Context.
Culture
Culture and memes.
Culture
Culture.
- How did lines such as the Bongcloud become internet culture? provenance
- Which entry fits the Bongcloud Attack? action
Naming
Naming conventions.
Naming
Naming.
- How are openings named and coded? provenance
- Which entry fits chess opening nomenclature? action
What the second pass must settle
- Should each major opening be a separate entry?
- How should opening databases be linked?
- The registry entry has merged aliases naming rare and joke lines; should they be split off?